{"id":6762,"date":"2025-09-29T14:09:30","date_gmt":"2025-09-29T06:09:30","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=6762"},"modified":"2025-09-29T14:09:41","modified_gmt":"2025-09-29T06:09:41","slug":"yolo%e5%85%a5%e9%97%a8%e6%95%99%e7%a8%8b%ef%bc%88%e4%ba%8c%ef%bc%89%ef%bc%9a%e6%b5%85%e6%9e%90yolov1","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/yolo\/yolo%e5%85%a5%e9%97%a8%e6%95%99%e7%a8%8b%ef%bc%88%e4%ba%8c%ef%bc%89%ef%bc%9a%e6%b5%85%e6%9e%90yolov1\/","title":{"rendered":"YOLO\u5165\u95e8\u6559\u7a0b\uff08\u4e8c\uff09\uff1a\u6d45\u6790YOLOv1"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li>\u5b66\u4e60\u6559\u6848\uff1ahttps:\/\/zhuanlan.zhihu.com\/p\/364367221<\/li>\n\n\n\n<li>\u4f5c\u8005\uff1aKissrabbit<\/li>\n\n\n\n<li>\u4f5c\u8005\u4e66\u7c4d\uff1a\u300aYOLO\u76ee\u6807\u68c0\u6d4b\u300b<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4eca\u5929\u5927\u76d8\u538b\u5236\u5f97\u597d\u5389\u5bb3\uff0c\u6e2f\u80a1\u6ca1\u60f3\u5230\u4e5f\u8fd9\u9b3c\u6837\u5b50\uff0c\u7b97\u4e86\uff0c\u8fd8\u662f\u5b66\u4e60YOLO\u5427\uff01\uff01\uff01<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5c0f\u767d\u771f\u7684\u662f\u597d\u591a\u90fd\u4e0d\u61c2\uff0c\u539f\u4f5c\u7cbe\u6e5b\u7b80\u77edBLOG\uff0c\u5728\u6211\u7684\u9605\u8bfb\u5570\u55e6\u7b14\u8bb0\u540e\uff0c\u957f\u5ea6x6\uff01\uff01\uff01<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/mp.weixin.qq.com\/s?__biz=MzUyOTY5NzkwNg==&amp;mid=2247504298&amp;idx=1&amp;sn=76d86aff452c33395833914e77006f35&amp;scene=21#wechat_redirect\" target=\"_blank\" rel=\"noreferrer noopener\" rel=\"nofollow\" >\u3010YOLO\u5165\u95e8\u6559\u7a0b\uff08\u4e00\uff09\uff1a\u76ee\u6807\u68c0\u6d4b\u7ed3\u6784\u6d45\u6790\u3011<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e00\u3001YOLOv1\u7684\u7f51\u7edc\u67b6\u6784<\/h1>\n\n\n\n<p>\u4f5c\u4e3a<strong>One-stage<\/strong>\u5de5\u4f5c\u7684\u5f00\u5c71\u4e4b\u7956\uff0cYOLOv1\u4ee5\u5176\u7b80\u6d01\u7684\u7f51\u7edc\u7ed3\u6784\u548cGPU\u5b9e\u65f6\u68c0\u6d4b\u901f\u5ea6\u800c\u4e00\u9e23\u60ca\u4eba\uff0c\u6253\u7834\u4e86R-CNN\u7684\u201c\u5784\u65ad\u201d\u5730\u4f4d\uff0c\u4e3a\u76ee\u6807\u68c0\u6d4b\u9886\u57df\u5e26\u6765\u5de8\u5927\u7684\u53d8\u9769\u3002<\/p>\n\n\n\n<p>\u4ee5\u73b0\u5728\u7684\u773c\u5149\u6765\u770b\u5f85YOLOv1\uff0c\u4f1a\u53d1\u73b0\u5176\u4e2d\u5f88\u591a\u5f0a\u7aef\uff0c\u4e0d\u8fc7\uff0c\u5728\u5f53\u5e74\uff0cYOLOv1\u53ef\u662f\u7099\u624b\u53ef\u70ed\uff0c\u4e3a\u540e\u6765\u8bb8\u591aone-stage\u5de5\u4f5c\u63d0\u4f9b\u4e86\u6846\u67b6\u57fa\u7840\u3002\u5176\u91cc\u7a0b\u7891\u610f\u4e49\u4e0d\u53ef\u78e8\u706d\u3002<\/p>\n\n\n\n<p>YOLO-v1\u6700\u5927\u7684\u7279\u70b9\u5c31\u5728\u4e8e\uff1a<strong>\u4ec5\u4f7f\u7528\u4e00\u4e2a\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u7aef\u5230\u7aef\u5730\u5b9e\u73b0\u68c0\u6d4b\u7269\u4f53\u7684\u76ee\u7684<\/strong>\u3002\u5176\u7f51\u7edc\u6574\u4f53\u7684\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"420\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060728936-1024x420.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6763 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060728936-1024x420.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060728936-300x123.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060728936-768x315.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060728936.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"420\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060728936-1024x420.jpg\" alt=\"\" class=\"wp-image-6763\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060728936-1024x420.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060728936-300x123.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060728936-768x315.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060728936.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u8fd9\u4e2a\u5206\u62e3\u4e2d\u5fc3\uff08YOLO\u7f51\u7edc\uff09\u7684\u4efb\u52a1\u975e\u5e38\u660e\u786e\uff1a\u6536\u5230\u4e00\u5f20\u56fe\u7247\uff08\u4e00\u4e2a\u5305\u88f9\uff09\uff0c\u5c31\u8981\u7acb\u523b\u5224\u65ad\u51fa\u8fd9\u5f20\u56fe\u7247\u91cc\u6709\u4ec0\u4e48\u7269\u4f53\uff08\u5305\u88f9\u91cc\u662f\u4ec0\u4e48\u4e1c\u897f\uff09\u3001\u4ee5\u53ca\u5b83\u4eec\u7684\u4f4d\u7f6e\uff08\u4e1c\u897f\u653e\u5728\u5305\u88f9\u7684\u54ea\u4e2a\u4f4d\u7f6e\uff09\u3002\u6700\u7ec8\uff0c\u5b83\u9700\u8981\u8f93\u51fa 30\u4e2a \u6700\u7ec8\u4fe1\u606f\u3002\u8fd930\u4e2a\u4fe1\u606f\u5c31\u5305\u542b\u4e86\u201c\u6709\u4ec0\u4e48\u201d\u548c\u201c\u5728\u54ea\u91cc\u201d\u7684\u7b54\u6848\u3002<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u8be6\u89e3\u5206\u62e3\u6d41\u6c34\u7ebf\uff08\u56fe\u7247\uff09<\/p>\n<\/blockquote>\n\n\n\n<p>\u6211\u4eec\u73b0\u5728\u5c31\u4ece\u5de6\u5230\u53f3\uff0c\u8ddf\u7740\u5305\u88f9\uff08\u56fe\u7247\uff09\u8d70\u4e00\u904d\u8fd9\u4e2a\u6d41\u6c34\u7ebf\uff1a<\/p>\n\n\n\n<p><strong>1. \u5165\u53e3 - \u539f\u59cb\u5305\u88f9 (Input)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5c3a\u5bf8\uff1a448 x 448 x 3<\/strong><\/li>\n\n\n\n<li><strong>\u89e3\u8bfb\uff1a<\/strong>\u00a0\u4e00\u4e2a\u56fa\u5b9a\u7684\u3001\u6807\u51c6\u5316\u5927\u5c0f\u7684\u5305\u88f9\u3002<code>448x448<\/code>\u00a0\u662f\u5305\u88f9\u7684\u5c3a\u5bf8\uff0c<code>3<\/code>\u00a0\u4ee3\u8868\u8fd9\u4e2a\u5305\u88f9\u67093\u79cd\u4e0d\u540c\u7684\u4fe1\u606f\u5355\uff08\u5bf9\u5e94\u989c\u8272\u7684RGB\u4e09\u901a\u9053\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>2. \u521d\u7ea7\u5206\u62e3 - \u7c97\u770b (\u524d\u9762\u7684\u5377\u79ef\u548c\u6c60\u5316\u5c42)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5305\u88f9\u8fdb\u5165\u6d41\u6c34\u7ebf\uff0c\u5148\u7ecf\u8fc7\u51e0\u4e2a\u5927\u7684\u3001\u5feb\u901f\u7684\u5206\u62e3\u673a\u5668\u3002<\/li>\n\n\n\n<li><strong>\u4f8b\u5982\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>Conv 7x7\/2, 64<\/code>\uff1a\u7b2c\u4e00\u53f0\u673a\u5668\u3002\u5b83\u7528\u4e00\u4e2a7x7\u7684\u5927\u7bee\u5b50\uff0c\u4e00\u6b21\u770b\u4e00\u5927\u7247\u533a\u57df\uff0c\u5feb\u901f\u5206\u51fa64\u79cd\u6700\u660e\u663e\u7684\u7279\u5f81\uff08\u6bd4\u5982\u662f\u786c\u7684\u8fd8\u662f\u8f6f\u7684\uff0c\u662f\u4ec0\u4e48\u989c\u8272\u7684\uff09\u3002<\/li>\n\n\n\n<li><code>Maxpool 2x2\/2<\/code>\uff1a\u4e00\u53f0\u538b\u7f29\u6253\u5305\u673a\u3002\u5b83\u628a\u521a\u624d\u5206\u62e3\u51fa\u7684\u4fe1\u606f\u8fdb\u884c\u538b\u7f29\uff0c\u53ea\u4fdd\u7559\u6bcf\u4e2a\u533a\u57df\u91cc\u6700\u6700\u91cd\u8981\u7684\u90a3\u6761\u4fe1\u606f\uff0c\u6254\u6389\u6b21\u8981\u7ec6\u8282\u3002\u8fd9\u6837\u5305\u88f9\u4f53\u79ef\u5c31\u53d8\u5c0f\u4e86\uff08\u5c3a\u5bf8\u51cf\u534a\uff09\uff0c\u65b9\u4fbf\u540e\u7eed\u7cbe\u7ec6\u5904\u7406\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8fd9\u4e2a\u8fc7\u7a0b\u4f1a\u91cd\u590d\u51e0\u6b21<\/strong>\uff08\u770b\u56fe\u4e2d\u6709\u597d\u51e0\u7ec4<code>Conv<\/code>\u548c<code>Maxpool<\/code>\uff09\uff0c\u6bcf\u7ecf\u8fc7\u4e00\u6b21\uff0c\u5305\u88f9\u5c31\u88ab\u538b\u7f29\u5f97\u66f4\u5c0f(<code>\u5c3a\u5bf8\u4ece448->224->112->56...<\/code>)\uff0c\u4f46\u8d34\u5728\u4e0a\u9762\u7684\u201c\u4fe1\u606f\u6807\u7b7e\u201d\u79cd\u7c7b\u5374\u8d8a\u6765\u8d8a\u591a(<code>\u901a\u9053\u6570\u4ece3->64->192->256...<\/code>)\u3002\u8fd9\u610f\u5473\u7740\u6211\u4eec\u5bf9\u5305\u88f9\u7684\u89c2\u5bdf\u4ece\u201c\u6574\u4f53\u7c97\u770b\u201d\u8fdb\u5165\u4e86\u201c\u5c40\u90e8\u7ec6\u770b\u201d\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>3. \u7cbe\u7ec6\u5206\u62e3 - \u7ec6\u770b (\u540e\u9762\u7684\u5377\u79ef\u5c42)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5305\u88f9\u53d8\u5f97\u5f88\u5c0f\u4e86\uff08\u6bd4\u5982\u5230\u4e86<code>14x14<\/code>\uff0c<code>7x7<\/code>\uff09\uff0c\u73b0\u5728\u5f00\u59cb\u8fdb\u884c\u6781\u5ea6\u7cbe\u7ec6\u7684\u68c0\u67e5\u3002<\/li>\n\n\n\n<li><strong>\u4f8b\u5982\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>Conv 3x3, 1024<\/code>\uff1a\u5de5\u4eba\u62ff\u77403x3\u7684\u5c0f\u653e\u5927\u955c\uff0c\u5728\u6bcf\u4e00\u4e2a\u5c0f\u683c\u5b50\u4e0a\u4ed4\u7ec6\u68c0\u67e5\uff0c\u627e\u51fa1024\u79cd\u6781\u5176\u7ec6\u5fae\u7684\u7279\u5f81\uff08\u6bd4\u5982\u662f\u4e0d\u662f\u6709\u8f6e\u5b50\u3001\u6709\u6ca1\u6709\u73bb\u7483\u3001\u662f\u4e0d\u662f\u6709\u7eb9\u7406\uff09\u3002<strong>\u8fd9\u4e2a\u65f6\u5019\uff0c<code>7x7<\/code>\u7684\u5c3a\u5bf8\u610f\u5473\u7740\u6211\u4eec\u628a\u539f\u59cb\u56fe\u7247\u5212\u5206\u6210\u4e867x7=49\u4e2a\u7f51\u683c\uff0c\u6bcf\u4e2a\u7f51\u683c\u90fd\u8d1f\u8d23\u68c0\u6d4b\u81ea\u5df1\u533a\u57df\u5185\u7684\u7269\u4f53\u3002<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6700\u7ec8\uff0c\u5305\u88f9\u53d8\u6210\u4e86\u4e00\u4e2a\u00a0<code>7x7 x 1024<\/code>\u00a0\u7684\u201c\u4fe1\u606f\u5757\u201d\u3002<\/strong>\u00a0\u4f60\u53ef\u4ee5\u7406\u89e3\u4e3a\uff1a\u4e00\u4e2a7x7\u7684\u7f51\u683c\uff0c\u6bcf\u4e2a\u7f51\u683c\u91cc\u90fd\u67091024\u6761\u5173\u4e8e\u8fd9\u4e2a\u7f51\u683c\u7684\u8be6\u7ec6\u63cf\u8ff0\u4fe1\u606f\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>4. \u51b3\u7b56\u4e2d\u5fc3 - \u5f00\u4f1a\u5f97\u51fa\u7ed3\u8bba (\u5168\u8fde\u63a5\u5c42)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u73b0\u5728\uff0c\u8fd949\u4e2a\u7f51\u683c\u76841024\u6761\u4fe1\u606f\uff08\u603b\u5171\u00a0<code>7*7*1024 = 49,984<\/code>\u00a0\u6761\u4fe1\u606f\uff09\u8981\u4e00\u8d77\u5f00\u4f1a\uff0c\u5546\u91cf\u51fa\u6700\u7ec8\u7ed3\u679c\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u8ba95\u4e07\u6761\u4fe1\u606f\u76f4\u63a5\u4e00\u8d77\u5435\uff0c\u4f1a\u4e71\u5957\uff08\u53c2\u6570\u7206\u70b8\uff09\u3002\u6240\u4ee5\u9700\u8981\u4e00\u4e2a\u9ad8\u6548\u7684\u4f1a\u8bae\u6d41\u7a0b\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u7b2c\u4e00\u573a\u5c0f\u4f1a (FC 256)\uff1a<\/strong>\u00a0\u8ba95\u4e07\u6761\u4fe1\u606f\u5148\u5185\u90e8\u8ba8\u8bba\uff0c\u9009\u4e3e\u51fa<strong>256\u4e2a\u6700\u6709\u4ee3\u8868\u6027\u7684\u201c\u610f\u89c1\u9886\u8896\u201d<\/strong>\uff08\u5373\u964d\u7ef4\u5230256\u4e2a\u503c\uff09\u3002\u8fd9\u4e00\u6b65\u5927\u5927\u51cf\u5c11\u4e86\u6df7\u4e71\u3002<\/li>\n\n\n\n<li><strong>\u7b2c\u4e8c\u573a\u5927\u4f1a (FC 4096)\uff1a<\/strong>\u00a0\u8fd9256\u4e2a\u610f\u89c1\u9886\u8896\u518d\u548c<strong>4096\u4e2a\u201c\u4e13\u5bb6\u8bc4\u59d4\u201d<\/strong>\u00a0\u5f00\u4f1a\uff0c\u8fdb\u884c\u6df1\u5165\u5206\u6790\u548c\u8fa9\u8bba\u3002<\/li>\n\n\n\n<li><strong>\u6700\u7ec8\u88c1\u51b3 (FC 30)\uff1a<\/strong>\u00a0\u6700\u540e\uff0c\u8fd94096\u4e2a\u4e13\u5bb6\u7efc\u5408\u610f\u89c1\uff0c\u6295\u7968\u5f97\u51fa<strong>\u6700\u7ec8\u768430\u4e2a\u7ed3\u8bba<\/strong>\u3002\u8fd930\u4e2a\u7ed3\u8bba\u5c31\u662f\u6574\u4e2a\u7cfb\u7edf\u7684\u8f93\u51fa\uff0c\u5305\u542b\u4e86\u6bcf\u4e2a\u7f51\u683c\u9884\u6d4b\u7684\u7269\u4f53\u7c7b\u522b\u548c\u4f4d\u7f6e\u5750\u6807\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u6574\u4e2a\u56fe\u7247\u63cf\u7ed8\u7684\u8fc7\u7a0b\u5c31\u662f\uff1a<\/p>\n\n\n\n<p><strong>\u539f\u59cb\u56fe\u7247<\/strong>\u2192&nbsp;<strong>\u4e0d\u65ad\u538b\u7f29\u5c3a\u5bf8\u3001\u589e\u52a0\u4fe1\u606f\u6df1\u5ea6\uff08\u5377\u79ef\u6c60\u5316\uff09<\/strong>\u2192&nbsp;<strong>\u5f97\u5230\u6bcf\u4e2a\u7f51\u683c\u7684\u4e30\u5bcc\u7279\u5f81<\/strong>\u2192&nbsp;<strong>\u9ad8\u6548\u5730\u5f00\u4f1a\u8ba8\u8bba\uff08\u5168\u8fde\u63a5\u5c42\uff09<\/strong>\u2192&nbsp;<strong>\u8f93\u51fa\u6700\u7ec8\u9884\u6d4b\u7ed3\u679c\uff0830\u4e2a\u503c\uff09<\/strong><\/p>\n\n\n\n<p><strong>\u4e3a\u4ec0\u4e48\u6700\u540e\u8981\u7528\u5168\u8fde\u63a5\u5c42\uff1f<\/strong><strong>\u56e0\u4e3a\u7269\u4f53\u5728\u54ea\u3001\u662f\u4ec0\u4e48\uff0c\u9700\u8981\u7efc\u5408\u6574\u4e2a\u56fe\u7247\u7684\u6240\u6709\u4fe1\u606f\u6765\u5224\u65ad<\/strong>\u3002\u6bd4\u5982\u5224\u65ad\u4e00\u4e2a\u683c\u5b50\u91cc\u7684\u4e1c\u897f\u662f\u4e0d\u662f\u201c\u8f66\u201d\uff0c\u53ef\u80fd\u9700\u8981\u770b\u5b83\u65c1\u8fb9\u6709\u6ca1\u6709\u201c\u8f6e\u5b50\u201d\u7684\u683c\u5b50\u3002\u5168\u8fde\u63a5\u5c42\u8ba9\u6240\u6709\u7f51\u683c\u7684\u4fe1\u606f\u90fd\u80fd\u76f8\u4e92\u6c9f\u901a\uff0c\u505a\u51fa\u6700\u5168\u5c40\u3001\u6700\u51c6\u786e\u7684\u5224\u65ad\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e0d\u7740\u6025\uff0c\u6211\u662f\u5c0f\u767d\uff0c\u5377\u79ef\u6c60\u5316\u6211\u662f\u7b2c\u4e00\u6b21\u542c\u8bf4\u3002\u5377\u79ef\u548c\u6c60\u5316\u662f\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\uff08CNN\uff09\u4e2d\u4e24\u4e2a\u975e\u5e38\u6838\u5fc3\u7684\u64cd\u4f5c\uff0c\u5b83\u4eec\u5c31\u50cf\u4e00\u4f4d\u201c\u7279\u5f81\u63d0\u53d6\u5e08\u201d\u548c\u4e00\u4f4d\u201c\u6570\u636e\u538b\u7f29\u5e08\u201d\uff0c\u534f\u540c\u5de5\u4f5c\u8ba9\u8ba1\u7b97\u673a\u80fd\u591f\u201c\u770b\u61c2\u201d\u56fe\u50cf\u3002<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfaf \u6253\u4e2a\u6bd4\u65b9\uff1a\u770b\u56fe\u8bf4\u8bdd<\/p>\n<\/blockquote>\n\n\n\n<p>\u60f3\u8c61\u4e00\u4e0b\uff0c\u4f60\u62ff\u5230\u4e00\u5f20\u590d\u6742\u7684\u7167\u7247\uff0c\u9700\u8981\u5411\u522b\u4eba\u63cf\u8ff0\u5b83\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5377\u79ef<\/strong>\u5c31\u50cf\u4f60<strong>\u62ff\u51fa\u653e\u5927\u955c\uff0c\u4ed4\u7ec6\u626b\u63cf\u56fe\u50cf\u7684\u6bcf\u4e00\u4e2a\u5c0f\u533a\u57df<\/strong>\uff0c\u5bfb\u627e\u5e76\u52fe\u52d2\u51fa<strong>\u57fa\u7840\u7684\u7ebf\u6761\u3001\u68f1\u89d2\u3001\u8272\u5757\u548c\u7eb9\u7406<\/strong>\u3002\u6bd4\u5982\uff0c\u201c\u8fd9\u91cc\u6709\u4e00\u6761\u659c\u7ebf\u201d\u3001\u201c\u90a3\u91cc\u6709\u4e2a\u84dd\u8272\u5757\u201d\u3002<\/li>\n\n\n\n<li><strong>\u6c60\u5316<\/strong>\u5c31\u50cf\u4f60<strong>\u770b\u5b8c\u7ec6\u8282\u540e\uff0c\u9000\u540e\u4e00\u6b65\uff0c\u5ffd\u7565\u90a3\u4e9b\u7ec6\u5fae\u7684\u4f4d\u7f6e\u5dee\u5f02\uff0c\u603b\u7ed3\u51fa\u66f4\u5927\u3001\u66f4\u663e\u8457\u7684\u7279\u5f81<\/strong>\u3002\u6bd4\u5982\uff0c\u201c\u4e0d\u7ba1\u8fd9\u6761\u7ebf\u5177\u4f53\u5728\u5de6\u8fb9\u8fd8\u662f\u53f3\u8fb9\u4e00\u70b9\u70b9\uff0c\u603b\u4e4b\u8fd9\u4e2a\u533a\u57df\u6709\u4e00\u4e2a\u660e\u663e\u7684\u5411\u53f3\u7684\u659c\u7ebf\u8d8b\u52bf\u201d\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2728 \u6838\u5fc3\u6982\u5ff5\u901a\u4fd7\u89e3\u8bfb<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol class=\"wp-block-list\">\n<li>\u5377\u79ef\uff1a\u7279\u5f81\u63d0\u53d6\u7684\u201c\u653e\u5927\u955c\u201d<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u5377\u79ef\u64cd\u4f5c\u7684\u6838\u5fc3\u76ee\u7684\u662f<strong>\u4ece\u539f\u59cb\u56fe\u50cf\u4e2d\u63d0\u53d6\u51fa\u6709\u7528\u7684\u7279\u5f81<\/strong>\uff0c\u6bd4\u5982\u8fb9\u7f18\u3001\u89d2\u70b9\u3001\u7eb9\u7406\u7b49\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b83\u662f\u4ec0\u4e48<\/strong>\uff1a\u5377\u79ef\u901a\u8fc7\u4e00\u4e2a\u79f0\u4e3a<strong>\u5377\u79ef\u6838<\/strong>\uff08\u6216\u6ee4\u6ce2\u5668\uff09\u7684\u5c0f\u77e9\u9635\uff08\u6bd4\u59823x3\u62165x5\uff09\uff0c\u5728\u8f93\u5165\u56fe\u50cf\u4e0a<strong>\u6ed1\u52a8<\/strong>\u3002\u5728\u6bcf\u4e2a\u4f4d\u7f6e\uff0c\u5377\u79ef\u6838\u4e0e\u56fe\u50cf\u5bf9\u5e94\u7684\u5c40\u90e8\u533a\u57df\u8fdb\u884c<strong>\u5bf9\u5e94\u5143\u7d20\u76f8\u4e58\u518d\u6c42\u548c<\/strong>\u7684\u8fd0\u7b97\uff0c\u5f97\u5230\u4e00\u4e2a\u6570\u503c\u8f93\u51fa\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u751f\u6210\u7684\u65b0\u77e9\u9635\u79f0\u4e3a<strong>\u7279\u5f81\u56fe<\/strong>\uff0c\u5b83\u8bb0\u5f55\u4e86\u539f\u56fe\u4e2d\u7279\u5b9a\u7279\u5f81\u7684\u51fa\u73b0\u60c5\u51b5\u548c\u4f4d\u7f6e\u3002<\/li>\n\n\n\n<li><strong>\u4e3a\u4ec0\u4e48\u9700\u8981\u5b83<\/strong>\uff1a\u76f4\u63a5\u5904\u7406\u539f\u59cb\u56fe\u50cf\u50cf\u7d20\u6570\u636e\u91cf\u592a\u5927\uff0c\u4e14\u50cf\u7d20\u672c\u8eab\u4e0d\u4ee3\u8868\u9ad8\u7ea7\u8bed\u4e49\u3002\u5377\u79ef\u6838\u901a\u8fc7\u5176\u5185\u90e8\u7684\u6743\u91cd\uff0c\u5145\u5f53\u4e86<strong>\u7279\u5f81\u68c0\u6d4b\u5668<\/strong>\u7684\u89d2\u8272\u3002\u4e0d\u540c\u7684\u5377\u79ef\u6838\u53ef\u4ee5\u68c0\u6d4b\u4e0d\u540c\u7684\u7279\u5f81\uff08\u5982\u8fb9\u7f18\u3001\u9510\u5316\u3001\u6a21\u7cca\uff09\u3002<\/li>\n\n\n\n<li><strong>\u5173\u952e\u7279\u6027<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u5c40\u90e8\u8fde\u63a5<\/strong>\uff1a\u6bcf\u4e2a\u795e\u7ecf\u5143\u53ea\u4e0e\u8f93\u5165\u6570\u636e\u7684\u4e00\u4e2a\u5c40\u90e8\u533a\u57df\u76f8\u8fde\uff0c\u8fd9\u5927\u5927\u51cf\u5c11\u4e86\u53c2\u6570\u6570\u91cf\u3002<\/li>\n\n\n\n<li><strong>\u6743\u503c\u5171\u4eab<\/strong>\uff1a\u540c\u4e00\u4e2a\u5377\u79ef\u6838\u5728\u6574\u4e2a\u8f93\u5165\u6570\u636e\u4e0a\u6ed1\u52a8\u5e76\u4f7f\u7528\u76f8\u540c\u7684\u53c2\u6570\uff0c\u8fd9\u4e0d\u4ec5\u8fdb\u4e00\u6b65\u51cf\u5c11\u4e86\u53c2\u6570\u6570\u91cf\uff0c\u8fd8\u4f7f\u5f97\u7f51\u7edc\u5177\u6709<strong>\u5e73\u79fb\u4e0d\u53d8\u6027<\/strong>\u7684\u96cf\u5f62\u2014\u2014\u65e0\u8bba\u7279\u5f81\u51fa\u73b0\u5728\u56fe\u50cf\u7684\u54ea\u4e2a\u4f4d\u7f6e\uff0c\u90fd\u80fd\u88ab\u76f8\u540c\u7684\u5377\u79ef\u6838\u68c0\u6d4b\u5230\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u6c60\u5316\uff1a\u7279\u5f81\u964d\u7ef4\u7684\u201c\u6458\u8981\u5458\u201d<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u6c60\u5316\u64cd\u4f5c\u901a\u5e38\u7d27\u8ddf\u5728\u5377\u79ef\u5c42\u4e4b\u540e\uff0c\u5176\u4e3b\u8981\u76ee\u7684\u662f<strong>\u5bf9\u5377\u79ef\u63d0\u53d6\u5230\u7684\u7279\u5f81\u8fdb\u884c\u538b\u7f29\u548c\u805a\u5408<\/strong>\uff0c\u4fdd\u7559\u6700\u663e\u8457\u7684\u4fe1\u606f\uff0c\u540c\u65f6\u964d\u4f4e\u6570\u636e\u7ef4\u5ea6\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b83\u662f\u4ec0\u4e48<\/strong>\uff1a\u6c60\u5316\u4e5f\u662f\u5728\u7279\u5f81\u56fe\u4e0a\u7528\u4e00\u4e2a\u7a97\u53e3\uff08\u59822x2\uff09\u6ed1\u52a8\uff0c\u4f46\u64cd\u4f5c\u6bd4\u5377\u79ef\u66f4\u7b80\u5355\uff1a<strong>\u6ca1\u6709\u9700\u8981\u5b66\u4e60\u7684\u53c2\u6570<\/strong>\uff0c\u53ea\u662f\u5bf9\u7a97\u53e3\u5185\u7684\u503c\u8fdb\u884c\u4e00\u4e2a<strong>\u7b80\u5355\u7684\u805a\u5408\u7edf\u8ba1<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u4e3a\u4ec0\u4e48\u9700\u8981\u5b83<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u964d\u4f4e\u8ba1\u7b97\u91cf\u548c\u5185\u5b58\u6d88\u8017<\/strong>\uff1a\u51cf\u5c11\u7279\u5f81\u56fe\u7684\u5c3a\u5bf8\uff0c\u4ece\u800c\u663e\u8457\u51cf\u5c11\u540e\u7eed\u64cd\u4f5c\u7684\u53c2\u6570\u548c\u8ba1\u7b97\u91cf\u3002<\/li>\n\n\n\n<li><strong>\u9632\u6b62\u8fc7\u62df\u5408<\/strong>\uff1a\u901a\u8fc7\u51cf\u5c11\u53c2\u6570\u6570\u91cf\uff0c\u964d\u4f4e\u4e86\u6a21\u578b\u7684\u590d\u6742\u5ea6\uff0c\u6709\u52a9\u4e8e\u63d0\u9ad8\u6cdb\u5316\u80fd\u529b\u3002<\/li>\n\n\n\n<li><strong>\u589e\u5f3a\u5e73\u79fb\u4e0d\u53d8\u6027<\/strong>\uff1a\u6c60\u5316\u80fd\u591f\u5e2e\u52a9\u8f93\u5165\u7684\u8868\u5f81\u8fd1\u4f3c\u4e0d\u53d8\u3002\u5f53\u6211\u4eec\u5bf9\u8f93\u5165\u8fdb\u884c\u5c11\u91cf\u5e73\u79fb\u65f6\uff0c\u7ecf\u8fc7\u6c60\u5316\u51fd\u6570\u540e\u7684\u5927\u591a\u6570\u8f93\u51fa\u5e76\u4e0d\u4f1a\u53d1\u751f\u6539\u53d8\u3002\u5f53\u6211\u4eec\u5173\u5fc3\u67d0\u4e2a\u7279\u5f81\u662f\u5426\u51fa\u73b0\u800c\u4e0d\u5173\u5fc3\u5b83\u51fa\u73b0\u7684\u5177\u4f53\u4f4d\u7f6e\u65f6\uff0c\u8fd9\u4e2a\u6027\u8d28\u975e\u5e38\u6709\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5e38\u89c1\u7c7b\u578b<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u6700\u5927\u6c60\u5316<\/strong>\uff1a\u53d6\u7a97\u53e3\u5185\u7684<strong>\u6700\u5927\u503c<\/strong>\u3002\u8fd9\u80fd\u66f4\u597d\u5730\u4fdd\u7559\u7eb9\u7406\u7b49\u663e\u8457\u7279\u5f81\u3002<\/li>\n\n\n\n<li><strong>\u5e73\u5747\u6c60\u5316<\/strong>\uff1a\u53d6\u7a97\u53e3\u5185\u7684<strong>\u5e73\u5747\u503c<\/strong>\u3002\u8fd9\u80fd\u66f4\u597d\u5730\u4fdd\u7559\u80cc\u666f\u7684\u6574\u4f53\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udcca \u5377\u79ef\u4e0e\u6c60\u5316\u7684\u5bf9\u6bd4<\/p>\n<\/blockquote>\n\n\n\n<p>\u4e3a\u4e86\u8ba9\u4f60\u66f4\u6e05\u6670\u5730\u7406\u89e3\u5b83\u4eec\u7684\u533a\u522b\u548c\u8054\u7cfb\uff0c\u6211\u51c6\u5907\u4e86\u4e00\u4e2a\u8868\u683c\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th><strong>\u5377\u79ef<\/strong><\/th><th><strong>\u6c60\u5316<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>\u6838\u5fc3\u4f5c\u7528<\/strong><\/td><td><strong>\u7279\u5f81\u63d0\u53d6<\/strong>\uff1a\u4ece\u6570\u636e\u4e2d\u68c0\u6d4b\u548c\u62bd\u53d6\u5c40\u90e8\u7279\u5f81\uff08\u5982\u8fb9\u7f18\u3001\u89d2\u70b9\uff09<\/td><td><strong>\u7279\u5f81\u964d\u7ef4\/\u538b\u7f29<\/strong>\uff1a\u51cf\u5c11\u6570\u636e\u5c3a\u5bf8\uff0c\u4fdd\u7559\u4e3b\u8981\u4fe1\u606f\uff0c\u964d\u4f4e\u8ba1\u7b97\u590d\u6742\u5ea6<\/td><\/tr><tr><td><strong>\u64cd\u4f5c\u65b9\u5f0f<\/strong><\/td><td>\u5377\u79ef\u6838\u4e0e\u8f93\u5165\u5c40\u90e8\u533a\u57df\u8fdb\u884c<strong>\u52a0\u6743\u6c42\u548c<\/strong>\uff08\u7ebf\u6027\u8fd0\u7b97\uff09<\/td><td>\u5bf9\u8f93\u5165\u5c40\u90e8\u533a\u57df\u8fdb\u884c<strong>\u805a\u5408\u7edf\u8ba1<\/strong>\uff08\u5982\u53d6\u6700\u5927\u3001\u5e73\u5747\u503c\uff09<\/td><\/tr><tr><td><strong>\u4e3b\u8981\u53c2\u6570<\/strong><\/td><td><strong>\u5377\u79ef\u6838\u5927\u5c0f<\/strong>\u3001<strong>\u6b65\u957f<\/strong>\u3001<strong>\u586b\u5145<\/strong>\u3001<strong>\u5377\u79ef\u6838\u6570\u91cf<\/strong>\uff08\u51b3\u5b9a\u8f93\u51fa\u901a\u9053\u6570\uff09<\/td><td><strong>\u6c60\u5316\u7a97\u53e3\u5927\u5c0f<\/strong>\u3001<strong>\u6b65\u957f<\/strong>\uff08\u901a\u5e38\u7b49\u4e8e\u7a97\u53e3\u5927\u5c0f\u4ee5\u5b9e\u73b0\u4e0d\u91cd\u53e0\uff09<\/td><\/tr><tr><td><strong>\u662f\u5426\u53ef\u5b66\u4e60<\/strong><\/td><td><strong>\u662f<\/strong>\uff08\u5377\u79ef\u6838\u6743\u91cd\u901a\u8fc7\u8bad\u7ec3\u4f18\u5316\uff09<\/td><td><strong>\u5426<\/strong>\uff08\u6ca1\u6709\u53c2\u6570\uff0c\u662f\u56fa\u5b9a\u64cd\u4f5c\uff09<\/td><\/tr><tr><td><strong>\u8f93\u51fa\u7ed3\u679c<\/strong><\/td><td><strong>\u7279\u5f81\u56fe<\/strong>\uff08\u901a\u5e38\u5c3a\u5bf8\u53d8\u5316\uff0c\u901a\u9053\u6570\u53ef\u80fd\u589e\u52a0\uff09<\/td><td><strong>\u964d\u91c7\u6837\u540e\u7684\u7279\u5f81\u56fe<\/strong>\uff08\u5c3a\u5bf8\u51cf\u5c0f\uff0c\u901a\u9053\u6570\u901a\u5e38\u4e0d\u53d8\uff09<\/td><\/tr><tr><td><strong>\u6838\u5fc3\u4ef7\u503c<\/strong><\/td><td>\u901a\u8fc7<strong>\u5c40\u90e8\u8fde\u63a5<\/strong>\u548c<strong>\u6743\u503c\u5171\u4eab<\/strong>\u9ad8\u6548\u63d0\u53d6\u7279\u5f81\uff0c\u662fCNN\u7684\u6838\u5fc3<\/td><td>\u538b\u7f29\u6570\u636e\u3001<strong>\u6269\u5927\u611f\u53d7\u91ce<\/strong>\u3001<strong>\u589e\u5f3a\u6a21\u578b\u6cdb\u5316\u80fd\u529b<\/strong>\u548c<strong>\u5e73\u79fb\u4e0d\u53d8\u6027<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udc8e \u7b80\u5355\u603b\u7ed3<\/p>\n<\/blockquote>\n\n\n\n<p>\u53ef\u4ee5\u628a\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u7406\u89e3\u6210\u4e00\u4e2a<strong>\u591a\u5c42\u7684\u4fe1\u606f\u63d0\u70bc\u5de5\u5382<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5377\u79ef\u5c42<\/strong>\u8d1f\u8d23<strong>\u62bd\u53d6<\/strong>\u539f\u6750\u6599\uff08\u539f\u59cb\u56fe\u50cf\uff09\u4e2d\u7684\u6709\u4ef7\u503c\u6210\u5206\uff08\u7279\u5f81\uff09\u3002<\/li>\n\n\n\n<li><strong>\u6c60\u5316\u5c42<\/strong>\u8d1f\u8d23<strong>\u6d53\u7f29<\/strong>\u8fd9\u4e9b\u63d0\u53d6\u7269\uff0c\u5254\u9664\u5197\u4f59\u548c\u6742\u8d28\uff0c\u4fdd\u7559\u7cbe\u534e\u4ee5\u4fbf\u540e\u7eed\u8fdb\u4e00\u6b65\u52a0\u5de5\u6216\u76f4\u63a5\u4f7f\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5b83\u4eec\u4fe9\u914d\u5408\uff0c\u4f7f\u5f97CNN\u80fd\u591f\u9ad8\u6548\u5730\u4ece\u56fe\u50cf\u4e2d\u5b66\u4e60\u5230\u4ece\u7b80\u5355\u5230\u590d\u6742\u7684\u5c42\u6b21\u5316\u7279\u5f81\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u597d\u4e86\u54b1\u4eec\u7ee7\u7eed<\/p>\n<\/blockquote>\n\n\n\n<p>YOLO-v1\u7684backbone\u7f51\u7edc\u662f\u4eff\u7167GoogLeNet\u642d\u5efa\u7684\uff0c\u4f46\u5e76\u6ca1\u6709\u91c7\u7528Inception\u6a21\u5757\uff0c\u800c\u662f\u4f7f\u7528 1x1 \u548c 3x3 &nbsp;\u5377\u79ef\u5c42\u6765\u5806\u780c\u7684\uff0c\u6240\u4ee5\u7f51\u7edc\u7684\u7ed3\u6784\u662f\u975e\u5e38\u7b80\u5355\u7684\u3002\u57fa\u672c\u4e0a\uff0c\u7167\u846b\u82a6\u753b\u74e2\uff0c\u6211\u4eec\u5c31\u80fd\u642d\u5efa\u51fa\u6574\u4f53\u7684\u7f51\u7edc\u3002<\/p>\n\n\n\n<p>\u5728\u90a3\u4e2a\u5e74\u4ee3\uff0c\u56fe\u50cf\u5206\u7c7b\u4efb\u52a1\u4e2d\uff0c\u7f51\u7edc\u6700\u540e\u4f1a\u5c06\u5377\u79ef\u8f93\u51fa\u7684\u7279\u5f81\u56fe\u62c9\u5e73\uff08flatten\uff09\uff0c\u5f97\u5230\u4e00\u4e2a\u4e00\u7ef4\u5411\u91cf\uff0c\u7136\u540e\u518d\u63a5\u82e5\u5e72\u5168\u8fde\u63a5\u5c42\u505a\u9884\u6d4b\u3002<\/p>\n\n\n\n<p>YOLO-v1\u7ee7\u627f\u4e86\u8fd9\u4e2a\u601d\u60f3\uff0c\u6700\u540e\u7684 7 x 7 x 1024 \uff08\u7ef4\u5ea6\u987a\u5e8f\uff1a H x W x C \uff09\u7684\u7279\u5f81\u56fe\u6210 7 x 7 x 1024 \u5927\u5c0f\u7684\u5411\u91cf\uff0c\u8fd9\u4e2a\u4e00\u7ef4\u5411\u91cf\u518d\u63a5\u4e00\u5c42\u5168\u8fde\u63a5\u5c42\u3002\u4f46\u662f\uff0c\u8fd9\u91cc\u6211\u4eec\u9700\u8981\u6ce8\u610f\u4e00\u70b9\uff0c\u5982\u679c\u53ea\u770b\u56fe\u4e2d\u7684\u7ed3\u6784\uff0c\u662f\u53ea\u6709\u4e00\u4e2a4096\u7684\u5168\u8fde\u63a5\u5c42\uff0c\u6211\u4eec\u4e0d\u59a8\u7b97\u4e00\u4e0b\u8fd9\u91cc\u7684\u53c2\u6570\u91cf\uff1a<img decoding=\"async\" class=\"lazyload\"data-src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_png\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXahQHE3MJxO0Sia9HaSM1RxIQqgW9d9zLSPbkicLmrI5IS9WN5RkhoDibeA\/640?wx_fmt=png&amp;from=appmsg&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=1\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\u56fe\u7247\"><noscript><img decoding=\"async\" src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_png\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXahQHE3MJxO0Sia9HaSM1RxIQqgW9d9zLSPbkicLmrI5IS9WN5RkhoDibeA\/640?wx_fmt=png&amp;from=appmsg&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=1\" alt=\"\u56fe\u7247\"><\/noscript><\/p>\n\n\n\n<p>\u4ec5\u4ec5\u8fd9\u4e00\u5c42\u5168\u8fde\u63a5\uff0c\u53c2\u6570\u7684\u91cf\u7ea7\u5c31\u5df2\u7ecf\u662f8\u4e2a0\u4e86\uff0c\u8fc7\u4e8e\u5de8\u5927\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0c\u539f\u6587\u4f5c\u8005\u5b9e\u9645\u662f\u5148\u7528\u4e86\u4e00\u4e2a256\u7684\u5168\u8fde\u63a5\u5148\u7f13\u4e00\u7f13\uff0c\u7136\u540e\u518d\u8fde\u63a54096\uff0c\u4ece\u800c\u907f\u514d\u53c2\u6570\u7206\u70b8\uff0c\u8fd9\u6837\u6211\u4eec\u518d\u7b97\u4e00\u4e0b\uff1a<img decoding=\"async\" class=\"lazyload\"data-src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_png\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXaFU8a4lLrvBzyR5VHXZ4BsrsaQFAvpDXn1ibIh3txaAsyezLLicHXpf4A\/640?wx_fmt=png&amp;from=appmsg&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=2\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\u56fe\u7247\"><noscript><img decoding=\"async\" src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_png\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXaFU8a4lLrvBzyR5VHXZ4BsrsaQFAvpDXn1ibIh3txaAsyezLLicHXpf4A\/640?wx_fmt=png&amp;from=appmsg&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=2\" alt=\"\u56fe\u7247\"><\/noscript><\/p>\n\n\n\n<p>\u5c11\u4e86\u4e00\u4e2a\u6570\u91cf\u7ea7\uff0c\u4f3c\u4e4e\u4e5f\u6ca1\u6709\u597d\u5230\u54ea\u53bb\u3002\u5f53\u7136\uff0c\u53c2\u6570\u591a\u5e76\u4e0d\u610f\u5473\u7740\u6a21\u578b\u63a8\u7406\u901f\u5ea6\u5c31\u4e00\u5b9a\u4f1a\u5f88\u6162\uff0c\u8fd9\u4e9b\u591a\u7684\u53c2\u6570\u4e3b\u8981\u96c6\u4e2d\u5728\u5168\u8fde\u63a5\u5c42\uff0c\u800c\u5168\u8fde\u63a5\u5c42\u7684\u8fd0\u7b97\u53ef\u4ee5\u53d8\u6362\u6210\u666e\u901a\u7684\u77e9\u9635\u4e58\u6cd5\uff0c\u8fd9\u79cd\u666e\u901a\u8fd0\u7b97\u5bf9GPU\u6765\u8bf4\uff0c\u8fde\u585e\u7259\u7f1d\u7684\u8d44\u683c\u90fd\u6ca1\u6709\u3002\u4f46\u662f\uff0c\u4ece\u8d44\u6e90\u5360\u7528\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u8fc7\u5927\u7684\u53c2\u6570\u91cf\u8fd8\u662f\u4f1a\u8ba9\u7814\u7a76\u8005\u5934\u75bc\u7684\u3002<\/p>\n\n\n\n<p>\u5c3d\u7ba1\u5982\u6b64\uff0cYOLOv1\u8fd8\u662f\u4ee5\u5176\u4f18\u8d8a\u7684\u68c0\u6d4b\u6027\u80fd\u60ca\u8273\u5168\u573a\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u767d\u8bdd\u5570\u55e6\u7248\u672c<\/p>\n<\/blockquote>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u628aYOLO-v1\u7684\u68c0\u6d4b\u8fc7\u7a0b\u60f3\u8c61\u6210\u4e00\u4e2a&nbsp;<strong>\u201c\u5feb\u9012\u5206\u62e3\u4e2d\u5fc3\u201d<\/strong>\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfed \u7b2c\u4e00\u6b65\uff1aBackbone\u7f51\u7edc - \u6d41\u6c34\u7ebf\u5206\u62e3\uff08\u5377\u79ef\u4e0e\u6c60\u5316\uff09<\/p>\n<\/blockquote>\n\n\n\n<p>Backbone\uff08\u4e3b\u5e72\u7f51\u7edc\uff09\u5c31\u50cf\u662f\u5feb\u9012\u5206\u62e3\u4e2d\u5fc3\u7684<strong>\u81ea\u52a8\u5316\u6d41\u6c34\u7ebf<\/strong>\u3002\u5b83\u7684\u4efb\u52a1\u662f\u5bf9\u539f\u59cb\u56fe\u50cf\u8fdb\u884c<strong>\u521d\u6b65\u52a0\u5de5\u548c\u7279\u5f81\u63d0\u53d6<\/strong>\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8f93\u5165\u56fe\u50cf<\/strong>\uff08448x448x3\uff09\uff1a\u5c31\u50cf\u662f\u4e00\u4e2a<strong>\u5de8\u5927\u7684\u3001\u672a\u7ecf\u5206\u62e3\u7684\u5feb\u9012\u5305\u88f9\u5806<\/strong>\uff0c\u91cc\u9762\u5305\u542b\u4e86\u5404\u79cd\u4fe1\u606f\uff08\u989c\u8272\u3001\u7eb9\u7406\u3001\u5f62\u72b6\u7b49\uff09\u3002<\/li>\n\n\n\n<li><strong>\u5377\u79ef\u5c42 (Conv)<\/strong>\uff1a\u5c31\u50cf\u662f\u4e00\u7ec4<strong>\u4e13\u4e1a\u7684\u5206\u62e3\u5de5\u4eba<\/strong>\uff0c\u4ed6\u4eec\u62ff\u7740\u7279\u5b9a\u5927\u5c0f\u7684\u6a21\u677f\uff08<strong>\u5377\u79ef\u6838<\/strong>\uff0c\u59823x3, 1x1\uff09\u5728\u5305\u88f9\u5806\u4e0a\u626b\u63cf\uff0c<strong>\u63d0\u53d6\u51fa\u6709\u7528\u7684\u7279\u5f81<\/strong>\u3002\u6709\u7684\u5de5\u4eba\u4e13\u95e8\u8bc6\u522b\u8fb9\u7f18\uff08\u50cf\u662f\u5305\u88f9\u7684\u68f1\u89d2\uff09\uff0c\u6709\u7684\u4e13\u95e8\u8bc6\u522b\u7eb9\u7406\uff08\u50cf\u662f\u5305\u88f9\u7684\u8868\u9762\u56fe\u6848\uff09\u3002\u8fd9\u4e9b\u5de5\u4eba\u56e2\u961f\uff08<strong>\u6ee4\u6ce2\u5668<\/strong>\uff09\u8d8a\u591a\uff0c\u80fd\u63d0\u53d6\u7684\u7279\u5f81\u79cd\u7c7b\u5c31\u8d8a\u4e30\u5bcc\u3002<\/li>\n\n\n\n<li><strong>\u6c60\u5316\u5c42 (Pooling)<\/strong>\uff1a\u5c31\u50cf\u4e00\u4e2a<strong>\u538b\u7f29\u6253\u5305\u673a<\/strong>\u3002\u5b83\u628a\u5de5\u4eba\u63d0\u53d6\u5230\u7684\u7279\u5f81\u56fe\u8fdb\u884c\u538b\u7f29\uff08\u6bd4\u5982\u4ece224x224\u538b\u7f29\u5230112x112\uff09\uff0c<strong>\u53ea\u4fdd\u7559\u6700\u663e\u8457\u3001\u6700\u91cd\u8981\u7684\u4fe1\u606f<\/strong>\uff0c\u6254\u6389\u4e00\u4e9b\u6b21\u8981\u7684\u7ec6\u8282\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u51cf\u5c11\u6570\u636e\u91cf\uff0c\u8ba9\u540e\u7eed\u5904\u7406\u66f4\u9ad8\u6548\uff0c\u5e76\u4e14\u80fd\u8ba9\u7f51\u7edc\u66f4\u5173\u6ce8\u4e8e\u90a3\u4e9b\u6700\u660e\u663e\u7684\u7279\u5f81\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u7ecf\u8fc7\u8fd9\u4e00\u7cfb\u5217\u201c\u5de5\u4eba\u201d\u548c\u201c\u6253\u5305\u673a\u201d\u7684\u4ea4\u66ff\u5de5\u4f5c\uff08\u5377\u79ef\u548c\u6c60\u5316\u5c42\u4ea4\u66ff\uff09\uff0c\u539f\u59cb\u7684\u201c\u5305\u88f9\u5806\u201d\u88ab\u52a0\u5de5\u6210\u4e86\u4e00\u4e2a\u975e\u5e38\u6d53\u7f29\u3001\u4fe1\u606f\u5bc6\u5ea6\u6781\u9ad8\u7684&nbsp;<strong>\u201c\u7279\u5f81\u5305\u88f9\u201d<\/strong>&nbsp;\uff1a\u5c3a\u5bf8\u4e3a&nbsp;<code>7x7<\/code>\uff0c\u4f46\u6709&nbsp;<code>1024<\/code>&nbsp;\u4e2a\u901a\u9053\uff08<code>7x7x1024<\/code>\uff09\u3002\u4f60\u53ef\u4ee5\u628a\u5b83\u60f3\u8c61\u6210\u4e00\u4e2a&nbsp;<code>7x7<\/code>&nbsp;\u7684\u683c\u5b50\u94fa\uff0c\u6bcf\u4e2a\u5c0f\u683c\u5b50\u91cc\u90fd\u585e\u4e861024\u79cd\u4e0d\u540c\u7684\u7279\u5f81\u4fe1\u606f\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\uddfa\ufe0f \u7b2c\u4e8c\u6b65\uff1a\u7406\u89e3 7x7x1024 \u7684\u7279\u5f81\u56fe<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u4e2a&nbsp;<code>7x7x1024<\/code>&nbsp;\u7684\u7279\u5f81\u56fe\uff0c\u662f\u7406\u89e3\u4e00\u5207\u7684\u5173\u952e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>7x7<\/strong>\uff1a\u610f\u5473\u7740\u539f\u59cb\u56fe\u50cf\u88ab\u5212\u5206\u6210\u4e86\u00a0<strong>7x7=49\u4e2a\u7f51\u683c\uff08grid cells\uff09<\/strong>\u3002\u6bcf\u4e2a\u7f51\u683c\u8d1f\u8d23\u9884\u6d4b\u5176\u5185\u90e8\u53ef\u80fd\u5b58\u5728\u7684\u7269\u4f53\u3002<\/li>\n\n\n\n<li><strong>1024<\/strong>\uff1a\u6bcf\u4e2a\u7f51\u683c\u90fd\u5305\u542b\u4e86\u00a0<strong>1024 \u79cd\u4e0d\u540c\u7684\u7279\u5f81\u4fe1\u606f<\/strong>\uff08\u8fd9\u4e9b\u4fe1\u606f\u662f\u524d\u9762\u7684\u5377\u79ef\u5c42\u63d0\u53d6\u51fa\u6765\u7684\uff09\uff0c\u8fd9\u4e9b\u7279\u5f81\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u8fd9\u4e2a\u7f51\u683c\u91cc\u6709\u4ec0\u4e48\u7269\u4f53\u3001\u4f4d\u7f6e\u5728\u54ea\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u5c31\u597d\u6bd4\u4e00\u5f20<strong>\u5730\u56fe\u88ab\u5212\u5206\u6210\u4e867x7\u7684\u7f51\u683c<\/strong>\uff0c\u800c\u6bcf\u4e2a\u7f51\u683c\u90fd\u9644\u5e26\u7740\u4e00\u672c\u975e\u5e38\u8be6\u7ec6\u7684\u30011024\u9875\u7684<strong>\u7279\u5f81\u624b\u518c<\/strong>\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udce6 \u7b2c\u4e09\u6b65\uff1aFlatten (\u62c9\u5e73) - \u628a\u7acb\u4f53\u5730\u56fe\u201c\u94fa\u5e73\u201d<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728\u8fdb\u5165\u6700\u7ec8\u51b3\u7b56\u4e4b\u524d\uff0c\u9700\u8981\u5c06\u8fd9\u4e2a\u4e09\u7ef4\u7684\u201c\u5730\u56fe\u624b\u518c\u201d\uff08<code>7x7x1024<\/code>\uff09<strong>\u8f6c\u6362\u6210\u4e00\u4e2a\u683c\u5f0f\uff0c\u4ee5\u4fbf\u540e\u7eed\u7684\u201c\u5168\u8fde\u63a5\u5c42\u201d\u8fdb\u884c\u5904\u7406<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Flatten\u64cd\u4f5c<\/strong>\uff1a\u5c31\u662f\u5c06\u8fd9\u4e2a\u4e09\u7ef4\u7ed3\u6784\u00a0<strong>\u201c\u62c9\u5e73\u201d\u6210\u4e00\u4e2a\u4e00\u7ef4\u7684\u957f\u6761\u6e05\u5355<\/strong>\u3002\n<ul class=\"wp-block-list\">\n<li>\u60f3\u8c61\u4e00\u4e0b\uff0c\u4f60\u628a\u8fd949\u4e2a\u7f51\u683c\uff087x7\uff09\u6bcf\u4e2a\u7f51\u683c\u76841024\u6761\u7279\u5f81\u4fe1\u606f\uff0c<strong>\u4ece\u5934\u5230\u5c3e\u3001\u4e00\u4e1d\u4e0d\u82df\u5730\u6284\u5199\u5728\u4e00\u5f20\u6781\u957f\u7684\u7eb8\u6761\u4e0a<\/strong>\u3002<\/li>\n\n\n\n<li>\u8fd9\u4e2a\u7eb8\u6761\u7684\u957f\u5ea6\u5c31\u662f\u00a0<code>7 * 7 * 1024 = 49,984<\/code>\u00a0\u4e2a\u6570\u5b57\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u5c31\u662fFlatten\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>\u4e3a\u4ec0\u4e48\u8981\u8fd9\u4e48\u505a\uff1f<\/strong>\u56e0\u4e3a\u540e\u9762\u7684<strong>\u5168\u8fde\u63a5\u5c42<\/strong>\u4f20\u7edf\u4e0a\u671f\u671b\u63a5\u6536\u4e00\u7ef4\u7684\u5411\u91cf\u8f93\u5165\uff0c\u800c\u4e0d\u662f\u4e09\u7ef4\u7684\u5757\u72b6\u6570\u636e\u3002\u8fd9\u662f\u4e00\u79cd\u5386\u53f2\u9057\u7559\u7684\u8bbe\u8ba1\u4e60\u60ef\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\udde0 \u7b2c\u56db\u6b65\uff1a\u5168\u8fde\u63a5\u5c42 - \u6700\u7ec8\u51b3\u7b56\u5927\u4f1a<\/p>\n<\/blockquote>\n\n\n\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u6709\u4e86\u8fd9\u5f20\u8bb0\u5f55\u4e86\u6240\u6709\u7f51\u683c\u6240\u6709\u7279\u5f81\u7684\u201c\u957f\u7eb8\u6761\u201d\uff08\u4e00\u7ef4\u5411\u91cf\uff09\u3002\u5168\u8fde\u63a5\u5c42\u5c31\u50cf\u662f\u516c\u53f8\u7684<strong>\u9ad8\u5c42\u51b3\u7b56\u4f1a\u8bae<\/strong>\uff0c\u5b83\u7684\u4efb\u52a1\u662f<strong>\u5206\u6790\u8fd9\u4efd\u6e05\u5355\uff0c\u5e76\u505a\u51fa\u6700\u7ec8\u5224\u65ad<\/strong>\uff1a\u6bcf\u4e2a\u7f51\u683c\u91cc\u6709\u6ca1\u6709\u7269\u4f53\uff1f\u662f\u4ec0\u4e48\u7269\u4f53\uff1f\u4f4d\u7f6e\u5728\u54ea\uff1f<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5168\u8fde\u63a5\u5c42\u7684\u4f5c\u7528<\/strong>\uff1a\u7eb8\u6761\u4e0a\u7684<strong>\u6bcf\u4e00\u4e2a\u4fe1\u606f<\/strong>\uff08\u90a349,984\u4e2a\u6570\u5b57\u4e2d\u7684\u6bcf\u4e00\u4e2a\uff09\u90fd\u53ef\u4ee5\u548c<strong>\u6700\u7ec8\u51b3\u7b56\u7684\u6bcf\u4e00\u4e2a\u56e0\u7d20<\/strong>\uff08\u6bd4\u5982\u201c\u662f\u732b\u7684\u6982\u7387\u201d\u3001\u201c\u6846\u7684\u5bbd\u5ea6\u201d\u7b49\uff09\u8fdb\u884c\u4ea4\u4e92\u548c\u52a0\u6743\u8ba1\u7b97\u3002\u8fd9\u5141\u8bb8\u7f51\u7edc\u7efc\u5408\u5168\u5c40\u4fe1\u606f\u6765\u505a\u5224\u65ad\u3002<\/li>\n\n\n\n<li><strong>\u53c2\u6570\u91cf\u7684\u4f8b\u5b50<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u7b2c\u4e00\u4e2a\u5168\u8fde\u63a5\u5c42\u67094096\u4e2a\u795e\u7ecf\u5143\uff0c\u90a3\u4e48\u8fde\u63a5\u8fd949,984\u4e2a\u8f93\u5165\u548c4096\u4e2a\u8f93\u51fa\uff0c\u5c31\u9700\u8981\u00a0<code>49,984 * 4096 \u2248 2.04\u4ebf<\/code>\u00a0\u4e2a\u8fde\u63a5\u6743\u91cd\uff08\u53c2\u6570\uff09\u3002\u8fd9\u5c31\u662f\u4f60\u63d0\u5230\u7684\u201c\u53c2\u6570\u91cf\u5de8\u5927\u201d\u3002<\/li>\n\n\n\n<li>\u4e3a\u4e86\u7f13\u89e3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f5c\u8005\u5728\u5b9e\u9645\u8bbe\u8ba1\u4e2d<strong>\u52a0\u5165\u4e86\u4e00\u4e2a\u4e2d\u95f4\u7684256\u7ef4\u7684\u5168\u8fde\u63a5\u5c42<\/strong>\uff08<code>49,984 -> 256 -> 4096<\/code>\uff09\uff0c\u8fd9\u6837\u53c2\u6570\u91cf\u4f1a\u51cf\u5c11\u4e0d\u5c11\uff0c\u4f46\u4f9d\u7136\u5e9e\u5927\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u7ecf\u8fc7\u5168\u8fde\u63a5\u5c42\u7684\u5206\u6790\u548c\u8ba1\u7b97\uff0c\u7f51\u7edc\u6700\u7ec8\u4f1a\u8f93\u51fa\u4e00\u4e2a&nbsp;<code>7x7x30<\/code>&nbsp;\u7684\u5f20\u91cf\uff0c\u8fd949\u4e2a\u7f51\u683c\u7684\u9884\u6d4b\u7ed3\u679c\uff08\u6bcf\u4e2a\u7f51\u683c\u9884\u6d4b2\u4e2a\u8fb9\u754c\u6846\u548c20\u4e2a\u7c7b\u522b\u6982\u7387\uff09\u5c31\u90fd\u5728\u91cc\u9762\u4e86\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udf1f \u603b\u7ed3\u4e0e\u7c7b\u6bd4\u56de\u987e<\/p>\n<\/blockquote>\n\n\n\n<p>\u7b80\u5355\u603b\u7ed3\u4e00\u4e0b\u8fd9\u4e2a\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7279\u5f81\u63d0\u53d6 (Backbone)<\/strong>\uff1a\u50cf<strong>\u5206\u62e3\u6d41\u6c34\u7ebf<\/strong>\uff0c\u9010\u6b65\u63d0\u53d6\u5e76\u6d53\u7f29\u56fe\u50cf\u7279\u5f81\uff0c\u8f93\u51fa\u00a0<code>7x7x1024<\/code>\u00a0\u7684\u201c\u7279\u5f81\u5757\u201d\u3002<\/li>\n\n\n\n<li><strong>Flatten (\u62c9\u5e73)<\/strong>\uff1a\u50cf\u628a<strong>\u7acb\u4f53\u5730\u56fe\u94fa\u5e73<\/strong>\u6210\u4e00\u5f20\u957f\u957f\u7684\u6e05\u5355\uff0c\u5c06\u4e09\u7ef4\u7279\u5f81\u5757\u8f6c\u5316\u4e3a\u4e00\u7ef4\u5411\u91cf\uff08<code>49,984\u7ef4<\/code>\uff09\u3002<\/li>\n\n\n\n<li><strong>\u5168\u8fde\u63a5\u5c42<\/strong>\uff1a\u50cf<strong>\u9ad8\u5c42\u51b3\u7b56\u4f1a\u8bae<\/strong>\uff0c\u5206\u6790\u957f\u6e05\u5355\u4e0a\u7684\u6240\u6709\u4fe1\u606f\uff0c\u7efc\u5408\u5224\u65ad\u6bcf\u4e2a\u7f51\u683c\u7684\u7269\u4f53\u7c7b\u522b\u548c\u4f4d\u7f6e\uff0c\u6700\u7ec8\u8f93\u51fa\u68c0\u6d4b\u7ed3\u679c\u3002<\/li>\n<\/ol>\n\n\n\n<p>YOLO-v1\u4e4b\u540e\u7684\u7248\u672c\u4e5f\u770b\u5230\u4e86\u5168\u8fde\u63a5\u5c42\u53c2\u6570\u8fc7\u591a\u7684\u95ee\u9898\uff0c\u6240\u4ee5\u5728\u65b0\u8bbe\u8ba1\u4e2d\uff08\u5982YOLOv2\u53ca\u4e4b\u540e\uff09\u666e\u904d<strong>\u629b\u5f03\u4e86\u5168\u8fde\u63a5\u5c42<\/strong>\uff0c\u91c7\u7528\u4e86\u5176\u4ed6\u66f4\u9ad8\u6548\u7684\u6280\u672f\uff08\u5982\u5168\u5377\u79ef\u7f51\u7edc\uff09\uff0c\u8fd9\u4f7f\u5f97\u6a21\u578b\u66f4\u8f7b\u91cf\u3001\u66f4\u5feb\uff0c\u5e76\u4e14\u80fd\u9002\u5e94\u4e0d\u540c\u5c3a\u5bf8\u7684\u8f93\u5165\u56fe\u50cf\u3002<img decoding=\"async\" class=\"lazyload\"data-src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_jpg\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXaF0nMRF6J1HPdj9hLMeb22g2QdbexoiaFOZvcvL99SlC8z8ibVv1IqUqw\/640?wx_fmt=jpeg&amp;from=appmsg&amp;watermark=1&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=3\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\u56fe\u7247\"><noscript><img decoding=\"async\" src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_jpg\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXaF0nMRF6J1HPdj9hLMeb22g2QdbexoiaFOZvcvL99SlC8z8ibVv1IqUqw\/640?wx_fmt=jpeg&amp;from=appmsg&amp;watermark=1&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=3\" alt=\"\u56fe\u7247\"><\/noscript><\/p>\n\n\n\n<p>\u4e8b\u5b9e\u4e0a\uff0cYOLOv1\u672c\u8eab\u6700\u5927\u7684\u5f0a\u7aef\u5c31\u5728\u4e8e\u201cflatten\u201d\u8fd9\u79cd\u65b9\u5f0f\u672c\u8eab\u3002<\/p>\n\n\n\n<p>\u57fa\u672c\u4e0a\uff0c\u5bf9\u4e8e\u201cflatten\u65b9\u5f0f\u4f1a\u7834\u574f\u7279\u5f81\u7684\u7a7a\u95f4\u7ed3\u6784\u4fe1\u606f\u201d\u7684\u8fd9\u4e00\u89c2\u70b9\u5df2\u7ecf\u6210\u4e3a\u4e1a\u754c\u5171\u8bc6\u3002\u73b0\u5728\u51e0\u4e4e\u770b\u4e0d\u5230\u8fd8\u6709\u54ea\u4e2aone-stage\u68c0\u6d4b\u6a21\u578b\u8fd8\u4f1a\u7528\u5168\u8fde\u63a5\u5c42\u6765\u505a\u68c0\u6d4b\u4e86\u3002<\/p>\n\n\n\n<p>\u53e6\u5916\uff0c\u6211\u4eec\u6ce8\u610f\u5230\uff0cYOLOv1\u4e2d\u5e76\u6ca1\u6709\u4f7f\u7528BatchNormalization\uff08BN\uff09\uff0c\u8fd9\u662f\u56e0\u4e3a\u5728\u90a3\u4e2a\u65f6\u5019\uff0cBN\u8fd8\u6ca1\u6709\u5174\u8d77\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u63a5\u7740\u6765<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\uddfa\ufe0f 1. \u4e3a\u4ec0\u4e48\u8bf4\u201cFlatten\u7834\u574f\u7a7a\u95f4\u7ed3\u6784\u201d\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u60f3\u8c61\u4e00\u4e0b\uff0cYOLOv1\u7684Backbone\uff08\u4e3b\u5e72\u7f51\u7edc\uff09\u5c31\u50cf\u4e00\u4f4d<strong>\u7ec6\u5fc3\u52d8\u5bdf\u56fe\u50cf\u7684\u201c\u4fa6\u63a2\u201d<\/strong>\u3002\u5b83\u901a\u8fc7\u5377\u79ef\u548c\u6c60\u5316\u5c42\uff0c\u5c06\u539f\u59cb\u7684\u8f93\u5165\u56fe\u50cf\uff08\u6bd4\u5982448x448\u50cf\u7d20\uff09<strong>\u6d53\u7f29<\/strong>\u6210\u4e86\u4e00\u5f20\u66f4\u6709\u4fe1\u606f\u91cf\u7684\u201c<strong>\u7279\u5f81\u5730\u56fe<\/strong>\u201d\u3002\u8fd9\u5f20\u5730\u56fe\u7684\u5c3a\u5bf8\u662f7x7\uff0c\u4f46\u6bcf\u4e2a\u5c0f\u683c\u5b50\u91cc\uff08\u6211\u4eec\u79f0\u4e4b\u4e3a\u201c\u7f51\u683c\u201d\uff09\u5374\u5b58\u50a8\u4e861024\u6761\u4e0d\u540c\u7684\u7279\u5f81\u4fe1\u606f\uff08\u901a\u9053\u6570\uff09\uff0c\u76f8\u5f53\u4e8e\u6bcf\u4e2a\u7f51\u683c\u90fd\u6709\u4e00\u672c\u539a\u539a\u7684\u3001\u8bb0\u5f55\u4e861024\u6761\u7279\u5f81\u7684\u201c\u6863\u6848\u201d\u3002<\/p>\n\n\n\n<p>\u73b0\u5728\uff0c\u4e3a\u4e86\u8fde\u63a5\u4f20\u7edf\u7684\u5168\u8fde\u63a5\u5c42\u505a\u9884\u6d4b\uff0c\u9700\u8981\u5c06\u8fd9\u5f20<strong>\u4e09\u7ef4\u7684<\/strong>\uff087\uff08\u9ad8\uff09x 7\uff08\u5bbd\uff09x 1024\uff08\u901a\u9053\uff09\uff09\u201c\u7279\u5f81\u5730\u56fe\u201d<strong>\u62c9\u5e73\uff08Flatten\uff09\u6210\u4e00\u4e2a\u4e00\u7ef4\u7684<\/strong>\u957f\u5411\u91cf\uff08\u5c31\u50cf\u628a\u4e00\u672c\u4e66\u7684\u4e66\u9875\u5168\u90e8\u6495\u4e0b\u6765\uff0c\u6309\u987a\u5e8f\u6392\u6210\u4e00\u6761\u957f\u957f\u7684\u7eb8\u6761\uff09\u3002<\/p>\n\n\n\n<p><strong>\u8fd9\u6837\u505a\u7684\u4e3b\u8981\u95ee\u9898\u5728\u4e8e\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7a7a\u95f4\u5173\u7cfb\u4e22\u5931<\/strong>\uff1a\u5728\u539f\u6765\u7684\u201c\u7279\u5f81\u5730\u56fe\u201d\u4e0a\uff0c\u6bcf\u4e2a\u7f51\u683c\u7684<strong>\u4f4d\u7f6e\u5173\u7cfb<\/strong>\uff08\u4e0a\u4e0b\u5de6\u53f3\u3001\u4e2d\u5fc3\u6216\u8fb9\u7f18\uff09\u662f\u975e\u5e38\u660e\u786e\u4e14\u91cd\u8981\u7684\uff0c\u8fd9\u76f4\u63a5\u5173\u7cfb\u5230\u7269\u4f53\u5728\u56fe\u50cf\u4e2d\u7684\u5b9e\u9645\u4f4d\u7f6e\u3002Flatten\u64cd\u4f5c<strong>\u7834\u574f\u4e86\u8fd9\u4e2a\u4e8c\u7ef4\u7684\u7a7a\u95f4\u7ed3\u6784<\/strong>\uff0c\u5168\u8fde\u63a5\u5c42\u5728\u5904\u7406\u8fd9\u4e2a\u4e00\u7ef4\u5411\u91cf\u65f6\uff0c\u5f88\u96be\u518d\u6709\u6548\u5229\u7528\u8fd9\u4e9b\u4f4d\u7f6e\u4fe1\u606f\u3002<\/li>\n\n\n\n<li><strong>\u53c2\u6570\u91cf\u5de8\u5927<\/strong>\uff1a\u5982\u4f60\u4e4b\u524d\u6240\u77e5\uff0c\u62c9\u5e73\u540e\u7684\u5411\u91cf\u7ef4\u5ea6\u5f88\u9ad8\uff087<em>7<\/em>1024=49,984\u7ef4\uff09\uff0c\u76f4\u63a5\u8fde\u63a5\u5927\u5c3a\u5bf8\u7684\u5168\u8fde\u63a5\u5c42\u4f1a\u5bfc\u81f4<strong>\u53c2\u6570\u91cf\u7684\u6025\u5267\u81a8\u80c0<\/strong>\uff0c\u589e\u52a0\u4e86\u8ba1\u7b97\u91cf\u548c\u8fc7\u62df\u5408\u7684\u98ce\u9669\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6b63\u56e0\u4e3a\u8fd9\u4e9b\u5f0a\u7aef\uff0c\u540e\u6765\u7684YOLO\u7248\u672c\uff08\u5982v2\u3001v3\u7b49\uff09\u53ca\u5927\u591a\u6570\u5355\u9636\u6bb5(one-stage)\u68c0\u6d4b\u6a21\u578b\u90fd<strong>\u629b\u5f03\u4e86\u8fd9\u79cd\u201cFlatten + \u5168\u8fde\u63a5\u5c42\u201d\u7684\u8bbe\u8ba1<\/strong>\uff0c\u8f6c\u800c\u91c7\u7528<strong>\u5168\u5377\u79ef\u7f51\u7edc\uff08FCN\uff09<\/strong>&nbsp;\u7684\u7ed3\u6784\uff0c\u76f4\u63a5\u5728\u7279\u5f81\u56fe\u4e0a\u8fdb\u884c\u9884\u6d4b\uff0c\u5b8c\u7f8e\u4fdd\u7559\u4e86\u7a7a\u95f4\u7ed3\u6784\u4fe1\u606f\uff0c\u4e5f\u66f4\u52a0\u9ad8\u6548\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2696\ufe0f 2. \u4e3a\u4ec0\u4e48YOLOv1\u6ca1\u6709\u4f7f\u7528BatchNormalization\uff08BN\uff09\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u4e3b\u8981\u662f\u4e00\u4e2a<strong>\u6280\u672f\u53d1\u5c55\u65f6\u5e8f<\/strong>\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>BN\u6280\u672f\u51fa\u73b0\u7a0d\u665a<\/strong>\uff1aYOLOv1\u8bba\u6587\u53d1\u8868\u4e8e2015\u5e74\u3002\u800cBatchNormalization\uff08\u6279\u91cf\u5f52\u4e00\u5316\uff09\u8fd9\u7bc7\u5f00\u521b\u6027\u7684\u8bba\u6587\u7531Sergey Ioffe\u548cChristian Szegedy\u57282015\u5e74\u624d\u63d0\u51fa\uff0c\u5e76\u9010\u6e10\u88ab\u5e7f\u6cdb\u8ba4\u53ef\u548c\u91c7\u7528\u3002\u5728YOLOv1\u8bbe\u8ba1\u548c\u53d1\u8868\u7684\u65f6\u671f\uff0cBN\u8fd8\u6ca1\u6709\u6210\u4e3a\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u5c24\u5176\u662f\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u4e2d\u7684<strong>\u6807\u51c6\u914d\u7f6e<\/strong>\u3002<\/li>\n\n\n\n<li><strong>BN\u7684\u597d\u5904\u540e\u6765\u624d\u51f8\u663e<\/strong>\uff1aBN\u5c42\u901a\u8fc7\u89c4\u8303\u5316\u6bcf\u4e00\u5c42\u7684\u8f93\u5165\uff0c\u53ef\u4ee5<strong>\u52a0\u901f\u6a21\u578b\u6536\u655b<\/strong>\u3001<strong>\u5141\u8bb8\u4f7f\u7528\u66f4\u5927\u7684\u5b66\u4e60\u7387<\/strong>\uff0c\u5e76\u6709\u4e00\u5b9a\u7684<strong>\u6b63\u5219\u5316\u6548\u679c<\/strong>\uff08\u51cf\u5c11\u8fc7\u62df\u5408\uff09\u3002\u4f46\u8fd9\u4e9b\u597d\u5904\u662f\u5728\u5176\u88ab\u63d0\u51fa\u540e\uff0c\u7ecf\u8fc7\u5927\u91cf\u5b9e\u8df5\u624d\u5f97\u5230\u5145\u5206\u9a8c\u8bc1\u7684\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u56e0\u6b64\uff0cYOLOv1\u7684\u4f5c\u8005\u5728\u5f53\u65f6\u6ca1\u6709\u4f7f\u7528BN\u5c42\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5b83<strong>\u8fd8\u6ca1\u6709\u6210\u4e3a\u90a3\u4e2a\u65f6\u5019\u7684\u5e38\u89c1\u505a\u6cd5<\/strong>\u3002\u5728YOLOv1\u4e4b\u540e\u7684\u7248\u672c\uff08\u5982YOLOv2\uff09\u4e2d\uff0cBN\u5c42\u5c31<strong>\u88ab\u7acb\u523b\u5f15\u5165<\/strong>\u5e76\u8bc1\u660e\u4e86\u5176\u6709\u6548\u6027\uff0c\u4e3a\u6a21\u578b\u6027\u80fd\u5e26\u6765\u4e86\u663e\u8457\u63d0\u5347\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udcca \u6838\u5fc3\u6982\u5ff5\u5bf9\u6bd4<\/p>\n<\/blockquote>\n\n\n\n<p>\u4e3a\u4e86\u8ba9\u4f60\u66f4\u6e05\u6670\u5730\u7406\u89e3\u5b83\u4eec\u7684\u533a\u522b\u548c\u80cc\u666f\uff0c\u6211\u51c6\u5907\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u8868\u683c\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th><strong>Flatten + \u5168\u8fde\u63a5\u5c42 (YOLOv1\u65b9\u5f0f)<\/strong><\/th><th><strong>\u5168\u5377\u79ef\u7f51\u7edc (FCN, \u540e\u671fYOLO\u7b49\u65b9\u5f0f)<\/strong><\/th><th><strong>BatchNormalization (BN)<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>\u6838\u5fc3\u4f5c\u7528<\/strong><\/td><td>\u5c06\u5377\u79ef\u63d0\u53d6\u7684<strong>\u7a7a\u95f4\u7279\u5f81<\/strong>\u8f6c\u6362\u6210\u4e00\u7ef4\u5411\u91cf\uff0c\u4ee5\u4fbf\u7528\u5168\u8fde\u63a5\u5c42\u8fdb\u884c\u9884\u6d4b<\/td><td><strong>\u76f4\u63a5\u5728\u7279\u5f81\u56fe\u4e0a\u8fdb\u884c\u9884\u6d4b<\/strong>\uff0c\u4fdd\u6301\u7a7a\u95f4\u7ed3\u6784<\/td><td><strong>\u89c4\u8303\u5316<\/strong>\u7f51\u7edc\u4e2d\u95f4\u5c42\u7684\u8f93\u5165\uff0c\u52a0\u901f\u8bad\u7ec3\u5e76\u63d0\u5347\u7a33\u5b9a\u6027<\/td><\/tr><tr><td><strong>\u4e3b\u8981\u95ee\u9898<\/strong><\/td><td><strong>\u7834\u574f\u7a7a\u95f4\u7ed3\u6784<\/strong>\uff0c<strong>\u53c2\u6570\u91cf\u5de8\u5927<\/strong>\uff0c\u4e0d\u591f\u7075\u6d3b<\/td><td>\u4fdd\u7559\u7a7a\u95f4\u4fe1\u606f\uff0c\u53c2\u6570\u66f4\u9ad8\u6548\uff0c\u80fd\u9002\u5e94\u4e0d\u540c\u8f93\u5165\u5c3a\u5bf8<\/td><td>\u5728YOLOv1\u65f6\u4ee3<strong>\u5c1a\u672a\u5174\u8d77\u548c\u666e\u53ca<\/strong><\/td><\/tr><tr><td><strong>\u73b0\u72b6<\/strong><\/td><td>\u5728\u76ee\u6807\u68c0\u6d4b\u4e2d<strong>\u5df2\u57fa\u672c\u88ab\u5f03\u7528<\/strong><\/td><td>\u5f53\u524d<strong>\u4e3b\u6d41\u7684\u67b6\u6784\u8bbe\u8ba1<\/strong><\/td><td>\u73b0\u4ee3\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u4e2d<strong>\u51e0\u4e4e\u4e0d\u53ef\u6216\u7f3a\u7684\u6807\u51c6\u7ec4\u4ef6<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udc8e \u7b80\u5355\u603b\u7ed3<\/p>\n<\/blockquote>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Flatten\u95ee\u9898<\/strong>\uff1a\u597d\u6bd4\u628a\u4e00\u5f20<strong>\u57ce\u5e02\u89c4\u5212\u5730\u56fe<\/strong>\uff08\u5177\u6709\u660e\u786e\u533a\u57df\u548c\u4f4d\u7f6e\u5173\u7cfb\uff09\u526a\u788e\uff0c\u518d\u6309\u56fa\u5b9a\u987a\u5e8f\u7c98\u6210\u4e00\u6761<strong>\u957f\u7eb8\u5e26<\/strong>\u3002\u867d\u7136\u4fe1\u606f\u90fd\u5728\uff0c\u4f46\u60f3\u5feb\u901f\u67e5\u67d0\u4e2a\u5730\u65b9\u5728\u54ea\u513f\u3001\u548c\u5468\u56f4\u7684\u5173\u7cfb\uff0c\u5c31\u53d8\u5f97\u975e\u5e38\u56f0\u96be\u4e86\u3002YOLOv1\u4e4b\u540e\u7684\u6539\u8fdb\u5c31\u662f<strong>\u76f4\u63a5\u5728\u5730\u56fe\u4e0a\u505a\u6807\u8bb0<\/strong>\uff0c\u4e0d\u518d\u9700\u8981\u526a\u788e\u3002<\/li>\n\n\n\n<li><strong>BN\u5c42\u7f3a\u5931<\/strong>\uff1a\u5c31\u50cfYOLOv1\u8fd9\u4f4d\u201c\u8001\u4fa6\u63a2\u201d\u5728\u7834\u6848\u65f6\uff0c\u8fd8\u6ca1\u6709\u4e00\u5957<strong>\u6807\u51c6\u5316\u7684\u5de5\u4f5c\u6d41\u7a0b\uff08BN\uff09<\/strong>\u00a0\u6765\u4fdd\u8bc1\u6bcf\u6b21\u52d8\u5bdf\u7684\u7a33\u5b9a\u6027\u3002\u540e\u6765\u51fa\u73b0\u7684YOLOv2\u7b49\u201c\u5e74\u8f7b\u4fa6\u63a2\u201d\u90fd\u5b66\u4f1a\u4e86\u8fd9\u5957\u6d41\u7a0b\uff0c\u6240\u4ee5\u5de5\u4f5c\u8d77\u6765\uff08\u8bad\u7ec3\u8d77\u6765\uff09\u66f4<strong>\u5feb\u3001\u66f4\u7a33<\/strong>\u3002<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5173\u4e8eBatchNormalization\u7684\u6982\u5ff5<\/p>\n<\/blockquote>\n\n\n\n<p>BN\u5c31\u50cf\u662f\u6df1\u5ea6\u5b66\u4e60\u7f51\u7edc\u4e2d\u7684\u4e00\u4f4d&nbsp;<strong>\u201c\u6807\u51c6\u5316\u6559\u7ec3\u201d<\/strong>\u3002\u5b83\u7684\u6838\u5fc3\u5de5\u4f5c\u662f\u5728\u6570\u636e\u8fdb\u5165\u6bcf\u4e00\u5c42\u4e4b\u524d\uff0c<strong>\u4e3b\u52a8\u8c03\u6574\u6570\u636e\u7684\u5206\u5e03<\/strong>\uff0c\u4f7f\u5176\u4fdd\u6301\u7a33\u5b9a\uff0c\u4ece\u800c\u8ba9\u6574\u4e2a\u7f51\u7edc\u7684<strong>\u8bad\u7ec3\u8fc7\u7a0b\u66f4\u5feb\u901f\u3001\u66f4\u5e73\u7a33<\/strong>\u3002<\/p>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u628a\u5b83\u60f3\u8c61\u6210\u5728\u4e00\u6761\u6d41\u6c34\u7ebf\u4e0a\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u6bcf\u4e2a\u5de5\u4f4d\uff08\u7f51\u7edc\u4e2d\u7684\u6bcf\u4e00\u5c42\uff09\u7684\u5904\u7406\u6548\u7387\u548c\u8d28\u91cf\uff0c\u90fd\u6709\u4e00\u4e2a\u4e13\u95e8\u7684\u5458<strong>\u5de5\u8d1f\u8d23\u5c06\u4e0a\u6e38\u9001\u6765\u7684\u534a\u6210\u54c1\uff08\u6570\u636e\uff09\u8fdb\u884c\u6574\u7406\u548c\u6807\u51c6\u5316<\/strong>\uff0c\u7136\u540e\u518d\u4ea4\u7ed9\u4e0b\u6e38\u5de5\u4f4d\u3002\u8fd9\u6837\u4e0b\u6e38\u5de5\u4f4d\u5c31\u4e0d\u9700\u8981\u603b\u662f\u9002\u5e94\u53d8\u5316\u65e0\u5e38\u7684\u8f93\u5165\uff0c\u4ece\u800c\u80fd\u66f4\u4e13\u6ce8\u5730\u5b8c\u6210\u81ea\u5df1\u7684\u672c\u804c\u5de5\u4f5c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2699\ufe0f BN\u662f\u5982\u4f55\u5de5\u4f5c\u7684\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>BN\u5c42\u7684\u5de5\u4f5c\u6d41\u7a0b\u901a\u5e38\u7d27\u968f\u5728\u4e00\u4e2a\u5377\u79ef\u5c42\u6216\u5168\u8fde\u63a5\u5c42\u4e4b\u540e\uff0c\u5728\u6fc0\u6d3b\u51fd\u6570\uff08\u5982ReLU\uff09\u4e4b\u524d\u3002\u5b83\u7684\u64cd\u4f5c\u53ef\u4ee5\u6982\u62ec\u4e3a\u4ee5\u4e0b\u4e09\u4e2a\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8ba1\u7b97\u6279\u6b21\u7edf\u8ba1\u91cf<\/strong>\uff1a\u9488\u5bf9\u5f53\u524d\u8fd9\u4e00\u5c0f\u6279\uff08mini-batch\uff09\u8bad\u7ec3\u6570\u636e\uff0cBN\u4f1a\u8ba1\u7b97\u6bcf\u4e2a\u7279\u5f81\u901a\u9053\u7684<strong>\u5747\u503c\uff08mean\uff09<\/strong>\u00a0\u548c<strong>\u65b9\u5dee\uff08variance\uff09<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u6807\u51c6\u5316<\/strong>\uff1a\u4f7f\u7528\u7b2c\u4e00\u6b65\u8ba1\u7b97\u51fa\u7684\u5747\u503c\u548c\u65b9\u5dee\uff0c\u5c06\u6570\u636e\u6807\u51c6\u5316\u4e3a<strong>\u5747\u503c\u4e3a0\u3001\u65b9\u5dee\u4e3a1<\/strong>\u7684\u5206\u5e03\u3002\u5177\u4f53\u516c\u5f0f\u662f\uff1a<code>(X - mean) \/ sqrt(variance + \u03b5)<\/code>\uff0c\u5176\u4e2d\u03b5\u662f\u4e00\u4e2a\u5f88\u5c0f\u7684\u5e38\u6570\uff0c\u9632\u6b62\u9664\u4ee5\u96f6\u3002<\/li>\n\n\n\n<li><strong>\u7f29\u653e\u4e0e\u5e73\u79fb<\/strong>\uff1a\u8fd9\u662fBN\u7684<strong>\u70b9\u775b\u4e4b\u7b14<\/strong>\u3002\u4e0a\u4e00\u6b65\u7684\u5f3a\u5236\u6807\u51c6\u5316\u53ef\u80fd\u4f1a\u6539\u53d8\u6570\u636e\u539f\u672c\u6709\u4ef7\u503c\u7684\u5206\u5e03\uff0c\u56e0\u6b64BN\u5f15\u5165\u4e86\u4e24\u4e2a<strong>\u53ef\u5b66\u4e60\u7684\u53c2\u6570<\/strong>\uff08\u03b3 \u548c \u03b2\uff09\uff0c\u5bf9\u6807\u51c6\u5316\u540e\u7684\u6570\u636e\u8fdb\u884c\u7f29\u653e\uff08scaling\uff09\u548c\u5e73\u79fb\uff08shifting\uff09\uff1a<code>Output = \u03b3 * X_normalized + \u03b2<\/code>\u3002\u8fd9\u4f7f\u5f97\u7f51\u7edc\u6709\u80fd\u529b<strong>\u81ea\u884c\u51b3\u5b9a<\/strong>\u662f\u5426\u8981\u6062\u590d\u6570\u636e\u539f\u6765\u7684\u5206\u5e03\uff0c\u6216\u662f\u4fdd\u7559\u90e8\u5206\u6807\u51c6\u5316\u540e\u7684\u7279\u6027\uff0c\u4ece\u800c\u4fdd\u6301\u4e86\u6a21\u578b\u7684\u8868\u8fbe\u80fd\u529b\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfaf \u4e3a\u4ec0\u4e48\u9700\u8981BN\uff1f\u5b83\u5e26\u6765\u4e86\u54ea\u4e9b\u597d\u5904\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>BN\u7684\u63d0\u51fa\u4e3b\u8981\u662f\u4e3a\u4e86\u89e3\u51b3\u6df1\u5ea6\u795e\u7ecf\u7f51\u7edc\u8bad\u7ec3\u4e2d\u7684<strong>\u5185\u90e8\u534f\u53d8\u91cf\u504f\u79fb\uff08Internal Covariate Shift\uff09<\/strong>&nbsp;\u95ee\u9898\u3002\u7b80\u5355\u6765\u8bf4\uff0c\u5c31\u662f\u7f51\u7edc\u5e95\u5c42\u53c2\u6570\u7684\u5fae\u5c0f\u66f4\u65b0\uff0c\u4f1a\u968f\u7740\u7f51\u7edc\u6df1\u5ea6\u7684\u589e\u52a0\u800c\u9010\u6e10\u653e\u5927\uff0c\u5bfc\u81f4\u540e\u9762\u5c42\u7684\u8f93\u5165\u5206\u5e03\u53d1\u751f\u5267\u70c8\u53d8\u5316\uff0c\u8fd9\u4f1a\u8ba9\u8bad\u7ec3\u53d8\u5f97\u56f0\u96be\u3002<\/p>\n\n\n\n<p>BN\u901a\u8fc7\u56fa\u5b9a\u6bcf\u4e00\u5c42\u8f93\u5165\u7684\u5206\u5e03\uff0c\u5e26\u6765\u4e86\u8bf8\u591a\u597d\u5904\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u597d\u5904<\/th><th>\u901a\u4fd7\u89e3\u91ca<\/th><\/tr><\/thead><tbody><tr><td><strong>\u52a0\u901f\u8bad\u7ec3\u6536\u655b<\/strong><\/td><td><strong>\u7a33\u5b9a\u4e86\u5b66\u4e60\u8fc7\u7a0b<\/strong>\u3002\u6570\u636e\u5206\u5e03\u7a33\u5b9a\uff0c\u4f7f\u5f97\u68af\u5ea6\u66f4\u65b0\u66f4\u6709\u610f\u4e49\uff0c\u7f51\u7edc\u80fd\u66f4\u5feb\u627e\u5230\u6700\u4f18\u89e3\u3002<\/td><\/tr><tr><td><strong>\u5141\u8bb8\u4f7f\u7528\u66f4\u5927\u7684\u5b66\u4e60\u7387<\/strong><\/td><td><strong>\u8bad\u7ec3\u66f4\u201c\u5927\u80c6\u201d<\/strong>\u3002BN\u51cf\u5c11\u4e86\u8bad\u7ec3\u5bf9\u53c2\u6570\u5c3a\u5ea6\u7684\u654f\u611f\u6027\uff0c\u4f7f\u7528\u66f4\u5927\u7684\u5b66\u4e60\u7387\u4e5f\u4e0d\u6613\u5bfc\u81f4\u68af\u5ea6\u7206\u70b8\u6216\u6d88\u5931\uff0c\u4ece\u800c\u8fdb\u4e00\u6b65\u52a0\u901f\u8bad\u7ec3\u3002<\/td><\/tr><tr><td><strong>\u7f13\u89e3\u68af\u5ea6\u6d88\u5931<\/strong><\/td><td><strong>\u4fdd\u8bc1\u68af\u5ea6\u201c\u6d3b\u529b\u201d<\/strong>\u3002\u5b83\u5c06\u6fc0\u6d3b\u51fd\u6570\u7684\u8f93\u5165\u503c\u7a33\u5b9a\u5728\u5bf9\u5176\u8f93\u5165\u654f\u611f\u7684\u533a\u57df\uff08\u4f8b\u5982\u5bf9\u4e8eSigmoid\u51fd\u6570\uff0c\u5c31\u662f\u63a5\u8fd10\u7684\u533a\u57df\uff09\uff0c\u4f7f\u5f97\u68af\u5ea6\u66f4\u5927\uff0c\u7f13\u89e3\u4e86\u68af\u5ea6\u6d88\u5931\u95ee\u9898\u3002<\/td><\/tr><tr><td><strong>\u6709\u4e00\u5b9a\u7684\u6b63\u5219\u5316\u6548\u679c<\/strong><\/td><td><strong>\u51cf\u5c11\u8fc7\u62df\u5408<\/strong>\u3002BN\u5728\u8bad\u7ec3\u65f6\u4f7f\u7528\u5c0f\u6279\u91cf\u7684\u7edf\u8ba1\u91cf\u800c\u975e\u5168\u5c40\u7edf\u8ba1\u91cf\uff0c\u4f1a\u7ed9\u7f51\u7edc\u5e26\u6765\u4e00\u4e9b\u566a\u58f0\uff0c\u7c7b\u4f3c\u4e8eDropout\u7684\u6548\u679c\uff0c\u53ef\u4ee5\u8f7b\u5fae\u51cf\u5c11\u8fc7\u62df\u5408\uff0c\u5bf9\u5176\u4ed6\u6b63\u5219\u5316\u624b\u6bb5\u7684\u4f9d\u8d56\u4e5f\u964d\u4f4e\u4e86\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udd04 \u8bad\u7ec3\u548c\u9884\u6d4b\u65f6\u7684\u533a\u522b<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u4e00\u70b9\u975e\u5e38\u91cd\u8981\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8bad\u7ec3\u9636\u6bb5<\/strong>\uff1aBN\u4f7f\u7528<strong>\u5f53\u524d\u5c0f\u6279\u91cf\uff08mini-batch\uff09\u6570\u636e\u7684\u5747\u503c\u548c\u65b9\u5dee<\/strong>\u6765\u8fdb\u884c\u6807\u51c6\u5316\u3002<\/li>\n\n\n\n<li><strong>\u9884\u6d4b\u9636\u6bb5\uff08\u63a8\u7406\u9636\u6bb5\uff09<\/strong>\uff1a\u6b64\u65f6\u6211\u4eec\u53ef\u80fd\u53ea\u6709\u4e00\u4e2a\u6837\u672c\u6216\u5f88\u5c11\u7684\u6837\u672c\uff0c\u65e0\u6cd5\u8ba1\u7b97\u6709\u610f\u4e49\u7684\u6279\u6b21\u7edf\u8ba1\u91cf\u3002\u56e0\u6b64\uff0cBN\u4f1a\u4f7f\u7528\u5728<strong>\u6574\u4e2a\u8bad\u7ec3\u96c6\u4e0a\u9884\u5148\u8ba1\u7b97\u597d\u7684\u79fb\u52a8\u5e73\u5747\uff08running mean\uff09\u548c\u79fb\u52a8\u65b9\u5dee\uff08running variance\uff09<\/strong>\u00a0\u6765\u8fdb\u884c\u6807\u51c6\u5316\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udc8e \u603b\u7ed3<\/p>\n<\/blockquote>\n\n\n\n<p>\u603b\u800c\u8a00\u4e4b\uff0c<strong>BatchNormalization\u662f\u4e00\u4e2a\u5728\u6df1\u5ea6\u795e\u7ecf\u7f51\u7edc\u4e2d\u7528\u4e8e\u7a33\u5b9a\u6570\u636e\u5206\u5e03\u3001\u52a0\u901f\u8bad\u7ec3\u5e76\u63d0\u5347\u6a21\u578b\u6cdb\u5316\u80fd\u529b\u7684\u91cd\u8981\u6280\u672f<\/strong>\u3002\u5b83\u901a\u8fc7\u6807\u51c6\u5316\u6bcf\u4e00\u5c42\u7684\u8f93\u5165\uff0c\u5e76\u5f15\u5165\u53ef\u5b66\u4e60\u53c2\u6570\u6765\u4fdd\u6301\u6a21\u578b\u7684\u8868\u8fbe\u80fd\u529b\uff0c\u4f7f\u5f97\u8bad\u7ec3\u66f4\u6df1\u3001\u66f4\u5f3a\u5927\u7684\u795e\u7ecf\u7f51\u7edc\u6210\u4e3a\u53ef\u80fd\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5570\u55e6\uff0c\u54b1\u4eec\u7ee7\u7eed\u5b66\u4e60\uff01<\/p>\n<\/blockquote>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e8c\u3001YOLOv1\u7684\u68c0\u6d4b\u539f\u7406<\/h1>\n\n\n\n<p>\u592a\u68d2\u4e86\uff01\u8fd9\u4e09\u5f20\u622a\u56fe\u7ec4\u5408\u5728\u4e00\u8d77\uff0c\u975e\u5e38\u5b8c\u6574\u5730\u89e3\u91ca\u4e86YOLOv1\u6700\u6838\u5fc3\u7684\u601d\u60f3\u3002\u4f60\u89c9\u5f97\u4e0d\u7406\u89e3\u975e\u5e38\u6b63\u5e38\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u8bbe\u8ba1\u601d\u8def\u786e\u5b9e\u975e\u5e38\u5de7\u5999\uff0c\u548c\u4eba\u7684\u76f4\u89c9\u4e0d\u592a\u4e00\u6837\u3002<\/p>\n\n\n\n<p>\u522b\u62c5\u5fc3\uff0c\u6211\u4eec\u7528\u4e00\u4e2a\u8d85\u7b80\u5355\u7684\u6bd4\u55bb\uff0c\u628a\u8fd9\u4e09\u5f20\u56fe\u7684\u5185\u5bb9\u4e32\u8d77\u6765\uff0c\u4f60\u4e00\u5b9a\u80fd\u61c2\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\udde0 \u6838\u5fc3\u601d\u60f3\u4e00\u53e5\u8bdd\u603b\u7ed3<\/p>\n<\/blockquote>\n\n\n\n<p>YOLOv1\u7684\u505a\u6cd5\u5c31\u50cf\u662f\uff1a<strong>\u4f60\u6709\u4e00\u5f20\u7167\u7247\uff0c\u7136\u540e\u62ff\u4e00\u5f20\u900f\u660e\u7684\u3001\u753b\u77407x7\u683c\u5b50\u7684\u7f51\u683c\u7eb8\u76d6\u5728\u4e0a\u9762\uff0c\u7136\u540e\u4f60\u5bf9\u7740\u6bcf\u4e00\u4e2a\u5c0f\u683c\u5b50\u95ee\uff1a\u201c\u8fd9\u4e2a\u683c\u5b50\u7684\u4e2d\u5fc3\u70b9\uff0c\u662f\u4e0d\u662f\u67d0\u4e2a\u4e1c\u897f\uff08\u6bd4\u5982\u72d7\u3001\u81ea\u884c\u8f66\uff09\u7684\u4e2d\u5fc3\uff1f\u5982\u679c\u662f\uff0c\u8bf7\u628a\u8fd9\u4e2a\u4e1c\u897f\u7684\u6846\u753b\u51fa\u6765\uff0c\u5e76\u544a\u8bc9\u6211\u662f\u4ec0\u4e48\u4e1c\u897f\u3002\u201d<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e3a\u4ec0\u4e48\u662f 7x7x30\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p><strong>1. \u4e3a\u4ec0\u4e48\u662f 7x7 \u4e2a\u683c\u5b50\uff1f (S = 7)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u59cb\u56fe\u7247\u5c3a\u5bf8\u662f\u00a0<code>448 x 448<\/code>\u00a0\u50cf\u7d20\u3002<\/li>\n\n\n\n<li>\u7f51\u7edc\uff08Backbone\uff09\u5c31\u50cf\u662f\u4e00\u4e2a\u201c\u538b\u7f29\u673a\u201d\uff0c\u4f1a\u628a\u56fe\u7247\u4e0d\u65ad\u5730\u7f29\u5c0f\u3001\u63d0\u70bc\u3002\u8fd9\u4e2a\u538b\u7f29\u7684\u500d\u6570\u53eb\u505a\u00a0<strong><code>stride<\/code>\uff08\u6b65\u957f\/\u964d\u91c7\u6837\u7387\uff09<\/strong>\uff0c\u8fd9\u91cc\u662f64\u500d\u3002<\/li>\n\n\n\n<li>\u6240\u4ee5\uff0c\u6700\u7ec8\u5f97\u5230\u7684\u201c\u538b\u7f29\u540e\u7684\u7cbe\u534e\u4fe1\u606f\u56fe\u201d\u7684\u5c3a\u5bf8\u5c31\u662f\uff1a<code>448 \/ 64 = 7<\/code>\u3002\u6240\u4ee5\u8fd9\u5f20\u201c\u4fe1\u606f\u56fe\u201d\u6709\u00a0<code>7x7<\/code>\u00a0\u4e2a\u4f4d\u7f6e\u70b9\u3002<\/li>\n\n\n\n<li><strong>\u6bcf\u4e2a\u70b9\uff0c\u5c31\u8d1f\u8d23\u539f\u56fe\u4e2d\u5bf9\u5e94\u7684\u90a3\u4e00\u7247\u533a\u57df\uff08\u5373\u4e00\u4e2a\u683c\u5b50\uff09\uff01<\/strong>\u00a0\u8fd9\u5c31\u5bf9\u5e94\u4e86\u7b2c\u4e09\u5f20\u56fe\u91cc\u8bf4\u7684\u00a0<code>S = \u8f93\u5165\u5c3a\u5bf8 \/ \u6700\u5927stride<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>2. \u4e3a\u4ec0\u4e48\u6bcf\u4e2a\u683c\u5b50\u670930\u4e2a\u4fe1\u606f\uff1f (5B + C = 30)<\/strong>\u8fd9\u662f\u6700\u5173\u952e\u7684\u90e8\u5206\uff01\u7f51\u7edc\u5728\u6bcf\u4e2a\u683c\u5b50\uff08\u6bcf\u4e2a\u70b9\uff09\u4e0a\uff0c\u90fd\u8981\u8f93\u51fa\u4e00\u5927\u5806\u9884\u6d4b\u4fe1\u606f\u3002\u8fd9\u4e9b\u4fe1\u606f\u4e3b\u8981\u5305\u62ec\u4e24\u5927\u90e8\u5206\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bounding Box (bbox) \u9884\u6d4b\uff1a\u8d1f\u8d23\u201c\u753b\u6846\u201d<\/strong><ul><li>YOLOv1\u89c4\u5b9a\uff0c<strong>\u6bcf\u4e2a\u683c\u5b50\u53ef\u4ee5\u9884\u6d4b\u00a0<code>B=2<\/code>\u00a0\u4e2a\u53ef\u80fd\u5b58\u5728\u7684\u6846<\/strong>\uff08\u56e0\u4e3a\u4e00\u4e2a\u683c\u5b50\u91cc\u53ef\u80fd\u91cd\u53e0\u591a\u4e2a\u7269\u4f53\uff0c\u591a\u4e00\u4e2a\u6846\u5c31\u591a\u4e00\u6b21\u673a\u4f1a\uff09\u3002<\/li><li><strong>\u6bcf\u4e2a\u6846\u9700\u8981\u75285\u4e2a\u53c2\u6570\u6765\u63cf\u8ff0<\/strong>\uff1a<\/li><li>\u6240\u4ee5\uff0c\u5149\u662f\u201c\u753b\u6846\u201d\u8fd9\u4ef6\u4e8b\uff0c\u4e00\u4e2a\u683c\u5b50\u5c31\u9700\u8981\u00a0<code>5\u4e2a\u53c2\u6570\/\u6846 * 2\u4e2a\u6846 = 10\u4e2a\u53c2\u6570<\/code>\u3002<\/li><\/ul>\n<ol class=\"wp-block-list\">\n<li><strong>\u7f6e\u4fe1\u5ea6 (C \/ objectness)<\/strong>\uff1a\u8fd9\u4e2a\u6846\u91cc<strong>\u5230\u5e95\u6709\u6ca1\u6709\u7269\u4f53<\/strong>\uff1f\u6709\u591a\u5c11\u628a\u63e1\uff1f\u8fd9\u4e2a\u503c\u57280\u52301\u4e4b\u95f4\u3002\u53ef\u4ee5\u7406\u89e3\u4e3a\u201c\u6846\u7684\u53ef\u4fe1\u5ea6\u5206\u6570\u201d\u3002<\/li>\n\n\n\n<li><strong>\u6846\u7684\u4e2d\u5fc3\u70b9\u5750\u6807 (c\u2093, c\u1d67)<\/strong>\uff1a\u8fd9\u4e2a\u6846\u7684<strong>\u4e2d\u5fc3\u70b9<\/strong>\u5728\u8fd9\u4e2a\u683c\u5b50\u5185\u90e8\u7684<strong>\u76f8\u5bf9\u4f4d\u7f6e<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u6846\u7684\u5bbd\u548c\u9ad8 (w, h)<\/strong>\uff1a\u8fd9\u4e2a\u6846\u76f8\u5bf9\u4e8e\u6574\u4e2a\u56fe\u7247\u7684<strong>\u5bbd\u5ea6\u548c\u9ad8\u5ea6<\/strong>\u3002<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>\u7c7b\u522b\u9884\u6d4b\uff1a\u8d1f\u8d23\u201c\u53d6\u540d\u201d<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4e0d\u7ba1\u8fd9\u4e2a\u683c\u5b50\u9884\u6d4b\u4e86\u51e0\u4e2a\u6846\uff0c<strong>\u8fd9\u4e2a\u683c\u5b50\u53ea\u505a\u4e00\u6b21\u7c7b\u522b\u5224\u65ad<\/strong>\uff08\u5047\u8bbe\u4e00\u4e2a\u683c\u5b50\u91cc\u901a\u5e38\u53ea\u6709\u4e00\u4e2a\u7269\u4f53\uff09\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528\u7684\u6570\u636e\u96c6\u662fPASCAL VOC\uff0c\u91cc\u9762\u6709\u00a0<code>C=20<\/code>\u00a0\u4e2a\u7c7b\u522b\uff08\u6bd4\u5982\u4eba\u3001\u9e1f\u3001\u732b\u3001\u72d7\u3001\u81ea\u884c\u8f66...\uff09\u3002<\/li>\n\n\n\n<li>\u7f51\u7edc\u9700\u8981\u8f93\u51fa\u8fd920\u4e2a\u7c7b\u522b\u7684<strong>\u6982\u7387<\/strong>\u3002\u6bd4\u5982\uff0c\u5b83\u53ef\u80fd\u8f93\u51fa\u00a0<code>[0.1, 0.8, 0.05, ...]<\/code>\uff0c\u8868\u793a\u670980%\u7684\u6982\u7387\u662f\u201c\u72d7\u201d\u3002<\/li>\n\n\n\n<li>\u6240\u4ee5\uff0c\u5206\u7c7b\u9700\u8981\u00a0<code>20\u4e2a\u53c2\u6570<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u603b\u548c<\/strong>\uff1a<code>\u753b\u6846\u7684\u53c2\u6570\uff0810\u4e2a\uff09 + \u5206\u7c7b\u7684\u53c2\u6570\uff0820\u4e2a\uff09 = 30\u4e2a\u53c2\u6570<\/code>\u3002\n<ul class=\"wp-block-list\">\n<li>\u8fd9\u5c31\u662f\u516c\u5f0f\u00a0<strong><code>5B + C<\/code><\/strong>\u00a0\uff08<code>5*2 + 20 = 30<\/code>\uff09\u7684\u7531\u6765\u3002<\/li>\n\n\n\n<li>\u6574\u4e2a\u7f51\u7edc\u7684\u8f93\u51fa\u5c31\u662f\u00a0<code>7\u4e2a\u70b9 * 7\u4e2a\u70b9 * 30\u4e2a\u53c2\u6570\/\u70b9 = \u4e00\u4e2a 7x7x30 \u7684\u7279\u5f81\u56fe<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"565\" height=\"564\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060736526.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6764 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060736526.jpg 565w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060736526-300x300.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060736526-150x150.jpg 150w\" sizes=\"auto, (max-width: 565px) 100vw, 565px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"565\" height=\"564\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060736526.jpg\" alt=\"\" class=\"wp-image-6764\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060736526.jpg 565w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060736526-300x300.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060736526-150x150.jpg 150w\" sizes=\"auto, (max-width: 565px) 100vw, 565px\" \/><\/noscript><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u6765\u770b\u770b\u8fd9\u4e2a\u56fe\u7247<\/p>\n<\/blockquote>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7f51\u683c\u5212\u5206<\/strong>\uff1a\u56fe\u7247\u4e0a\u7684\u9ed1\u8272\u7f51\u683c\u7ebf\uff0c\u5c31\u662f\u628a\u56fe\u7247\u5212\u5206\u6210\u4e86\u5f88\u591a\u4e2a\u5c0f\u683c\u5b50\uff08\u5728YOLOv1\u91cc\u662f7x7\uff0c\u8fd9\u5f20\u56fe\u5212\u5206\u5f97\u66f4\u5bc6\u4e00\u4e9b\uff09\u3002<\/li>\n\n\n\n<li><strong>\u9010\u7f51\u683c\u68c0\u6d4b<\/strong>\uff1a\u73b0\u5728\uff0c\u60f3\u8c61YOLOv1\u7b97\u6cd5\u6b63\u5728\u5904\u7406\u8fd9\u5f20\u56fe\u3002\n<ul class=\"wp-block-list\">\n<li>\u5b83\u4f1a\u6ce8\u610f\u5230<strong>\u5de6\u4e0b\u89d2\u7684\u4e00\u4e9b\u683c\u5b50<\/strong>\uff08\u6bd4\u5982\u54c8\u58eb\u5947\u8138\u90e8\u4e2d\u5fc3\u7684\u90a3\u4e2a\u683c\u5b50\uff09\u3002\u8fd9\u4e9b\u683c\u5b50\u4f1a\u7ed9\u51fa\u5f88\u9ad8\u7684\u201c\u7f6e\u4fe1\u5ea6\u201d\uff08C\uff09\uff0c\u540c\u65f6\u8f93\u51fa\u4e00\u4e2a\u6846\u7684\u53c2\u6570\uff08c\u2093, c\u1d67, w, h\uff09\uff0c\u8fd9\u4e2a\u6846\u4f1a\u5b8c\u7f8e\u5730\u6846\u4f4f\u8fd9\u53ea\u54c8\u58eb\u5947\uff0c\u5e76\u4e14\u5b83\u4eec\u7684\u201c\u7c7b\u522b\u53c2\u6570\u201d\u4f1a\u5728\u201c\u72d7\u201d\u8fd9\u4e00\u9879\u4e0a\u7ed9\u51fa\u5f88\u9ad8\u7684\u6982\u7387\uff08\u6bd4\u59820.9\uff09\u3002<\/li>\n\n\n\n<li>\u540c\u6837\uff0c<strong>\u81ea\u884c\u8f66\u4e2d\u95f4\u7684\u683c\u5b50<\/strong>\u4e5f\u4f1a\u505a\u540c\u6837\u7684\u4e8b\u60c5\uff1a\u9ad8\u7f6e\u4fe1\u5ea6\u3001\u8f93\u51fa\u6846\u4f4f\u81ea\u884c\u8f66\u7684\u53c2\u6570\u3001\u5728\u201c\u81ea\u884c\u8f66\u201d\u7c7b\u522b\u4e0a\u7ed9\u51fa\u9ad8\u6982\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p><strong>\u6240\u4ee5\uff0cYOLOv1\u7684\u6574\u4e2a\u8fc7\u7a0b\u5c31\u662f\uff1a\u8ba9\u6bcf\u4e2a\u5c0f\u683c\u5b50\u81ea\u5df1\u72ec\u7acb\u5730\u601d\u8003\uff0c\u62a5\u544a\u5b83\u90a3\u91cc\u6709\u6ca1\u6709\u7269\u4f53\u7684\u4e2d\u5fc3\u3001\u7269\u4f53\u6709\u591a\u5927\u3001\u662f\u4ec0\u4e48\u4e1c\u897f\u3002\u6700\u540e\uff0c\u6211\u4eec\u628a\u6240\u6709\u683c\u5b50\u7684\u62a5\u544a\u6c47\u603b\u8d77\u6765\uff0c\u5c31\u5f97\u5230\u4e86\u56fe\u7247\u4e2d\u6240\u6709\u7269\u4f53\u7684\u68c0\u6d4b\u7ed3\u679c\u3002<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u518d\u6765<\/p>\n<\/blockquote>\n\n\n\n<p><img decoding=\"async\" class=\"lazyload\"data-src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_jpg\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXa8xSyx6Pn26tSmGCicVsFibvSqneQneNFdcwib8QNeq0lghNb2ZtLP2Cicw\/640?wx_fmt=jpeg&amp;from=appmsg&amp;watermark=1&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=5\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\u56fe\u7247\"><noscript><img decoding=\"async\" src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_jpg\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXa8xSyx6Pn26tSmGCicVsFibvSqneQneNFdcwib8QNeq0lghNb2ZtLP2Cicw\/640?wx_fmt=jpeg&amp;from=appmsg&amp;watermark=1&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=5\" alt=\"\u56fe\u7247\"><\/noscript>\u56e0\u6b64\uff0cYOLOv1\u5c31\u662f\u5728\u6bcf\u4e2a\u7f51\u683c\u4e0a\u53bb\u505a\u9884\u6d4b\uff0c\u7406\u60f3\u60c5\u51b5\u4e0b\uff0c\u5305\u542b\u4e86\u7269\u4f53\u4e2d\u5fc3\u70b9\u7684\u7f51\u683c\u4f1a\u6709\u5f88\u9ad8\u7684\u7f6e\u4fe1\u5ea6\u8f93\u51fa\uff0c\u800c\u4e0d\u5305\u542b\u4e2d\u5fc3\u70b9\u7684\u7f51\u683c\u7684\u7f6e\u4fe1\u5ea6\u8f93\u51fa\u5e94\u8be5\u5341\u5206\u63a5\u8fd10\u3002https:\/\/wxa.wxs.qq.com\/tmpl\/oc\/base_tmpl.html<\/p>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0cYOLOv1\u4e00\u5171\u6709\u4e09\u90e8\u5206\u8f93\u51fa\uff0c\u5206\u522b\u662fobjectness\u3001class\u4ee5\u53cabbox\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>objectness\u5c31\u662f\u4e0a\u9762\u6240\u8bf4\u7684\u6846\u7684\u7f6e\u4fe1\u5ea6\uff0c\u7528\u4e8e\u8868\u5f81\u8be5\u7f51\u683c\u662f\u5426\u6709\u7269\u4f53\uff1b<\/li>\n\n\n\n<li>class\u5c31\u662f\u7c7b\u522b\u9884\u6d4b\uff1b<\/li>\n\n\n\n<li>\u800cbbox\u5c31\u662f\u8fb9\u754c\u6846(bounding box)\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u660e\u786e\u4e86\u7f51\u7edc\u7684\u68c0\u6d4b\u57fa\u672c\u539f\u7406\u540e\uff0c\u63a5\u4e0b\u6765\u5c31\u5e94\u8be5\u8003\u8651\u5982\u4f55\u4f7f\u5f97\u7f51\u7edc\u5b66\u4e60\u5230\u8fd9\u4e00\u80fd\u529b\uff0c\u6362\u8a00\u4e4b\uff0c\u6216\u8005\u8bf4\uff0c\u4e3a\u4e86\u8bad\u7ec3\u8fd9\u4e2aYOLO-v1\uff0c\u5230\u5e95\u5e94\u8be5\u5982\u4f55\u53bb\u8bbe\u8ba1groundtruth\u5462\uff1f<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7ee7\u7eed\u7528\u90a3\u4e2a\u201c\u7f51\u683c\u7eb8\u201d\u7684\u6bd4\u55bb\uff0c\u6765\u5f7b\u5e95\u8bb2\u6e05\u695aYOLOv1\u662f\u5982\u4f55\u88ab\u8bad\u7ec3\u51fa\u6765\u7684\u3002<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\udde0 \u6838\u5fc3\u601d\u60f3\u56de\u987e\uff1a\u7f51\u7edc\u7684\u8f93\u51fa\u662f\u4ec0\u4e48\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u9996\u5148\uff0c\u6211\u4eec\u518d\u6b21\u660e\u786e\uff0cYOLOv1\u7f51\u7edc\u7684<strong>\u6700\u7ec8\u8f93\u51fa<\/strong>\u662f\u4e00\u4e2a&nbsp;<code>7 x 7 x 30<\/code>&nbsp;\u7684\u5f20\u91cf\u3002 \u8fd9\u4ee3\u8868\u5b83\u5c06\u56fe\u7247\u5206\u6210\u4e86&nbsp;<strong>7x7=49\u4e2a\u683c\u5b50<\/strong>\uff0c\u6bcf\u4e2a\u683c\u5b50\u8d1f\u8d23\u9884\u6d4b\u4e00\u4e9b\u4fe1\u606f\uff0c\u8fd9\u4e9b\u4fe1\u606f\u88ab\u5305\u88c5\u5728\u4e00\u4e2a\u6709&nbsp;<strong>30\u4e2a\u6570\u5b57<\/strong>&nbsp;\u7684\u201c\u6570\u636e\u5305\u201d\u91cc\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u201c\u6570\u636e\u5305\u201d\u91cc\u5177\u4f53\u88c5\u4e86\u4e09\u79cd\u4e1c\u897f\uff08\u5bf9\u5e94\u4f60\u63d0\u5230\u7684\u4e09\u90e8\u5206\u8f93\u51fa\uff09\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Objectness (\u7f6e\u4fe1\u5ea6)<\/strong>\uff1a<code>2\u4e2a\u6570\u5b57<\/code>\u3002\u8868\u793a\u8fd9\u4e2a\u683c\u5b50\u9884\u6d4b\u7684<strong>\u4e24\u4e2a\u8fb9\u754c\u6846<\/strong>\u4e2d\uff0c\u5404\u81ea\u542b\u6709\u7269\u4f53\u7684\u53ef\u4fe1\u5ea6\u662f\u591a\u5c11\uff080\u52301\u4e4b\u95f4\uff09\u3002<\/li>\n\n\n\n<li><strong>Bbox (\u8fb9\u754c\u6846)<\/strong>\uff1a<code>8\u4e2a\u6570\u5b57<\/code>\u00a0(<code>2\u4e2a\u6846 * 4\u4e2a\u5750\u6807 = 8<\/code>)\u3002\u6bcf\u4e2a\u6846\u9700\u89814\u4e2a\u6570\u5b57\u6765\u63cf\u8ff0\u5176\u4f4d\u7f6e\u548c\u5927\u5c0f\uff1a<strong>\u4e2d\u5fc3\u70b9\u5750\u6807(x, y)<\/strong>\u00a0\u548c\u00a0<strong>\u5bbd\u9ad8(w, h)<\/strong>\u3002<\/li>\n\n\n\n<li><strong>Class (\u7c7b\u522b\u6982\u7387)<\/strong>\uff1a<code>20\u4e2a\u6570\u5b57<\/code>\u3002\u8868\u793a\u8fd9\u4e2a\u683c\u5b50\u91cc\u7684\u7269\u4f53<strong>\u5c5e\u4e8e\u5404\u4e2a\u7c7b\u522b\u7684\u6982\u7387<\/strong>\uff08\u6bd4\u5982\u7b2c1\u4e2a\u6570\u5b57\u4ee3\u8868\u201c\u4eba\u201d\u7684\u6982\u7387\uff0c\u7b2c2\u4e2a\u4ee3\u8868\u201c\u8f66\u201d\u7684\u6982\u7387...\uff09\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u6240\u4ee5\uff0c<code>2 (Objectness) + 8 (Bbox) + 20 (Class) = 30<\/code>\u3002\u5b8c\u7f8e\uff01<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfaf \u5982\u4f55\u8bad\u7ec3\uff1f\u5173\u952e\u5728\u4e8e\u201c\u5236\u9020\u6807\u51c6\u7b54\u6848\u201d<\/p>\n<\/blockquote>\n\n\n\n<p>\u8bad\u7ec3\u4e00\u4e2a\u7f51\u7edc\uff0c\u5c31\u662f\u8ba9\u5b83\u5b66\u4f1a\u8f93\u51fa\u6b63\u786e\u7684\u201c30\u4e2a\u6570\u5b57\u7684\u6570\u636e\u5305\u201d\u3002\u600e\u4e48\u5b66\u5462\uff1f\u6211\u4eec\u9700\u8981\u7ed9\u5b83\u63d0\u4f9b<strong>\u6210\u5343\u4e0a\u4e07\u5f20\u56fe\u7247<\/strong>\uff0c\u5e76\u4e14<strong>\u6bcf\u4e00\u5f20\u56fe\u7247\u90fd\u8981\u914d\u597d\u4e00\u4e2a\u201c\u6807\u51c6\u7b54\u6848\u201d<\/strong>\u3002\u8fd9\u4e2a\u201c\u6807\u51c6\u7b54\u6848\u201d\u5c31\u662f&nbsp;<strong>Ground Truth\uff08\u771f\u5b9e\u503c\uff09<\/strong>\u3002<\/p>\n\n\n\n<p><strong>Ground Truth \u5c31\u662f\u4e00\u4e2a\u548c\u7f51\u7edc\u8f93\u51fa\u5c3a\u5bf8\u4e00\u6a21\u4e00\u6837\u7684\u5f20\u91cf\uff1a<code>7 x 7 x 30<\/code>\u3002<\/strong>&nbsp;\u6211\u4eec\u7684\u4efb\u52a1\u5c31\u662f\u6839\u636e\u56fe\u7247\u4e2d\u7269\u4f53\u7684\u771f\u5b9e\u4f4d\u7f6e\u548c\u7c7b\u522b\uff0c\u4eba\u5de5\u5236\u9020\u51fa\u8fd9\u4e2a\u201c\u6807\u51c6\u7b54\u6848\u201d\u5f20\u91cf\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5236\u4f5cGround Truth\u7684\u6b65\u9aa4\uff08\u8d85\u7ea7\u91cd\u8981\uff01\uff09\uff1a<\/p>\n<\/blockquote>\n\n\n\n<p>\u6211\u4eec\u5047\u8bbe\u8bad\u7ec3\u56fe\u7247\u91cc\u6709\u4e00\u53ea\u72d7\u548c\u4e00\u8f86\u81ea\u884c\u8f66\uff0c\u5c31\u50cf\u4f60\u7b2c\u4e8c\u5f20\u56fe\u90a3\u6837\u3002<\/p>\n\n\n\n<p><strong>\u7b2c1\u6b65\uff1a\u5212\u5206\u7f51\u683c &amp; \u786e\u5b9a\u8d23\u4efb\u683c<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5c06\u56fe\u7247\u5212\u5206\u4e3a7x7\u7684\u7f51\u683c\u3002<\/li>\n\n\n\n<li>\u627e\u51fa<strong>\u6bcf\u4e2a\u7269\u4f53\u7684\u4e2d\u5fc3\u70b9\u843d\u5728\u54ea\u4e2a\u683c\u5b50\u91cc<\/strong>\u3002\n<ul class=\"wp-block-list\">\n<li>\u6bd4\u5982\uff0c\u72d7\u7684\u4e2d\u5fc3\u70b9\u843d\u5728\u4e86\u7b2c(3, 4)\u4e2a\u683c\u5b50\u91cc\uff08\u7b2c3\u884c\u7b2c4\u5217\uff09\u3002<\/li>\n\n\n\n<li>\u81ea\u884c\u8f66\u7684\u4e2d\u5fc3\u70b9\u843d\u5728\u4e86\u7b2c(5, 2)\u4e2a\u683c\u5b50\u91cc\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6838\u5fc3\u89c4\u5219\uff1a\u4e00\u4e2a\u683c\u5b50\u6700\u591a\u53ea\u8d1f\u8d23\u9884\u6d4b\u4e00\u4e2a\u7269\u4f53\uff01<\/strong>\u00a0\u53ea\u6709\u5305\u542b\u4e86\u7269\u4f53\u4e2d\u5fc3\u70b9\u7684\u90a3\u4e2a\u683c\u5b50\uff0c\u624d\u9700\u8981\u4ea7\u751f\u79ef\u6781\u7684\u9884\u6d4b\u3002\u5176\u4ed6\u683c\u5b50\u4ea7\u751f\u7684\u6846\uff0c\u7406\u60f3\u60c5\u51b5\u4e0b\u7f6e\u4fe1\u5ea6\u90fd\u5e94\u8be5\u4e3a0\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u7b2c2\u6b65\uff1a\u586b\u5145\u201c\u6807\u51c6\u7b54\u6848\u201d\u5f20\u91cf<\/strong>\u73b0\u5728\uff0c\u6211\u4eec\u5f00\u59cb\u586b\u5199\u90a3\u4e2a\u5de8\u5927\u7684\u3001\u7a7a\u7684&nbsp;<code>7x7x30<\/code>&nbsp;\u7684\u201c\u6807\u51c6\u7b54\u6848\u201d\u8868\u683c\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5bf9\u4e8e (3,4) \u53f7\u683c\u5b50\uff08\u6709\u72d7\uff09<\/strong>\uff1a<ul><li>\u8fd9\u662f\u4e00\u4e2a<strong>20\u5206\u7c7b<\/strong>\u7684\u95ee\u9898\u3002\u72d7\u5728PASCAL VOC\u6570\u636e\u96c6\u91cc\u5bf9\u5e94\u7b2c\u51e0\u4e2a\u7c7b\u522b\uff0c\u6211\u4eec\u5c31\u5728\u90a3\u4e2a\u4f4d\u7f6e\u586b\u4e0a<code>1<\/code>\uff0c\u5176\u4ed6\u6240\u6709\u7c7b\u522b\u4f4d\u7f6e\u90fd\u586b\u4e0a<code>0<\/code>\u3002<\/li><li>\u4f8b\u5982\uff0c\u5982\u679c\u201c\u72d7\u201d\u662f\u7b2c5\u7c7b\uff0c\u90a3\u4e48\u8fd9\u4e2a\u683c\u5b50\u7684\u7c7b\u522b\u90e8\u5206\u5c31\u662f\u00a0<code>[0, 0, 0, 0, 1, 0, 0, ..., 0]<\/code>\u00a0(\u517120\u4f4d)\u3002<\/li><\/ul><ul><li>\u6211\u4eec\u5c06\u72d7\u7684\u771f\u5b9e\u8fb9\u754c\u6846\uff08\u7531\u4eba\u5de5\u6807\u6ce8\u597d\u7684\uff09\u6362\u7b97\u6210YOLO\u9700\u8981\u7684\u683c\u5f0f\uff08\u4e2d\u5fc3\u70b9\u76f8\u5bf9\u4e8e\u8be5\u683c\u5b50\u7684\u504f\u79fb\u91cf\uff0c\u5bbd\u9ad8\u76f8\u5bf9\u4e8e\u6574\u4e2a\u56fe\u7247\u7684\u6bd4\u4f8b\uff09\uff0c\u7136\u540e<strong>\u628a\u8fd9\u4e2a\u503c\u540c\u65f6\u4f5c\u4e3a\u4e24\u4e2a\u9884\u6d4b\u6846\u7684\u5b66\u4e60\u76ee\u6807<\/strong>\u3002<\/li><\/ul><ul><li>\u8fd9\u4e2a\u683c\u5b50\u9884\u6d4b\u4e86<strong>\u4e24\u4e2a<\/strong>\u8fb9\u754c\u6846\uff08B=2\uff09\u3002\u4f46<strong>\u53ea\u6709\u4e00\u4e2a\u6846\u662f\u201c\u8d1f\u8d23\u201d\u7684<\/strong>\u3002<\/li><li>\u6211\u4eec\u4e8b\u5148\u4e0d\u77e5\u9053\u54ea\u4e2a\u6846\u5f62\u72b6\u4f1a\u66f4\u597d\uff0c\u6240\u4ee5\u5728Ground Truth\u91cc\uff0c\u6211\u4eec<strong>\u8ba9\u8fd9\u4e24\u4e2a\u6846\u90fd\u53bb\u5b66\u4e60\u62df\u5408\u540c\u4e00\u4e2a\u771f\u6b63\u7684\u72d7\u6846<\/strong>\u3002<\/li><li>\u4f46\u662f\uff0c<strong>\u6700\u7ec8\u8ba1\u7b97\u7f6e\u4fe1\u5ea6\u8bef\u5dee\u65f6\uff0c\u53ea\u8ba9\u4e0e\u771f\u5b9e\u6846\u91cd\u5408\u5ea6\u66f4\u9ad8\uff08IoU\u66f4\u5927\uff09\u7684\u90a3\u4e2a\u6846\u7684\u201c\u7f6e\u4fe1\u5ea6\u201d\u76ee\u6807\u4e3a1<\/strong>\uff0c\u53e6\u4e00\u4e2a\u6846\u7684\u7f6e\u4fe1\u5ea6\u76ee\u6807\u4e3a0\u3002\u8fd9\u6837\u7f51\u7edc\u5c31\u4f1a\u5b66\u4f1a\uff1a<strong>\u201c\u54e6\uff0c\u6211\u8fd9\u4e2a\u683c\u5b50\u91cc\u7684\u4e24\u4e2a\u6846\uff0c\u8981\u6709\u4e00\u4e2a\u975e\u5e38\u81ea\u4fe1\u5730\u62a5\u544a\u8fd9\u91cc\u6709\u7269\u4f53\uff0c\u53e6\u4e00\u4e2a\u5c31\u5f53\u5907\u80ce\u597d\u4e86\u3002\u201d<\/strong><\/li><\/ul>\n<ol class=\"wp-block-list\">\n<li><strong>Objectness (\u7f6e\u4fe1\u5ea6)<\/strong>\uff1a<\/li>\n\n\n\n<li><strong>Bbox (\u8fb9\u754c\u6846)<\/strong>\uff1a<\/li>\n\n\n\n<li><strong>Class (\u7c7b\u522b)<\/strong>\uff1a<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>\u5bf9\u4e8e (5,2) \u53f7\u683c\u5b50\uff08\u6709\u81ea\u884c\u8f66\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u91cd\u590d\u4e0a\u8ff0\u8fc7\u7a0b\uff0c\u4f46\u628a\u201c\u72d7\u201d\u6362\u6210\u201c\u81ea\u884c\u8f66\u201d\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5bf9\u4e8e\u5176\u4ed6\u6240\u6709\u683c\u5b50\uff08\u6ca1\u6709\u7269\u4f53\u4e2d\u5fc3\u70b9\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>Objectness (\u7f6e\u4fe1\u5ea6)<\/strong>\uff1a\u4e24\u4e2a\u6846\u7684\u7f6e\u4fe1\u5ea6\u5b66\u4e60\u76ee\u6807<strong>\u90fd\u662f0<\/strong>\u3002<\/li>\n\n\n\n<li><strong>Bbox (\u8fb9\u754c\u6846)<\/strong>\uff1a<strong>\u4e0d\u8ba1\u7b97\u635f\u5931<\/strong>\u3002\u56e0\u4e3a\u8ba9\u7f51\u7edc\u53bb\u5b66\u4e60\u201c\u6ca1\u6709\u6846\u201d\u5e94\u8be5\u957f\u4ec0\u4e48\u6837\u662f\u6ca1\u6709\u610f\u4e49\u7684\uff0c\u6211\u4eec\u53ea\u5173\u5fc3\u5b83\u80fd\u4e0d\u80fd\u628a\u201c\u6709\u6846\u201d\u9884\u6d4b\u5bf9\u3002<\/li>\n\n\n\n<li><strong>Class (\u7c7b\u522b)<\/strong>\uff1a<strong>\u4e0d\u8ba1\u7b97\u635f\u5931<\/strong>\u3002\u540c\u6837\uff0c\u6211\u4eec\u4e0d\u5f3a\u8feb\u7f51\u7edc\u53bb\u5b66\u4e60\u201c\u8fd9\u91cc\u6ca1\u6709\u4e1c\u897f\u201d\u65f6\u8be5\u8f93\u51fa\u4ec0\u4e48\u7c7b\u522b\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2696\ufe0f \u7f51\u7edc\u7684\u5b66\u4e60\u8fc7\u7a0b\uff1a\u4e0d\u65ad\u6bd4\u8f83\u548c\u4fee\u6b63<\/p>\n<\/blockquote>\n\n\n\n<p>\u8bad\u7ec3\u5f00\u59cb\u540e\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7f51\u7edc\u6536\u5230\u4e00\u5f20\u56fe\u7247\uff0c\u8f93\u51fa\u4e00\u4e2a\u00a0<code>7x7x30<\/code>\u00a0\u7684\u201c\u9884\u6d4b\u503c\u201d\u3002<\/li>\n\n\n\n<li>\u6211\u4eec\u5c06\u8fd9\u4e2a\u201c\u9884\u6d4b\u503c\u201d\u548c\u6211\u4eec\u624b\u5de5\u5236\u4f5c\u597d\u7684\u201c\u6807\u51c6\u7b54\u6848(Ground Truth)\u201d\u8fdb\u884c\u5bf9\u6bd4\uff0c\u8ba1\u7b97\u5dee\u8ddd\uff08\u635f\u5931Loss\uff09\u3002<\/li>\n\n\n\n<li>\u6839\u636e\u5dee\u8ddd\uff0c\u901a\u8fc7\u53cd\u5411\u4f20\u64ad\u7b97\u6cd5\u6765\u8c03\u6574\u7f51\u7edc\u5185\u90e8\u7684\u6240\u6709\u53c2\u6570\uff08\u6bd4\u5982\u5377\u79ef\u6838\u7684\u6743\u91cd\uff09\uff0c\u8ba9\u7f51\u7edc\u4e0b\u4e00\u6b21\u7684\u9884\u6d4b\u80fd\u66f4\u63a5\u8fd1\u201c\u6807\u51c6\u7b54\u6848\u201d\u3002<\/li>\n\n\n\n<li>\u91cd\u590d\u51e0\u767e\u4e07\u6b21\u8fd9\u4e2a\u8fc7\u7a0b\uff0c\u7f51\u7edc\u5c31\u5b66\u4f1a\u4e86\u5982\u4f55\u4ece\u56fe\u7247\u4e2d\u63d0\u53d6\u7279\u5f81\uff0c\u5e76\u6700\u7ec8\u5728\u6b63\u786e\u7684\u683c\u5b50\u4e0a\uff0c\u8f93\u51fa\u6b63\u786e\u768430\u4e2a\u6570\u5b57\u3002<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udc8e \u603b\u7ed3<\/p>\n<\/blockquote>\n\n\n\n<p>\u603b\u7ed3\u4e00\u4e0b\uff0c\u8bad\u7ec3YOLOv1\u65f6\u8bbe\u8ba1Ground Truth\u7684\u6838\u5fc3\u601d\u60f3\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7f51\u683c\u8d1f\u8d23\u5236<\/strong>\uff1a\u56fe\u7247\u88ab\u5206\u6210SxS\u7f51\u683c\uff0c<strong>\u53ea\u6709\u5305\u542b\u7269\u4f53\u4e2d\u5fc3\u70b9\u7684\u7f51\u683c\u624d\u9700\u8981\u505a\u51fa\u79ef\u6781\u9884\u6d4b<\/strong>\u3002<\/li>\n\n\n\n<li><strong>GT\u7684\u6784\u9020<\/strong>\uff1aGround Truth\u662f\u4e00\u4e2a\u00a0<code>S x S x (5B+C)<\/code>\u00a0\u7684\u5f20\u91cf\u3002<\/li>\n\n\n\n<li><strong>\u6709\u7269\u4f53\u7f51\u683c<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u7f6e\u4fe1\u5ea6<\/strong>\uff1a\u8ba9\u4e0e\u771f\u5b9e\u6846\u6700\u5339\u914d\u7684\u90a3\u4e2a\u9884\u6d4b\u6846\u7684\u7f6e\u4fe1\u5ea6\u76ee\u6807\u4e3a<code>1<\/code>\uff0c\u53e6\u4e00\u4e2a\u4e3a<code>0<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u8fb9\u754c\u6846<\/strong>\uff1a\u6240\u6709\u9884\u6d4b\u6846\u90fd\u53bb\u5b66\u4e60\u62df\u5408\u540c\u4e00\u4e2a\u771f\u5b9e\u6846\u7684\u4f4d\u7f6e\u3002<\/li>\n\n\n\n<li><strong>\u7c7b\u522b<\/strong>\uff1a\u91c7\u7528<strong>one-hot\u7f16\u7801<\/strong>\uff0c\u7269\u4f53\u771f\u5b9e\u7c7b\u522b\u4f4d\u7f6e\u4e3a<code>1<\/code>\uff0c\u5176\u4f59\u4e3a<code>0<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u65e0\u7269\u4f53\u7f51\u683c<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u6838\u5fc3\u76ee\u6807\u662f\u8ba9\u5b83\u4eec\u7684<strong>\u7f6e\u4fe1\u5ea6\u5c3d\u53ef\u80fd\u63a5\u8fd10<\/strong>\uff0c\u8fd9\u662f\u4f18\u5316\u7684\u5927\u5934\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u5de7\u5999\u5730\u5c06\u590d\u6742\u7684\u7269\u4f53\u68c0\u6d4b\u95ee\u9898\uff0c\u8f6c\u5316\u4e3a\u4e86\u6bcf\u4e2a\u683c\u5b50\u4e0a\u7684<strong>\u56de\u5f52\uff08\u9884\u6d4b\u6846\u5750\u6807\uff09<\/strong>&nbsp;\u548c<strong>\u5206\u7c7b\uff08\u9884\u6d4b\u7c7b\u522b\uff09<\/strong>&nbsp;\u95ee\u9898\uff0c\u8fd9\u5c31\u662fYOLO\u7cfb\u5217\u7b97\u6cd5\u5f3a\u5927\u4e14\u9ad8\u6548\u7684\u6839\u6e90\u3002<\/p>\n\n\n\n<p>\u5f53\u7136\u8fd9\u53ea\u662f\u4e2a\u6982\u5ff5\uff0c\u6211\u4eec\u8fd8\u5f97\u6df1\u5165\u4e00\u4e0b\uff0c\u6bd5\u7adf\u8981\u5b9e\u64cd\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e09\u3001YOLOv1\u7684\u6b63\u6837\u672c\u5236\u4f5c\u65b9\u6cd5<\/h1>\n\n\n\n<p>\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\uff0cYOLOv1\u6700\u540e\u8f93\u51fa\u4e00\u4e2a 7 x 7 \u7684\u7f51\u683c\uff0c\u6bcf\u4e2a\u7f51\u683c\u4f1a\u7ed9\u51fa30\u4e2a\u53c2\u6570\uff0c\u5305\u62ec\u4e24\u4e2abbox\u76845\u4e2a\u53c2\u6570\uff08\u6846\u7684\u7f6e\u4fe1\u5ea6+\u6846\u7684\u5750\u6807\u53c2\u6570\uff09\u548c20\u4e2a\u7c7b\u522b\u7f6e\u4fe1\u5ea6\u3002\u9996\u5148\uff0c\u5148\u8bf4\u4e00\u4e0b\u6bcf\u4e2abbox\u76845\u4e2a\u53c2\u6570\u7684\u542b\u4e49\u3002<\/p>\n\n\n\n<p>\u7531\u4e8eYOLOv1\u662f\u53bb\u9884\u6d4b\u7269\u4f53\u7684\u4e2d\u5fc3\u70b9\uff0c\u5e76\u7ed9\u51fa\u77e9\u5f62\u6846\uff0c\u56e0\u6b64\uff0c\u5305\u542b\u4e2d\u5fc3\u70b9\u7684\u7f51\u683c\uff0c\u6211\u4eec\u8ba4\u4e3a\u8fd9\u91cc\u662f\u6709\u7269\u4f53\u7684\uff0c\u5373\u8fd9\u4e00\u7f51\u683c\u7684objectness\u7684\u6982\u7387\u4e3a1\uff1a&nbsp;<img decoding=\"async\" class=\"lazyload\"data-src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_png\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXaicYphTIanwvmQv7cpsjdzrcNbZaFb1P4Zb6HRGibiaYxYZds8TRFria2eQ\/640?wx_fmt=png&amp;from=appmsg&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=6\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\u56fe\u7247\"><noscript><img decoding=\"async\" src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_png\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXaicYphTIanwvmQv7cpsjdzrcNbZaFb1P4Zb6HRGibiaYxYZds8TRFria2eQ\/640?wx_fmt=png&amp;from=appmsg&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=6\" alt=\"\u56fe\u7247\"><\/noscript>&nbsp;\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"614\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060742206.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6765 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060742206.jpg 616w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060742206-300x300.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060742206-150x150.jpg 150w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"614\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060742206.jpg\" alt=\"\" class=\"wp-image-6765\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060742206.jpg 616w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060742206-300x300.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060742206-150x150.jpg 150w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u9ec4\u989c\u8272\u4ee3\u8868\u8fd9\u4e2a\u7f51\u683c\u6709\u7269\u4f53\uff0c<img decoding=\"async\" class=\"lazyload\"data-src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_png\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXaicYphTIanwvmQv7cpsjdzrcNbZaFb1P4Zb6HRGibiaYxYZds8TRFria2eQ\/640?wx_fmt=png&amp;from=appmsg&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=8\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\u56fe\u7247\"><noscript><img decoding=\"async\" src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_png\/0l8e8dYXFXYWqfkzlhaRhVASuksD3xXaicYphTIanwvmQv7cpsjdzrcNbZaFb1P4Zb6HRGibiaYxYZds8TRFria2eQ\/640?wx_fmt=png&amp;from=appmsg&amp;tp=wxpic&amp;wxfrom=5&amp;wx_lazy=1#imgIndex=8\" alt=\"\u56fe\u7247\"><\/noscript>&nbsp;\u4e5f\u5c31\u610f\u5473\u7740\uff0c\u7269\u4f53\u7684\u4e2d\u5fc3\u70b9\u843d\u5728\u4e86\u8fd9\u4e2a\u7f51\u683c\u4e2d\uff0c\u90a3\u4e48\uff0c\u8fd9\u4e2a\u7f51\u683c\u5c31\u4f1a\u88ab\u6807\u8bb0\u4e3a\u4e00\u4e2a\u201c\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\u201d\uff0c\u5373\u8fd9\u4e2a\u6807\u7b7e\u7684\u6b63\u6837\u672c\u53ea\u4f1a\u6765\u6e90\u4e8e\u8fd9\u4e2a\u7f51\u683c\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5728\u8fd9\u91cc\u6682\u505c\u4e00\u4e0b\uff0c\u6839\u636e\u4e00\u4e9b\u8bfb\u7740\u7684\u53cd\u9988\uff0c\u5927\u5bb6\u90fd\u4f1a\u95ee\u6d4b\u8bd5\u9636\u6bb5\u600e\u4e48\u77e5\u9053Pr(objectness)\u662f0\u8fd8\u662f1\u3002\u8fd9\u91cc\u9700\u8981\u505a\u4e2a\u89e3\u91ca\uff1a<\/p>\n<\/blockquote>\n\n\n\n<p>\u8bba\u6587\u4e2d\u6240\u8bf4\u7684Pr(objectness)=1\uff0c\u4ee5\u73b0\u5728\u7684\u6280\u672f\u89d2\u5ea6\u6765\u770b\uff0c\u5c31\u662f\u6307\u201c\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\u201d\u3002<\/p>\n\n\n\n<p>\u9996\u5148\u8981\u6e05\u695a\u4e00\u70b9\uff0cYOLO\u4e00\u5171\u6709\u4e09\u4e2a\u9884\u6d4b\uff1aobjectness\u3001class\u3001bbox\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5176\u4e2d\uff0cobjectness\u662f\u4e00\u4e2a\u4e8c\u5206\u7c7b\uff0c\u5373\u6709\u7269\u4f53\u8fd8\u662f\u65e0\u7269\u4f53\uff0c\u4e5f\u5c31\u662f\u201c\u8fb9\u754c\u6846\u7684\u7f6e\u4fe1\u5ea6\u201d\uff0c\u5bf9\u5e94loss\u51fd\u6570\u4e2d\u7684\u90a3\u4e2a\u201cC\u201d\uff0c\u6ca1\u7269\u4f53\u7684\u6807\u7b7e\u663e\u7136\u5c31\u662f0\uff0c\u800c\u6709\u7269\u4f53\u7684\u6807\u7b7e\u53ef\u4ee5\u76f4\u63a5\u7ed91\uff0c\u4e5f\u53ef\u4ee5\u8ba1\u7b97\u5f53\u524d\u9884\u6d4b\u7684bbox\u4e0egt\u4e4b\u95f4\u7684IoU\u4f5c\u4e3a\u6709\u7269\u4f53\u7684\u6807\u7b7e\uff0c\u8fd9\u4e00\u70b9\u4e5f\u662fYOLOv1\u6240\u91c7\u53d6\u7684\u7b56\u7565\uff0c\u4e5f\u662f\u540e\u6765\u7684\u6240\u8c13\u7684\u201cIoU-aware\u201d\u6280\u672f\uff1b<\/li>\n\n\n\n<li>class\u5c31\u662f\u7c7b\u522b\u9884\u6d4b\uff0c<strong>\u53ea\u6709\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\u4e2d\u7684\u9884\u6d4b\u6846\u624d\u6709\u53ef\u80fd\u4f1a\u88ab\u8bad\u7ec3<\/strong>\uff0c\u4e5f\u5c31\u662fPr(objectness)=1\u7684\u5730\u65b9\uff0c\u6ce8\u610f\uff0c\u8fd9\u4e2aPr(objectness)=1\u5c31\u662f\u6307\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\uff0c\u548cIoU\u6ca1\u5173\uff0c\u548cYOLO\u6ca1\u5173\uff0c\u53ea\u548clabel\u6709\u5173\uff0c\u56e0\u4e3agt box\u7684\u4e2d\u5fc3\u70b9\u843d\u5728\u54ea\u4e2agrid\uff0c\u54ea\u4e2agrid\u5c31\u662f\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\uff0c\u4e5f\u5c31\u662fPr(objectness)=1\u3002<\/li>\n\n\n\n<li>\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\u7684\u4f5c\u7528\u5c31\u662f\u544a\u77e5\u6211\u4eec\uff1a\u8be5\u6807\u7b7e\u7684\u6b63\u6837\u672c\u53ea\u4f1a\u6765\u6e90\u4e8e\u6b64\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7ee7\u7eed\u767d\u8bdd<\/p>\n<\/blockquote>\n\n\n\n<p>\u7b80\u5355\u6765\u8bf4\uff0c\u53ef\u4ee5\u628a YOLOv1 \u7684\u5de5\u4f5c\u65b9\u5f0f\u60f3\u8c61\u6210\uff1a<strong>\u8ba9\u4e00\u5f20\u7f51\u683c\u7eb8\u53bb\u201c\u770b\u56fe\u8bf4\u8bdd\u201d<\/strong>\u3002\u4e0b\u9762\u6211\u4eec\u4e00\u6b65\u6b65\u62c6\u89e3\u8fd9\u4e2a\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\udde0 \u4e00\u3001\u6838\u5fc3\u601d\u60f3\uff1a\u7f51\u683c\u7eb8\u6e38\u620f<\/p>\n<\/blockquote>\n\n\n\n<p>YOLOv1 \u4f1a\u5c06\u4e00\u5f20\u8f93\u5165\u56fe\u7247\u5212\u5206\u6210&nbsp;<code>7\u00d77<\/code>&nbsp;\u7684\u7f51\u683c\uff08\u5c31\u50cf\u4e00\u5f20\u7f51\u683c\u7eb8\uff09\u3002<strong>\u6bcf\u4e2a\u5c0f\u683c\u5b50\uff08Grid Cell\uff09\u90fd\u662f\u4e00\u4e2a\u201c\u5c0f\u4fa6\u63a2\u201d<\/strong>\uff0c\u5b83\u7684\u4efb\u52a1\u662f\u6c47\u62a5\u4e09\u4ef6\u4e8b\u60c5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Objectness\uff08\u6709\u6ca1\u6709\u4e1c\u897f\uff1f\uff09<\/strong>\uff1a\u6211\u8fd9\u4e2a\u683c\u5b50\u91cc<strong>\u6709\u6ca1\u6709<\/strong>\u4e00\u4e2a\u7269\u4f53\u7684\u4e2d\u5fc3\u70b9\uff1f<\/li>\n\n\n\n<li><strong>Class\uff08\u662f\u4ec0\u4e48\u4e1c\u897f\uff1f\uff09<\/strong>\uff1a\u5982\u679c\u6709\u4e2a\u4e1c\u897f\uff0c\u90a3\u5b83\u6700\u53ef\u80fd\u662f20\u7c7b\u7269\u4f53\u4e2d\u7684\u54ea\u4e00\u7c7b\uff08\u6bd4\u5982\u72d7\u3001\u8f66\u3001\u4eba\uff09\uff1f<\/li>\n\n\n\n<li><strong>Bbox\uff08\u4e1c\u897f\u5728\u54ea\uff0c\u591a\u5927\uff1f\uff09<\/strong>\uff1a\u5982\u679c\u6709\u4e2a\u4e1c\u897f\uff0c\u90a3\u6211\u9884\u6d4b\u7684<strong>\u6846<\/strong>\u5e94\u8be5\u753b\u5728\u54ea\u624d\u80fd\u628a\u5b83\u6846\u51c6\uff1f<\/li>\n<\/ol>\n\n\n\n<p>\u6bcf\u4e2a\u201c\u5c0f\u4fa6\u63a2\u201d\uff08\u7f51\u683c\uff09\u90fd\u4f1a\u8f93\u51fa\u4e00\u4e2a\u5305\u542b30\u4e2a\u6570\u5b57\u7684\u62a5\u544a\uff0c\u8fd930\u4e2a\u6570\u5b57\u5c31\u5c01\u88c5\u4e86\u4ee5\u4e0a\u4e09\u65b9\u9762\u7684\u4fe1\u606f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfaf \u4e8c\u3001\u8c01\u662f\u201c\u5929\u9009\u4e4b\u5b50\u201d\uff1f\u2014\u2014\u6b63\u6837\u672c\u5019\u9009\u533a\u57df<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u662f\u4f60\u6700\u5173\u5fc3\u7684\u6838\u5fc3\u3002<strong>\u201c\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\u201d\u662f\u4e00\u4e2a\u975e\u5e38\u201c\u9738\u9053\u201d\u7684\u89c4\u5219<\/strong>\uff0c\u5b83\u5b8c\u5168\u7531\u4eba\u5de5\u6807\u6ce8\u7684<strong>\u771f\u5b9e\u6846\uff08Ground Truth, GT\uff09<\/strong>&nbsp;\u51b3\u5b9a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u89c4\u5219<\/strong>\uff1a<strong>\u53ea\u8981\u67d0\u4e2a\u7269\u4f53\u7684\u4e2d\u5fc3\u70b9\u843d\u5728\u4e86\u67d0\u4e2a\u683c\u5b50\u91cc\uff0c\u90a3\u4e48\u8fd9\u4e2a\u683c\u5b50\u5c31\u88ab\u6807\u8bb0\u4e3a\u201c\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\u201d<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u6807\u5fd7<\/strong>\uff1a\u5bf9\u4e8e\u8fd9\u4e2a\u683c\u5b50\u6765\u8bf4\uff0c<code>Pr(Objectness) = 1<\/code>\u3002\u8fd9<strong>\u4e0d\u662f\u4e00\u4e2a\u9884\u6d4b\u503c\uff0c\u800c\u662f\u4e00\u4e2a\u94c1\u5f8b<\/strong>\uff0c\u662f\u8bad\u7ec3\u65f6\u6211\u4eec\u544a\u8bc9\u7f51\u7edc\u7684\uff1a\u201c<strong>\u563f\uff0c\u8fd9\u4e2a\u683c\u5b50\u5fc5\u987b\u6709\u70b9\u4e1c\u897f\uff0c\u4f60\u7ed9\u6211\u597d\u597d\u5b66\uff01<\/strong>\u201d<\/li>\n\n\n\n<li><strong>\u8d23\u4efb<\/strong>\uff1a\u88ab\u9009\u4e2d\u7684\u201c\u6b63\u6837\u672c\u201d\u683c\u5b50\u8d23\u4efb\u91cd\u5927\uff0c\u5b83\u9700\u8981\u52aa\u529b\u5730\u53bb\u9884\u6d4b\u51fa\u6b63\u786e\u7684\u7c7b\u522b\uff08Class\uff09\u548c\u51c6\u786e\u7684\u8fb9\u754c\u6846\uff08Bbox\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u975e\u5e38\u91cd\u8981\u7684\u4e00\u70b9<\/strong>\uff1a<code>Pr(Objectness)=1<\/code>&nbsp;\u8fd9\u4e2a\u6807\u7b7e<strong>\u548c\u7f51\u7edc\u9884\u6d4b\u5f97\u51c6\u4e0d\u51c6\u3001\u6846\u7684IoU\u9ad8\u4e0d\u9ad8\uff0c\u5728\u6b64\u65f6\u5b8c\u5168\u6ca1\u6709\u5173\u7cfb<\/strong>\u3002\u5b83\u4ec5\u4ec5\u662f\u4e00\u4e2a\u201c\u8d23\u4efb\u5206\u914d\u201d\u7684\u5f00\u5173\uff0c\u544a\u8bc9\u4f60\u54ea\u4e2a\u683c\u5b50\u9700\u8981\u88ab\u91cd\u70b9\u5173\u7167\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"614\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060750319.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6766 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060750319.jpg 616w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060750319-300x300.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060750319-150x150.jpg 150w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"614\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060750319.jpg\" alt=\"\" class=\"wp-image-6766\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060750319.jpg 616w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060750319-300x300.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060750319-150x150.jpg 150w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><\/noscript><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2696\ufe0f \u4e09\u3001Objectness \u7684\u201c\u53cc\u91cd\u4eba\u683c\u201d<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u662f\u6700\u5bb9\u6613\u6df7\u6dc6\u7684\u5730\u65b9\u3002<code>Objectness<\/code>&nbsp;\u5728<strong>\u8bad\u7ec3<\/strong>\u548c<strong>\u63a8\u7406<\/strong>\u65f6\uff0c\u626e\u6f14\u7684\u89d2\u8272\u5b8c\u5168\u4e0d\u540c\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol class=\"wp-block-list\">\n<li>\u8bad\u7ec3\u9636\u6bb5\uff08\u8001\u5e08\u6559\u5b66\u751f\uff09<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u5728\u8bad\u7ec3\u65f6\uff0c\u6211\u4eec\u6709\u6807\u51c6\u7b54\u6848\uff08GT\u6846\uff09\u3002\u5bf9\u4e8e\u201c\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\u201d\uff08<code>Pr(Objectness)=1<\/code>&nbsp;\u7684\u683c\u5b50\uff09\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7f51\u7edc\u4f1a\u9884\u6d4b\u51fa2\u4e2a\u8fb9\u754c\u6846\uff08Bbox\uff09\u3002<\/li>\n\n\n\n<li>\u8001\u5e08\u4f1a\u8ba1\u7b97\u8fd9\u4e24\u4e2a\u9884\u6d4b\u6846\u548c\u771f\u5b9e\u6846\u7684<strong>IoU\uff08\u4ea4\u5e76\u6bd4\uff09<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u4e0e\u771f\u5b9e\u6846IoU\u66f4\u5927\u7684\u90a3\u4e2a\u9884\u6d4b\u6846\uff0c\u4f1a\u88ab\u9009\u4e2d\u4f5c\u4e3a\u201c\u8d1f\u8d23\u201d\u7684\u6846<\/strong>\u3002<\/li>\n\n\n\n<li>\u63a5\u7740\uff0c<strong>\u8001\u5e08\u4e0d\u4f1a\u7b80\u5355\u5730\u628a\u8fd9\u4e2a\u6846\u7684Objectness\u6807\u7b7e\u8bbe\u4e3a1\uff0c\u800c\u662f\u8bbe\u4e3a\u5176\u9884\u6d4b\u6846\u4e0e\u771f\u5b9e\u6846\u7684IoU\u503c<\/strong>\uff08\u6bd4\u59820.9\u30010.8\uff09\u3002\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u00a0<strong>\u201cIoU-aware\u201d\u6280\u672f<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u8fd9\u6837\u505a\u7684\u5999\u5904<\/strong>\uff1a\u8ba9\u7f51\u7edc\u9884\u6d4b\u7684\u7f6e\u4fe1\u5ea6\u4e0d\u4ec5\u80fd\u53cd\u6620\u201c\u6709\u6ca1\u6709\u7269\u4f53\u201d\uff0c\u8fd8\u80fd<strong>\u81ea\u6211\u8bc4\u4ef7\u6846\u7684\u8d28\u91cf\u597d\u574f<\/strong>\u3002\u9884\u6d4b\u5f97\u8d8a\u51c6\uff0c\u7f6e\u4fe1\u5ea6\u5c31\u5e94\u8be5\u8d8a\u9ad8\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u7b80\u5355\u8bf4\uff1a\u8bad\u7ec3\u65f6\uff0c\u6b63\u6837\u672c\u7684Objectness\u6807\u7b7e = \u9884\u6d4b\u6846\u4e0e\u771f\u5b9e\u6846\u7684IoU\u503c\u3002<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u63a8\u7406\u9636\u6bb5\uff08\u5b66\u751f\u81ea\u5df1\u8003\u8bd5\uff09<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u5728\u68c0\u6d4b\u65b0\u56fe\u7247\u65f6\uff0c\u6ca1\u6709\u6807\u51c6\u7b54\u6848\u4e86\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7f51\u7edc\u4f1a\u76f4\u63a5\u8f93\u51fa\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u503c\uff0c\u4f5c\u4e3a<code>Objectness<\/code>\u7684<strong>\u9884\u6d4b\u503c<\/strong>\u3002<\/li>\n\n\n\n<li>\u8fd9\u4e2a\u503c<strong>\u540c\u65f6\u8574\u542b\u4e86\u201c\u6709\u65e0\u7269\u4f53\u201d\u548c\u201c\u6846\u7684\u8d28\u91cf\u201d\u4e24\u5c42\u4fe1\u606f<\/strong>\uff08\u56e0\u4e3a\u5728\u8bad\u7ec3\u65f6\u5b83\u5c31\u88ab\u5982\u6b64\u6559\u5bfc\uff09\u3002<\/li>\n\n\n\n<li>\u6211\u4eec\u4f1a\u7528\u8fd9\u4e2a\u9884\u6d4b\u503c\u53bb\u5224\u65ad\u4e00\u4e2a\u6846\u662f\u5426\u53ef\u9760\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udce6 \u56db\u3001\u4e09\u8005\u5982\u4f55\u534f\u540c\u5de5\u4f5c\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u6700\u540e\uff0c\u6211\u4eec\u6765\u770b\u770b\u5728\u63a8\u7406\u65f6\uff0cYOLOv1 \u5982\u4f55\u7ed9\u51fa\u4e00\u4e2a\u6700\u7ec8\u7684\u3001\u5e26\u7f6e\u4fe1\u5ea6\u7684\u68c0\u6d4b\u7ed3\u679c\uff1a<\/p>\n\n\n\n<p><strong>\u6700\u7ec8\u7f6e\u4fe1\u5ea6\u5206\u6570 = Objectness\u9884\u6d4b\u503c \u00d7 \u6700\u5927\u7c7b\u522b\u6982\u7387<\/strong><\/p>\n\n\n\n<p><strong>\u4e3e\u4e2a\u4f8b\u5b50\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u67d0\u4e2a\u683c\u5b50\u9884\u6d4b\uff1a<code>Objectness = 0.9<\/code>\uff08\u5f88\u6709\u628a\u63e1\u8fd9\u91cc\u6709\u4e2a\u4e1c\u897f\u4e14\u6846\u5f97\u51c6\uff09<\/li>\n\n\n\n<li>\u5b83\u7684\u7c7b\u522b\u6982\u7387\u5206\u522b\u662f\uff1a<code>[\u72d7: 0.8, \u732b: 0.1, \u8f66: 0.1]<\/code><\/li>\n\n\n\n<li><strong>\u90a3\u4e48\u8fd9\u4e2a\u8fb9\u754c\u6846\u7684\u6700\u7ec8\u5f97\u5206\u5c31\u662f\uff1a<code>0.9 \u00d7 0.8 = 0.72<\/code><\/strong><\/li>\n\n\n\n<li>\u8fd9\u4e2a0.72\u5c31\u4ee3\u8868\u6a21\u578b\u7efc\u5408\u5224\u65ad\u201c\u8fd9\u91cc\u6709\u4e00\u53ea\u72d7\u201d\u7684\u603b\u4f53\u7f6e\u4fe1\u5ea6\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udc8e \u603b\u7ed3\u4e0e\u7c7b\u6bd4<\/p>\n<\/blockquote>\n\n\n\n<p>\u505a\u4e00\u4e2a\u6700\u7ec8\u7684\u603b\u7ed3\u5bf9\u6bd4\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9884\u6d4b\u8f93\u51fa<\/th><th>\u901a\u4fd7\u89e3\u91ca<\/th><th>\u4e0e\u201c\u6b63\u6837\u672c\u201d\u7684\u5173\u7cfb<\/th><th>\u5728\u8bad\u7ec3\u548c\u63a8\u7406\u4e2d\u7684\u89d2\u8272<\/th><\/tr><\/thead><tbody><tr><td><strong>Objectness (\u7f6e\u4fe1\u5ea6)<\/strong><\/td><td><strong>\u201c\u6846\u7684\u8d28\u91cf\u62a5\u544a\u201d<\/strong><\/td><td><strong>\u6b63\u6837\u672c\u7684\u6807\u7b7e\u662f1<\/strong>\uff0c\u4f46\u5b66\u4e60\u76ee\u6807\u662f<strong>IoU\u503c<\/strong>\u3002<\/td><td><strong>\u8bad\u7ec3<\/strong>\uff1a\u5b66\u4e60\u76ee\u6807\uff08\u6807\u7b7e\u662fIoU\uff09\u3002<br><strong>\u63a8\u7406<\/strong>\uff1a\u9884\u6d4b\u7ed3\u679c\uff08\u7528\u4e8e\u7b5b\u9009\u6846\uff09\u3002<\/td><\/tr><tr><td><strong>Class (\u7c7b\u522b)<\/strong><\/td><td><strong>\u201c\u7269\u54c1\u8bc6\u522b\u62a5\u544a\u201d<\/strong><\/td><td><strong>\u53ea\u6709\u6b63\u6837\u672c<\/strong>\u624d\u9700\u8981\u5b66\u4e60\u548c\u9884\u6d4b\u7c7b\u522b\u3002<\/td><td><strong>\u8bad\u7ec3<\/strong>\uff1a\u5b66\u4e60\u76ee\u6807\uff08\u6807\u7b7e\u662fone-hot\uff09\u3002<br><strong>\u63a8\u7406<\/strong>\uff1a\u9884\u6d4b\u7ed3\u679c\uff08\u662f\u4ec0\u4e48\u4e1c\u897f\uff09\u3002<\/td><\/tr><tr><td><strong>Bbox (\u8fb9\u754c\u6846)<\/strong><\/td><td><strong>\u201c\u753b\u6846\u65b9\u6848\u201d<\/strong><\/td><td><strong>\u6b63\u6837\u672c<\/strong>\u4e2dIoU\u6700\u5927\u7684\u90a3\u4e2a\u6846\u8d1f\u8d23\u5b66\u4e60\u753b\u6846\u3002<\/td><td><strong>\u8bad\u7ec3<\/strong>\uff1a\u5b66\u4e60\u76ee\u6807\uff08\u6807\u7b7e\u662f\u6846\u5750\u6807\uff09\u3002<br><strong>\u63a8\u7406<\/strong>\uff1a\u9884\u6d4b\u7ed3\u679c\uff08\u6846\u7684\u4f4d\u7f6e\uff09\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5728\u63a8\u7406\uff08inference\uff09\u9636\u6bb5\uff0cYOLO\u4e00\u5171\u8f93\u51fa\u4e09\u4e2a\u9884\u6d4b\uff0c\u662f\u5426\u6709\u7269\u4f53\u7684objectness\u9884\u6d4b\u3001class\u9884\u6d4b\u548cbbox\u9884\u6d4b\u3002<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u6211\u4eec\u6839\u636e\u9884\u6d4b\u7684\u8ba1\u7b97score=objectness * class \u4f5c\u4e3a\u6bcf\u4e2a\u8fb9\u754c\u6846\u7684\u5f97\u5206score\uff0c\u8fd9\u4e2ascore\u4e5f\u5c31\u662f\u8fb9\u754c\u6846\u7684\u7f6e\u4fe1\u5ea6confidence\uff0c\u8bba\u6587\u4e2d\u7ed9\u51fa\u7684\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"685\" height=\"56\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060800777.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6767 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060800777.png 685w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060800777-300x25.png 300w\" sizes=\"auto, (max-width: 685px) 100vw, 685px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"685\" height=\"56\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060800777.png\" alt=\"\" class=\"wp-image-6767\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060800777.png 685w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060800777-300x25.png 300w\" sizes=\"auto, (max-width: 685px) 100vw, 685px\" \/><\/noscript><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5148\u6765\u8bf4\u8bf4\u8fd9\u4e2a\u516c\u5f0f\uff1a\u5982\u4f55\u7efc\u5408\u8bc4\u4ef7\u4e00\u4e2a\u9884\u6d4b\u6846\u7684\u597d\u574f<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\udde0 \u516c\u5f0f\u7684\u76f4\u89c2\u7406\u89e3<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u4e2a\u516c\u5f0f\u7684\u76ee\u7684\u662f\u8ba1\u7b97YOLOv1\u8f93\u51fa\u7684\u6bcf\u4e2a\u8fb9\u754c\u6846\uff08Bounding Box\uff09\u7684<strong>\u6700\u7ec8\u7f6e\u4fe1\u5ea6\u5206\u6570\uff08Final Confidence Score\uff09<\/strong>\u3002\u8fd9\u4e2a\u5206\u6570\u540c\u65f6\u8861\u91cf\u4e86&nbsp;<strong>\u201c\u662f\u4ec0\u4e48\u201d<\/strong>&nbsp;\u548c&nbsp;<strong>\u201c\u6846\u5f97\u6709\u591a\u51c6\u201d<\/strong>&nbsp;\u4e24\u4e2a\u65b9\u9762\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u628a\u5b83\u62c6\u89e3\u6210\u4e09\u90e8\u5206\u6765\u7406\u89e3\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong><code>Pr(Object)<\/code><\/strong>\uff1a\u8fd9\u662f\u201c\u7269\u4f53\u5b58\u5728\u6982\u7387\u201d\u3002\u5b83\u53ea\u56de\u7b54\u4e00\u4e2a\u7b80\u5355\u7684\u95ee\u9898\uff1a<strong>\u8fd9\u4e2a\u6846\u91cc\u6709\u6ca1\u6709\u7269\u4f53\uff1f<\/strong>\u00a0\u5b83\u662f\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u503c\uff0c\u503c\u8d8a\u9ad8\uff0c\u8868\u793a\u7f51\u7edc\u8d8a\u786e\u4fe1\u8fd9\u91cc\u6709\u4e2a\u4e1c\u897f\u3002<\/li>\n\n\n\n<li><strong><code>IOU_pred^truth<\/code><\/strong>\uff1a\u8fd9\u662f\u201c\u5b9a\u4f4d\u7cbe\u5ea6\u201d\u3002\u5b83\u8ba1\u7b97\u7684\u662f<strong>\u9884\u6d4b\u7684\u6846<\/strong>\u548c<strong>\u771f\u5b9e\u7684\u6846<\/strong>\u4e4b\u95f4\u7684\u4ea4\u5e76\u6bd4\uff08IoU\uff09\u3002IoU\u8d8a\u9ad8\uff0c\u8bf4\u660e\u4f60\u9884\u6d4b\u7684\u6846\u548c\u771f\u5b9e\u4f4d\u7f6e\u91cd\u5408\u5f97\u8d8a\u597d\uff0c\u6846\u5f97\u8d8a\u51c6\u3002\u5b83\u7684\u503c\u4e5f\u57280\u52301\u4e4b\u95f4\u3002<\/li>\n\n\n\n<li><strong><code>Pr(Class_i | Object)<\/code><\/strong>\uff1a\u8fd9\u662f\u201c\u6761\u4ef6\u7c7b\u522b\u6982\u7387\u201d\u3002\u5b83\u7684\u610f\u601d\u662f\uff1a<strong>\u5728\u5df2\u7ecf\u786e\u5b9a\u8fd9\u91cc\u6709\u7269\u4f53\u7684\u524d\u63d0\u4e0b\uff0c\u8fd9\u4e2a\u7269\u4f53\u662f\u7b2c\u00a0<code>i<\/code>\u00a0\u7c7b\uff08\u6bd4\u5982\u201c\u72d7\u201d\u6216\u201c\u81ea\u884c\u8f66\u201d\uff09\u7684\u6982\u7387\u662f\u591a\u5c11\uff1f<\/strong><\/li>\n<\/ol>\n\n\n\n<p><strong>\u516c\u5f0f\u7684\u5999\u5904\u5728\u4e8e\uff1a\u5b83\u5c06\u8fd9\u4e09\u8005\u76f8\u4e58\u3002<\/strong>\u4e00\u4e2a\u5b8c\u7f8e\u7684\u9884\u6d4b\u6846\u5e94\u8be5\u540c\u65f6\u6ee1\u8db3\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u786e\u4fe1\u6709\u7269\u4f53<\/strong>\u00a0(<code>Pr(Object) \u2248 1<\/code>)<\/li>\n\n\n\n<li><strong>\u6846\u5f97\u975e\u5e38\u51c6<\/strong>\u00a0(<code>IOU_pred^truth \u2248 1<\/code>)<\/li>\n\n\n\n<li><strong>\u7c7b\u522b\u5224\u65ad\u51c6\u786e<\/strong>\u00a0(<code>Pr(Class_i | Object) \u2248 1<\/code>)<\/li>\n<\/ul>\n\n\n\n<p>\u4e09\u8005\u76f8\u4e58\uff0c\u6700\u7ec8\u5f97\u5206\u5c31\u63a5\u8fd1&nbsp;<code>1<\/code>\u3002\u53cd\u4e4b\uff0c\u4efb\u4f55\u4e00\u9879\u5f97\u5206\u4f4e\uff0c\u90fd\u4f1a\u5bfc\u81f4\u6700\u7ec8\u5f97\u5206\u5f88\u4f4e\u3002\u8fd9\u975e\u5e38\u7b26\u5408\u6211\u4eec\u7684\u76f4\u89c9\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2696\ufe0f \u8bad\u7ec3 vs. \u63a8\u7406\uff1a\u516c\u5f0f\u7684\u4e0d\u540c\u89d2\u8272<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol class=\"wp-block-list\">\n<li>\u8bad\u7ec3\u9636\u6bb5\uff08\u6709\u53c2\u8003\u7b54\u6848\uff09<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u5728\u8bad\u7ec3\u65f6\uff0c\u6211\u4eec\u6709\u6807\u6ce8\u597d\u7684\u771f\u5b9e\u6846\uff08Ground Truth\uff09\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5<strong>\u8ba1\u7b97<\/strong>\u51fa&nbsp;<code>IOU_pred^truth<\/code>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5bf9\u4e8e\u6b63\u6837\u672c\uff08\u5305\u542b\u7269\u4f53\u4e2d\u5fc3\u7684\u683c\u5b50\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><code>Pr(Object)<\/code>\u00a0\u7684\u6807\u7b7e\u88ab\u56fa\u5b9a\u4e3a\u00a0<code>1<\/code>\u3002<\/li>\n\n\n\n<li><code>IOU_pred^truth<\/code>\u00a0\u662f\u8ba1\u7b97\u51fa\u6765\u7684\uff08\u9884\u6d4b\u6846\u548c\u771f\u5b9e\u6846\u7684IoU\uff09\u3002<\/li>\n\n\n\n<li>\u56e0\u6b64\uff0c<code>Pr(Object) * IOU_pred^truth<\/code>\u00a0\u6574\u4f53\u4f5c\u4e3a\u4e00\u4e2a\u660e\u786e\u7684<strong>\u5b66\u4e60\u76ee\u6807<\/strong>\uff0c\u544a\u8bc9\u7f51\u7edc\uff1a\u201c\u4f60\u9884\u6d4b\u7684\u8fd9\u4e2a\u6846\uff0c\u7f6e\u4fe1\u5ea6\u5e94\u8be5\u5411\u8fd9\u4e2aIoU\u503c\u770b\u9f50\u3002\u201d<\/li>\n\n\n\n<li>\u8fd9\u8feb\u4f7f\u7f51\u7edc\u5b66\u4e60\u5230\uff1a<strong>\u7f6e\u4fe1\u5ea6\u4e0d\u4ec5\u8981\u53cd\u6620\u201c\u6709\u6ca1\u6709\u7269\u4f53\u201d\uff0c\u8fd8\u8981\u53cd\u6620\u201c\u6846\u7684\u8d28\u91cf\u597d\u4e0d\u597d\u201d<\/strong>\u3002\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u201cIoU-aware\u201d\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5bf9\u4e8e\u8d1f\u6837\u672c\uff08\u4e0d\u5305\u542b\u7269\u4f53\u7684\u683c\u5b50\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5b66\u4e60\u76ee\u6807\u76f4\u63a5\u662f\u00a0<code>0<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u63a8\u7406\u9636\u6bb5\uff08\u6ca1\u6709\u53c2\u8003\u7b54\u6848\uff09<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u5728\u63a8\u7406\u65f6\uff0c\u6ca1\u6709\u771f\u5b9e\u6846\u7ed9\u6211\u4eec\u8ba1\u7b97&nbsp;<code>IOU_pred^truth<\/code>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6b64\u65f6\uff0c\u516c\u5f0f\u5de6\u8fb9\u7684\u00a0<code>Pr(Object) * IOU_pred^truth<\/code>\u00a0\u8fd9\u4e2a\u6574\u4f53\uff0c<strong>\u4e0d\u518d\u662f\u4e00\u4e2a\u8ba1\u7b97\u76ee\u6807\uff0c\u800c\u662f\u7f51\u7edc\u76f4\u63a5\u9884\u6d4b\u51fa\u7684\u4e00\u4e2a\u503c<\/strong>\u2014\u2014\u5373Objectness\u5206\u652f\u7684\u8f93\u51fa\u503c\u3002<\/li>\n\n\n\n<li>\u7f51\u7edc\u5728\u8bad\u7ec3\u9636\u6bb5\u5df2\u7ecf\u5b66\u4f1a\u4e86\u5982\u4f55\u9884\u6d4b\u4e00\u4e2a\u65e2\u80fd\u4ee3\u8868\u201c\u6709\u65e0\u7269\u4f53\u201d\u53c8\u80fd\u4ee3\u8868\u201c\u6846\u7684\u8d28\u91cf\u201d\u7684\u7efc\u5408\u7f6e\u4fe1\u5ea6\u3002<\/li>\n\n\n\n<li>\u6240\u4ee5\u6211\u4eec\u76f4\u63a5\u4f7f\u7528\u7f51\u7edc\u9884\u6d4b\u7684\u00a0<code>Pr(Object) * IOU_pred^truth<\/code>\u00a0\u503c\uff0c\u518d\u4e58\u4e0a\u7c7b\u522b\u6982\u7387\u00a0<code>Pr(Class_i | Object)<\/code>\uff0c\u5c31\u5f97\u5230\u4e86\u6700\u7ec8\u7684\u7f6e\u4fe1\u5ea6\u5206\u6570\uff0c\u7528\u4e8e\u7b5b\u9009\u548c\u6392\u5e8f\u9884\u6d4b\u6846\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udc8e \u603b\u7ed3<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><\/th><th><strong>\u8bad\u7ec3\u9636\u6bb5 (Training)<\/strong><\/th><th><strong>\u63a8\u7406\u9636\u6bb5 (Inference)<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong><code>IOU_pred^truth<\/code><\/strong><\/td><td><strong>\u4e00\u4e2a\u5df2\u77e5\u7684\u8ba1\u7b97\u503c<\/strong>\uff08\u6839\u636e\u9884\u6d4b\u6846\u548c\u771f\u5b9e\u6846\u7b97\u51fa\uff09\uff0c\u7528\u4f5c\u8bad\u7ec3\u76ee\u6807\u3002<\/td><td><strong>\u4e00\u4e2a\u672a\u77e5\u7684\u91cf<\/strong>\uff0c\u4f46\u5176\u4f5c\u7528\u5df2\u878d\u5165\u7f51\u7edc\u7684\u9884\u6d4b\u80fd\u529b\u4e2d\u3002<\/td><\/tr><tr><td><strong><code>Pr(Object) * IOU_pred^truth<\/code><\/strong><\/td><td><strong>\u4e00\u4e2a\u6807\u7b7e\uff08\u76ee\u6807\u503c\uff09<\/strong>\uff0c\u7528\u4e8e\u6307\u5bfc\u7f51\u7edc\u5b66\u4e60\u3002<\/td><td><strong>\u4e00\u4e2a\u9884\u6d4b\u503c<\/strong>\uff0c\u7531\u7f51\u7edc\u76f4\u63a5\u8f93\u51fa\uff0c\u4f5c\u4e3a\u8fb9\u754c\u6846\u7684\u7f6e\u4fe1\u5ea6\u3002<\/td><\/tr><tr><td><strong>\u516c\u5f0f\u7684\u4f5c\u7528<\/strong><\/td><td><strong>\u5b9a\u4e49\u635f\u5931\u51fd\u6570<\/strong>\uff0c\u8ba9\u7f51\u7edc\u5b66\u4f1a\u9884\u6d4b\u51fa\u540c\u65f6\u5305\u542b\u7269\u4f53\u5b58\u5728\u6027\u548c\u6846\u8d28\u91cf\u7684\u7efc\u5408\u7f6e\u4fe1\u5ea6\u3002<\/td><td><strong>\u8ba1\u7b97\u6700\u7ec8\u5f97\u5206<\/strong>\uff0c\u7528\u4e8e\u8bc4\u4f30\u9884\u6d4b\u6846\u7684\u7efc\u5408\u8d28\u91cf\u5e76\u8fdb\u884c\u7b5b\u9009\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u7b80\u5355\u6765\u8bf4\uff0c\u8fd9\u4e2a\u516c\u5f0f\u5728<strong>\u8bad\u7ec3\u65f6\u662f\u201c\u8001\u5e08\u201d<\/strong>\uff0c\u7528\u6765\u6559\u5bfc\u7f51\u7edc\uff1b\u5728<strong>\u63a8\u7406\u65f6\u662f\u201c\u5b66\u751f\u201d<\/strong>\uff0c\u662f\u7f51\u7edc\u8f93\u51fa\u7684\u7b54\u6848\u3002\u5b83\u5b8c\u7f8e\u5730\u5c06\u5206\u7c7b\u51c6\u786e\u5ea6\uff08\u662f\u4ec0\u4e48\uff09\u548c\u5b9a\u4f4d\u7cbe\u5ea6\uff08\u6846\u5f97\u51c6\u4e0d\u51c6\uff09\u7edf\u4e00\u5230\u4e86\u4e00\u4e2a\u7efc\u5408\u7684\u8bc4\u5206\u91cc\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol class=\"wp-block-list\">\n<li>\u6838\u5fc3\u95ee\u9898\uff1a\u63a8\u7406\u9636\u6bb5\u5982\u4f55\u5f97\u5230 IoU\uff1f<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u56fe\u7247\u9996\u5148\u6307\u51fa\uff0c\u516c\u5f0f\u4e2d\u7684&nbsp;<strong><code>IOU_pred^truth<\/code><\/strong>&nbsp;\u7b26\u53f7\u6700\u5bb9\u6613\u5f15\u8d77\u6b67\u4e49\uff0c\u56e0\u4e3a<strong>\u5728\u63a8\u7406\uff08\u6d4b\u8bd5\uff09\u65f6\uff0c\u6ca1\u6709\u771f\u5b9e\u6846\uff08ground truth\uff09<\/strong>\uff0c\u65e0\u6cd5\u8ba1\u7b97\u8fd9\u4e2a\u503c\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u8bad\u7ec3\u9636\u6bb5\uff1a\u7f6e\u4fe1\u5ea6\u662f\u201c\u5b66\u4e60\u76ee\u6807\u201d<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u5728\u8bad\u7ec3\u9636\u6bb5\uff0c\u7f51\u7edc\u6709\u771f\u5b9e\u6807\u7b7e\u4f5c\u4e3a\u53c2\u8003\u7b54\u6848\uff0c\u7f6e\u4fe1\u5ea6\u7684\u4f5c\u7528\u662f<strong>\u4f5c\u4e3a\u6a21\u578b\u7684\u5b66\u4e60\u76ee\u6807<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b66\u4e60\u6807\u7b7e\u7684\u6784\u6210<\/strong>\uff1a\u5b8c\u6574\u7684\u7f6e\u4fe1\u5ea6\u6807\u7b7e =\u00a0<code>Pr(objectness) * IOU_pred^truth<\/code><\/li>\n\n\n\n<li><strong>\u6b63\u6837\u672c\uff08\u6709\u7269\u4f53\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><code>Pr(objectness) = 1<\/code><\/li>\n\n\n\n<li>\u6807\u7b7e\u503c\u5373\u4e3a\u9884\u6d4b\u6846\u4e0e\u771f\u5b9e\u6846\u7684\u00a0<strong><code>IOU_pred^truth<\/code><\/strong>\u00a0\uff08\u4ea4\u5e76\u6bd4\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8d1f\u6837\u672c\uff08\u65e0\u7269\u4f53\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><code>Pr(objectness) = 0<\/code><\/li>\n\n\n\n<li>\u6807\u7b7e\u503c\u76f4\u63a5\u4e3a\u00a0<strong><code>0<\/code><\/strong>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>\u5c0f\u7ed3<\/strong>\uff1a\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0cYOLOv1\u5728\u8bad\u7ec3\u65f6\u8ba9\u6a21\u578b\u5b66\u4f1a\u9884\u6d4b\u7684\u7f6e\u4fe1\u5ea6\u4e0d\u4ec5\u80fd\u53cd\u6620\u201c\u6709\u65e0\u7269\u4f53\u201d\uff0c\u8fd8\u80fd<strong>\u53cd\u6620\u201c\u6846\u5f97\u51c6\u4e0d\u51c6\u201d<\/strong>\uff08\u5373IoU\u7684\u9ad8\u4f4e\uff09\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u63a8\u7406\u9636\u6bb5\uff1a\u7f6e\u4fe1\u5ea6\u662f\u201c\u9884\u6d4b\u7ed3\u679c\u201d<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u5728\u63a8\u7406\u9636\u6bb5\uff0c\u6ca1\u6709\u771f\u5b9e\u6846\u6765\u8ba1\u7b97 IoU\u3002\u6b64\u65f6\uff0c\u7f51\u7edc\u8fd0\u7528\u4e86\u8bad\u7ec3\u597d\u7684\u80fd\u529b\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9884\u6d4b\u503c\u7684\u610f\u4e49<\/strong>\uff1a\u8bad\u7ec3\u597d\u7684\u6a21\u578b\uff0c\u5176\u00a0<strong><code>objectness<\/code>\u00a0\u5206\u652f\u7684\u76f4\u63a5\u8f93\u51fa\u503c<\/strong>\uff0c\u5c31\u7b49\u4ef7\u4e8e\u00a0<code>Pr(objectness) * IOU_pred^truth<\/code>\u00a0\u8fd9\u4e2a\u6574\u4f53\u3002<\/li>\n\n\n\n<li><strong>\u7f6e\u4fe1\u5ea6\u7684\u53cc\u91cd\u4f5c\u7528<\/strong>\uff1a\u8fd9\u4e2a\u9884\u6d4b\u51fa\u7684\u7f6e\u4fe1\u5ea6\u503c\u540c\u65f6\u4ee3\u8868\u4e24\u5c42\u542b\u4e49\uff1a\n<ol class=\"wp-block-list\">\n<li><strong>\u6709\u65e0\u7269\u4f53<\/strong>\uff1a\u8fdb\u884c\u524d\u666f\/\u80cc\u666f\u7684\u4e8c\u5206\u7c7b\u5224\u65ad\u3002<\/li>\n\n\n\n<li><strong>\u5b9a\u4f4d\u8d28\u91cf<\/strong>\uff1a\u5b9a\u91cf\u8bc4\u4ef7\u8fd9\u4e2a\u9884\u6d4b\u6846\u672c\u8eab\u7684\u8d28\u91cf\u597d\u574f\u3002<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>\u7406\u60f3\u60c5\u51b5<\/strong>\uff1a\u4e00\u4e2a\u5b8c\u7f8e\u7684\u9884\u6d4b\u6846\uff0c\u5176\u7f6e\u4fe1\u5ea6\u5e94\u4e3a\u00a0<code>1<\/code>\u3002\u8fd9\u8868\u793a\u5b83<strong>\u80af\u5b9a\u5305\u542b\u4e00\u4e2a\u7269\u4f53<\/strong>\uff08<code>Pr(objectness)=1<\/code>\uff09\uff0c\u5e76\u4e14<strong>\u6846\u7684\u4f4d\u7f6e\u6781\u5176\u7cbe\u51c6<\/strong>\uff08<code>IOU_pred^truth=1<\/code>\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol start=\"4\" class=\"wp-block-list\">\n<li>\u63a8\u7406\u6d41\u7a0b\uff1a\u4ece\u7f6e\u4fe1\u5ea6\u5230\u6700\u7ec8\u5f97\u5206<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u63a8\u7406\u9636\u6bb5\u7684\u5b9e\u9645\u64cd\u4f5c\u6d41\u7a0b\u548c\u6700\u7ec8\u8ba1\u7b97\u516c\u5f0f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8fc7\u6ee4\u80cc\u666f<\/strong>\uff1a\u8bbe\u5b9a\u4e00\u4e2a\u9608\u503c\uff08\u59820.5\uff09\u3002\u5c06<strong>\u7f6e\u4fe1\u5ea6<\/strong>\u4f4e\u4e8e\u6b64\u9608\u503c\u7684\u9884\u6d4b\u6846\u8fc7\u6ee4\u6389\uff0c\u89c6\u4e3a\u80cc\u666f\u3002<\/li>\n\n\n\n<li><strong>\u8ba1\u7b97\u6700\u7ec8\u5f97\u5206<\/strong>\uff1a\u5bf9\u4e8e\u4fdd\u7559\u4e0b\u6765\u7684\u9884\u6d4b\u6846\uff08\u524d\u666f\uff09\uff0c\u5176\u6700\u7ec8\u5f97\u5206\uff08<code>score<\/code>\uff09\u7531\u00a0<strong>\u7f6e\u4fe1\u5ea6<\/strong>\u00a0\u4e0e\u00a0<strong>\u7c7b\u522b\u6982\u7387<\/strong>\u00a0\u76f8\u4e58\u5f97\u5230\u3002\n<ul class=\"wp-block-list\">\n<li><strong>\u6700\u7ec8\u516c\u5f0f<\/strong>\uff1a<code>score = Pr(objectness) \u00d7 Pr(Class_i)<\/code><\/li>\n\n\n\n<li><strong>\u516c\u5f0f\u89e3\u8bfb<\/strong>\uff1a\u8fd9\u4e2a\u5f97\u5206\u7efc\u5408\u53cd\u6620\u4e86\u201c<strong>\u8fd9\u91cc\u6709\u4e00\u4e2a\u7269\u4f53<\/strong>\u201d\uff08\u7f6e\u4fe1\u5ea6\u9ad8\uff09\u4e14\u201c<strong>\u8fd9\u4e2a\u7269\u4f53\u662f\u67d0\u7c7b\u522b<\/strong>\u201d\uff08\u7c7b\u522b\u6982\u7387\u9ad8\uff09\u7684\u8054\u5408\u6982\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u603b\u7ed3<\/p>\n<\/blockquote>\n\n\n\n<p>\u6838\u5fc3\u601d\u60f3\u662f\u9610\u660e\u4e86&nbsp;<strong><code>IOU_pred^truth<\/code><\/strong>&nbsp;\u5728 YOLOv1 \u4e2d\u7684\u89d2\u8272\u8f6c\u53d8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8bad\u7ec3\u65f6<\/strong>\uff1a\u5b83\u662f\u4e00\u4e2a<strong>\u8ba1\u7b97\u51fa\u6765\u7684\u3001\u7528\u4e8e\u6307\u5bfc\u5b66\u4e60\u7684\u6807\u7b7e\u503c<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u63a8\u7406\u65f6<\/strong>\uff1a\u5b83\u7684\u7269\u7406\u610f\u4e49\u5df2\u7ecf<strong>\u878d\u5408\u8fdb\u7f51\u7edc\u6240\u9884\u6d4b\u7684\u7f6e\u4fe1\u5ea6\u503c\u4e4b\u4e2d<\/strong>\uff0c\u4e0d\u518d\u9700\u8981\u5355\u72ec\u8ba1\u7b97\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u79cd\u8bbe\u8ba1\u4f7f\u5f97\u6a21\u578b\u5728\u9884\u6d4b\u65f6\uff0c\u4ec5\u901a\u8fc7\u4e00\u4e2a\u7f6e\u4fe1\u5ea6\u503c\u5c31\u80fd\u540c\u65f6\u8868\u8fbe\u201c\u5b58\u5728\u6027\u201d\u548c\u201c\u7cbe\u786e\u6027\u201d\uff0c\u975e\u5e38\u5de7\u5999\u3002<\/p>\n\n\n\n<p>\u597d\u6ef4\uff01\u6211\u4eec\u7ee7\u7eed\u770b\u56fe\uff01<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"614\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060813987.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6768 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060813987.jpg 616w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060813987-300x300.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060813987-150x150.jpg 150w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"614\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060813987.jpg\" alt=\"\" class=\"wp-image-6768\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060813987.jpg 616w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060813987-300x300.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060813987-150x150.jpg 150w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u6ce8\u610f\u770b\u4e0a\u9762\u7684\u56fe\uff0c\u6211\u4eec\u4f1a\u53d1\u73b0\u8fd9\u4e2a\u4e2d\u5fc3\u70b9\u76f8\u5bf9\u4e8e\u5b83\u6240\u5728\u7684\u7f51\u683c\u7684\u56db\u8fb9\u662f\u6709\u504f\u8ddd\u7684\uff0c<strong>\u8fd9\u5176\u5b9e\u5c31\u662f\u7531\u4e8e\u964d\u91c7\u6837\u5e26\u6765\u7684\u91cf\u5316\u8bef\u5dee<\/strong>\uff0c\u56e0\u6b64\uff0c\u6211\u4eec\u53ea\u8981\u83b7\u5f97\u4e86\u8fd9\u4e2a\u91cf\u5316\u8bef\u5dee\uff0c\u5c31\u80fd\u83b7\u5f97\u4e2d\u5fc3\u70b9\u7684\u51c6\u786e\u5750\u6807\u4e86\uff0c\u90a3\u4e48YOLOv1\u4e2d\u662f\u600e\u4e48\u8ba1\u7b97\u8fd9\u4e2a\u91cf\u5316\u8bef\u5dee\u7684\u5462\uff1f<\/p>\n\n\n\n<p>\u6216\u8005\u8bf4YOLOv1\u5982\u4f55\u786e\u5b9a\u76ee\u6807\u4f4d\u7f6e\u7684\u6838\u5fc3\u539f\u7406\u2014\u2014<strong>\u5373\u5982\u4f55\u5c06\u56fe\u7247\u4e0a\u7684\u4e00\u4e2a\u771f\u5b9e\u6846\uff0c\u8f6c\u6362\u6210\u7f51\u7edc\u9700\u8981\u5b66\u4e60\u7684\u76ee\u6807\uff0c\u4ee5\u53ca\u7f51\u7edc\u9884\u6d4b\u51fa\u7684\u503c\u53c8\u5982\u4f55\u53d8\u56de\u6700\u7ec8\u7684\u6846\u3002<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\udded \u4e00\u3001\u6838\u5fc3\u601d\u60f3\uff1a\u4ece\u201c\u5730\u56fe\u7f51\u683c\u201d\u5230\u201c\u7cbe\u786e\u5b9a\u4f4d\u201d<\/p>\n<\/blockquote>\n\n\n\n<p>YOLOv1 \u76ee\u6807\u68c0\u6d4b\u7684\u6838\u5fc3\u521b\u65b0\u5728\u4e8e\uff0c\u5b83\u4e0d\u518d\u76f2\u76ee\u5730\u641c\u7d22\u56fe\u7247\uff0c\u800c\u662f\u91c7\u7528\u4e86\u4e00\u79cd\u201c<strong>\u7f51\u683c\u5316\u5b9a\u4f4d<\/strong>\u201d\u7684\u7b56\u7565\u3002\u4f60\u53ef\u4ee5\u5c06\u5176\u7406\u89e3\u4e3a\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7ed8\u5236\u5730\u56fe<\/strong>\uff1a\u5c06\u4e00\u5f20\u56fe\u7247\u5212\u5206\u4e3a\u00a0<code>S x S<\/code>\uff08\u4f8b\u5982\u00a0<code>7 x 7<\/code>\uff09\u7684\u7f51\u683c\uff0c\u5c31\u50cf\u4e00\u5f20\u57ce\u5e02\u5730\u56fe\u88ab\u5212\u5206\u6210\u4e0d\u540c\u7684\u8857\u533a\u3002<\/li>\n\n\n\n<li><strong>\u5206\u914d\u4efb\u52a1<\/strong>\uff1a\u6bcf\u4e2a\u7f51\u683c\uff08\u201c\u8857\u533a\u201d\uff09\u8d1f\u8d23\u9884\u6d4b\u4e2d\u5fc3\u70b9\u843d\u5728\u81ea\u5df1\u533a\u57df\u5185\u7684\u7269\u4f53\u3002<\/li>\n\n\n\n<li><strong>\u7cbe\u51c6\u5bfc\u822a<\/strong>\uff1a\u5bf9\u4e8e\u6709\u7269\u4f53\u7684\u7f51\u683c\uff0c\u7f51\u7edc\u4e0d\u4ec5\u8981\u77e5\u9053\u201c\u8fd9\u91cc\u6709\u4e1c\u897f\u201d\uff0c\u8fd8\u8981\u9884\u6d4b\u4e00\u4e2a<strong>\u7cbe\u7ec6\u7684\u504f\u79fb\u91cf<\/strong>\uff0c\u6765\u7cbe\u786e\u5b9a\u4f4d\u7269\u4f53\u4e2d\u5fc3\u70b9\u5728\u8fd9\u4e2a\u201c\u8857\u533a\u201d\u5185\u7684\u786e\u5207\u4f4d\u7f6e\u3002<\/li>\n<\/ol>\n\n\n\n<p><strong>\u201c\u5982\u4f55\u6839\u636e\u771f\u5b9e\u7269\u4f53\u7684\u5750\u6807\uff0c\u4e3a\u7f51\u7edc\u751f\u6210\u5b66\u4e60\u76ee\u6807\u201d<\/strong>&nbsp;\u4ee5\u53ca&nbsp;<strong>\u201c\u5982\u4f55\u4ece\u7f51\u7edc\u7684\u9884\u6d4b\u503c\uff0c\u53cd\u63a8\u51fa\u7269\u4f53\u7684\u771f\u5b9e\u5750\u6807\u201d<\/strong>&nbsp;\u7684\u5b8c\u6574\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udcd0 \u4e8c\u3001\u7b2c\u4e00\u6b65\uff1a\u786e\u5b9a\u201c\u76ee\u6807\u8857\u533a\u201d\uff08\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\uff09<\/p>\n<\/blockquote>\n\n\n\n<p>\u9996\u5148\uff0c\u6211\u4eec\u6709\u4e00\u4e2a\u5df2\u77e5\u7684\u771f\u5b9e\u8fb9\u754c\u6846\uff08Bounding Box\uff09\uff0c\u7528\u5b83\u7684\u5de6\u4e0a\u89d2\u548c\u53f3\u4e0b\u89d2\u5750\u6807&nbsp;<code>(x_min, y_min, x_max, y_max)<\/code>&nbsp;\u8868\u793a\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8ba1\u7b97\u5bbd\u9ad8<\/strong>\uff1a\u8fd9\u4e2a\u6846\u7684\u5bbd\u5ea6\u00a0<code>w<\/code>\u00a0\u548c\u9ad8\u5ea6\u00a0<code>h<\/code>\u00a0\u5f88\u5bb9\u6613\u8ba1\u7b97\uff1a\n<ul class=\"wp-block-list\">\n<li><code>w = x_max - x_min<\/code><\/li>\n\n\n\n<li><code>h = y_max - y_min<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8ba1\u7b97\u4e2d\u5fc3\u70b9<\/strong>\uff1a\u8ba1\u7b97\u51fa\u8fd9\u4e2a\u6846\u7684\u4e2d\u5fc3\u70b9\u5750\u6807\uff0c\u4e5f\u5c31\u662f\u76ee\u6807\u7269\u4f53\u7684\u4e2d\u5fc3\u4f4d\u7f6e\uff1a\n<ul class=\"wp-block-list\">\n<li><code>center_x = (x_min + x_max) \/ 2<\/code><\/li>\n\n\n\n<li><code>center_y = (y_min + y_max) \/ 2<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6620\u5c04\u5230\u7f51\u683c\uff08\u627e\u5230\u201c\u76ee\u6807\u8857\u533a\u201d\uff09<\/strong>\uff1a<ul><li><code>grid_x = floor(center_x \/ stride)<\/code>\u00a0\uff08<code>floor<\/code>\u662f\u5411\u4e0b\u53d6\u6574\uff09<\/li><li><code>grid_y = floor(center_y \/ stride)<\/code><\/li><\/ul>\n<ul class=\"wp-block-list\">\n<li>\u7531\u4e8e\u7f51\u7edc\u6700\u7ec8\u7684\u8f93\u51fa\u662f\u00a0<code>7x7<\/code>\u00a0\u7684\u7279\u5f81\u56fe\uff0c\u6211\u4eec\u9700\u8981\u5c06\u539f\u59cb\u56fe\u7247\u5750\u6807\u6620\u5c04\u5230\u8fd9\u4e2a\u4f4e\u5206\u8fa8\u7387\u7684\u7f51\u683c\u4e0a\u3002\u8fd9\u4e2a\u6620\u5c04\u7684\u6bd4\u4f8b\u5c3a\u5c31\u662f\u00a0<strong><code>stride<\/code>\uff08\u6b65\u957f\uff09<\/strong>\uff0c\u5728\u8fd9\u91cc\u662f\u00a0<code>64<\/code>\uff08<code>448 \/ 7 = 64<\/code>\uff09\u3002<\/li>\n\n\n\n<li>\u8ba1\u7b97\u4e2d\u5fc3\u70b9\u843d\u5728\u54ea\u4e2a\u7f51\u683c\uff1a<\/li>\n\n\n\n<li><strong><code>(grid_x, grid_y)<\/code>\u00a0\u8fd9\u4e2a\u7f51\u683c\u4f4d\u7f6e\uff0c\u5c31\u662f\u201c\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\u201d<\/strong>\u3002\u7f51\u7edc\u8bad\u7ec3\u65f6\uff0c\u53ea\u6709\u8fd9\u4e2a\u683c\u5b50\u9700\u8981\u5b66\u4e60\u5982\u4f55\u9884\u6d4b\u8fd9\u4e2a\u7269\u4f53\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfaf \u4e09\u3001\u7b2c\u4e8c\u6b65\uff1a\u8ba1\u7b97\u201c\u95e8\u724c\u53f7\u201d\uff08\u91cf\u5316\u8bef\u5dee\u4e0e\u5b66\u4e60\u76ee\u6807\uff09<\/p>\n<\/blockquote>\n\n\n\n<p>\u4ec5\u4ec5\u77e5\u9053\u7269\u4f53\u5728\u54ea\u4e2a\u201c\u8857\u533a\u201d\uff08<code>grid_x, grid_y<\/code>\uff09\u662f\u4e0d\u591f\u7684\uff0c\u6211\u4eec\u9700\u8981\u77e5\u9053\u5b83\u5728\u8fd9\u4e2a\u8857\u533a\u5185\u90e8\u7684<strong>\u7cbe\u786e\u4f4d\u7f6e<\/strong>\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8ba1\u7b97\u91cf\u5316\u8bef\u5dee<\/strong>\uff1a<ul><li><code>c_x = (center_x \/ stride) - floor(center_x \/ stride)<\/code><\/li><li><code>c_y = (center_y \/ stride) - floor(center_y \/ stride)<\/code><\/li><\/ul>\n<ul class=\"wp-block-list\">\n<li>\u5f53\u6211\u4eec\u7528\u00a0<code>floor(center_x \/ stride)<\/code>\u00a0\u8ba1\u7b97\u65f6\uff0c\u6211\u4eec\u5f97\u5230\u4e86\u6574\u6570\u90e8\u5206\uff08\u4f8b\u5982\u00a0<code>2<\/code>\uff09\uff0c\u4f46\u4e22\u5f03\u4e86\u5c0f\u6570\u90e8\u5206\uff08\u4f8b\u5982\u00a0<code>0.3<\/code>\uff09\u3002\u8fd9\u4e2a<strong>\u88ab\u4e22\u5f03\u7684\u5c0f\u6570\u90e8\u5206\uff0c\u5c31\u662f\u201c\u91cf\u5316\u8bef\u5dee\u201d<\/strong>\u3002<\/li>\n\n\n\n<li>\u8fd9\u4e2a\u8bef\u5dee\u4ee3\u8868\u4e86\u7269\u4f53\u4e2d\u5fc3\u70b9\u76f8\u5bf9\u4e8e\u6240\u5728\u7f51\u683c<strong>\u5de6\u4e0a\u89d2\u7684\u504f\u79fb\u6bd4\u4f8b<\/strong>\u3002<\/li>\n\n\n\n<li>\u8ba1\u7b97\u516c\u5f0f\uff1a<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u786e\u5b9a\u5b66\u4e60\u76ee\u6807<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong><code>c_x<\/code>\u00a0\u548c\u00a0<code>c_y<\/code>\u00a0\u5c31\u662fYOLOv1\u7f51\u7edc\u5173\u4e8e\u4e2d\u5fc3\u70b9\u5750\u6807\u8981\u5b66\u4e60\u7684\u76ee\u6807\uff01<\/strong><\/li>\n\n\n\n<li>\u5b83\u4eec\u7684\u503c\u6c38\u8fdc\u5728\u00a0<code>[0, 1)<\/code>\u00a0\u8303\u56f4\u5185\u3002\u8fd9\u4f7f\u5f97\u7f51\u7edc\u7684\u5b66\u4e60\u4efb\u52a1\u53d8\u5f97\u975e\u5e38\u7b80\u5355\u548c\u7a33\u5b9a\u2014\u2014<strong>\u4e0d\u518d\u662f\u9884\u6d4b\u51e0\u767e\u50cf\u7d20\u7684\u7edd\u5bf9\u5750\u6807\uff0c\u800c\u662f\u9884\u6d4b\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u5c0f\u6570\uff08\u504f\u79fb\u91cf\uff09<\/strong>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"423\" height=\"46\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060833278.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6769 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060833278.png 423w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060833278-300x33.png 300w\" sizes=\"auto, (max-width: 423px) 100vw, 423px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"423\" height=\"46\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060833278.png\" alt=\"\" class=\"wp-image-6769\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060833278.png 423w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060833278-300x33.png 300w\" sizes=\"auto, (max-width: 423px) 100vw, 423px\" \/><\/noscript><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udd04 \u56db\u3001\u7b2c\u4e09\u6b65\uff1a\u4ece\u9884\u6d4b\u503c\u201c\u53cd\u63a8\u201d\u771f\u5b9e\u5750\u6807\uff08\u89e3\u7801\uff09<\/p>\n<\/blockquote>\n\n\n\n<p>\u7f51\u7edc\u5728\u63a8\u7406\u65f6\uff0c\u4f1a\u5728&nbsp;<code>(grid_x, grid_y)<\/code>&nbsp;\u4f4d\u7f6e\u9884\u6d4b\u51fa&nbsp;<code>c_x<\/code>,&nbsp;<code>c_y<\/code>\uff0c\u4ee5\u53ca\u7269\u4f53\u7684\u5bbd&nbsp;<code>w<\/code>&nbsp;\u548c\u9ad8&nbsp;<code>h<\/code>\u3002\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u9006\u8fc7\u7a0b\u5c06\u8fd9\u4e9b\u503c\u53d8\u56de\u539f\u59cb\u56fe\u7247\u4e0a\u7684\u5750\u6807\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u53cd\u89e3\u4e2d\u5fc3\u70b9\u5750\u6807<\/strong>\uff1a<ul><li><code>center_x = (grid_x + c_x) * stride<\/code><\/li><li><code>center_y = (grid_y + c_y) * stride<\/code><\/li><\/ul>\n<ul class=\"wp-block-list\">\n<li>\u516c\u5f0f\u975e\u5e38\u7b80\u5355\u76f4\u89c2\uff1a<\/li>\n\n\n\n<li><strong>\u901a\u4fd7\u89e3\u91ca<\/strong>\uff1a<code>grid_x * stride<\/code>\u00a0\u53ef\u4ee5\u7b97\u51fa\u8fd9\u4e2a\u7f51\u683c\u5de6\u4e0a\u89d2\u5728\u539f\u59cb\u56fe\u7247\u4e0a\u7684\u7edd\u5bf9\u5750\u6807\u3002\u518d\u52a0\u4e0a\u9884\u6d4b\u7684\u504f\u79fb\u91cf\u00a0<code>c_x * stride<\/code>\uff0c\u5c31\u7cbe\u51c6\u5730\u8fd8\u539f\u51fa\u4e86\u4e2d\u5fc3\u70b9\u7684\u7edd\u5bf9\u5750\u6807\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5904\u7406\u5bbd\u9ad8\uff08w, h\uff09\u2014\u2014 \u5f52\u4e00\u5316<\/strong>\uff1a<ul><li><code>w = w \/ w_image<\/code><\/li><li><code>h = h \/ h_image<\/code><\/li><\/ul>\n<ul class=\"wp-block-list\">\n<li>\u7f51\u7edc\u76f4\u63a5\u9884\u6d4b\u8fb9\u754c\u6846\u7684\u5bbd\u548c\u9ad8\u3002\u4f46\u5bbd\u9ad8\uff08\u53ef\u80fd\u4e0a\u767e\u50cf\u7d20\uff09\u548c\u4e2d\u5fc3\u70b9\u504f\u79fb\uff080~1\uff09\u7684\u6570\u503c\u5c3a\u5ea6\u5dee\u5f02\u5de8\u5927\uff0c\u76f4\u63a5\u4e00\u8d77\u8bad\u7ec3\u4f1a\u5bfc\u81f4\u7f51\u7edc\u4e0d\u7a33\u5b9a\uff08Loss\u4e0d\u5e73\u8861\uff09\u3002<\/li>\n\n\n\n<li><strong>\u89e3\u51b3\u65b9\u6848\uff1a\u5f52\u4e00\u5316<\/strong>\u3002\u5c06\u5bbd\u548c\u9ad8\u5206\u522b\u9664\u4ee5\u56fe\u7247\u7684\u603b\u5bbd\u5ea6\u548c\u603b\u9ad8\u5ea6\uff0c\u4e5f\u538b\u7f29\u52300~1\u9644\u8fd1\uff1a<\/li>\n\n\n\n<li>\u8fd9\u6837\uff0c\u7f51\u7edc\u9884\u6d4b\u7684\u00a0<code>w<\/code>,\u00a0<code>h<\/code>\u00a0\u76ee\u6807\u503c\u4e5f\u548c\u00a0<code>c_x<\/code>,\u00a0<code>c_y<\/code>\u00a0\u7684\u5c3a\u5ea6\u4e00\u81f4\uff0c\u8bad\u7ec3\u5c31\u7a33\u5b9a\u4e86\u3002\u9884\u6d4b\u65f6\uff0c\u518d\u7528\u00a0<code>w * w_image<\/code>\u00a0\u548c\u00a0<code>h * h_image<\/code>\u00a0\u8fd8\u539f\u56de\u771f\u5b9e\u7684\u5bbd\u9ad8\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfc6 \u4e94\u3001\u603b\u7ed3\u4e0e\u610f\u4e49<\/p>\n<\/blockquote>\n\n\n\n<p>YOLOv1\u7684\u4e24\u4e2a\u4f1f\u5927\u4e4b\u5904\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b83\u5c06\u590d\u6742\u7684\u68c0\u6d4b\u95ee\u9898\u5206\u89e3<\/strong>\uff1a\u628a\u201c\u627e\u7269\u4f53\u201d\u8fd9\u4e2a\u96be\u9898\uff0c\u5206\u89e3\u4e3a\u00a0<strong>\u201c\u7f51\u683c\u5b9a\u4f4d\u201d (<code>grid_x, grid_y<\/code>) + \u201c\u7cbe\u7ec6\u504f\u79fb\u201d (<code>c_x, c_y<\/code>) + \u201c\u5927\u5c0f\u9884\u6d4b\u201d (<code>w, h<\/code>)<\/strong>\u00a0\u4e09\u4e2a\u66f4\u7b80\u5355\u7684\u5b50\u95ee\u9898\uff0c\u6781\u5927\u964d\u4f4e\u4e86\u5b66\u4e60\u96be\u5ea6\u3002<\/li>\n\n\n\n<li><strong>\u5b83\u662fAnchor-Free\u7684\u5f00\u521b\u8005<\/strong>\uff1a\u8fd9\u79cd\u8ba9\u6bcf\u4e2a\u7f51\u683c\u76f4\u63a5\u9884\u6d4b<strong>\u76f8\u5bf9\u4e8e\u81ea\u8eab\u4f4d\u7f6e\u7684\u504f\u79fb\u91cf<\/strong>\u7684\u601d\u8def\uff0c\u65e0\u9700\u9884\u5148\u8bbe\u7f6e\u5927\u91cf\u4e0d\u540c\u5f62\u72b6\u7684\u201c\u951a\u6846\u201d\uff08Anchor\uff09\uff0c\u8bbe\u8ba1\u975e\u5e38\u7b80\u6d01\u3001\u4f18\u96c5\uff0c\u6210\u4e3a\u4e86\u540e\u6765\u4f17\u591aAnchor-Free\u68c0\u6d4b\u7b97\u6cd5\u7684\u601d\u60f3\u6e90\u6cc9\u3002<\/li>\n<\/ol>\n\n\n\n<p><strong>\u7b80\u5355\u56de\u987e\u5176\u5de5\u4f5c\u6d41\u7a0b\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8bad\u7ec3\u65f6<\/strong>\uff1a\u6839\u636e\u771f\u5b9e\u6846\uff0c\u8ba1\u7b97\u51fa\u00a0<code>c_x<\/code>,\u00a0<code>c_y<\/code>\uff08\u504f\u79fb\u76ee\u6807\uff09\u548c\u5f52\u4e00\u5316\u7684\u00a0<code>w<\/code>,\u00a0<code>h<\/code>\uff08\u5bbd\u9ad8\u76ee\u6807\uff09\uff0c\u8ba9\u7f51\u7edc\u53bb\u5b66\u4e60\u3002<\/li>\n\n\n\n<li><strong>\u63a8\u7406\u65f6<\/strong>\uff1a\u7f51\u7edc\u5728\u00a0<code>(grid_x, grid_y)<\/code>\u00a0\u4f4d\u7f6e\u9884\u6d4b\u51fa\u00a0<code>c_x<\/code>,\u00a0<code>c_y, w, h<\/code>\uff0c\u6211\u4eec\u518d\u901a\u8fc7\u89e3\u7801\u548c\u53cd\u5f52\u4e00\u5316\u516c\u5f0f\uff0c\u5c06\u5b83\u4eec\u8fd8\u539f\u6210\u56fe\u7247\u4e0a\u6700\u7ec8\u7684\u8fb9\u754c\u6846\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u518d\u6765\u770b\u539f\u6587\uff0c\u8bb2\u7684\u633a\u6e05\u6670\u8fd9\u90e8\u5206<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"811\" height=\"1024\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060841422-811x1024.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6770 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060841422-811x1024.png 811w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060841422-238x300.png 238w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060841422-768x970.png 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060841422.png 922w\" sizes=\"auto, (max-width: 811px) 100vw, 811px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"811\" height=\"1024\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060841422-811x1024.png\" alt=\"\" class=\"wp-image-6770\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060841422-811x1024.png 811w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060841422-238x300.png 238w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060841422-768x970.png 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060841422.png 922w\" sizes=\"auto, (max-width: 811px) 100vw, 811px\" \/><\/noscript><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"811\" height=\"1024\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060909558-811x1024.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6771 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060909558-811x1024.png 811w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060909558-238x300.png 238w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060909558-768x970.png 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060909558.png 922w\" sizes=\"auto, (max-width: 811px) 100vw, 811px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"811\" height=\"1024\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060909558-811x1024.png\" alt=\"\" class=\"wp-image-6771\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060909558-811x1024.png 811w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060909558-238x300.png 238w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060909558-768x970.png 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060909558.png 922w\" sizes=\"auto, (max-width: 811px) 100vw, 811px\" \/><\/noscript><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"902\" height=\"712\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060919273.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6772 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060919273.png 902w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060919273-300x237.png 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060919273-768x606.png 768w\" sizes=\"auto, (max-width: 902px) 100vw, 902px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"902\" height=\"712\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060919273.png\" alt=\"\" class=\"wp-image-6772\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060919273.png 902w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060919273-300x237.png 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060919273-768x606.png 768w\" sizes=\"auto, (max-width: 902px) 100vw, 902px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u77a7\u77a7\uff0c\u662f\u4e0d\u662f\u89c9\u5f97\u6709\u7684\u65f6\u5019\u79d1\u7814\u5c31\u662f\u5728\u5f00\u201c\u5386\u53f2\u5012\u8f66\u201d\u5462\uff1f\u4e0d\u8fc7\uff0c\u4ece\u87ba\u65cb\u53d1\u5c55\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u8fd9\u5e76\u4e0d\u5947\u602a\uff0c\u6bd5\u7adf\u90a3\u65f6\u5019\u8fdeanchor box\u90fd\u6ca1\u6709\u5462\uff0c\u8bf4YOLOv1\u662fanchor-free\u6a21\u578b\u53cd\u800c\u6709\u70b9\u672c\u672b\u5012\u7f6e\u4e86\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u90a3\u6211\u4eec\u4e86\u89e3\u4e00\u4e0b\u7406\u89e3\u76ee\u6807\u68c0\u6d4b\u4e2d\u7684&nbsp;<strong>Anchor-based<\/strong>\uff08\u57fa\u4e8e\u951a\u6846\uff09\u548c&nbsp;<strong>Anchor-free<\/strong>\uff08\u65e0\u951a\u6846\uff09\u3002<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\uddf1 \u6838\u5fc3\u6982\u5ff5\u901f\u89c8<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027\u7ef4\u5ea6<\/th><th><strong>Anchor-Based (\u57fa\u4e8e\u951a\u6846)<\/strong><\/th><th><strong>Anchor-Free (\u65e0\u951a\u6846)<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>\u6838\u5fc3\u601d\u60f3<\/strong><\/td><td>\u9884\u5148\u94fa\u8bbe\u5927\u91cf\u4e0d\u540c\u5f62\u72b6\u7684\u201c<strong>\u951a\u6846<\/strong>\u201d\u4f5c\u4e3a\u5019\u9009\uff0c\u7f51\u7edc\u5b66\u4e60\u8c03\u6574\u8fd9\u4e9b\u6846\u3002<\/td><td><strong>\u76f4\u63a5\u9884\u6d4b<\/strong>\u76ee\u6807\u7684\u5173\u952e\u70b9\uff08\u5982\u4e2d\u5fc3\u3001\u89d2\u70b9\uff09\u6216\u8fb9\u754c\u6846\uff0c<strong>\u65e0\u9700\u9884\u5b9a\u4e49\u951a\u6846<\/strong>\u3002<\/td><\/tr><tr><td><strong>\u5de5\u4f5c\u539f\u7406<\/strong><\/td><td>1. \u751f\u6210\u951a\u6846<br>2. \u8ba1\u7b97\u951a\u6846\u4e0e\u771f\u5b9e\u6846\u7684IoU\u6765\u786e\u5b9a\u6b63\u8d1f\u6837\u672c<br>3. \u56de\u5f52\u951a\u6846\u7684\u504f\u79fb\u91cf\u8fdb\u884c\u8c03\u6574<br>4. \u5206\u7c7b<\/td><td>1. \u5b9a\u4f4d\u5173\u952e\u70b9\uff08\u5982\u4e2d\u5fc3\u70b9\u6216\u89d2\u70b9\uff09<br>2. \u76f4\u63a5\u56de\u5f52\u8fb9\u754c\u6846\u7684\u5c3a\u5bf8\u6216\u504f\u79fb\u91cf<\/td><\/tr><tr><td><strong>\u5178\u578b\u4ee3\u8868<\/strong><\/td><td><strong>Faster R-CNN<\/strong>&nbsp;(\u4e24\u9636\u6bb5)<br><strong>YOLOv2-v5<\/strong>&nbsp;(\u5355\u9636\u6bb5)<br><strong>RetinaNet<\/strong><\/td><td><strong>YOLOv1<\/strong><br><strong>CornerNet<\/strong>&nbsp;(\u5173\u952e\u70b9)<br><strong>FCOS<\/strong>,&nbsp;<strong>CenterNet<\/strong>&nbsp;(\u4e2d\u5fc3\u70b9)<\/td><\/tr><tr><td><strong>\u4e3b\u8981\u4f18\u70b9<\/strong><\/td><td>\u53ec\u56de\u7387\u8f83\u9ad8\uff0c\u6536\u655b\u901f\u5ea6\u8f83\u5feb\uff0c\u6280\u672f\u76f8\u5bf9\u6210\u719f\u3002<\/td><td>\u6a21\u578b\u8bbe\u8ba1\u66f4<strong>\u7b80\u6d01<\/strong>\uff0c<strong>\u51cf\u5c11\u8d85\u53c2\u6570<\/strong>\u548c\u8ba1\u7b97\u91cf\uff0c<strong>\u6cdb\u5316\u80fd\u529b<\/strong>\u66f4\u5f3a\u3002<\/td><\/tr><tr><td><strong>\u4e3b\u8981\u7f3a\u70b9<\/strong><\/td><td><strong>\u8d85\u53c2\u6570\u591a<\/strong>\uff08\u5c3a\u5bf8\u3001\u6bd4\u4f8b\u3001\u6570\u91cf\u9700\u7cbe\u5fc3\u8bbe\u8ba1\uff09\uff0c\u8ba1\u7b97\u5197\u4f59\uff0c<strong>\u6cdb\u5316\u80fd\u529b<\/strong>\u8f83\u5f31\u3002<\/td><td>\u5c0f\u76ee\u6807\u68c0\u6d4b\u3001<strong>\u5bc6\u96c6\u7269\u4f53<\/strong>\u548c<strong>\u91cd\u53e0\u573a\u666f<\/strong>\u4e0b\u7684\u7cbe\u786e\u5b9a\u4f4d\u80fd\u529b\u53ef\u80fd\u9762\u4e34\u6311\u6218\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udd0d \u6df1\u5165\u7406\u89e3\u4e24\u79cd\u65b9\u6cd5<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-embed\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/wxa.wxs.qq.com\/tmpl\/oc\/base_tmpl.html\n<\/div><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\udde9 Anchor-Based (\u57fa\u4e8e\u951a\u6846) \u8fd9\u79cd\u65b9\u6cd5\u4f60\u53ef\u4ee5\u60f3\u8c61\u6210\uff1a\u5728\u4e00\u5f20\u56fe\u7247\u4e0a\uff0c\u7cfb\u7edf\u4f1a\u9884\u5148\u94fa\u4e0a\u6210\u5343\u4e0a\u4e07\u4e2a\u4e0d\u540c\u5927\u5c0f\u3001\u4e0d\u540c\u957f\u5bbd\u6bd4\u7684\u201c<strong>\u951a\u6846<\/strong>\u201d\uff08Anchor Boxes\uff09\u6216\u201c<strong>\u5148\u9a8c\u6846<\/strong>\u201d\u3002\u8fd9\u4e9b\u951a\u6846\u662f\u9884\u5148\u5b9a\u4e49\u597d\u7684\u5019\u9009\u68c0\u6d4b\u6846\u3002\u7f51\u7edc\u7684\u4efb\u52a1\u4e0d\u662f\u76f4\u63a5\u51ed\u7a7a\u751f\u6210\u6846\uff0c\u800c\u662f<strong>\u5b66\u4e60\u5982\u4f55\u5fae\u8c03\u8fd9\u4e9b\u9884\u5b9a\u4e49\u7684\u951a\u6846<\/strong>\uff0c\u4f7f\u5176\u5b8c\u7f8e\u5730\u8d34\u5408\u771f\u5b9e\u7269\u4f53\u3002<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5de5\u4f5c\u6d41\u7a0b<\/strong>\uff1a\n<ol class=\"wp-block-list\">\n<li><strong>\u751f\u6210\u951a\u6846<\/strong>\uff1a\u5728\u7279\u5f81\u56fe\u7684\u6bcf\u4e2a\u4f4d\u7f6e\u4e0a\uff0c\u9884\u5148\u751f\u6210\u591a\u4e2a\u4e0d\u540c\u5c3a\u5ea6\u548c\u5bbd\u9ad8\u6bd4\u7684\u951a\u6846\u3002<\/li>\n\n\n\n<li><strong>\u5339\u914d\u6b63\u8d1f\u6837\u672c<\/strong>\uff1a\u8ba1\u7b97\u6bcf\u4e2a\u951a\u6846\u4e0e\u771f\u5b9e\u6807\u6ce8\u6846\u7684<strong>\u4ea4\u5e76\u6bd4\uff08IoU\uff09<\/strong>\u3002IoU\u9ad8\u7684\u951a\u6846\u88ab\u6807\u8bb0\u4e3a<strong>\u6b63\u6837\u672c<\/strong>\uff08\u5305\u542b\u7269\u4f53\uff09\uff0cIoU\u5f88\u4f4e\u7684\u5219\u6807\u8bb0\u4e3a<strong>\u8d1f\u6837\u672c<\/strong>\uff08\u80cc\u666f\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8fb9\u754c\u6846\u56de\u5f52<\/strong>\uff1a\u7f51\u7edc\u5b66\u4e60\u9884\u6d4b\u6b63\u6837\u672c\u951a\u6846\u9700\u8981\u8fdb\u884c\u7684<strong>\u7cbe\u7ec6\u8c03\u6574<\/strong>\uff08\u5fae\u8c03\u504f\u79fb\u91cf\uff09\uff0c\u4f7f\u5176\u66f4\u51c6\u786e\u5730\u5339\u914d\u771f\u5b9e\u7269\u4f53\u3002<\/li>\n\n\n\n<li><strong>\u5206\u7c7b<\/strong>\uff1a\u540c\u65f6\uff0c\u7f51\u7edc\u5224\u65ad\u6bcf\u4e2a\u8c03\u6574\u540e\u7684\u951a\u6846\u5185\u7269\u4f53\u7684\u7c7b\u522b\u3002<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>\u4f18\u7f3a\u70b9<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u4f18\u70b9<\/strong>\uff1a\u951a\u6846\u63d0\u4f9b\u4e86\u826f\u597d\u7684<strong>\u521d\u59cb\u731c\u6d4b<\/strong>\uff0c\u6709\u52a9\u4e8e\u7f51\u7edc\u66f4\u5feb\u6536\u655b\uff0c\u5e76\u4e14\u5728\u4f20\u7edf\u5e94\u7528\u4e0a\u975e\u5e38\u6210\u719f\u3002<\/li>\n\n\n\n<li><strong>\u7f3a\u70b9<\/strong>\uff1a\u951a\u6846\u7684<strong>\u5c3a\u5bf8\u3001\u6bd4\u4f8b\u548c\u6570\u91cf<\/strong>\u90fd\u9700\u8981\u4eba\u5de5\u9884\u5148\u8bbe\u5b9a\u6216\u901a\u8fc7\u805a\u7c7b\u786e\u5b9a\uff0c\u8fd9\u4f9d\u8d56\u4e8e\u7ecf\u9a8c\u548c\u6570\u636e\uff0c\u7f3a\u4e4f\u7075\u6d3b\u6027\u4e14\u4f1a\u5f15\u5165\u5927\u91cf\u8d85\u53c2\u6570\u3002\u540c\u65f6\uff0c\u4f1a\u4ea7\u751f\u5927\u91cf\u65e0\u6548\u7684\u951a\u6846\uff0c\u5bfc\u81f4\u8ba1\u7b97\u5197\u4f59\u548c\u6b63\u8d1f\u6837\u672c\u4e0d\u5e73\u8861\u95ee\u9898\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfaf Anchor-Free (\u65e0\u951a\u6846) \u65e0\u951a\u6846\u65b9\u6cd5\u8bd5\u56fe\u6446\u8131\u5bf9\u9884\u5b9a\u4e49\u951a\u6846\u7684\u4f9d\u8d56\uff0c\u8ffd\u6c42\u66f4\u7b80\u6d01\u3001\u66f4\u76f4\u63a5\u7684\u68c0\u6d4b\u65b9\u5f0f\u3002\u5b83\u7684\u6838\u5fc3\u601d\u60f3\u662f\uff1a<strong>\u76f4\u63a5\u9884\u6d4b\u7269\u4f53\u672c\u8eab\u7684\u5173\u952e\u5c5e\u6027<\/strong>\uff0c\u800c\u4e0d\u662f\u53bb\u8c03\u6574\u4e00\u5806\u9884\u5b9a\u4e49\u7684\u6846\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u65e0\u951a\u6846\u65b9\u6cd5\u4e3b\u8981\u5206\u4e3a\u4e24\u5927\u6d41\u6d3e\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u4e8e\u5173\u952e\u70b9\uff08Keypoint-based\uff09<\/strong>\uff1a\u4f8b\u5982\u00a0<strong>CornerNet<\/strong>\uff0c\u901a\u8fc7\u68c0\u6d4b\u7269\u4f53\u7684<strong>\u5de6\u4e0a\u89d2\u548c\u53f3\u4e0b\u89d2<\/strong>\u4e24\u4e2a\u5173\u952e\u70b9\uff0c\u7136\u540e\u5c06\u5b83\u4eec\u914d\u5bf9\u7ec4\u5408\u6210\u8fb9\u754c\u6846\u3002<\/li>\n\n\n\n<li><strong>\u57fa\u4e8e\u4e2d\u5fc3\uff08Center-based\uff09<\/strong>\uff1a\u4f8b\u5982\u00a0<strong>FCOS<\/strong>\u00a0\u548c\u00a0<strong>CenterNet<\/strong>\uff0c\u5b83\u4eec<strong>\u5c06\u76ee\u6807\u7684\u4e2d\u5fc3\u70b9\u6216\u4e2d\u5fc3\u533a\u57df\u5b9a\u4e49\u4e3a\u6b63\u6837\u672c<\/strong>\uff0c\u7136\u540e\u76f4\u63a5\u9884\u6d4b\u8be5\u70b9\u5230\u7269\u4f53\u8fb9\u754c\u6846\u7684\u56db\u6761\u8fb9\u7684\u8ddd\u79bb\uff08\u4e0a\u3001\u4e0b\u3001\u5de6\u3001\u53f3\uff09\uff0c\u6216\u8005\u76f4\u63a5\u9884\u6d4b\u7269\u4f53\u7684\u5bbd\u548c\u9ad8\u3002<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5de5\u4f5c\u6d41\u7a0b\uff08\u4ee5FCOS\u4e3a\u4f8b\uff09<\/strong>\uff1a\n<ol class=\"wp-block-list\">\n<li>\u5c06\u56fe\u50cf\u8f93\u5165\u7f51\u7edc\uff0c\u8f93\u51fa\u7279\u5f81\u56fe\u4e0a\u6bcf\u4e2a\u70b9\u90fd\u8d1f\u8d23\u9884\u6d4b\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4e00\u4e2a\u70b9\u7684\u4f4d\u7f6e\u843d\u5728\u771f\u5b9e\u6846\u5185\uff0c\u5b83\u5c31\u88ab\u89c6\u4e3a<strong>\u6b63\u6837\u672c<\/strong>\uff0c\u9700\u8981\u9884\u6d4b\u7269\u4f53\u7c7b\u522b\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u6b63\u6837\u672c\u70b9\uff0c\u7f51\u7edc<strong>\u76f4\u63a5\u56de\u5f52<\/strong>\u56db\u4e2a\u503c\uff1a\u5230\u8fb9\u754c\u6846\u5de6\u3001\u53f3\u3001\u4e0a\u3001\u4e0b\u7684\u8ddd\u79bb\u3002<\/li>\n\n\n\n<li>\u5f15\u5165\u00a0<strong>\u201c\u4e2d\u5fc3\u5ea6\u201d\uff08Centerness\uff09<\/strong>\u00a0\u6982\u5ff5\uff0c\u9884\u6d4b\u70b9\u8ddd\u79bb\u7269\u4f53\u4e2d\u5fc3\u7684\u7a0b\u5ea6\uff0c\u7528\u4e8e\u6291\u5236\u4f4e\u8d28\u91cf\u9884\u6d4b\u6846\u3002<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>\u4f18\u7f3a\u70b9<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u4f18\u70b9<\/strong>\uff1a<strong>\u6a21\u578b\u8bbe\u8ba1\u66f4\u7b80\u5355<\/strong>\uff0c\u907f\u514d\u4e86\u4e0e\u951a\u6846\u76f8\u5173\u7684\u6240\u6709\u8d85\u53c2\u6570\u548c\u590d\u6742\u8ba1\u7b97\u3002<strong>\u6cdb\u5316\u80fd\u529b<\/strong>\u66f4\u5f3a\uff0c\u66f4\u5bb9\u6613\u8fc1\u79fb\u5230\u4e0d\u540c\u6570\u636e\u96c6\u6216\u4efb\u52a1\u4e0a\u3002<\/li>\n\n\n\n<li><strong>\u7f3a\u70b9<\/strong>\uff1a\u5728<strong>\u6781\u7aef\u573a\u666f<\/strong>\u4e0b\u53ef\u80fd\u9762\u4e34\u6311\u6218\uff0c\u4f8b\u5982\u975e\u5e38\u5c0f\u7684\u7269\u4f53\u3001\u4e25\u91cd\u91cd\u53e0\u7684\u7269\u4f53\uff0c\u5176<strong>\u5bc6\u96c6\u9884\u6d4b<\/strong>\u7684\u7279\u6027\u53ef\u80fd\u4f7f\u5f97\u6b63\u8d1f\u6837\u672c\u5206\u914d\u548c\u7cbe\u786e\u5b9a\u4f4d\u53d8\u5f97\u56f0\u96be\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\udd14 \u5982\u4f55\u9009\u62e9\u4e0e\u53d1\u5c55\u8d8b\u52bf<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5982\u4f55\u9009\u62e9<\/strong>\uff1a\u8fd9\u901a\u5e38\u53d6\u51b3\u4e8e\u4f60\u7684\u5177\u4f53\u4efb\u52a1\u3001\u6570\u636e\u96c6\u548c\u8d44\u6e90\u9650\u5236\u3002<strong>Anchor-based<\/strong>\u00a0\u65b9\u6cd5\u5728<strong>\u4f20\u7edf\u5e94\u7528<\/strong>\u548c<strong>\u9ad8\u53ec\u56de\u7387<\/strong>\u573a\u666f\u4e2d\u53ef\u80fd\u66f4\u7a33\u5b9a\u3002\u800c\u00a0<strong>Anchor-free<\/strong>\u00a0\u65b9\u6cd5\u5728\u8ffd\u6c42<strong>\u6a21\u578b\u7b80\u6d01\u6027<\/strong>\u3001<strong>\u63a8\u7406\u901f\u5ea6<\/strong>\u548c<strong>\u6cdb\u5316\u80fd\u529b<\/strong>\u65f6\u66f4\u6709\u4f18\u52bf\u3002<\/li>\n\n\n\n<li><strong>\u53d1\u5c55\u8d8b\u52bf<\/strong>\uff1a\u8fd1\u5e74\u6765\uff0cAnchor-free \u65b9\u6cd5\u56e0\u5176\u7b80\u6d01\u6027\u548c\u4e0d\u65ad\u589e\u957f\u7684\u6027\u80fd\u8868\u73b0\u800c\u53d7\u5230\u5e7f\u6cdb\u5173\u6ce8\uff0c\u6210\u4e3a\u4e86\u76ee\u6807\u68c0\u6d4b\u9886\u57df\u7684\u4e00\u4e2a\u91cd\u8981\u7814\u7a76\u65b9\u5411\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c<strong>YOLO \u7cfb\u5217\u7684\u53d1\u5c55<\/strong>\u4e5f\u4f53\u73b0\u4e86\u8fd9\u79cd\u6f14\u53d8\uff1aYOLOv1 \u662f Anchor-free \u7684\uff0cYOLOv2 \u5230 v5 \u8f6c\u5411\u4e86 Anchor-based\uff0c\u800c\u6700\u65b0\u7684\u00a0<strong>YOLOX \u7b49\u7248\u672c\u53c8\u56de\u5f52\u4e86 Anchor-free \u8bbe\u8ba1<\/strong>\uff0c\u5e76\u53d6\u5f97\u4e86\u4f18\u5f02\u6027\u80fd\uff0c\u8fd9\u5370\u8bc1\u4e86\u201c\u87ba\u65cb\u5f0f\u4e0a\u5347\u201d\u7684\u6280\u672f\u53d1\u5c55\u89c4\u5f8b\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udc8e \u6838\u5fc3\u533a\u522b\u4e0e\u8054\u7cfb<\/p>\n<\/blockquote>\n\n\n\n<p>\u5c3d\u7ba1\u4e24\u79cd\u65b9\u6cd5\u8def\u5f84\u4e0d\u540c\uff0c\u4f46\u5b83\u4eec\u7684<strong>\u6838\u5fc3\u4efb\u52a1\u662f\u4e00\u81f4\u7684<\/strong>\uff1a<strong>\u51c6\u786e\u5206\u7c7b\u56fe\u50cf\u4e2d\u7684\u7269\u4f53\u5e76\u5b9a\u4f4d\u5176\u4f4d\u7f6e<\/strong>\u3002\u7814\u7a76\u8868\u660e\uff0c\u5f53\u4f7f\u7528<strong>\u76f8\u540c\u7684\u6b63\u8d1f\u6837\u672c\u5b9a\u4e49\u7b56\u7565<\/strong>\u65f6\uff0c\u4e24\u79cd\u65b9\u6cd5\u6700\u7ec8\u7684\u6027\u80fd\u5dee\u5f02\u4f1a\u53d8\u5f97\u5f88\u5c0f\u3002\u8fd9\u610f\u5473\u7740\uff0c<strong>\u5982\u4f55\u4e3a\u7f51\u7edc\u8bad\u7ec3\u9009\u62e9\u9ad8\u8d28\u91cf\u7684\u6b63\u6837\u672c\u548c\u8d1f\u6837\u672c\uff0c\u6bd4\u201c\u662f\u5426\u4f7f\u7528\u951a\u6846\u201d\u66f4\u4e3a\u5173\u952e<\/strong>\u3002<\/p>\n\n\n\n<p>\u4e0d\u8fc7\uff0c\u8fd9\u4e9b\u90fd\u4e0d\u91cd\u8981\uff0c\u6211\u4eec\u7ee7\u7eed\u770b\u70b9\u5b9e\u5728\u7684\u4e1c\u897f\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u5df2\u7ecf\u786e\u5b9a\u4e86bbox\u7684\u4f4d\u7f6e\u53c2\u6570\uff0c\u63a5\u4e0b\u6765\uff0c\u518d\u770b\u6846\u7684\u7f6e\u4fe1\u5ea6 C \uff0c\u6216\u8005\u8bf4\u662fobjectness\u3002<\/p>\n\n\n\n<p>\u5b83\u7684\u4f5c\u7528\u5176\u5b9e\u5c31\u662f\u7528\u6765\u8868\u5f81\u6b64\u5904\u662f\u5426\u6709\u7269\u4f53\uff0c\u548cRPN \u7684\u6982\u5ff5\u662f\u4e00\u6837\u7684\uff0c\u56e0\u6b64\uff0c\u5b66\u4e60\u6807\u7b7e\u53ef\u4ee5\u75280\u548c1\uff0c\u5206\u522b\u8868\u793a\u6709\u7269\u4f53\u989d\u6ca1\u6709\u7269\u4f53\u3002\u4f46\u662f\uff0cYOLO\u8ba4\u4e3a\u6846\u7684\u7f6e\u4fe1\u5ea6\u4e5f\u5e94\u8be5\u5177\u5907\u8868\u5f81\u5bf9bbox\u9884\u6d4b\u7684\u5b9a\u91cf\u8bc4\u4ef7\u7684\u80fd\u529b\uff0c\u56e0\u6b64\uff0c\u5c3d\u7ba1\u5bf9\u4e8e\u6ca1\u6709\u7269\u4f53\u5904\uff0c\u5176\u5b66\u4e60\u6807\u7b7e\u662f0\uff0c\u4f46\u5bf9\u4e8e\u6709\u7269\u4f53\u7684\u5730\u65b9\uff0c\u5219\u91c7\u7528\u53e6\u4e00\u79cd\u505a\u6cd5\uff1a<\/p>\n\n\n\n<p>\u5177\u4f53\u6765\u8bf4\uff0c\u5728\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\uff0c\u5728\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\u5904(<code>grid_x, grid_y<\/code>\uff09\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c1\u6b65\uff1aYOLOv1\u7f51\u7edc\u8f93\u51faB\u4e2a\u9884\u6d4b\u6846\uff1b<\/li>\n\n\n\n<li>\u7b2c2\u6b65\uff1a\u8ba1\u7b97\u8fd9B\u4e2abbox\u4e0e\u6b64\u5904\u7684\u771f\u5b9ebbox\uff08\u4e5f\u5c31\u662f\u6807\u7b7e\uff09\u4e4b\u95f4\u7684\u4ea4\u5e76\u6bd4\uff08Intersection over Union\uff0cIoU\uff09\uff0c\u5f97\u5230B\u4e2aIoU\u503c\uff1b<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1016\" height=\"686\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060926989.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6773 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060926989.jpg 1016w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060926989-300x203.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060926989-768x519.jpg 768w\" sizes=\"auto, (max-width: 1016px) 100vw, 1016px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1016\" height=\"686\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060926989.jpg\" alt=\"\" class=\"wp-image-6773\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060926989.jpg 1016w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060926989-300x203.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929060926989-768x519.jpg 768w\" sizes=\"auto, (max-width: 1016px) 100vw, 1016px\" \/><\/noscript><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c3\u6b65\uff1a\u9009\u62e9IoU\u503c\u6700\u5927\u7684\u9884\u6d4b\u6846\u4f5c\u4e3a\u6b63\u6837\u672c\uff0c\u5206\u522b\u53bb\u8ba1\u7b97\u7f6e\u4fe1\u5ea6\u635f\u5931\u3001\u7c7b\u522b\u635f\u5931\u548c\u8fb9\u754c\u6846\u56de\u5f52\u635f\u5931\uff0c\u5176\u4e2d\u7f6e\u4fe1\u5ea6\u635f\u5931\u7684\u6807\u7b7e\u5c31\u662f\u8be5IoU\u503c\u3002<\/li>\n\n\n\n<li>\u7b2c4\u6b65\uff1a\u5bf9\u4e8e\u5269\u4e0b\u7684\u6ca1\u88ab\u9009\u4e2d\u7684B-1\u4e2a\u9884\u6d4b\u6846\uff0c\u5b83\u4eec\u90fd\u88ab\u6807\u8bb0\u4e3a\u8d1f\u6837\u672c\uff0c\u5373\u53ea\u8ba1\u7b97\u7f6e\u4fe1\u5ea6\u635f\u5931\uff0c\u4e14\u7f6e\u4fe1\u5ea6\u6807\u7b7e\u90fd\u4e3a0\uff0c\u8fd9\u662f\u663e\u7136\u7684\u3002\u8fd9\u4e9b\u8d1f\u6837\u672c\u4e0d\u8ba1\u7b97\u7c7b\u522b\u635f\u5931\u548c\u8fb9\u754c\u6846\u56de\u5f52\u635f\u5931\u3002\u540c\u65f6\uff0c\u5bf9\u4e8e\u90a3\u4e9b\u5904\u5728\u6b63\u6837\u672c\u5019\u9009\u533a\u57df\u4e4b\u5916\u7684\u9884\u6d4b\uff0c\u90fd\u6807\u8bb0\u4e3a\u8be5\u6807\u7b7e\u7684\u8d1f\u6837\u672c\uff0c\u4e5f\u53ea\u8ba1\u7b97\u7f6e\u4fe1\u5ea6\u635f\u5931\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4e3e\u4f8b\u6765\u8bf4\uff0c\u5047\u8bbe\u5f53\u524d\u9884\u6d4b\u7684B\u4e2a\u77e9\u5f62\u6846\u548c\u771f\u5b9e\u7684\u77e9\u5f62\u6846\u7684\u6700\u5927IoU = 0.28\uff0c\u5bf9\u5e94\u7684\u9884\u6d4bbbox\u4e3aBi\uff0c\u90a3\u4e48\u7f51\u7edc\u5c31\u4f1a\u5c06\u8fd9\u4e2a0.28\u4f5c\u4e3a\u7f6e\u4fe1\u5ea6C\u7684\u5b66\u4e60\u76ee\u6807\uff0c\u540c\u65f6\u53ea\u6709Bi\uff0c\u4f1a\u53bb\u8ba1\u7b97regression\u90e8\u5206\u7684loss\uff0c\u7136\u540e\u53cd\u5411\u4f20\u64ad\uff0c\u5176\u4ed6\u7684bbox\u5c31\u90fd\u88ab\u5ffd\u7565\u4e86\u3002<\/p>\n\n\n\n<p>\u53ef\u89c1\uff0c\u5018\u82e5bbox\u90fd\u5b66\u5f97\u4e0d\u597d\uff0c\u90a3\u4e48\u7b97\u51fa\u7684IoU\u4e5f\u5c31\u90fd\u4e0d\u9ad8\uff0c\u7f51\u7edc\u9884\u6d4b\u7684\u7f6e\u4fe1\u5ea6\u5b66\u51fa\u6765\u7684\u4e5f\u5c31\u504f\u4f4e\u3002\u4f46\u6362\u4e2a\u89d2\u5ea6\u6765\u770b\uff0c\u8fd9\u4e2a\u7f6e\u4fe1\u5ea6\u76f4\u63a5\u5c31\u80fd\u8861\u91cf\u5b9a\u4f4d\u7684\u597d\u574f\u3002<\/p>\n\n\n\n<p>\u8ba9\u7f51\u7edc\u5b66\u4e60IoU\uff0c\u5373\u6240\u8c13\u7684IoU-Aware\uff0c\u8fd9\u4e00\u601d\u60f3\u8fd8\u662f\u5728\u540e\u6765\u7684ECCV\u7684IoU-Net\u63d0\u51fa\u7684\u5462~<\/p>\n\n\n\n<p>\u53e6\u5916\uff0c\u5173\u4e8eYOLOv1\u4e2d\u53ea\u8ba9IoU\u6700\u9ad8\u7684\u90a3\u4e2abbox\u53bb\u56de\u5f52\uff0c\u5176\u4ed6\u90fd\u5ffd\u7565\u6389\u8fd9\u4e00\u70b9\uff0c\u7b14\u8005\u8ba4\u4e3a\u662f\u591a\u4f59\u7684\uff0c\u56e0\u4e3aB\u4e2abbox\u662f\u5b8c\u5168\u5e73\u6743\u7684\uff0c\u6ca1\u6709\u5dee\u5f02\u6027\uff0c\u6ca1\u6709\u7ea6\u675f\u6027\uff0c\u5012\u4e0d\u5982\u5c31\u4ee4B=1\uff0c\u7b80\u5355\u7701\u4e8b\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u4e0d\u65ad\u91cd\u590d\u8fd9\u51e0\u4e2a\u6b65\u9aa4\uff0c\u76f4\u5230\u7ed9\u6240\u6709\u7684\u6807\u7b7e\u90fd\u5339\u914d\u4e0a\u4e86\u4e00\u4e2a\u6b63\u6837\u672c\u4e3a\u6b62\u3002\u4e0d\u8fc7\uff0c\u8fd9\u91cc\u4f1a\u6709\u4e00\u4e2a\u6f5c\u5728\u7684\u95ee\u9898\uff0c\u8981\u662f\u4e24\u4e2a\u7269\u4f53\u7684\u4e2d\u5fc3\u70b9\u90fd\u5728\u540c\u4e00\u4e2a\u7f51\u683c\uff0c\u4e14\u90fd\u5339\u914d\u5230\u4e86\u540c\u4e00\u4e2a\u9884\u6d4b\u6846\uff0c\u90a3\u4e48\u8fd9\u4e2a\u9884\u6d4b\u6846\u8be5\u5b66\u54ea\u4e2a\u6807\u7b7e\uff1f\u8fd9\u4e2a\u95ee\u9898\u662fYOLOv1\u65e0\u6cd5\u56de\u7b54\u7684\uff0c\u662fYOLOv1\u7684\u4e00\u4e2a\u7f3a\u9677\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7ee7\u7eed\u767d\u8bdd<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u8bf4\u7684\u5c31\u662fYOLOv1\u662f\u5982\u4f55\u5728\u8bad\u7ec3\u65f6\uff0c\u4ece\u591a\u4e2a\u9884\u6d4b\u6846\u4e2d\u9009\u51fa\u201c\u6700\u4f73\u5458\u5de5\u201d\u5e76\u7ed9\u5b83\u201c\u53d1\u5956\u91d1\u201d\uff08\u8ba1\u7b97\u635f\u5931\uff09\u7684\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfed \u6838\u5fc3\u6bd4\u55bb\uff1a\u5de5\u5382\u8d28\u68c0\u6d41\u7a0b<\/p>\n<\/blockquote>\n\n\n\n<p>\u60f3\u8c61\u4e00\u4e0b\uff0cYOLOv1\u7684\u7f51\u7edc\u5c31\u662f\u4e00\u4e2a\u8d28\u68c0\u5de5\u5382\u3002\u5b83\u7684\u4efb\u52a1\u662f\uff1a\u5728\u4e00\u5f20\u56fe\u7247\u4e0a\u7684\u6bcf\u4e2a\u6307\u5b9a\u533a\u57df\uff08\u7f51\u683c\uff09\uff0c\u68c0\u67e5\u91cc\u9762\u6709\u6ca1\u6709\u7455\u75b5\uff08\u7269\u4f53\uff09\uff0c\u5982\u679c\u6709\uff0c\u5c31\u753b\u4e2a\u6846\u6807\u51fa\u6765\uff0c\u5e76\u8bf4\u660e\u662f\u4ec0\u4e48\u7455\u75b5\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7f51\u683c\uff08Grid Cell\uff09\uff1a\u5de5\u5382\u7684\u4e00\u4e2a\u4e2a\u8d28\u68c0\u5de5\u4f4d\u3002<\/li>\n\n\n\n<li>\u9884\u6d4b\u6846\uff08Bounding Box\uff09\uff1a\u6bcf\u4e2a\u5de5\u4f4d\u6d3e\u51fa\u7684\u8d28\u68c0\u5458\uff0c\u8d1f\u8d23\u89c2\u5bdf\u548c\u62a5\u544a\u7455\u75b5\u8303\u56f4\u3002YOLOv1\u4e2d\uff0c\u6bcf\u4e2a\u5de5\u4f4d\u6709 B=2 \u4e2a\u8d28\u68c0\u5458\u3002<\/li>\n\n\n\n<li>\u771f\u5b9e\u6846\uff08Ground Truth\uff09\uff1a\u5df2\u77e5\u7455\u75b5\u8303\u56f4\u7684\u6807\u51c6\u7b54\u6848\u3002<\/li>\n\n\n\n<li>IoU\uff08\u4ea4\u5e76\u6bd4\uff09\uff1a\u8d28\u68c0\u5458\u753b\u7684\u6846\u548c\u6807\u51c6\u7b54\u6848\u6846\u7684\u91cd\u53e0\u7a0b\u5ea6\u3002IoU\u8d8a\u9ad8\uff0c\u8bf4\u660e\u8d28\u68c0\u5458\u753b\u5f97\u8d8a\u51c6\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udd27 \u56db\u6b65\u8d28\u68c0\u6d41\u7a0b\uff08\u5bf9\u5e94\u4f60\u7684\u56db\u4e2a\u6b65\u9aa4\uff09<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2705 \u7b2c\u4e00\u6b65\uff1a\u6d3e\u51fa\u8d28\u68c0\u5458<\/li>\n<\/ul>\n\n\n\n<p>\u5de5\u5382\u5728\u6bcf\u4e2a\u5de5\u4f4d\uff08\u7f51\u683c\uff09\u6d3e\u51fa B \u4e2a\u8d28\u68c0\u5458\uff08\u751f\u6210 B \u4e2a\u9884\u6d4b\u6846\uff09\uff0c\u6bcf\u4e2a\u8d28\u68c0\u5458\u90fd\u6839\u636e\u81ea\u5df1\u7684\u7ecf\u9a8c\u753b\u4e00\u4e2a\u6846\uff0c\u731c\u6d4b\u7455\u75b5\u7684\u8303\u56f4\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2705 \u7b2c\u4e8c\u6b65\uff1a\u5bf9\u6bd4\u6807\u51c6\u7b54\u6848<\/li>\n<\/ul>\n\n\n\n<p>\u5de5\u5382\u624b\u91cc\u6709\u6807\u51c6\u7b54\u6848\uff08\u771f\u5b9e\u6846\uff09\u3002\u73b0\u5728\uff0c\u8ba1\u7b97\u6bcf\u4e2a\u8d28\u68c0\u5458\u753b\u7684\u9884\u6d4b\u6846\u548c\u6807\u51c6\u7b54\u6848\u6846\u7684\u91cd\u53e0\u7a0b\u5ea6\uff08IoU\uff09\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>IoU = \u4ea4\u96c6\u9762\u79ef \/ \u5e76\u96c6\u9762\u79ef<\/li>\n\n\n\n<li>\u503c\u5728 0 \u5230 1 \u4e4b\u95f4\u30021\u8868\u793a\u5b8c\u5168\u91cd\u5408\uff0c0\u8868\u793a\u5b8c\u5168\u6ca1\u6709\u91cd\u53e0\u3002<\/li>\n\n\n\n<li>\u2705 \u7b2c\u4e09\u6b65\uff1a\u5956\u52b1\u6700\u4f73\u5458\u5de5\uff08\u8ba1\u7b97\u6b63\u6837\u672c\u635f\u5931\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u5de5\u5382\u6bd4\u8f83\u8fd9 B \u4e2a\u8d28\u68c0\u5458\uff08\u9884\u6d4b\u6846\uff09\u7684IoU\u6210\u7ee9\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6210\u7ee9\u6700\u9ad8\u7684\u90a3\u4e2a\u8d28\u68c0\u5458\uff0c\u88ab\u8bc4\u9009\u4e3a \u201c\u6b63\u6837\u672c\u201d\u3002\u5b83\u5c06\u83b7\u5f97\u4e30\u539a\u7684\u5956\u52b1\u548c\u5168\u9762\u7684\u57f9\u8bad\u3002<\/li>\n\n\n\n<li>\u5956\u52b1\u548c\u57f9\u8bad\uff08\u8ba1\u7b97\u635f\u5931\uff09\uff1a\u5de5\u5382\u4f1a\u4ece\u4e09\u4e2a\u65b9\u9762\u6765\u6307\u5bfc\u8fd9\u4f4d\u6700\u4f73\u8d28\u68c0\u5458\uff1a\n<ol class=\"wp-block-list\">\n<li>\u7f6e\u4fe1\u5ea6\uff08Confidence\uff09\uff1a\u5de5\u5382\u544a\u8bc9\u4ed6\uff1a\u201c\u4f60\u7684\u6846\u548c\u7b54\u6848\u6709XX%\u7684\u91cd\u5408\u5ea6\uff08IoU\u503c\uff09\uff0c\u6240\u4ee5\u4f60\u5bf9\u81ea\u5df1\u8fd9\u6b21\u5224\u5b9a\u7684\u81ea\u4fe1\u7a0b\u5ea6\u5c31\u5e94\u8be5\u662f\u8fd9\u4e2a\u5206\u6570\uff01\u201d \u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u7f6e\u4fe1\u5ea6\u7684\u5b66\u4e60\u76ee\u6807\u76f4\u63a5\u5c31\u662fIoU\u503c\u3002<\/li>\n\n\n\n<li>\u7c7b\u522b\uff08Class\uff09\uff1a\u5de5\u5382\u544a\u8bc9\u4ed6\uff1a\u201c\u4f60\u6846\u91cc\u7684\u8fd9\u4e2a\u4e1c\u897f\uff0c\u5b83\u7684\u6b63\u786e\u7c7b\u522b\u662fXXX\u3002\u201d<\/li>\n\n\n\n<li>\u6846\u7684\u4f4d\u7f6e\uff08Bbox\uff09\uff1a\u5de5\u5382\u4f1a\u5fae\u8c03\u4ed6\u753b\u7684\u6846\uff0c\u544a\u8bc9\u4ed6\uff1a\u201c\u6846\u7684\u4e2d\u5fc3\u5e94\u8be5\u518d\u5f80\u53f3\u4e00\u70b9\uff0c\u6846\u5e94\u8be5\u518d\u5bbd\u4e00\u70b9\u3002\u201d<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>\u274c \u7b2c\u56db\u6b65\uff1a\u6279\u8bc4\u5176\u4ed6\u5458\u5de5\uff08\u8ba1\u7b97\u8d1f\u6837\u672c\u635f\u5931\uff09<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u540c\u4e00\u4e2a\u5de5\u4f4d\u91cc\u6ca1\u88ab\u9009\u4e0a\u7684 B-1 \u4e2a\u8d28\u68c0\u5458\uff0c\u4ee5\u53ca\u5176\u4ed6\u6240\u6709\u5de5\u4f4d\u4e0a\u6839\u672c\u6ca1\u770b\u5230\u7455\u75b5\u7684\u8d28\u68c0\u5458\uff0c\u53ea\u4f1a\u53d7\u5230\u4e00\u70b9\u6279\u8bc4\uff1a\u5de5\u5382\u544a\u8bc9\u4ed6\u4eec\uff1a\u201c\u4f60\u4eec\u8fd9\u91cc\u6839\u672c\u6ca1\u6709\u4e1c\u897f\uff0c\u4f60\u4eec\u7684\u7f6e\u4fe1\u5ea6\u5e94\u8be5\u662f0\uff01\u201d<\/li>\n\n\n\n<li>\u4ed6\u4eec\u4e0d\u53c2\u4e0e\u5b66\u4e60\u753b\u6846\u548c\u5206\u7c7b\uff0c\u53ea\u5b66\u4e60\u201c\u627f\u8ba4\u81ea\u5df1\u770b\u9519\u4e86\u201d\uff08\u53ea\u8ba1\u7b97\u7f6e\u4fe1\u5ea6\u635f\u5931\uff0c\u4e14\u6807\u7b7e\u4e3a0\uff09\u3002<\/li>\n\n\n\n<li>\ud83e\udde9 \u4e3e\u4f8b\u8bf4\u660e<\/li>\n<\/ul>\n\n\n\n<p>\u5047\u8bbe\u4e00\u4e2a\u5de5\u4f4d\u7684\u4e24\u4e2a\u8d28\u68c0\u5458\uff08\u9884\u6d4b\u6846B1\u548cB2\uff09\u548c\u6807\u51c6\u7b54\u6848\u7684IoU\u5206\u522b\u662f 0.28 \u548c 0.12\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B1\uff08IoU=0.28\uff09 \u6210\u4e3a\u6b63\u6837\u672c\u3002\u5b83\u7684\u5b66\u4e60\u76ee\u6807\u662f\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7f6e\u4fe1\u5ea6 \u8981\u5b66\u4e60\u5230 0.28\u3002<\/li>\n\n\n\n<li>\u4f4d\u7f6e\u548c\u7c7b\u522b \u8981\u5411\u771f\u5b9e\u6846\u770b\u9f50\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>B2\uff08IoU=0.12\uff09 \u6210\u4e3a\u8d1f\u6837\u672c\u3002\u5b83\u53ea\u9700\u8981\u5b66\u4e60\u4e00\u4ef6\u4e8b\uff1a\u5c06\u81ea\u5df1\u7684\u7f6e\u4fe1\u5ea6\u964d\u4e3a 0\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u201c\u5018\u82e5bbox\u90fd\u5b66\u5f97\u4e0d\u597d\uff0c\u90a3\u4e48\u7b97\u51fa\u7684IoU\u4e5f\u5c31\u90fd\u4e0d\u9ad8\uff0c\u7f51\u7edc\u9884\u6d4b\u7684\u7f6e\u4fe1\u5ea6\u5b66\u51fa\u6765\u7684\u4e5f\u5c31\u504f\u4f4e\u3002\u201d<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8fd9\u5c31\u597d\u6bd4\u4e00\u7fa4\u8d28\u68c0\u5458\u4e1a\u52a1\u6c34\u5e73\u90fd\u4e0d\u884c\uff0c\u753b\u7684\u6846\u548c\u6807\u51c6\u7b54\u6848\u5dee\u8ddd\u5f88\u5927\uff0c\u56e0\u6b64\u4ed6\u4eec\u81ea\u5df1\u4e5f\u5fc3\u865a\uff0c\u4e0d\u6562\u8bf4\u81ea\u5df1\u770b\u5bf9\u4e86\uff08\u9884\u6d4b\u7684\u7f6e\u4fe1\u5ea6\u4f4e\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u201c\u4f46\u6362\u4e2a\u89d2\u5ea6\u6765\u770b\uff0c\u8fd9\u4e2a\u7f6e\u4fe1\u5ea6\u76f4\u63a5\u5c31\u80fd\u8861\u91cf\u5b9a\u4f4d\u7684\u597d\u574f\u3002\u201d<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8fd9\u6b63\u662fYOLOv1\u8bbe\u8ba1\u7684\u9ad8\u660e\u4e4b\u5904\uff01\u7f51\u7edc\u8f93\u51fa\u7684\u7f6e\u4fe1\u5ea6\u4e0d\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u201c\u6709\/\u65e0\u201d\u5224\u65ad\uff0c\u800c\u662f\u4e00\u4e2a\u540c\u65f6\u5305\u542b\u4e86\u201c\u6709\u65e0\u7269\u4f53\u201d\u548c\u201c\u6846\u5f97\u51c6\u4e0d\u51c6\u201d\u7684\u7efc\u5408\u8bc4\u5206\u3002 \u4e00\u4e2a\u5b8c\u7f8e\u7684\u9884\u6d4b\uff0c\u5e94\u8be5\u662f\u9ad8\u7f6e\u4fe1\u5ea6 + \u7c7b\u522b\u6b63\u786e + \u6846\u7684\u4f4d\u7f6e\u51c6\u3002<\/li>\n\n\n\n<li>\u26a0\ufe0f \u4f5c\u8005\u89c2\u70b9\u4e0e\u6a21\u578b\u7f3a\u9677<\/li>\n<\/ul>\n\n\n\n<p>\u4f5c\u8005\u8ba4\u4e3a\u201c\u4ee4B=1\uff0c\u7b80\u5355\u7701\u4e8b\u201d<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728YOLOv1\u4e2d\uff0c\u540c\u4e00\u4e2a\u5de5\u4f4d\u7684\u4e24\u4e2a\u8d28\u68c0\u5458\uff08\u4e24\u4e2a\u9884\u6d4b\u6846\uff09\u5728\u521d\u59cb\u5316\u65f6\u662f\u5b8c\u5168\u4e00\u6837\u7684\uff08\u5e73\u6743\uff09\uff0c\u6ca1\u6709\u5206\u5de5\u3002\u5b83\u4eec\u7eaf\u7cb9\u662f\u9760\u201c\u8fd0\u6c14\u201d\u548c\u8bad\u7ec3\u6570\u636e\u6765\u5206\u5316\uff0c\u770b\u8c01\u80fd\u66f4\u5feb\u5730\u5b66\u4f1a\u62df\u5408\u5404\u79cd\u5f62\u72b6\u3002<\/li>\n\n\n\n<li>\u4f5c\u8005\u89c9\u5f97\uff0c\u65e2\u7136\u8fd9\u6837\uff0c\u4e0d\u5982\u5c31\u53ea\u8bbe\u7f6e B=1\uff0c\u8ba9\u4e00\u4e2a\u6846\u4e13\u5fc3\u81f4\u5fd7\u5730\u53bb\u5b66\u4e60\uff0c\u6a21\u578b\u66f4\u7b80\u5355\uff0c\u53c2\u6570\u66f4\u5c11\u3002\u540e\u6765\u7684YOLO\u7248\u672c\uff08\u5982v2\uff09\u5f15\u5165\u4e86\u201c\u951a\u6846\u201d\uff08Anchor Boxes\uff09\uff0c\u5c31\u662f\u8ba9\u4e0d\u540c\u5f62\u72b6\u7684\u9884\u6d4b\u6846\u6709\u660e\u786e\u7684\u521d\u59cb\u5206\u5de5\uff0c\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\u3002<\/li>\n<\/ul>\n\n\n\n<p>YOLOv1\u7684\u7f3a\u9677\uff1a\u4e00\u4e2a\u5de5\u4f4d\u53ea\u80fd\u5904\u7406\u4e00\u4e2a\u7455\u75b5<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u4e24\u4e2a\u7455\u75b5\uff08\u7269\u4f53\uff09\u7684\u4e2d\u5fc3\u70b9\u6070\u597d\u90fd\u843d\u5728\u540c\u4e00\u4e2a\u5de5\u4f4d\uff08\u7f51\u683c\uff09 \u91cc\uff0c\u90a3\u4e48\u8fd9\u4e2a\u5de5\u4f4d\u5c31\u4f1a\u201c\u4e0d\u77e5\u6240\u63aa\u201d\uff0c\u56e0\u4e3a\u5b83\u53ea\u80fd\u9884\u6d4b\u4e00\u4e2a\u7269\u4f53\u3002 \u8fd9\u662fYOLOv1\u5728\u8bbe\u8ba1\u4e0a\u7684\u4e00\u4e2a\u56fa\u6709\u5c40\u9650\uff0c\u5bfc\u81f4\u5b83\u5728\u68c0\u6d4b\u5bc6\u96c6\u6216\u91cd\u53e0\u7269\u4f53\u65f6\u8868\u73b0\u8f83\u5dee\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u603b\u7ed3\u4e00\u4e0b\uff0c\u7f51\u7edc\u7684\u6700\u540e\u8f93\u51fa\u4e2d\uff0c\u6bcf\u4e2a\u6b63\u6837\u672c\u5019\u9009\u533a\u57df&nbsp;&nbsp;\u4f4d\u7f6e\u5904\u7684\u6bcf\u4e2abbox\u90fd\u5305\u542b\u5982\u4e0b\u53c2\u6570\uff1a<\/p>\n\n\n\n<p>\u6700\u540e\u518d\u52a0\u4e0a\u7c7b\u522b\uff1a<\/p>\n\n\n\n<p>\u7531\u8fd9\u4e9b\u53c2\u6570\uff0c\u8ba1\u7b97\u51fa\u76f8\u5e94\u77e9\u5f62\u6846\u7684\u4f4d\u7f6e\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u53c2\u6570\u8bf4\u660e<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u53c2\u6570\u7b26\u53f7<\/th><th>\u53c2\u6570\u540d\u79f0<\/th><th>\u542b\u4e49\u4e0e\u4f5c\u7528<\/th><\/tr><\/thead><tbody><tr><td><strong><code>C_box<\/code><\/strong><\/td><td>\u8fb9\u754c\u6846\u7f6e\u4fe1\u5ea6<\/td><td>\u8868\u793a<strong>\u8be5\u9884\u6d4b\u6846\u5185\u662f\u5426\u5b58\u5728\u7269\u4f53\u4ee5\u53ca\u9884\u6d4b\u7684\u51c6\u786e\u7a0b\u5ea6<\/strong>\u3002\u5176\u503c\u7531&nbsp;<code>Pr(object) \u00d7 IoU<\/code>&nbsp;\u8ba1\u7b97\u5f97\u5230\uff0c\u8303\u56f4\u57280\u52301\u4e4b\u95f4\u3002<code>Pr(object)<\/code>&nbsp;\u662f\u7f51\u683c\u5185\u5b58\u5728\u7269\u4f53\u7684\u6982\u7387\uff0c<code>IoU<\/code>&nbsp;\u662f\u9884\u6d4b\u6846\u4e0e\u771f\u5b9e\u6846\u7684\u4ea4\u5e76\u6bd4\u3002<strong>\u9ad8\u7684\u7f6e\u4fe1\u5ea6\u610f\u5473\u7740\u6a21\u578b\u4e0d\u4ec5\u8ba4\u4e3a\u6846\u5185\u6709\u7269\u4f53\uff0c\u800c\u4e14\u9884\u6d4b\u6846\u7684\u4f4d\u7f6e\u5f88\u51c6<\/strong>\u3002<\/td><\/tr><tr><td><strong><code>c_x<\/code><\/strong><\/td><td>\u4e2d\u5fc3\u70b9x\u5750\u6807\u504f\u79fb<\/td><td>\u9884\u6d4b\u7684\u8fb9\u754c\u6846<strong>\u4e2d\u5fc3\u70b9\u76f8\u5bf9\u4e8e\u5176\u6240\u5728\u7f51\u683c\u5de6\u4e0a\u89d2\u7684\u6a2a\u5411\u504f\u79fb\u91cf<\/strong>\u3002\u8fd9\u662f\u4e00\u4e2a\u5f52\u4e00\u5316\u503c\uff0c\u8303\u56f4\u57280\u52301\u4e4b\u95f4\u3002\u4f8b\u5982\uff0c0.5\u8868\u793a\u4e2d\u5fc3\u70b9\u4f4d\u4e8e\u7f51\u683c\u7684\u6c34\u5e73\u4e2d\u592e\u3002<\/td><\/tr><tr><td><strong><code>c_y<\/code><\/strong><\/td><td>\u4e2d\u5fc3\u70b9y\u5750\u6807\u504f\u79fb<\/td><td>\u9884\u6d4b\u7684\u8fb9\u754c\u6846<strong>\u4e2d\u5fc3\u70b9\u76f8\u5bf9\u4e8e\u5176\u6240\u5728\u7f51\u683c\u5de6\u4e0a\u89d2\u7684\u7eb5\u5411\u504f\u79fb\u91cf<\/strong>\u3002\u540c\u6837\u662f\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u5f52\u4e00\u5316\u503c\u30020.5\u8868\u793a\u4e2d\u5fc3\u70b9\u4f4d\u4e8e\u7f51\u683c\u7684\u5782\u76f4\u4e2d\u592e\u3002<\/td><\/tr><tr><td><strong><code>w<\/code><\/strong><\/td><td>\u5bbd\u5ea6\u6bd4\u4f8b<\/td><td>\u9884\u6d4b\u7684\u8fb9\u754c\u6846<strong>\u5bbd\u5ea6\u76f8\u5bf9\u4e8e\u6574\u4e2a\u56fe\u50cf\u5bbd\u5ea6\u7684\u6bd4\u4f8b<\/strong>\u3002\u5f52\u4e00\u5316\u503c\uff0c\u8303\u56f40~1\u3002\u4f8b\u59820.5\u8868\u793a\u6846\u7684\u5bbd\u5ea6\u662f\u56fe\u50cf\u5bbd\u5ea6\u7684\u4e00\u534a\u3002<\/td><\/tr><tr><td><strong><code>h<\/code><\/strong><\/td><td>\u9ad8\u5ea6\u6bd4\u4f8b<\/td><td>\u9884\u6d4b\u7684\u8fb9\u754c\u6846<strong>\u9ad8\u5ea6\u76f8\u5bf9\u4e8e\u6574\u4e2a\u56fe\u50cf\u9ad8\u5ea6\u7684\u6bd4\u4f8b<\/strong>\u3002\u5f52\u4e00\u5316\u503c\uff0c\u8303\u56f40~1\u3002\u4f8b\u59820.25\u8868\u793a\u6846\u7684\u9ad8\u5ea6\u662f\u56fe\u50cf\u9ad8\u5ea6\u7684\u56db\u5206\u4e4b\u4e00\u3002<\/td><\/tr><tr><td><strong><code>C_1, C_2, ..., C_20<\/code><\/strong><\/td><td>\u7c7b\u522b\u6982\u7387<\/td><td>\u8868\u793a<strong>\u8be5\u7f51\u683c\u5185\u7684\u7269\u4f53\u5206\u522b\u5c5e\u4e8e20\u4e2a\u7c7b\u522b\uff08\u4ee5PASCAL VOC\u6570\u636e\u96c6\u4e3a\u4f8b\uff09\u7684\u6982\u7387<\/strong>\u3002\u8fd9\u4e9b\u6982\u7387\u662f<strong>\u6761\u4ef6\u6982\u7387<\/strong>\uff0c\u5373\u57fa\u4e8e\u201c\u8be5\u7f51\u683c\u5185\u5b58\u5728\u7269\u4f53\u201d\u8fd9\u4e00\u6761\u4ef6\u3002\u6240\u6709\u7c7b\u522b\u7684\u6982\u7387\u4e4b\u548c\u4e3a1\u3002<strong>\u4e00\u4e2a\u7f51\u683c\u53ea\u9884\u6d4b\u4e00\u7ec4\u7c7b\u522b\u6982\u7387\uff0c\u5e76\u7531\u8be5\u7f51\u683c\u9884\u6d4b\u7684\u6240\u6709\u8fb9\u754c\u6846\u5171\u4eab<\/strong>\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\udde0 \u5173\u952e\u8865\u5145\u8bf4\u660e<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7f6e\u4fe1\u5ea6 (<code>C_box<\/code>) \u662f\u6838\u5fc3<\/strong>\uff1a\u5b83\u5de7\u5999\u5730\u5c06\u201c\u6709\u65e0\u7269\u4f53\u201d\u548c\u201c\u6846\u5f97\u51c6\u4e0d\u51c6\u201d\u4e24\u4e2a\u4fe1\u606f\u5408\u4e8c\u4e3a\u4e00\u3002<strong>\u6d4b\u8bd5\u65f6\uff0c\u6211\u4eec\u4f1a\u5c06\u6bcf\u4e2a\u6846\u7684\u7f6e\u4fe1\u5ea6\u00a0<code>C_box<\/code>\u00a0\u4e0e\u5176\u6700\u53ef\u80fd\u7684\u7c7b\u522b\u6982\u7387\u00a0<code>max(C_1, C_2, ..., C_20)<\/code>\u00a0\u76f8\u4e58\uff0c\u5f97\u5230\u6700\u7ec8\u7684\u201c\u7c7b\u522b\u7f6e\u4fe1\u5ea6\u5f97\u5206\u201d\uff0c\u7528\u4e8e\u8861\u91cf\u68c0\u6d4b\u7ed3\u679c\u7684\u53ef\u4fe1\u5ea6<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u5750\u6807\u5982\u4f55\u89e3\u7801<\/strong>\uff1a\u7f51\u7edc\u8f93\u51fa\u7684\u00a0<code>(c_x, c_y, w, h)<\/code>\u00a0\u662f\u76f8\u5bf9\u503c\uff0c\u9700\u8981\u8f6c\u6362\u56de\u56fe\u50cf\u4e0a\u7684\u7edd\u5bf9\u5750\u6807\u3002\n<ul class=\"wp-block-list\">\n<li><strong>\u4e2d\u5fc3\u70b9\u7edd\u5bf9\u5750\u6807<\/strong>:\u00a0<code>center_x = (grid_x + c_x) * stride<\/code>,\u00a0<code>center_y = (grid_y + c_y) * stride<\/code>\u3002\u5176\u4e2d\u00a0<code>grid_x<\/code>,\u00a0<code>grid_y<\/code>\u00a0\u662f\u7f51\u683c\u7684\u7d22\u5f15\uff08\u59820,1,2...\uff09\uff0c<code>stride<\/code>\u00a0\u662f\u7f51\u683c\u7684\u6b65\u957f\uff08\u56fe\u50cf\u5c3a\u5bf8\/\u7f51\u683c\u6570\uff0c\u5982448\/7=64\uff09\u3002<\/li>\n\n\n\n<li><strong>\u5bbd\u9ad8\u7edd\u5bf9\u503c<\/strong>:\u00a0<code>width = w * image_width<\/code>,\u00a0<code>height = h * image_height<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>YOLOv1\u7684\u5c40\u9650\u6027<\/strong>\uff1a\u7531\u4e8e\u6bcf\u4e2a\u7f51\u683c\u53ea\u9884\u6d4b<strong>\u4e00\u7ec4<\/strong>\u7c7b\u522b\u6982\u7387\uff0c\u5e76\u4e14\u53ea\u80fd\u68c0\u6d4b\u4e00\u4e2a\u7269\u4f53\uff0c\u8fd9\u5bfc\u81f4\u5b83\u5bf9<strong>\u5bc6\u96c6\u548c\u5c0f\u76ee\u6807<\/strong>\u7684\u68c0\u6d4b\u6548\u679c\u4e0d\u4f73\uff0c\u5bb9\u6613\u6f0f\u68c0\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u660e\u786e\u4e86\u5b66\u4e60\u76ee\u6807\u89c1\uff0c\u5236\u4f5c\u8bad\u7ec3\u6807\u7b7e\u4e5f\u5c31\u6e05\u695a\u4e86\u3002\u5728\u5236\u4f5c\u6807\u7b7e\u65f6\uff0c\u9075\u5faa\u5982\u4e0b\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol class=\"wp-block-list\">\n<li>\u9996\u5148\u8ba1\u7b97\uff0c\u4e2d\u5fc3\u70b9\u843d\u5165\u7684\u7f51\u683c\u4f4d\u7f6e\uff1a<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u00a0\u00a0\u4f4d\u7f6e\uff0c\u6211\u4eec\u8ba4\u4e3a\u6b64\u5904\u6709\u7269\u4f53\uff0c\u56e0\u6b64\u00a0\uff0c\u6b64\u5904\u5373\u4e3a\u6b63\u6837\u672c\uff0c\u5e76\u8ba1\u7b97\u91cf\u5316\u8bef\u5dee\u4e0e\u77e9\u5f62\u6846\u7684\u5bbd\u548c\u9ad8\uff1a<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u786e\u5b9a\u7c7b\u522b\u6807\u7b7e\u5373\u53ef\u3002<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<p>\u6700\u540e\uff0c\u6211\u4eec\u518d\u8bf4\u4e00\u4e0b\u635f\u5931\u51fd\u6570\u7684\u8bbe\u8ba1\uff0c\u76f4\u63a5\u4e0a\u56fe\uff1a\ud835\udfd9\ud835\udfd9\ud835\udfd9\ud835\udfd9\ud835\udfd9<\/p>\n\n\n\n<p>\u56fe\u4e2d\u7684\u7b2c\u4e00\u884c\u5173\u4e8e&nbsp;,&nbsp;\u7684\u635f\u5931\u8ba1\u7b97\uff0c\u539f\u6587\u4e2d\u7528\u7684\u662fx,y\u3002\u7b2c\u4e8c\u884c\u662f\u5173\u4e8ew,h\u7684\u635f\u5931\u8ba1\u7b97\u3002\u6ce8\u610f\uff0c\u8fd9\u4e24\u884c\u4e2d\u90fd\u7528\u4e00\u4e2a&nbsp;&nbsp;\u7b26\u53f7\uff0c\u8fd9\u4e2a\u7b26\u53f7\u8868\u793a\u6b63\u6837\u672c\uff0c\u5373\u53ea\u6709\u6b63\u6837\u672c\u624d\u4f1a\u8ba1\u7b97bbox\u7684\u635f\u5931\u548cclass\u635f\u5931\uff0c\u8d1f\u6837\u672c&nbsp;&nbsp;\u90fd\u53ea\u8ba1\u7b97\u7f6e\u4fe1\u5ea6\u635f\u5931\uff0c\u4e14\u7f6e\u4fe1\u5ea6\u635f\u5931\u7684\u6807\u7b7e\u4e3a0(\u539f\u6587\u516c\u5f0f\u4e2d\u6ca1\u6709\u76f4\u63a5\u6807\u51fa\u8fd9\u4e2a0)\u3002<\/p>\n\n\n\n<p>\u8fd9\u5c31\u4f1a\u5e26\u6765\u4e00\u4e2a\u95ee\u9898\uff1a\u53ea\u6709\u6b63\u6837\u672c\u624d\u4f1a\u53bb\u5b66\u4e60\u7c7b\u522b\u548c\u8fb9\u754c\u6846\uff0c\u800c\u8d1f\u6837\u672c\u4e0d\u53bb\u5b66\u4e60\uff0c\u90a3\u8d1f\u6837\u672c\u7684\u9884\u6d4b\u5c82\u4e0d\u5c31\u662f\u201c\u778e\u9884\u6d4b\u201d\u4e86\uff1f<\/p>\n\n\n\n<p>\u5176\u5b9e\uff0c\u8fd9\u4e2a\u95ee\u9898\u6ca1\u5173\u7cfb\u7684\uff0c\u635f\u5931\u51fd\u6570\u7684\u7b2c\u4e09\u884c\u548c\u7b2c\u56db\u884c\u5c31\u662f\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\uff0c\u4e5f\u5c31\u662f\u7f6e\u4fe1\u5ea6\u7684\u4f5c\u7528\u3002<\/p>\n\n\n\n<p>\u5728\u7b2c\u4e09\u884c\u4e2d\uff0c&nbsp;\u662f\u9884\u6d4b\u6846\u4e0e\u771f\u5b9e\u6846\u8ba1\u7b97\u7684&nbsp;\uff0c\u9884\u6d4b\u7684\u8d8a\u51c6\uff0c&nbsp;\u8d8a\u8d8b\u8fd1\u4e8e1\uff0c\u90a3\u4e48\u7f51\u7edc\u9884\u6d4b\u7684C\u4e5f\u5c31\u8d8a\u8d8b\u8fd1\u4e8e1\uff0c\u800c\u6ca1\u6709\u7269\u4f53\u7684\u5730\u65b9\uff0c\u4e5f\u5c31\u662f\u7b2c\u56db\u884c\uff0c\u5176\u4e2d\u7684&nbsp;&nbsp;\u90fd\u662f0(\u56e0\u4e3a\u8fd9\u4e9b\u5730\u65b9\u662f\u4e0d\u5e94\u8be5\u6709\u6846\u7684\uff0c\u6240\u4ee5\u76f4\u63a5\u8bbe\u4e3a0\u5373\u53ef)\uff0c\u90a3\u4e48\u7f51\u7edc\u5728\u8fd9\u4e9b\u5730\u65b9\u9884\u6d4b\u7684C\u4e5f\u5c31\u4f1a\u8d8b\u8fd1\u4e8e0\u3002<\/p>\n\n\n\n<p>\u5728\u6d4b\u8bd5\u7684\u65f6\u5019\uff0c\u6211\u4eec\u4f1a\u6709\u4f18\u5148\u770b\u7f6e\u4fe1\u5ea6\uff0c\u53ea\u6709\u7f6e\u4fe1\u5ea6\u9ad8\u7684\u5730\u65b9\u624d\u4f1a\u88ab\u8003\u8651\uff0c\u5176\u4ed6\u7684\u5730\u65b9\u5c31\u4e0d\u4f1a\u4e86\uff0c\u5b83\u8f93\u51fa\u600e\u6837\u7684bbox\u4e5f\u5c31\u90fd\u65e0\u6240\u8c13\u4e86\u3002<\/p>\n\n\n\n<p>\u901a\u5e38\uff0c\u7f6e\u4fe1\u5ea6\u9ad8\u7684\u5730\u65b9\u90fd\u4f1a\u5b66\u4e60\u5230\u6b63\u786e\u7684\u7269\u4f53\u77e5\u8bc6\uff0c\u8fd9\u4e9b\u5730\u65b9\u7684\u7c7b\u522b\u548c\u8fb9\u754c\u6846\u9884\u6d4b\u4e5f\u90fd\u662f\u6bd4\u8f83\u51c6\u786e\u7684\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0c\u6846\u7684\u7f6e\u4fe1\u5ea6\u7684\u672c\u8d28\u5c31\u662f\u4e00\u4e2a\u6709\u65e0\u7269\u4f53\u7684\u4e8c\u5206\u7c7b\uff0c\u5176\u4f5c\u7528\u5c31\u662f\u5224\u65ad\u6b64\u5904\u662f\u524d\u666f\u8fd8\u662f\u80cc\u666f\u3002<\/p>\n\n\n\n<p>\u53e6\u5916\uff0c\u5f88\u660e\u663e\uff0c\u4e00\u5f20\u56fe\u4e2d\uff0c\u6709\u7269\u4f53\u7684\u7f51\u683c\u6570\u76ee\u662f\u5c0f\u4e8e\u6ca1\u6709\u7269\u4f53\u7684\u7f51\u683c\u6570\u76ee\u7684\uff0c\u56e0\u6b64\uff0c\u4e3a\u4e86\u5e73\u8861\u4ed6\u4eec\u4e24\u4e2a\u7684\u635f\u5931\uff0c\u9700\u8981\u8d4b\u4e88\u4e0d\u540c\u7684\u6743\u91cd\uff0c\u6b63\u6837\u672c\u7684\u7f6e\u4fe1\u5ea6\u635f\u5931\u7684\u6743\u91cd\u7ed91\uff0c\u6ca1\u6709\u7269\u4f53\u7684\uff0c\u5373\u8d1f\u6837\u672c\u7684\u635f\u5931\u6743\u91cd\u7ed9&nbsp;\u3002<\/p>\n\n\n\n<p>\u6700\u540e\u7684\u7b2c\u4e94\u884c\uff0c\u5c31\u662f\u7c7b\u522b\u6982\u7387\u7684\u635f\u5931\u8ba1\u7b97\uff0c\u540c\u6837\uff0c\u6211\u4eec\u4e5f\u53ea\u8003\u8651\u6b63\u6837\u672c\u7684\u7c7b\u522b\u635f\u5931\uff0c\u5176\u4ed6\u5730\u65b9\u4e0d\u7ba1\u3002<\/p>\n\n\n\n<p>\u4ece\u4e0a\u9762\u7684\u635f\u5931\uff0c\u6211\u4eec\u53d1\u73b0\uff0c\u90fd\u662f\u7528MSE\u6765\u8ba1\u7b97\u7684\uff0c\u8fd9\u662f\u56e0\u4e3aYOLO-v1\u5173\u4e8e\u6846\u7684\u4e94\u4e2a\u53c2\u6570\u548c\u7c7b\u522b\u90fd\u662f\u7528\u7684\u662f\u7ebf\u6027\u51fd\u6570\uff08\u5168\u8fde\u63a5\u5c42\u4e0d\u52a0\u6fc0\u6d3b\u51fd\u6570\uff09\u6765\u505a\u7684\u9884\u6d4b\u3002\u81f3\u4e8e\u4e3a\u4ec0\u4e48YOLOv1\u7528\u7ebf\u6027\u51fd\u6570\u6765\u9884\u6d4b\uff0c\u800c\u4e0d\u662f\u7528softmax\uff0c\u54b1\u4e5f\u4e0d\u77e5\u9053\uff0c\u4e5f\u8bb8\u662f\u4e00\u79cd\u5386\u53f2\u95ee\u9898\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5728\u8fdb\u884c\u4e0b\u4e00\u6b65\u4e4b\u524d\uff0c\u6211\u4eec\u5f97\u627f\u8ba4YOLOv1\u7684\u635f\u5931\u51fd\u6570\u786e\u5b9e\u6709\u70b9\u590d\u6742\uff0c\u54b1\u4eec\u4e00\u6b65\u6b65\u628a\u5b83\u62c6\u5f00\u770b\u660e\u767d\u3002\u8fd9\u4e2a\u51fd\u6570\u5c31\u50cf\u662f\u7ed9\u6a21\u578b\u5236\u5b9a\u7684\u4e00\u4e2a\u201c\u7efc\u5408\u8bc4\u5206\u6807\u51c6\u201d\uff0c\u544a\u8bc9\u5b83\u54ea\u4e9b\u5730\u65b9\u505a\u5f97\u597d\uff0c\u54ea\u4e9b\u5730\u65b9\u9700\u8981\u6539\u8fdb\u3002<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u597d\u4e45\u6ca1\u6709\u770b\u8fc7\u8fd9\u4e48\u591a\u516c\u5f0f\u4e86\uff0c\u4e0d\u7740\u6025\uff0c\u6162\u6162\u6765\u68b3\u7406\u4e00\u4e0b\uff01<\/p>\n<\/blockquote>\n\n\n\n<p>\u4e3a\u4e86\u66f4\u76f4\u89c2\u5730\u7406\u89e3\u8fd9\u4e2a\u201c\u7efc\u5408\u8bc4\u5206\u6807\u51c6\u201d\uff0c\u5148\u901a\u8fc7\u4e00\u4e2a\u8868\u683c\u6765\u770b\u770b\u5b83\u7684\u5168\u8c8c\u548c\u6bcf\u4e2a\u90e8\u5206\u7684\u804c\u8d23\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u635f\u5931\u90e8\u5206<\/th><th>\u901a\u4fd7\u7406\u89e3<\/th><th>\u8d1f\u8d23\u5bf9\u8c61<\/th><th>\u4f5c\u7528<\/th><th>\u6743\u91cd\u7cfb\u6570 (\u7528\u610f)<\/th><\/tr><\/thead><tbody><tr><td><strong>\u7b2c\u4e00\u884c:&nbsp;<\/strong><\/td><td>\u9884\u6d4b\u6846\u4e2d\u5fc3\u70b9\uff08x, y\uff09\u7684\u8bef\u5dee<\/td><td>\u6b63\u6837\u672c<\/td><td>\u8ba9\u6a21\u578b\u5b66\u4f1a\u66f4\u51c6\u786e\u5730\u9884\u6d4b\u7269\u4f53\u4e2d\u5fc3\u70b9\u7684\u4f4d\u7f6e<\/td><td>&nbsp;(\u5f3a\u8c03\u5b9a\u4f4d\u51c6\u786e\u6027\u7684\u91cd\u8981\u6027)<\/td><\/tr><tr><td><strong>\u7b2c\u4e8c\u884c:&nbsp;<\/strong><\/td><td>\u9884\u6d4b\u6846\u5bbd\u9ad8\uff08w, h\uff09\u7684\u8bef\u5dee\uff08\u7ecf\u5e73\u65b9\u6839\u5904\u7406\uff09<\/td><td>\u6b63\u6837\u672c<\/td><td>\u8ba9\u6a21\u578b\u5b66\u4f1a\u66f4\u51c6\u786e\u5730\u9884\u6d4b\u7269\u4f53\u7684\u5bbd\u9ad8\uff0c\u5e76\u5bf9\u5c0f\u76ee\u6807\u7684\u8bef\u5dee\u66f4\u654f\u611f<\/td><td>&nbsp;(\u5f3a\u8c03\u5b9a\u4f4d\u51c6\u786e\u6027\u7684\u91cd\u8981\u6027)<\/td><\/tr><tr><td><strong>\u7b2c\u4e09\u884c:&nbsp;\ud835\udfd9<\/strong><\/td><td>\u6b63\u6837\u672c\u7684\u201c\u7f6e\u4fe1\u5ea6\u201d\u8bef\u5dee<\/td><td>\u6b63\u6837\u672c<\/td><td>\u8ba9\u6a21\u578b\u5bf9<strong>\u6709\u7269\u4f53<\/strong>\u7684\u9884\u6d4b\u6846\uff0c\u8f93\u51fa\u9ad8\u7684\u7f6e\u4fe1\u5ea6 (\u76ee\u6807\u662f\u5176\u4e0e\u771f\u5b9e\u6846\u7684IoU\u503c)<\/td><td>\u6743\u91cd\u4e3a1 (\u57fa\u51c6\u6743\u91cd)<\/td><\/tr><tr><td><strong>\u7b2c\u56db\u884c:&nbsp;\ud835\udfd9<\/strong><\/td><td>\u8d1f\u6837\u672c\u7684\u201c\u7f6e\u4fe1\u5ea6\u201d\u8bef\u5dee<\/td><td>\u8d1f\u6837\u672c<\/td><td>\u8ba9\u6a21\u578b\u5bf9<strong>\u6ca1\u6709\u7269\u4f53<\/strong>\u7684\u9884\u6d4b\u6846\uff0c\u8f93\u51fa\u4f4e\u7684\u7f6e\u4fe1\u5ea6 (\u76ee\u6807\u4e3a0)<\/td><td>&nbsp;(\u964d\u4f4e\u5927\u91cf\u8d1f\u6837\u672c\u7684\u5f71\u54cd\uff0c\u907f\u514d\u201c\u6ee5\u6740\u65e0\u8f9c\u201d)<\/td><\/tr><tr><td><strong>\u7b2c\u4e94\u884c:&nbsp;\ud835\udfd9<\/strong><\/td><td>\u7269\u4f53\u5206\u7c7b\u7684\u8bef\u5dee<\/td><td>\u6b63\u6837\u672c<\/td><td>\u8ba9\u6a21\u578b\u6b63\u786e\u5224\u65ad\u6709\u7269\u4f53\u7684\u7f51\u683c\u5185\u7684\u7269\u4f53\u7c7b\u522b<\/td><td>\u6743\u91cd\u4e3a1 (\u57fa\u51c6\u6743\u91cd)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83e\udde0 \u9010\u884c\u8be6\u89e3<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udccd \u7b2c\u4e00\u884c &amp; \u7b2c\u4e8c\u884c\uff1a\u8fb9\u754c\u6846\u4f4d\u7f6e\u635f\u5931 (\u53ea\u9488\u5bf9\u6b63\u6837\u672c) \u8fd9\u4e24\u884c\u8d1f\u8d23\u6559\u6a21\u578b<strong>\u5982\u4f55\u753b\u6846<\/strong>\u3002<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7b2c\u4e00\u884c<\/strong>\u8ba1\u7b97\u7684\u662f\u9884\u6d4b\u7684<strong>\u4e2d\u5fc3\u70b9\u5750\u6807\uff08x, y\uff09<\/strong>\u00a0\u548c\u771f\u5b9e\u7684\u4e2d\u5fc3\u70b9\u5750\u6807\u4e4b\u95f4\u7684\u5dee\u8ddd\u3002\u6a21\u578b\u9700\u8981\u5b66\u4e60\u5c06\u6846\u7684\u4e2d\u5fc3\u70b9\u5bf9\u51c6\u7269\u4f53\u3002<\/li>\n\n\n\n<li><strong>\u7b2c\u4e8c\u884c<\/strong>\u8ba1\u7b97\u7684\u662f\u9884\u6d4b\u7684<strong>\u5bbd\u5ea6\u548c\u9ad8\u5ea6\uff08w, h\uff09<\/strong>\u00a0\u4e0e\u771f\u5b9e\u7684\u5bbd\u9ad8\u4e4b\u95f4\u7684\u5dee\u8ddd\u3002\u8fd9\u91cc\u5bf9\u5bbd\u9ad8\u53d6\u4e86<strong>\u5e73\u65b9\u6839<\/strong>\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5982\u679c\u4e0d\u5904\u7406\uff0c\u5927\u6846\u7684\u5bbd\u9ad8\u8bef\u5dee\u4f1a\u8fdc\u5927\u4e8e\u5c0f\u6846\uff0c\u6a21\u578b\u4f1a\u56e0\u6b64\u66f4\u5173\u6ce8\u5927\u7269\u4f53\u800c\u5ffd\u7565\u5c0f\u7269\u4f53\u3002\u53d6\u5e73\u65b9\u6839\u540e\uff0c\u5927\u5c0f\u6846\u7684\u8bef\u5dee\u5c3a\u5ea6\u66f4\u63a5\u8fd1\uff0c\u8ba9\u6a21\u578b\u80fd<strong>\u5e73\u7b49\u5730\u5b66\u4e60\u5927\u5c0f\u7269\u4f53\u7684\u5b9a\u4f4d<\/strong>\u3002<\/li>\n\n\n\n<li>\ud835\udfd9\u00a0\u662f\u4e00\u4e2a<strong>\u6307\u793a\u51fd\u6570<\/strong>\uff0c\u53ea\u6709\u8d1f\u8d23\u9884\u6d4b\u7269\u4f53\u7684\u90a3\u4e2a<strong>\u6b63\u6837\u672c<\/strong>\u9884\u6d4b\u6846\uff08\u5373\u4e0e\u771f\u5b9e\u6846IoU\u6700\u5927\u7684\u90a3\u4e2a\uff09\u624d\u4f1a\u8ba1\u5165\u635f\u5931\uff0c\u5176\u4ed6\u6846\u5ffd\u7565\u3002<\/li>\n\n\n\n<li>\u00a0(\u901a\u5e38\u8bbe\u4e3a5) \u662f\u4e00\u4e2a\u6743\u91cd\u7cfb\u6570\uff0c<strong>\u653e\u5927\u5b9a\u4f4d\u635f\u5931\u7684\u91cd\u8981\u6027<\/strong>\uff0c\u544a\u8bc9\u6a21\u578b\u201c\u6846\u5f97\u51c6\u201d\u975e\u5e38\u5173\u952e\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2705 \u7b2c\u4e09\u884c &amp; \u7b2c\u56db\u884c\uff1a\u7f6e\u4fe1\u5ea6\u635f\u5931 (\u6b63\u8d1f\u6837\u672c\u90fd\u53c2\u4e0e) \u8fd9\u4e24\u884c\u8d1f\u8d23\u6559\u6a21\u578b<strong>\u5224\u65ad\u6846\u91cc\u6709\u6ca1\u6709\u7269\u4f53<\/strong>\u3002<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7b2c\u4e09\u884c\u9488\u5bf9\u6b63\u6837\u672c<\/strong>\uff1a\u76ee\u6807\u662f\u8ba9\u6a21\u578b\u4e3a\u6709\u7269\u4f53\u7684\u6846\u8f93\u51fa\u9ad8\u7f6e\u4fe1\u5ea6\u3002\u8fd9\u4e2a\u7f6e\u4fe1\u5ea6\u7684\u5b66\u4e60\u76ee\u6807\u4e0d\u662f\u7b80\u5355\u76841\uff0c\u800c\u662f<strong>\u9884\u6d4b\u6846\u4e0e\u771f\u5b9e\u6846\u7684IoU\u503c<\/strong>\uff08\u4ea4\u5e76\u6bd4\uff09\u3002IoU\u8d8a\u9ad8\uff0c\u8bf4\u660e\u6846\u5f97\u8d8a\u51c6\uff0c\u7f6e\u4fe1\u5ea6\u5c31\u5e94\u8be5\u8d8a\u9ad8\u3002\u8fd9\u6837\uff0c\u7f6e\u4fe1\u5ea6\u4e0d\u4ec5\u5305\u542b\u4e86\u201c\u6709\u65e0\u7269\u4f53\u201d\u7684\u4fe1\u606f\uff0c\u8fd8\u5305\u542b\u4e86<strong>\u5b9a\u4f4d\u8d28\u91cf<\/strong>\u7684\u4fe1\u606f\u3002<\/li>\n\n\n\n<li><strong>\u7b2c\u56db\u884c\u9488\u5bf9\u8d1f\u6837\u672c<\/strong>\uff1a\u76ee\u6807\u662f\u8ba9\u6a21\u578b\u4e3a\u6ca1\u6709\u7269\u4f53\u7684\u6846\u8f93\u51fa\u4f4e\u7f6e\u4fe1\u5ea6\uff08\u63a5\u8fd10\uff09\u3002\u00a0(\u901a\u5e38\u8bbe\u4e3a0.5) \u662f\u4e00\u4e2a\u6743\u91cd\u7cfb\u6570\uff0c<strong>\u524a\u5f31\u8d1f\u6837\u672c\u635f\u5931\u7684\u5f71\u54cd<\/strong>\u3002\u56e0\u4e3a\u4e00\u5f20\u56fe\u4e2d\u5927\u90e8\u5206\u7f51\u683c\u90fd\u662f\u6ca1\u6709\u7269\u4f53\u7684\uff0c\u5982\u679c\u4e0d\u964d\u4f4e\u6743\u91cd\uff0c\u8d1f\u6837\u672c\u4f1a\u201c\u6df9\u6ca1\u201d\u6b63\u6837\u672c\u7684\u635f\u5931\uff0c\u5bfc\u81f4\u6a21\u578b\u53d8\u5f97\u4fdd\u5b88\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfaf \u7b2c\u4e94\u884c\uff1a\u7c7b\u522b\u635f\u5931 (\u53ea\u9488\u5bf9\u6b63\u6837\u672c) \u8fd9\u4e00\u884c\u8d1f\u8d23\u6559\u6a21\u578b<strong>\u8bc6\u522b\u6846\u91cc\u7684\u7269\u4f53\u662f\u4ec0\u4e48<\/strong>\u3002<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53ea\u6709\u5728\u5305\u542b\u7269\u4f53\u4e2d\u5fc3\u70b9\u7684\u7f51\u683c\uff08\ud835\udfd9\uff09\u624d\u4f1a\u8ba1\u5165\u7c7b\u522b\u635f\u5931\u3002<\/li>\n\n\n\n<li>\u5b83\u7684\u76ee\u6807\u662f\u8ba9\u6a21\u578b\u8f93\u51fa\u7684\u7c7b\u522b\u6982\u7387\u5206\u5e03\u5c3d\u53ef\u80fd\u63a5\u8fd1\u771f\u5b9e\u7c7b\u522b\uff08\u4f8b\u5982\uff0c\u771f\u5b9e\u662f\u201c\u72d7\u201d\uff0c\u90a3\u4e48\u201c\u72d7\u201d\u5bf9\u5e94\u7684\u6982\u7387\u5c31\u5e94\u8be5\u63a5\u8fd11\uff0c\u5176\u4ed6\u7c7b\u522b\u63a5\u8fd10\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2753 \u56de\u7b54\u4f60\u7684\u7591\u95ee<\/p>\n<\/blockquote>\n\n\n\n<p><strong>\u201c\u53ea\u6709\u6b63\u6837\u672c\u5b66\u4e60\u7c7b\u522b\u548c\u8fb9\u754c\u6846\uff0c\u8d1f\u6837\u672c\u4e0d\u5c31\u778e\u9884\u6d4b\u4e86\u5417\uff1f\u201d<\/strong><strong>\u4e0d\u4f1a\u7684<\/strong>\uff0c\u8fd9\u6b63\u662fYOLOv1\u8bbe\u8ba1\u7684\u5de7\u5999\u4e4b\u5904\u3002<strong>\u8d1f\u6837\u672c\u867d\u7136\u4e0d\u5b66\u4e60\u5982\u4f55\u753b\u6846\u548c\u5206\u7c7b\uff0c\u4f46\u5b83\u5b66\u4e60\u4e00\u4e2a\u66f4\u91cd\u8981\u7684\u80fd\u529b\uff1a\u95ed\u5634\uff08\u8f93\u51fa\u4f4e\u7f6e\u4fe1\u5ea6\uff09<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u8bad\u7ec3\u65f6\uff0c\u8d1f\u6837\u672c\u7684\u552f\u4e00\u76ee\u6807\u5c31\u662f\u628a\u7f6e\u4fe1\u5ea6\u964d\u4e3a0\u3002<\/li>\n\n\n\n<li>\u5728\u9884\u6d4b\u65f6\uff0c\u6a21\u578b\u4f1a\u8f93\u51fa\u5927\u91cf\u6846\uff0c\u4f46\u6211\u4eec\u53ea\u5173\u5fc3\u90a3\u4e9b<strong>\u7f6e\u4fe1\u5ea6\u9ad8<\/strong>\u7684\u6846\u3002<\/li>\n\n\n\n<li>\u4e00\u4e2a\u8d1f\u6837\u672c\u6846\uff0c\u5373\u4f7f\u5b83\u80e1\u4e71\u753b\u4e86\u4e00\u4e2a\u6846\uff0c\u4f46\u53ea\u8981\u5b83\u7684\u7f6e\u4fe1\u5ea6\u5f88\u4f4e\uff08\u6bd4\u59820.1\uff09\uff0c\u6211\u4eec\u5728\u6700\u540e\u505a<strong>\u975e\u6781\u5927\u503c\u6291\u5236\uff08NMS\uff09<\/strong>\u00a0\u65f6\u5c31\u4f1a\u628a\u5b83\u8fc7\u6ee4\u6389\uff0c\u6839\u672c\u4e0d\u4f1a\u5f71\u54cd\u6700\u7ec8\u68c0\u6d4b\u7ed3\u679c\u3002<\/li>\n\n\n\n<li>\u800c\u4e00\u4e2a\u6b63\u6837\u672c\u6846\uff0c\u56e0\u4e3a\u5b83\u540c\u65f6\u5b66\u4e60\u4e86\u5982\u4f55\u7cbe\u51c6\u753b\u6846\u3001\u8bc6\u522b\u7c7b\u522b\u4ee5\u53ca\u8f93\u51fa\u9ad8\u7f6e\u4fe1\u5ea6\uff0c\u6240\u4ee5\u5b83\u7684\u9ad8\u7f6e\u4fe1\u5ea6\u662f\u6709\u610f\u4e49\u7684\uff0c\u6700\u7ec8\u4f1a\u88ab\u4fdd\u7559\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u201c\u4e3a\u4ec0\u4e48\u90fd\u7528\u5747\u65b9\u8bef\u5dee\uff08MSE\uff09\uff0c\u800c\u4e0d\u7528Softmax\uff1f\u201d<\/strong>\u8fd9\u66f4\u591a\u662fYOLOv1\u539f\u59cb\u8bba\u6587\u7684\u8bbe\u8ba1\u9009\u62e9\u3002MSE\u7528\u4e8e\u56de\u5f52\u5750\u6807\u548c\u7f6e\u4fe1\u5ea6\u662f\u81ea\u7136\u7684\u3002\u5bf9\u4e8e\u7c7b\u522b\u9884\u6d4b\uff0c\u867d\u7136\u73b0\u5728\u770b\u7528\u4ea4\u53c9\u71b5\u635f\u5931\u66f4\u5e38\u89c1\uff0c\u4f46YOLOv1\u4f5c\u8005\u5f53\u65f6\u9009\u62e9\u4e86MSE\u3002\u8fd9\u53ef\u80fd\u662f\u4e00\u79cd\u5386\u53f2\u5c40\u9650\uff0c\u540e\u6765\u7684YOLO\u7248\u672c\u4e5f\u6539\u8fdb\u4e86\u8fd9\u4e00\u70b9\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udc8e \u603b\u7ed3<\/p>\n<\/blockquote>\n\n\n\n<p>YOLOv1\u7684\u635f\u5931\u51fd\u6570\u662f\u4e00\u4e2a\u7cbe\u5fc3\u5e73\u8861\u7684\u7cfb\u7edf\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6b63\u6837\u672c<\/strong>\uff1a\u5168\u9762\u5b66\u4e60 \u2192\u00a0<strong>\u753b\u5f97\u51c6<\/strong>\uff08\u5b9a\u4f4d\uff09\u3001<strong>\u8ba4\u5f97\u5bf9<\/strong>\uff08\u5206\u7c7b\uff09\u3001<strong>\u8bf4\u5f97\u81ea\u4fe1<\/strong>\uff08\u9ad8\u7f6e\u4fe1\u5ea6\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8d1f\u6837\u672c<\/strong>\uff1a\u53ea\u5b66\u4e60\u4e00\u4ef6\u4e8b \u2192\u00a0<strong>\u4fdd\u6301\u8c26\u865a<\/strong>\uff08\u4f4e\u7f6e\u4fe1\u5ea6\uff09\uff0c\u907f\u514d\u5237\u5b58\u5728\u611f\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u901a\u8fc7\u8fd9\u79cd\u8bbe\u8ba1\uff0c\u6a21\u578b\u6700\u7ec8\u53ea\u4f1a\u90a3\u4e9b<strong>\u9ad8\u7f6e\u4fe1\u5ea6<\/strong>\u7684\u9884\u6d4b\u6846\uff0c\u800c\u8fd9\u4e9b\u6846\u901a\u5e38\u5c31\u662f\u5b66\u4e60\u6548\u679c\u597d\u7684\u6b63\u6837\u672c\uff0c\u4ece\u800c\u5b9e\u73b0\u4e86\u7aef\u5230\u7aef\u7684\u76ee\u6807\u68c0\u6d4b\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0a\uff0c\u4fbf\u662f\u6709\u5173\u4e8e\u8bad\u7ec3YOLO-v1\u7684\u5168\u90e8\u4e86\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u90a3\u4e48\uff0c\u5728\u6d4b\u8bd5\u7684\u65f6\u5019\u6211\u4eec\u5e94\u8be5\u600e\u4e48\u505a\u5462\uff1f<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>1.\u8ba1\u7b97bbox\u548c\u7c7b\u522b\uff1a<\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>2.\u8ba1\u7b97\u6bcf\u4e2a\u8fb9\u754c\u6846\u7684\u5f97\u5206\uff1a<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728YOLOv1\u4e2d\uff0c\u8fb9\u754c\u6846\u7684\u5f97\u5206score = 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