{"id":6787,"date":"2025-09-29T14:15:00","date_gmt":"2025-09-29T06:15:00","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=6787"},"modified":"2025-09-29T14:15:08","modified_gmt":"2025-09-29T06:15:08","slug":"yolo%e5%85%a5%e9%97%a8%e6%95%99%e7%a8%8b%ef%bc%88%e4%b8%89%ef%bc%89%ef%bc%9a%e6%94%b9%e8%bf%9byolov1","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%b8%89%ef%bc%89%ef%bc%9a%e6%94%b9%e8%bf%9byolov1\/","title":{"rendered":"YOLO\u5165\u95e8\u6559\u7a0b\uff08\u4e09\uff09\uff1a\u6539\u8fdbYOLOv1"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li>\u5b66\u4e60\u6559\u6848\uff1ahttps:\/\/zhuanlan.zhihu.com\/p\/364912692<\/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<p>\u5728\u4e0a\u4e00\u8282\uff0c\u6211\u4eec\u5df2\u7ecf\u5b66\u4e60\u4e86\u7ecf\u5178\u7684YOLOv1\u7684\u5185\u5bb9\uff0c\u5bf9\u5176\u8bba\u6587\u5c42\u9762\u7684\u6280\u672f\u505a\u4e86\u8be6\u7ec6\u7684\u4ecb\u7ecd\uff0c\u76f8\u4fe1\u8bfb\u8005\u5df2\u7ecf\u5bf9YOLOv1\u5df2\u7ecf\u6709\u4e86\u8db3\u591f\u7684\u611f\u6027\u8ba4\u8bc6\u548c\u4e00\u5b9a\u7684\u7406\u6027\u8ba4\u8bc6\uff0c\u4f46\u6240\u8c13\u201c\u7eb8\u4e0a\u5f97\u6765\u7ec8\u89c9\u6d45\u201d\uff0c\u4e3a\u4e86\u8fdb\u4e00\u6b65\u52a0\u6df1\u5bf9YOLOv1\u7684\u8ba4\u8bc6\uff0c\u6211\u4eec\u5c06\u4ece\u672c\u8282\u5f00\u59cb\uff0c\u5c55\u5f00\u5bf9YOLOv1\u7684\u4ee3\u7801\u5b9e\u8df5\u73af\u8282\u3002\u6211\u4eec\u5c06\u4f1a\u4f7f\u7528python\u8bed\u8a00\u548cpytorch\u6df1\u5ea6\u5b66\u4e60\u6846\u67b6\u53bb\u52a8\u624b\u5b9e\u73b0\u4e00\u6b3e\u6211\u4eec\u81ea\u5df1\u7684YOLOv1\u68c0\u6d4b\u5668\u3002<\/p>\n\n\n\n<p>\u7136\u800c\uff0cYOLOv1\u5de5\u4f5c\u592a\u8fc7\u4e45\u8fdc\u4e86\uff0c\u5176\u8bf8\u591a\u6280\u672f\u7ec6\u8282\u4ee5\u73b0\u5728\u7684\u773c\u5149\u6765\u770b\u5df2\u7ecf\u592a\u9648\u65e7\u4e86\uff0c\u5728\u7b14\u8005\u770b\u6765\uff0c\u4e00\u677f\u4e00\u773c\u5730\u3001\u5faa\u89c4\u8e48\u77e9\u5730\u5b9e\u73b0\u539f\u7248\u7684YOLOv1\u5e76\u6ca1\u6709\u591a\u5927\u7684\u610f\u4e49\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u5728\u4e0d\u8131\u79bbYOLOv1\u7684\u5927\u90e8\u5206\u6838\u5fc3\u7406\u5ff5\u7684\u524d\u63d0\u4e0b\uff0c\u91cd\u6784\u4e00\u6b3e\u8f83\u65b0\u7684YOLOv1\u68c0\u6d4b\u5668\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u66f4\u597d\u5730\u5b66\u4e60\u76f8\u5173\u7684\u4ee3\u7801\uff0c\u5efa\u8bae\u8bfb\u8005\u5c06\u9879\u76ee\u4ee3\u7801\u4e0b\u8f7d\u4e0b\u6765\uff0c\u76f8\u5173\u7684github\u94fe\u63a5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<figure class=\"wp-block-embed\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/github.com\/yjh0410\/RT-ODLab\/blob\/main\/README_CN.md\n<\/div><\/figure>\n<\/blockquote>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e00\u3001\u642d\u5efaYOLOv1<\/h1>\n\n\n\n<p>\u9996\u5148\uff0c\u653e\u4e0a\u4e00\u5f20\u6211\u4eec\u5c06\u8981\u642d\u5efa\u7684YOLOv1\u7684\u7f51\u7edc\u7ed3\u6784\u56fe\uff0c\u4ee5\u4fbf\u5728\u6b63\u5f0f\u5f00\u59cb\u4ee3\u7801\u5b9e\u8df5\u4e4b\u524d\uff0c\u80fd\u591f\u5bf9\u6211\u4eec\u6240\u8981\u505a\u7684\u4e8b\u60c5\u6709\u4e00\u4e2a\u6574\u4f53\u6027\u7684\u8ba4\u8bc6\uff0c\u5982\u4e0b\u56fe\u7684\u56fe1\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"399\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061423600-1024x399.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6788 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061423600-1024x399.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061423600-300x117.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061423600-768x299.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061423600.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"399\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061423600-1024x399.jpg\" alt=\"\" class=\"wp-image-6788\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061423600-1024x399.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061423600-300x117.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061423600-768x299.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061423600.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u6574\u4f53\u6765\u770b\uff0c\u6211\u4eec\u6240\u8981\u642d\u5efa\u7684YOLOv1\u4e00\u5171\u5305\u542b\u4e09\u5927\u90e8\u5206\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1\uff09\u63d0\u53d6\u8f93\u5165\u56fe\u50cfhigh-level\u7279\u5f81\u7684Backbone\u7f51\u7edc\uff1b<\/li>\n\n\n\n<li>2\uff09\u8fdb\u4e00\u6b65\u5904\u7406\u56fe\u50cf\u7279\u5f81\u3001\u63d0\u5347\u6a21\u578b\u611f\u53d7\u91ce\u7684Neck\u7f51\u7edc\uff1b<\/li>\n\n\n\n<li>3\uff09\u63d0\u53d6\u7528\u4e8e\u5206\u7c7b\u7684\u7c7b\u522b\u7279\u5f81\u548c\u7528\u4e8e\u5b9a\u4f4d\u7684\u4f4d\u7f6e\u7279\u5f81\u7684Detection head\uff1b<\/li>\n\n\n\n<li>4\uff09\u4ee5\u53ca\u6700\u7ec8\u7684\u9884\u6d4b\u5c42Prediction layer\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5f53\u7136\uff0c\u8fd9\u91cc\u76843\uff09\u548c4\uff09\u53ef\u4ee5\u7edf\u4e00\u79f0\u4e3a\u201c\u68c0\u6d4b\u5934\u201d\uff08Detection head\uff09\uff0c\u4e0d\u8fc7\uff0c\u4e3a\u4e86\u66f4\u7ec6\u81f4\u7684\u4ecb\u7ecd\uff0c\u6211\u4eec\u8fd8\u662f\u5c06\u8fd9\u4e24\u70b9\u5206\u5f00\u6765\u4ecb\u7ecd\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c55\u5f00\u4ecb\u7ecd\u6bcf\u4e00\u90e8\u5206\u7684\u8bbe\u8ba1\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1.1 Backbone\u7f51\u7edc<\/h2>\n\n\n\n<p>\u5b98\u65b9\u7684YOLOv1\u7684\u4e3b\u5e72\u7f51\u7edc\u662f\u53c2\u8003\u4e86GoogLeNet\u8bbe\u8ba1\u7684\uff08\u6ca1\u6709inception\u7ed3\u6784\uff09\uff0c\u8fd9\u91cc\u6211\u4eec\u76f4\u63a5\u66ff\u6362\u6210ResNet18\u3002\u5173\u4e8eResNet18\u7684\u7f51\u7edc\u7ed3\u6784\uff0c\u5982\u4e0b\u65b9\u7684\u56fe2\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"254\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061431356-1024x254.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6789 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061431356-1024x254.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061431356-300x74.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061431356-768x191.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061431356.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"254\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061431356-1024x254.jpg\" alt=\"\" class=\"wp-image-6789\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061431356-1024x254.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061431356-300x74.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061431356-768x191.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061431356.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>ResNet\u7cfb\u5217\u662f\u76ee\u524d\u6700\u53d7\u6b22\u8fce\u7684CNN\u7f51\u7edc\uff08\u51e0\u4e4e\u6ca1\u6709\u201c\u4e4b\u4e00\u201d\uff09\uff0c\u8be5\u7cfb\u5217\u5de5\u4f5c\u63d0\u51fa\u7684residual connection\u51e0\u4e4e\u6210\u4e3a\u4e86\u5f53\u524d\u795e\u7ecf\u7f51\u7edc\u8bbe\u8ba1\u7684\u51c6\u5219\u3002<\/p>\n\n\n\n<p>\u76f8\u8f83\u4e8e\u539f\u7248YOLOv1\u6240\u91c7\u7528\u7684GoogLeNet\u98ce\u683c\u7684\u4e3b\u5e72\u7f51\u7edc\uff0c\u6211\u4eec\u6240\u91c7\u7528\u7684ResNet-18\u66f4\u52a0\u8f7b\u91cf\u3001\u6027\u80fd\u66f4\u4f18\u3001\u901f\u5ea6\u66f4\u5feb\uff0c\u4e14\u7f51\u7edc\u7ed3\u6784\u8bbe\u8ba1\u66f4\u52a0\u5148\u8fdb\u3002<\/p>\n\n\n\n<p>\u5c31\u5165\u95e8\u800c\u8a00\uff0c\u4f7f\u7528ResNet-18\u5373\u53ef\uff0c\u611f\u5174\u8da3\u7684\u8bfb\u8005\u4e5f\u53ef\u5c1d\u8bd5\u4f7f\u7528\u66f4\u5927\u7684ResNet\u7f51\u7edc\uff0c\u5982ResNet50\u3001101\u7b49\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5c0f\u767d\u7b14\u8bb0<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u672f\u8bed<\/th><th>\u901a\u4fd7\u89e3\u91ca<\/th><\/tr><\/thead><tbody><tr><td><strong>CNN<\/strong><\/td><td>\u4e00\u79cd\u4e13\u95e8\u5904\u7406\u56fe\u50cf\u8fd9\u7c7b\u7f51\u683c\u6570\u636e\u7684\u795e\u7ecf\u7f51\u7edc\uff0c\u901a\u8fc7\u201c\u5377\u79ef\u6838\u201d\u5728\u56fe\u50cf\u4e0a\u6ed1\u52a8\u6765\u63d0\u53d6\u7279\u5f81\u3002<\/td><\/tr><tr><td><strong>ResNet<\/strong><\/td><td>\u4e00\u4e2a\u975e\u5e38\u8457\u540d\u7684\u6df1\u5ea6CNN\u5bb6\u65cf\uff0c\u5176<strong>\u6838\u5fc3\u521b\u65b0<\/strong>\u662f\u5f15\u5165\u4e86\u201c\u6b8b\u5dee\u8fde\u63a5\u201d\uff0c\u89e3\u51b3\u4e86\u6df1\u5c42\u7f51\u7edc\u96be\u8bad\u7ec3\u7684\u95ee\u9898\uff0c\u4f7f\u5f97\u6784\u5efa\u6210\u767e\u4e0a\u5343\u5c42\u7684\u7f51\u7edc\u6210\u4e3a\u53ef\u80fd\u3002<\/td><\/tr><tr><td><strong>Residual Connection<\/strong><\/td><td>ResNet\u7684<strong>\u6838\u5fc3\u8bbe\u8ba1<\/strong>\uff0c\u4e5f\u53eb\u201c\u8df3\u8dc3\u8fde\u63a5\u201d\u3002\u5b83\u50cf\u4e00\u6761\u201c\u6377\u5f84\u201d\uff0c\u8ba9\u8f93\u5165\u4fe1\u53f7\u53ef\u4ee5\u76f4\u63a5\u8df3\u5230\u540e\u9762\uff0c\u4e0e\u7ecf\u8fc7\u5c42\u5c42\u5904\u7406\u540e\u7684\u8f93\u51fa\u76f8\u52a0\u3002\u8fd9\u6781\u5927\u5730\u7f13\u89e3\u4e86\u68af\u5ea6\u6d88\u5931\u95ee\u9898\uff0c\u8ba9\u8d85\u6df1\u7f51\u7edc\u5f97\u4ee5\u8bad\u7ec3\u3002<\/td><\/tr><tr><td><strong>Backbone (\u4e3b\u5e72\u7f51\u7edc)<\/strong><\/td><td>\u5728\u76ee\u6807\u68c0\u6d4b\u7b49\u590d\u6742\u4efb\u52a1\u4e2d\uff0c\u4e13\u95e8\u8d1f\u8d23<strong>\u63d0\u53d6\u56fe\u50cf\u7279\u5f81<\/strong>\u7684\u90e8\u5206\u3002\u53ef\u4ee5\u7406\u89e3\u4e3a\u7f51\u7edc\u7684\u201c\u773c\u775b\u201d\uff0c\u540e\u7eed\u7684\u201c\u68c0\u6d4b\u5934\u201d\u7b49\u90e8\u5206\u518d\u57fa\u4e8e\u8fd9\u4e9b\u7279\u5f81\u8fdb\u884c\u5206\u6790\u3002<\/td><\/tr><tr><td><strong>GoogLeNet<\/strong><\/td><td>\u4e00\u79cd\u5728ResNet\u4e4b\u524d\u63d0\u51fa\u7684\u7ecf\u5178\u6df1\u5ea6CNN\uff0c\u5176\u7279\u70b9\u662f\u4f7f\u7528\u4e86\u590d\u6742\u7684\u201cInception\u201d\u6a21\u5757\u6765\u9ad8\u6548\u5229\u7528\u8ba1\u7b97\u8d44\u6e90\u3002YOLOv1\u501f\u9274\u4e86\u5b83\u7684\u8bbe\u8ba1\u3002<\/td><\/tr><tr><td><strong>ResNet-18<\/strong><\/td><td>ResNet\u5bb6\u65cf\u4e2d\u7684<strong>\u8f7b\u91cf\u7ea7\u6210\u5458<\/strong>\u3002\u6570\u5b5718\u4ee3\u8868\u5176\u201c\u6df1\u5ea6\u201d\uff08\u5e26\u53c2\u6570\u5c42\u7684\u6570\u91cf\uff09\u3002\u5b83\u7ed3\u6784\u76f8\u5bf9\u7b80\u5355\uff0c\u53c2\u6570\u5c11\uff0c\u8ba1\u7b97\u5feb\uff0c\u9002\u5408\u5165\u95e8\u6216\u8ba1\u7b97\u8d44\u6e90\u6709\u9650\u7684\u573a\u666f\u3002<\/td><\/tr><tr><td><strong>ResNet-50\/101<\/strong><\/td><td>ResNet\u5bb6\u65cf\u4e2d<strong>\u66f4\u6df1\u7684\u7248\u672c<\/strong>\u3002\u5b83\u4eec\u4f7f\u7528\u4e86\u66f4\u590d\u6742\u7684\u201c\u74f6\u9888\u7ed3\u6784\u201d\u6765\u51cf\u5c11\u8ba1\u7b97\u91cf\uff0c\u7279\u5f81\u63d0\u53d6\u80fd\u529b\u66f4\u5f3a\uff0c\u7cbe\u5ea6\u66f4\u9ad8\uff0c\u4f46\u540c\u65f6\u4e5f\u66f4\u6162\u3001\u66f4\u5360\u8d44\u6e90\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&nbsp;<strong>\u6838\u5fc3\u6982\u5ff5\u8be6\u89e3<\/strong><\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CNN (\u5377\u79ef\u795e\u7ecf\u7f51\u7edc)<\/strong>\uff1a\u4f60\u53ef\u4ee5\u628a\u5b83\u60f3\u8c61\u6210\u4e00\u4e2a\u975e\u5e38\u6311\u5254\u7684\u201c\u627e\u832c\u4e13\u5bb6\u201d\u3002\u5b83\u624b\u91cc\u6709\u5f88\u591a\u79cd\u4e0d\u540c\u7684\u201c\u5c0f\u6a21\u677f\u201d\uff08\u5377\u79ef\u6838\uff09\uff0c\u6bd4\u5982\u4e13\u95e8\u627e\u201c\u6a2a\u7ebf\u201d\u7684\u3001\u627e\u201c\u7ad6\u7ebf\u201d\u7684\u3001\u627e\u201c\u5c0f\u5706\u5708\u201d\u7684\u3002\u5b83\u628a\u8fd9\u4e9b\u6a21\u677f\u5728\u56fe\u7247\u4e0a\u4e00\u4e2a\u4e2a\u5730\u65b9\u53bb\u6bd4\u5bf9\uff0c\u53ea\u8981\u53d1\u73b0\u67d0\u4e2a\u5730\u65b9\u548c\u6a21\u677f\u5f88\u50cf\uff0c\u5c31\u6807\u8bb0\u51fa\u6765\u3002\u4e00\u5c42\u5c42\u4e0b\u6765\uff0c\u5c31\u4ece\u6700\u7b80\u5355\u7684\u201c\u8fb9\u7f18\u201d\u3001\u201c\u7eb9\u7406\u201d\u627e\u8d77\uff0c\u6700\u540e\u7ec4\u5408\u6210\u66f4\u590d\u6742\u7684\u201c\u773c\u775b\u201d\u3001\u201c\u8f6e\u5b50\u201d\u7b49\u7279\u5f81\u3002<\/li>\n\n\n\n<li><strong>Residual Connection (\u6b8b\u5dee\u8fde\u63a5\/\u8df3\u8dc3\u8fde\u63a5)<\/strong>\uff1a\u8fd9\u662fResNet\u7684<strong>\u7075\u9b42\u6240\u5728<\/strong>\u3002\u5728\u4f20\u7edf\u7f51\u7edc\u91cc\uff0c\u6570\u636e\u5fc5\u987b\u4e00\u5c42\u4e00\u5c42\u5730\u8fc7\uff0c\u5c31\u50cf\u722c\u4e00\u4e2a\u6ca1\u6709\u4f11\u606f\u5e73\u53f0\u7684\u697c\u68af\uff0c\u8d8a\u722c\u8d8a\u7d2f\uff08<strong>\u68af\u5ea6\u6d88\u5931<\/strong>\uff09\uff0c\u800c\u4e14\u53ef\u80fd\u722c\u4e86\u534a\u5929\u53d1\u73b0\u8fd8\u6ca1\u539f\u6765\u7ad9\u5f97\u9ad8\uff08<strong>\u7f51\u7edc\u9000\u5316<\/strong>\uff09\u3002 \u6b8b\u5dee\u8fde\u63a5\u5219\u662f\u5728\u697c\u68af\u4e2d\u95f4\u67b6\u4e86\u5f88\u591a\u201c<strong>\u6ed1\u68af<\/strong>\u201d\u6216\u201c<strong>\u6377\u5f84<\/strong>\u201d\u3002\u5982\u679c\u67d0\u4e00\u5c42\u7684\u5b66\u4e60\u6548\u679c\u4e0d\u597d\uff0c\u6216\u8005\u68af\u5ea6\u4f20\u9012\u4e0d\u8fc7\u6765\u4e86\uff0c\u6570\u636e\u53ef\u4ee5\u76f4\u63a5\u4ece\u201c\u6ed1\u68af\u201d\u6e9c\u4e0b\u53bb\uff0c\u81f3\u5c11\u80fd\u4fdd\u8bc1\u4fe1\u606f\u4e0d\u4f1a\u6bd4\u539f\u6765\u66f4\u5dee\u3002\u8fd9\u4f7f\u5f97\u6784\u5efa\u975e\u5e38\u6df1\u7684\u7f51\u7edc\uff08\u5982ResNet-101, ResNet-152\uff09\u6210\u4e3a\u53ef\u80fd\uff0c\u5e76\u4e14\u6027\u80fd\u66f4\u597d\u3002<\/li>\n\n\n\n<li><strong>Backbone (\u4e3b\u5e72\u7f51\u7edc)<\/strong>\uff1a\u597d\u6bd4\u4e00\u4e2a<strong>\u7279\u5f81\u63d0\u53d6\u6d41\u6c34\u7ebf<\/strong>\u3002\u5b83\u7684\u4efb\u52a1\u5c31\u662f\u63a5\u6536\u4e00\u5f20\u539f\u59cb\u56fe\u7247\uff0c\u7136\u540e\u901a\u8fc7\u5c42\u5c42\u5377\u79ef\u64cd\u4f5c\uff0c\u63d0\u70bc\u51fa\u5176\u4e2d\u6700\u6709\u7528\u7684\u3001\u4e0d\u540c\u5c42\u7ea7\u7684\u7279\u5f81\u4fe1\u606f\uff08\u4f8b\u5982\uff0c\u6d45\u5c42\u7279\u5f81\u53ef\u80fd\u662f\u8fb9\u7f18\u3001\u989c\u8272\uff0c\u6df1\u5c42\u7279\u5f81\u53ef\u80fd\u662f\u7269\u4f53\u7684\u90e8\u4ef6\u6216\u6574\u4f53\u5f62\u72b6\uff09\u3002\u8fd9\u4e9b\u63d0\u70bc\u597d\u7684\u7279\u5f81\u4f1a\u4ea4\u7ed9\u540e\u7eed\u4e13\u95e8\u8d1f\u8d23\u201c\u5206\u7c7b\u201d\u6216\u201c\u68c0\u6d4b\u4f4d\u7f6e\u201d\u7684\u6a21\u5757\uff08\u79f0\u4e3aHead\uff09\u53bb\u4f7f\u7528\u3002\u5f88\u591a\u590d\u6742\u7684\u89c6\u89c9\u7cfb\u7edf\uff08\u5982\u76ee\u6807\u68c0\u6d4b\u3001\u56fe\u50cf\u5206\u5272\uff09\u90fd\u4f1a\u9009\u7528\u4e00\u4e2a\u6210\u719f\u7684CNN\uff08\u5982ResNet\u3001VGG\uff09\u4f5c\u4e3a\u5b83\u7684Backbone\u3002<\/li>\n\n\n\n<li><strong>ResNet-18 vs. ResNet-50\/101<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>ResNet-18<\/strong>\uff1a\u50cf\u4e00\u8f86<strong>\u7075\u6d3b\u7684\u5c0f\u8f7f\u8f66<\/strong>\u3002\u5b83\u7684\u5c42\u6570\u8f83\u5c11\uff0818\u5c42\uff09\uff0c\u4f7f\u7528\u57fa\u672c\u7684\u6b8b\u5dee\u5757\uff08\u4e24\u4e2a3x3\u5377\u79ef\uff09\u3002\u4f18\u70b9\u662f<strong>\u53c2\u6570\u5c11\u3001\u8bad\u7ec3\u5feb\u3001\u5360\u8d44\u6e90\u5c11<\/strong>\uff0c\u975e\u5e38\u9002\u5408<strong>\u5165\u95e8\u5b66\u4e60<\/strong>\u3001<strong>\u5feb\u901f\u5b9e\u9a8c<\/strong>\u6216\u5728<strong>\u624b\u673a\u3001\u5d4c\u5165\u5f0f\u8bbe\u5907<\/strong>\u4e0a\u90e8\u7f72\u3002\u5bf9\u4e8e\u5f88\u591a\u4e0d\u592a\u590d\u6742\u7684\u4efb\u52a1\uff0c\u5b83\u7684\u6027\u80fd\u5df2\u7ecf\u8db3\u591f\u597d\u4e86\u3002<\/li>\n\n\n\n<li><strong>ResNet-50\/101<\/strong>\uff1a\u50cf<strong>\u91cd\u578b\u5361\u8f66\u6216\u6316\u6398\u673a<\/strong>\u3002\u5b83\u4eec\u66f4\u6df1\uff0850\u5c42\/101\u5c42\uff09\uff0c\u4f7f\u7528\u4e86\u66f4\u5148\u8fdb\u7684\u201c<strong>\u74f6\u9888\u7ed3\u6784<\/strong>\u201d\uff08Bottleneck\uff0c\u75311x1\u30013x3\u30011x1\u4e09\u4e2a\u5377\u79ef\u7ec4\u6210\uff09\uff0c\u867d\u7136\u53c2\u6570\u91cf\u548c\u8ba1\u7b97\u91cf\u66f4\u5927\uff0c\u4f46<strong>\u7279\u5f81\u63d0\u53d6\u80fd\u529b\u66f4\u5f3a\uff0c\u5728\u5927\u578b\u6570\u636e\u96c6\uff08\u5982ImageNet\uff09\u4e0a\u7684\u7cbe\u5ea6\u66f4\u9ad8<\/strong>\u3002\u901a\u5e38\u7528\u4e8e\u5bf9\u7cbe\u5ea6\u8981\u6c42\u6781\u9ad8\u7684\u5b66\u672f\u7814\u7a76\u6216\u590d\u6742\u5de5\u4e1a\u573a\u666f\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\udca1&nbsp;<strong>\u4e00\u70b9\u989d\u5916\u7684\u7406\u89e3<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p>\u539f\u6587\u8bf4ResNet-18\u6bd4YOLOv1\u7684GoogLeNet\u98ce\u683c\u4e3b\u5e72\u201c\u66f4\u8f7b\u91cf\u3001\u6027\u80fd\u66f4\u4f18\u3001\u901f\u5ea6\u66f4\u5feb\uff0c\u4e14\u7f51\u7edc\u7ed3\u6784\u8bbe\u8ba1\u66f4\u52a0\u5148\u8fdb\u201d\uff0c\u8fd9\u4e3b\u8981\u662f\u56e0\u4e3a\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6b8b\u5dee\u8fde\u63a5<\/strong>\u7684\u8bbe\u8ba1\u662f\u795e\u7ecf\u7f51\u7edc\u67b6\u6784\u7684\u4e00\u4e2a<strong>\u91cd\u5927\u7a81\u7834<\/strong>\uff0c\u5b83\u89e3\u51b3\u4e86\u6df1\u5c42\u7f51\u7edc\u7684\u6839\u672c\u6027\u8bad\u7ec3\u96be\u9898\uff0c\u6bd4\u4e4b\u524d\u7684\u8bb8\u591a\u7ed3\u6784\uff08\u5305\u62ecGoogLeNet\u7684Inception\uff09\u90fd\u66f4<strong>\u6709\u6548\u548c\u4f18\u96c5<\/strong>\u3002<\/li>\n\n\n\n<li>\u56e0\u6b64\uff0c\u5373\u4f7f\u662f\u4e00\u4e2a\u76f8\u5bf9\u8f83\u6d45\u7684ResNet\uff08\u5982ResNet-18\uff09\uff0c\u51ed\u501f\u5176\u66f4\u5148\u8fdb\u7684\u67b6\u6784\uff0c\u4e5f\u80fd\u5728\u66f4\u5c11\u7684\u53c2\u6570\u548c\u8ba1\u7b97\u91cf\u4e0b\uff0c\u8fbe\u5230\u751a\u81f3\u8d85\u8fc7\u4e4b\u524d\u66f4\u590d\u6742\u7f51\u7edc\u7684\u6027\u80fd\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">1.2 Neck\u7f51\u7edc<\/h2>\n\n\n\n<p>\u5728\u539f\u7248\u7684YOLOv1\u4e2d\uff0c\u662f\u6ca1\u6709Neck\u7f51\u7edc\u7684\u6982\u5ff5\u7684\uff0c\u4f46\u968f\u7740\u76ee\u6807\u68c0\u6d4b\u9886\u57df\u7684\u53d1\u5c55\uff0c\u76f8\u5173\u6846\u67b6\u7684\u6210\u719f\uff0c\u4e00\u4e2a\u901a\u7528\u76ee\u6807\u68c0\u6d4b\u7f51\u7edc\u7ed3\u6784\u53ef\u4ee5\u88ab\u5212\u5206\u4e3aBackbone\u3001Neck\u3001Head\u4e09\u5927\u90e8\u5206\u3002<\/p>\n\n\n\n<p>\u5f53\u524d\u7684YOLO\u5de5\u4f5c\u4e5f\u7b26\u5408\u8fd9\u4e00\u8bbe\u8ba1\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0c\u6211\u4eec\u4e0d\u59a8\u9075\u5faa\u5f53\u524d\u4e3b\u6d41\u7684\u8bbe\u8ba1\u7406\u5ff5\uff0c\u4e3a\u6211\u4eec\u7684YOLOv1\u6dfb\u52a0\u4e00\u4e2aNeck\u7f51\u7edc\u3002\u8fd9\u91cc\uff0c\u6211\u4eec\u9009\u62e9YOLO\u7cfb\u5217\u4e00\u76f4\u4ee5\u6765\u90fd\u5f88\u949f\u7231\u7684<strong>SPP\u6a21\u5757<\/strong>\uff0c\u5176\u7f51\u7edc\u7ed3\u6784\u5982\u4e0b\u65b9\u7684\u56fe3\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"634\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061439573-1024x634.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6790 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061439573-1024x634.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061439573-300x186.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061439573-768x476.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061439573.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"634\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061439573-1024x634.jpg\" alt=\"\" class=\"wp-image-6790\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061439573-1024x634.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061439573-300x186.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061439573-768x476.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061439573.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>YOLO\u6240\u91c7\u7528\u7684SPP\u6a21\u5757\u7684\u8bbe\u8ba1\u5341\u5206\u7b80\u5355\uff0c\u91c7\u7528\u4e86\u56db\u6761\u5e76\u884c\u7684Maxpooling\u5206\u652f\uff0cpooling kernel\u7684\u5927\u5c0f\u5206\u522b\u4e3a1x1\u30015x5\u30019x9\u300113x13\uff0c\u5176\u4e2d\u76841x1\u5206\u652f\u672c\u8d28\u5c31\u662f\u6052\u7b49\u53d8\u6362\u3002<\/p>\n\n\n\n<p>\u5f53\u56db\u6761\u5e76\u884c\u7684\u5206\u652f\u90fd\u5b8c\u6210\u8ba1\u7b97\u540e\uff0c\u5c06\u56db\u4e2a\u5206\u652f\u7684\u7ed3\u679c\u6cbf\u901a\u9053\u62fc\u63a5\u5728\u4e00\u8d77\uff0c\u6700\u540e\u7528\u4e00\u5c421x1\u7684\u5377\u79ef\u505a\u4e00\u6b21\u6620\u5c04\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1.3 Detection Head\u7f51\u7edc<\/h2>\n\n\n\n<p>\u539f\u7248\u7684YOLOv1\u91c7\u7528\u4e86\u5168\u8fde\u63a5\u5c42\u6765\u5b8c\u6210\u6700\u7ec8\u7684\u5904\u7406\uff0c\u5373\u5c06\u6b64\u524d\u5377\u79ef\u8f93\u51fa\u7684\u4e8c\u7ef4 H x W \u7279\u5f81\u56fe\u62c9\u5e73\uff08flatten\u64cd\u4f5c\uff09\u6210\u4e00\u7ef4 HW \u5411\u91cf\uff0c\u7136\u540e\u63a5\u5168\u8fde\u63a5\u5c42\u5f97\u52304096\u7ef4\u7684\u4e00\u7ef4\u5411\u91cf\u3002https:\/\/wxa.wxs.qq.com\/tmpl\/oc\/base_tmpl.html<\/p>\n\n\n\n<p>\u5728\u6b64\u524d\u7684YOLOv1\u8bba\u6587\u8bb2\u89e3\u7684\u7ae0\u8282\u91cc\uff0c\u6211\u4eec\u4e5f\u63d0\u5230\u4e86\u6709\u5173\u8fd9\u4e00\u64cd\u4f5c\u7684\u5f0a\u75c5\uff0c\u56e0\u6b64\uff0c\u6211\u4eec\u629b\u6389\u8fd9\u91cc\u7684flatten\u64cd\u4f5c\uff0c\u6539\u7528\u5f53\u4e0b\u4e3b\u6d41\u7684<strong>\u57fa\u4e8e\u5377\u79ef\u7684\u68c0\u6d4b\u5934<\/strong>\u3002<\/p>\n\n\n\n<p>\u5177\u4f53\u6765\u8bf4\uff0c\u6211\u4eec\u4f7f\u7528\u666e\u904d\u7528\u5728RetinaNet\u3001FCOS\u3001YOLOX\u7b49\u901a\u7528\u76ee\u6807\u68c0\u6d4b\u7f51\u7edc\u4e2d\u7684\u201c\u89e3\u8026\u68c0\u6d4b\u5934\u201d\uff08Decoupled head\uff09\uff0c\u5373\u4f7f\u7528\u4e24\u6761\u5e76\u884c\u7684\u5206\u652f\uff0c\u5206\u522b\u7528\u4e8e\u63d0\u53d6\u7c7b\u522b\u7279\u5f81\u548c\u4f4d\u7f6e\u7279\u5f81\uff0c\u4e24\u6761\u5206\u652f\u90fd\u7531\u5377\u79ef\u5c42\u6784\u6210\u3002\u56fe4\u5c55\u793a\u4e86\u6211\u4eec\u6240\u91c7\u7528\u7684Decoupled head\u7ed3\u6784\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5c0f\u767d\u7b14\u8bb0<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u68c0\u6d4b\u5934\u7c7b\u578b<\/th><th>\u4ee3\u8868\u6a21\u578b<\/th><th>\u6838\u5fc3\u601d\u60f3<\/th><th>\u5206\u7c7b\u4e0e\u56de\u5f52\u5206\u652f\u5173\u7cfb<\/th><th>\u4e3b\u8981\u7279\u70b9\u4e0e\u4f18\u52bf<\/th><th>\u6f5c\u5728\u5c40\u9650<\/th><\/tr><\/thead><tbody><tr><td><strong>\u8026\u5408\u5934 (Coupled)<\/strong><\/td><td>Faster R-CNN, \u539f\u59cb YOLO, RetinaNet (\u90e8\u5206\u5171\u4eab)<\/td><td>\u5206\u7c7b\u548c\u56de\u5f52\u4efb\u52a1<strong>\u5171\u4eab<\/strong>\u7edd\u5927\u90e8\u5206\u7684\u7279\u5f81\u63d0\u53d6\u5c42\u548c\u8ba1\u7b97\u3002<\/td><td>\u9ad8\u5ea6\u5171\u4eab\uff0c\u4ec5\u5728\u6700\u540e\u9884\u6d4b\u5c42\u5206\u79bb<\/td><td>\u7ed3\u6784\u7d27\u51d1\uff0c\u53c2\u6570\u91cf\u8f83\u5c11\u3002<\/td><td>\u4efb\u52a1\u51b2\u7a81\u4e25\u91cd\uff0c\u5206\u7c7b\u4e0e\u56de\u5f52\u7279\u5f81\u76f8\u4e92\u5e72\u6270\uff0c\u96be\u4ee5\u4f18\u5316\uff0c\u6027\u80fd\u4e0a\u9650\u8f83\u4f4e\u3002<\/td><\/tr><tr><td><strong>\u53c2\u6570\u89e3\u8026\u5934 (Parametrically Decoupled)<\/strong><\/td><td>RetinaNet (\u5e38\u89c1\u5b9e\u73b0)<\/td><td>\u5206\u7c7b\u548c\u56de\u5f52\u4f7f\u7528<strong>\u4e24\u4e2a\u72ec\u7acb<\/strong>\u7684\u5377\u79ef\u5e8f\u5217\uff0c\u4f46<strong>\u8f93\u5165\u7684\u7279\u5f81\u5b8c\u5168\u76f8\u540c<\/strong>\u3002<\/td><td>\u65e9\u671f\u5c42\u5171\u4eab\u57fa\u7840\u7279\u5f81\uff0c\u540e\u671f\u4f7f\u7528<strong>\u72ec\u7acb\u53c2\u6570<\/strong>\u7684\u5206\u652f<\/td><td>\u7ed3\u6784\u7b80\u5355\u76f4\u89c2\uff0c\u4e00\u5b9a\u7a0b\u5ea6\u7f13\u89e3\u4e86\u4efb\u52a1\u51b2\u7a81\uff0c\u76f8\u6bd4\u8026\u5408\u5934\u6027\u80fd\u6709\u63d0\u5347\u3002<\/td><td>\u8f93\u5165\u7279\u5f81\u672a\u89e3\u8026\uff0c\u4e24\u4e2a\u4efb\u52a1\u4ecd\u9700\u4ece\u540c\u4e00\u7279\u5f81\u56fe\u4e2d\u5b66\u4e60\u4e0d\u540c\u4fe1\u606f\uff0c\u5b58\u5728\u6839\u672c\u6027\u9650\u5236\u3002<\/td><\/tr><tr><td><strong>\u4e0a\u4e0b\u6587\u89e3\u8026\u5934 (Contextually Decoupled)<\/strong><\/td><td>TSD, TSCODE, YOLO-PRO (ISADH)<\/td><td>\u4e0d\u4ec5\u4f7f\u7528\u72ec\u7acb\u53c2\u6570\uff0c\u8fd8\u901a\u8fc7\u8bbe\u8ba1<strong>\u4e3a\u4e24\u4e2a\u4efb\u52a1\u63d0\u4f9b\u4e0d\u540c\u7684\u8f93\u5165\u7279\u5f81\u4e0a\u4e0b\u6587<\/strong>\u3002<\/td><td><strong>\u8f93\u5165\u7279\u5f81\u548c\u53c2\u6570\u5747\u89e3\u8026<\/strong><\/td><td><strong>\u6027\u80fd\u66f4\u4f18<\/strong>\u3002\u5206\u7c7b\u5206\u652f\u878d\u5165\u6df1\u5c42<strong>\u8bed\u4e49\u7279\u5f81<\/strong>\uff0c\u56de\u5f52\u5206\u652f\u5f15\u5165\u6d45\u5c42<strong>\u7ec6\u8282\u7279\u5f81<\/strong>\uff0c\u4ece\u6839\u6e90\u4e0a\u7f13\u89e3\u7a7a\u95f4\u4e0d\u5bf9\u9f50\u95ee\u9898\u3002<\/td><td>\u7ed3\u6784\u76f8\u5bf9\u590d\u6742\uff0c\u53ef\u80fd\u5f15\u5165\u989d\u5916\u8ba1\u7b97\u91cf\uff08\u4f46\u8bb8\u591a\u8bbe\u8ba1\u4e5f\u81f4\u529b\u4e8e\u8f7b\u91cf\u5316\uff09\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&nbsp;<strong>\u4e3a\u4f55\u9700\u8981\u89e3\u8026\uff1f<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p>\u76ee\u6807\u68c0\u6d4b\u4e2d\u7684\u5206\u7c7b\u548c\u5b9a\u4f4d\u4efb\u52a1\u672c\u8d28\u4e0a\u662f\u4e0d\u540c\u7684\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5206\u7c7b\u4efb\u52a1<\/strong>\uff1a\u5173\u5fc3\u7684\u662f\u201c\u662f\u4ec0\u4e48\u201d\uff0c\u9700\u8981<strong>\u4e30\u5bcc\u7684\u8bed\u4e49\u4fe1\u606f\u548c\u4e0a\u4e0b\u6587<\/strong>\u6765\u5224\u65ad\u7269\u4f53\u7684\u7c7b\u522b\u3002\u5b83\u66f4\u5173\u6ce8\u76ee\u6807<strong>\u5185\u90e8<\/strong>\u7684\u663e\u8457\u7279\u5f81\u3002<\/li>\n\n\n\n<li><strong>\u5b9a\u4f4d\u4efb\u52a1<\/strong>\uff1a\u5173\u5fc3\u7684\u662f\u201c\u5728\u54ea\u91cc\u201d\uff0c\u9700\u8981<strong>\u7cbe\u786e\u7684\u8fb9\u754c\u4fe1\u606f<\/strong>\uff08\u5982\u8fb9\u7f18\u3001\u89d2\u843d\uff09\u6765\u56de\u5f52\u51fa\u51c6\u786e\u7684\u8fb9\u754c\u6846\u3002\u5b83\u66f4\u5173\u6ce8\u76ee\u6807<strong>\u8fb9\u754c<\/strong>\u7684\u7279\u5f81\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5728\u65e9\u671f\u7684<strong>\u8026\u5408\u5934\uff08Coupled Head\uff09<\/strong>&nbsp;\u8bbe\u8ba1\u4e2d\uff0c\u8fd9\u4e24\u4e2a\u4efb\u52a1\u5171\u4eab\u540c\u4e00\u4e2a\u7279\u5f81\u63d0\u53d6 backbone\uff0c\u751a\u81f3\u5728 head \u90e8\u5206\u4e5f\u5171\u4eab\u5927\u90e8\u5206\u8ba1\u7b97\u3002\u8fd9\u4f1a\u5bfc\u81f4\u4e00\u79cd\u201c<strong>\u7a7a\u95f4\u4e0d\u5bf9\u9f50\uff08Spatial Misalignment\uff09<\/strong>\u201d\uff1a\u5373\u5bf9\u5206\u7c7b\u6700\u6709\u5229\u7684\u7279\u5f81\uff08\u7269\u4f53\u5185\u90e8\uff09\u548c\u5bf9\u5b9a\u4f4d\u6700\u6709\u5229\u7684\u7279\u5f81\uff08\u7269\u4f53\u8fb9\u7f18\uff09\u5728\u540c\u4e00\u4f4d\u7f6e\u53ef\u80fd\u662f\u77db\u76fe\u7684\uff0c\u4ece\u800c\u5728\u8bad\u7ec3\u65f6\u4ea7\u751f<strong>\u68af\u5ea6\u51b2\u7a81<\/strong>\uff0c\u9650\u5236\u6a21\u578b\u6027\u80fd\u7684\u4e0a\u9650\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"762\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061447357-1024x762.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6791 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061447357-1024x762.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061447357-300x223.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061447357-768x572.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061447357.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"762\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061447357-1024x762.jpg\" alt=\"\" class=\"wp-image-6791\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061447357-1024x762.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061447357-300x223.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061447357-768x572.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061447357.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>\ud83d\udd27&nbsp;<strong>\u89e3\u8026\u5934\u5982\u4f55\u5de5\u4f5c<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p>\u201c\u4e24\u6761\u5e76\u884c\u7684\u5206\u652f\u201d\u662f\u89e3\u8026\u5934\u6700\u7ecf\u5178\u548c\u666e\u904d\u7684\u5f62\u5f0f\uff0c\u5176\u5de5\u4f5c\u6d41\u7a0b\u901a\u5e38\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5171\u4eab\u57fa\u7840\u7279\u5f81\u63d0\u53d6<\/strong>\uff1a\u4ece Neck\uff08\u5982 FPN\uff09\u8f93\u51fa\u7684\u591a\u5c3a\u5ea6\u7279\u5f81\u56fe\u9996\u5148\u4f1a\u901a\u8fc7\u4e00\u4e2a\u6216\u591a\u4e2a<strong>\u5171\u4eab\u7684\u5377\u79ef\u5c42<\/strong>\u8fdb\u884c\u521d\u6b65\u5904\u7406\u3002\u8fd9\u4e00\u6b65\u65e8\u5728\u63d0\u53d6\u4e00\u4e2a\u901a\u7528\u7684\u57fa\u7840\u7279\u5f81\u3002<\/li>\n\n\n\n<li><strong>\u4efb\u52a1\u7279\u5b9a\u5206\u652f\u5206\u79bb<\/strong>\uff1a\u968f\u540e\uff0c\u7279\u5f81\u88ab\u9001\u5165\u4e24\u4e2a<strong>\u5b8c\u5168\u72ec\u7acb<\/strong>\u7684\u5e76\u884c\u5206\u652f\u4e2d\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u5206\u7c7b\u5206\u652f\uff08Cls Branch\uff09<\/strong>\uff1a\u7531\u4e00\u7cfb\u5217\u5377\u79ef\u5c42\u7ec4\u6210\uff0c\u4e13\u95e8\u8d1f\u8d23\u4ece\u7279\u5f81\u4e2d\u5b66\u4e60\u4e0e<strong>\u7269\u4f53\u7c7b\u522b<\/strong>\u76f8\u5173\u7684\u4fe1\u606f\u3002\u5176\u6700\u7ec8\u8f93\u51fa\u662f\u4e00\u4e2a\u7ef4\u5ea6\u4e3a\u00a0<code>(B, H, W, num_anchors * num_classes)<\/code>\u00a0\u7684\u7279\u5f81\u56fe\uff0c\u901a\u5e38\u518d\u63a5\u4e0a Sigmoid \u6fc0\u6d3b\u51fd\u6570\u6765\u8f93\u51fa\u7c7b\u522b\u7f6e\u4fe1\u5ea6\u3002<\/li>\n\n\n\n<li><strong>\u56de\u5f52\u5206\u652f\uff08Reg Branch \/ BBox Branch\uff09<\/strong>\uff1a\u540c\u6837\u7531\u4e00\u7cfb\u5217\u5377\u79ef\u5c42\u7ec4\u6210\uff08\u6709\u65f6\u7ed3\u6784\u4f1a\u4e0e\u5206\u7c7b\u5206\u652f\u7565\u6709\u4e0d\u540c\uff09\uff0c\u4e13\u95e8\u8d1f\u8d23\u4ece\u7279\u5f81\u4e2d\u5b66\u4e60<strong>\u7269\u4f53\u8fb9\u754c\u6846\u7684\u504f\u79fb\u91cf<\/strong>\u3002\u5176\u6700\u7ec8\u8f93\u51fa\u662f\u4e00\u4e2a\u7ef4\u5ea6\u4e3a\u00a0<code>(B, H, W, num_anchors * 4)<\/code>\u00a0\u7684\u7279\u5f81\u56fe\uff084 \u5bf9\u5e94\u4e2d\u5fc3\u70b9\u5750\u6807\u548c\u5bbd\u9ad8\u7684\u504f\u79fb\u91cf\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\ude80&nbsp;<strong>\u4f18\u52bf\u4e0e\u5f71\u54cd<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p>\u91c7\u7528\u89e3\u8026\u5934\u5e26\u6765\u4e86\u591a\u65b9\u9762\u7684\u91cd\u8981\u63d0\u5347\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7f13\u89e3\u4efb\u52a1\u51b2\u7a81<\/strong>\uff1a\u4e24\u4e2a\u5206\u652f\u5404\u53f8\u5176\u804c\uff0c\u5927\u5e45\u51cf\u5c11\u4e86\u5206\u7c7b\u548c\u56de\u5f52\u4efb\u52a1\u4e4b\u95f4\u7684\u68af\u5ea6\u5e72\u6270\u3002<\/li>\n\n\n\n<li><strong>\u63d0\u5347\u68c0\u6d4b\u7cbe\u5ea6\uff08mAP\uff09<\/strong>\uff1a\u8fd9\u662f\u6700\u76f4\u63a5\u7684\u6536\u76ca\uff0c\u51e0\u4e4e\u6240\u6709\u4e3b\u6d41\u68c0\u6d4b\u5668\u5728\u91c7\u7528\u89e3\u8026\u5934\u540e\u90fd\u89c2\u5bdf\u5230\u4e86\u663e\u8457\u7684 mAP \u63d0\u5347\u3002<\/li>\n\n\n\n<li><strong>\u52a0\u901f\u8bad\u7ec3\u6536\u655b<\/strong>\uff1a\u7531\u4e8e\u4efb\u52a1\u51b2\u7a81\u51cf\u5c11\uff0c\u4f18\u5316\u8fc7\u7a0b\u66f4\u52a0\u5e73\u6ed1\uff0c\u6a21\u578b\u6536\u655b\u901f\u5ea6\u66f4\u5feb\u3002<\/li>\n\n\n\n<li><strong>\u6210\u4e3a\u73b0\u4ee3\u68c0\u6d4b\u5668\u6807\u914d<\/strong>\uff1a\u6b63\u5982\u4f60\u6240\u89c1\uff0c\u4ece YOLOX \u5f00\u59cb\uff0c\u5230\u540e\u6765\u7684 YOLOv6, v7, v8, PP-YOLOE \u7b49\uff0c\u89e3\u8026\u5934\u5df2\u7ecf\u6210\u4e3a\u9ad8\u6027\u80fd\u76ee\u6807\u68c0\u6d4b\u7b97\u6cd5\u7684\u6807\u51c6\u914d\u7f6e\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\udca1&nbsp;<strong>\u8fdb\u9636\u8bbe\u8ba1<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p>\u57fa\u672c\u7684\u89e3\u8026\u5934\uff08\u4ec5\u53c2\u6570\u72ec\u7acb\uff09\u4e4b\u540e\uff0c\u7814\u7a76\u8005\u4eec\u8fd8\u63d0\u51fa\u4e86\u66f4\u7cbe\u7ec6\u7684\u8bbe\u8ba1\uff0c\u4f8b\u5982\u56fe\u4e2d\u53ef\u80fd\u5c55\u73b0\u7684&nbsp;<strong>TSCODE<\/strong>\u6216&nbsp;<strong>YOLO-PRO<\/strong>&nbsp;\u4e2d\u7684&nbsp;<strong>ISADH<\/strong>&nbsp;\u7b49\u65b9\u6848\u3002\u8fd9\u4e9b\u8bbe\u8ba1\u610f\u8bc6\u5230\uff0c<strong>\u4ec5\u8ba9\u53c2\u6570\u72ec\u7acb\u662f\u4e0d\u591f\u7684\uff0c\u4e24\u4e2a\u5206\u652f\u7684\u8f93\u5165\u7279\u5f81\u672c\u8eab\u4e5f\u5e94\u5f53\u6709\u6240\u4fa7\u91cd<\/strong>\u3002\u56e0\u6b64\uff0c\u5b83\u4eec\u901a\u8fc7\u989d\u5916\u7684\u7f51\u7edc\u7ed3\u6784\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e3a<strong>\u5206\u7c7b\u5206\u652f<\/strong>\u6ce8\u5165\u66f4\u591a\u6765\u81ea<strong>\u6df1\u5c42<\/strong>\u7684\u3001\u5bcc\u542b<strong>\u8bed\u4e49\u4e0a\u4e0b\u6587<\/strong>\u7684\u7279\u5f81\u3002<\/li>\n\n\n\n<li>\u4e3a<strong>\u56de\u5f52\u5206\u652f<\/strong>\u6ce8\u5165\u66f4\u591a\u6765\u81ea<strong>\u6d45\u5c42<\/strong>\u7684\u3001\u5bcc\u542b<strong>\u7ec6\u8282\u548c\u8fb9\u7f18<\/strong>\u4fe1\u606f\u7684\u9ad8\u5206\u8fa8\u7387\u7279\u5f81\u3002 \u8fd9\u4e9b\u8bbe\u8ba1\u8fdb\u4e00\u6b65\u63d0\u5347\u4e86\u6027\u80fd\uff0c\u4ee3\u8868\u4e86\u89e3\u8026\u5934\u53d1\u5c55\u7684\u65b0\u65b9\u5411\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">1.4 Prediction layer\u9884\u6d4b\u5c42<\/h2>\n\n\n\n<p>\u7531\u4e8e\u6211\u4eec\u91c7\u7528\u4e86\u89e3\u8026\u68c0\u6d4b\u5934\u7684\u7ed3\u6784\uff0c\u56e0\u6b64\u68c0\u6d4b\u5934\u6700\u540e\u90e8\u5206\u7684\u201c\u9884\u6d4b\u5c42\u201d\uff08Prediction layer\uff09\u4e5f\u8981\u505a\u76f8\u5e94\u7684\u4fee\u6539\u3002<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u6211\u4eec\u53ea\u8981\u6c42YOLOv1\u5728\u6bcf\u4e00\u4e2a\u7f51\u683c\u53ea\u9700\u8981\u9884\u6d4b\u4e00\u4e2abbox\uff0c\u800c\u975e\u4e24\u4e2a\u751a\u81f3\u66f4\u591a\u7684bbox\uff0c\u56e0\u4e3a\u5728\u6b64\u524d\u7684YOLOv1\u8bba\u6587\u8be6\u89e3\u4e2d\uff0c\u6211\u4eec\u63d0\u5230\u8fc7\uff0c\u5c3d\u7ba1\u539f\u7248\u7684YOLOv1\u5728\u6bcf\u4e2a\u7f51\u683c\u9884\u6d4b\u4e24\u4e2abbox\uff0c\u4f46\u5728\u63a8\u7406\u9636\u6bb5\uff0c\u6bcf\u4e2a\u7f51\u683c\u6700\u7ec8\u53ea\u8f93\u51fa\u4e00\u4e2abbox\uff0c\u4ece\u7ed3\u679c\u4e0a\u6765\u770b\uff0c\u8fd9\u548c\u6bcf\u4e2a\u7f51\u683c\u53ea\u9884\u6d4b\u4e00\u4e2abbox\u662f\u4e00\u6837\u7684\u3002\u5b8c\u6574\u7684\u201c\u68c0\u6d4b\u5934+\u9884\u6d4b\u5c42\u201d\u7684\u7ed3\u6784\u5982\u4e0b\u65b9\u7684\u56fe5\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"645\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061455430-1024x645.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" alt=\"\" class=\"wp-image-6792 lazyload\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061455430-1024x645.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061455430-300x189.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061455430-768x484.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061455430.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"645\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061455430-1024x645.jpg\" alt=\"\" class=\"wp-image-6792\" srcset=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061455430-1024x645.jpg 1024w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061455430-300x189.jpg 300w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061455430-768x484.jpg 768w, https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2025\/09\/20250929061455430.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>1\uff09objectness\u9884\u6d4b\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u524d\u6587\u6211\u4eec\u5df2\u7ecf\u8bb2\u5230\uff0c\u8fd9\u90e8\u5206\u9884\u6d4b\u7684\u7269\u7406\u542b\u4e49\u4e3b\u8981\u662f\u786e\u5b9a\u8be5bbox\u662f\u5426\u9884\u6d4b\u4e86\u4e00\u4e2a\u7269\u4f53\uff0c\u5373\u201c\u6709\u65e0\u7269\u4f53\u201d\u7684\u9884\u6d4b\uff0c\u867d\u7136\u6211\u4eec\u5728\u8bad\u7ec3\u9636\u6bb5\u91c7\u7528\u4e86\u9884\u6d4b\u7684IoU\u4f5c\u4e3a\u5b66\u4e60\u6807\u7b7e\uff0c\u5e0c\u671bobjectness\u5373bbox\u7684\u7f6e\u4fe1\u5ea6\u4e5f\u80fd\u8868\u5f81bbox\u7684\u68c0\u6d4b\u8d28\u91cf\uff0c\u4f46\u4e8b\u5b9e\u4e0a\u8fd9\u5e76\u4e0d\u4e25\u8c28\uff0c\u56e0\u4e3a\u6211\u4eec\u5e76\u6ca1\u6709\u4ece\u6570\u5b66\u7684\u89d2\u5ea6\u4e0a\u53bb\u505a\u8fd9\u6837\u7684\u7ea6\u675f\uff0c\u66f4\u591a\u662f\u6211\u4eec\u7684\u201c\u4e00\u53a2\u60c5\u613f\u201d\u3002<\/p>\n\n\n\n<p>\u4e8b\u5b9e\u4e0a\uff0c\u6709\u7ecf\u9a8c\u7684\u8bfb\u8005\u4e0d\u96be\u53d1\u73b0\uff0c\u5373\u4fbf\u4e00\u4e2abbox\u5b9a\u4f4d\u5f97\u5f88\u51c6\uff0c\u5176\u7f6e\u4fe1\u5ea6\u4ecd\u53ef\u80fd\u4f1a\u5f88\u4f4e\uff08\u7528\u73b0\u5728\u7684\u8bed\u8a00\u6765\u8bf4\uff0c\u8fd9\u79cd\u65b9\u6cd5\u672c\u8d28\u662fIoU-aware\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u5e73\u8861\u7c7b\u522b\u548c\u5b9a\u4f4d\u4e24\u79cd\u8bed\u4e49\u7684\u5b66\u4e60\u4e4b\u95f4\u7684\u77db\u76fe\uff09\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0c\u6211\u4eec\u4e0d\u59a8\u91c7\u7528\u66f4\u52a0\u7b80\u5355\u7684\u5b66\u4e60\u7b56\u7565\uff0c\u5c06\u5176\u5b66\u4e60\u6807\u7b7e\u8bbe\u7f6e\u4e3a0\u548c1\u7684\u4e8c\u5206\u7c7b\u3002<\/p>\n\n\n\n<p>\u4e0d\u96be\u7406\u89e3\uff0cobjectness\u9884\u6d4b\u3001\u5373\u201c\u6709\u65e0\u7269\u4f53\u201d\u7684\u9884\u6d4b\u662f\u66f4\u591a\u5730\u662f\u5c5e\u4e8e\u8bed\u4e49\u5c42\u9762\u7684\u9884\u6d4b\uff0c\u56e0\u6b64\uff0c\u6211\u4eec\u5728Decoupled head\u7684\u7c7b\u522b\u5206\u652f\u7684\u8f93\u51fa\u540e\u9762\u63a5\u4e00\u5c421x1\u5377\u79ef\u53bb\u505aobjectness\u7684\u9884\u6d4b\uff0c\u5e76\u5728\u6700\u540e\u4f7f\u7528Sigmoid\u51fd\u6570\u6765\u8f93\u51faobjectness\u9884\u6d4b\u503c\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>2\uff09classification\u9884\u6d4b\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u6211\u4eec\u5728Decoupled head\u7684\u7c7b\u522b\u5206\u652f\u7684\u8f93\u51fa\u540e\u9762\u63a5\u4e00\u5c421x1\u5377\u79ef\u53bb\u505aclassificaton\u7684\u9884\u6d4b\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0cclassificaton\u9884\u6d4b\u548cobjectness\u9884\u6d4b\u90fd\u91c7\u7528Decoupled\u7684\u540c\u4e00\u5206\u652f\u3002\u9075\u5faa\u5f53\u4e0bYOLO\u7cfb\u5217\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u6211\u4eec\u540c\u6837\u91c7\u7528Sigmoid\u51fd\u6570\u6765\u8f93\u51faclassification\u9884\u6d4b\u503c\uff0c\u5373\u6bcf\u4e2a\u7c7b\u522b\u7684\u7f6e\u4fe1\u5ea6\u90fd\u662f0\uff5e1\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>3\uff09bbox regression\u9884\u6d4b\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u5f88\u81ea\u7136\u7684\uff0c<strong>\u53e6\u4e00\u5206\u652f\u7684\u4f4d\u7f6e\u7279\u5f81\u5c31\u88ab\u7528\u4e8e\u9884\u6d4b\u8fb9\u754c\u6846\u7684\u504f\u79fb\u91cf<\/strong>\uff0c\u5373\u6211\u4eec\u4f7f\u7528\u53e6\u4e00\u5c421x1\u5377\u79ef\u53bb\u5904\u7406\u68c0\u6d4b\u5934\u7684\u4f4d\u7f6e\u7279\u5f81\uff0c\u5f97\u5230\u6bcf\u4e2a\u7f51\u683c\u7684\u8fb9\u754c\u6846\u7684\u504f\u79fb\u91cf\u9884\u6d4b\u3002<\/p>\n\n\n\n<p>\u5728\u539f\u7248\u7684YOLOv1\u4e2d\uff0cbbox\u9884\u6d4b\u4e3b\u8981\u5305\u62ec\u76ee\u6807\u4e2d\u5fc3\u70b9\u7684\u504f\u79fb\u91cf Cx, Cy \u548c\u5f52\u4e00\u5316\u7684\u8fb9\u754c\u6846\u7684\u5bbd\u9ad8 w\uff0ch \uff0c\u4f46\u662f\u4e0d\u8bba\u662f\u54ea\u4e2a\u91cf\uff0c\u539f\u7248\u7684YOLOv1\u5747\u4f7f\u7528\u7ebf\u6027\u51fd\u6570\u6765\u8f93\u51fa\uff0c\u672a\u52a0\u4efb\u4f55\u7ea6\u675f\u9650\u5236\uff0c\u5f88\u660e\u663e\u4f1a\u6709\u4ee5\u4e0b\u4e24\u70b9\u95ee\u9898\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>a) \u7531\u4e8e\u504f\u79fb\u91cf Cx, Cy \u662f\u4ecb\u4e8e01\u8303\u56f4\u5185\u7684\u6570\uff0c\u56e0\u6b64\uff0c\u5176\u672c\u8eab\u5c31\u662f\u6709\u4e0a\u4e0b\u754c\u7684\uff0c\u800c\u7ebf\u6027\u8f93\u51fa\u5e76\u6ca1\u6709\u4e0a\u4e0b\u754c\uff0c\u8fd9\u5c31\u5bb9\u6613\u5bfc\u81f4\u5728\u5b66\u4e60\u7684\u521d\u671f\uff0c\u7f51\u7edc\u53ef\u80fd\u9884\u6d4b\u7684\u503c\u975e\u5e38\u5927\uff0c\u5bfc\u81f4bbox\u5206\u652f\u5b66\u4e60\u4e0d\u7a33\u5b9a\u3002<\/li>\n\n\n\n<li>b\uff09\u8fb9\u754c\u6846\u7684\u5bbd\u9ad8\u663e\u7136\u662f\u4e2a\u975e\u8d1f\u6570\uff0c\u800c\u7ebf\u6027\u8f93\u51fa\u4e0d\u80fd\u4fdd\u8bc1\u8fd9\u4e00\u70b9\uff0c\u8fd9\u4e5f\u53ef\u80fd\u9020\u6210\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\u7684\u4e0d\u7a33\u5b9a\uff0c\u4e00\u4e9b\u8f93\u51fa\u4e00\u4e9b\u4e0d\u5408\u7406\u7684\u6570\u503c\uff08\u6bd4\u5982\u8d1f\u6570\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5bf9\u4e8e\u95ee\u9898a\uff09\uff0c\u6211\u4eec\u4f7f\u7528sigmoid\u6765\u8f93\u51fa\uff0c\u5177\u4f53\u6765\u8bf4\uff0c\u5047\u8bbe\u6a21\u578b\u7684\u8f93\u51fa\u4e3a tx,ty \uff0c\u6211\u4eec\u4f7f\u7528sigmoid\u51fd\u6570\u5c06\u5176\u6620\u5c04\u52300\uff5e1\u7684\u8303\u56f4\u5185\uff0c\u4fdd\u8bc1\u7f51\u7edc\u7684\u8f93\u51fa\u503c\u662f\u5408\u7406\u7684\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5728\u4f7f\u7528\u4e86sigmoid\u51fd\u6570\u540e\uff0c\u6211\u4eec\u5c31\u786e\u4fdd\u7f51\u7edc\u6700\u7ec8\u9884\u6d4b\u7684\u4e2d\u5fc3\u70b9\u504f\u79fb\u91cf\u662f\u201c\u5408\u7406\u201d\u7684\u6570\u503c\uff0c\u4f7f\u5f97\u8bad\u7ec3\u66f4\u52a0\u7a33\u5b9a\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u5bf9\u4e8e\u95ee\u9898b\uff09\uff0c\u4e00\u79cd\u89e3\u51b3\u529e\u6cd5\u662f\u7ea6\u675f\u8f93\u51fa\u4e3a\u975e\u8d1f\uff0c\u5982\u7528ReLU\u51fd\u6570\uff0c\u4f46\u8fd9\u79cd\u529e\u6cd5\u5c31\u4f1a\u9690\u542b\u4e00\u4e2a\u7ea6\u675f\u6761\u4ef6\uff0c\u8fd9\u5e76\u4e0d\u5229\u4e8e\u4f18\u5316\uff0c\u800c\u4e14ReLU\u76840\u533a\u95f4\u65e0\u6cd5\u56de\u4f20\u68af\u5ea6\uff0c\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u6709\u53ef\u80fd\u9020\u6210\u201c\u6b7b\u5143\u201d\u7684\u95ee\u9898\u3002https:\/\/wxa.wxs.qq.com\/tmpl\/oc\/base_tmpl.html<\/p>\n\n\n\n<p>\u53e6\u5916\uff0c\u6211\u4eec\u53ef\u4ee5\u91c7\u7528sigmoid\u51fd\u6570\u6765\u505a\u8fd9\u4e00\u7ea6\u675f\uff0c\u8fd9\u79cd\u65b9\u6cd5\u8981\u4f18\u4e8eReLU\u51fd\u6570\uff0c\u4f46\u662f\uff0csigmoid\u51fd\u6570\u5e73\u7b49\u5730\u5904\u7406\u4efb\u610f\u5c3a\u5ea6\u7684\u5750\u6807\uff0c\u6ca1\u6709\u8003\u8651\u5230\u4e0d\u540c\u5c3a\u5ea6\u7684\u76ee\u6807\u7684\u5750\u6807\u56de\u5f52\u96be\u5ea6\u3002<\/p>\n\n\n\n<p>\u5bf9\u6b64\uff0c\u6211\u4eec\u63a8\u8350\u91c7\u7528\u201clog-exp\u65b9\u6cd5\u201d\u6765\u5904\u7406\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u6211\u4eec\u7684YOLOv1\u6240\u8981\u9884\u6d4b\u7684\u4e0d\u662f\u5f52\u4e00\u5316\u7684\u8fb9\u754c\u6846\u5bbd\u9ad8\uff0c\u800c\u662f\u7ecf\u8fc7log\u51fd\u6570\u538b\u7f29\u540e\u7684\u5bbd\u9ad8\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>tw=log(y) th=log(h)<\/p>\n<\/blockquote>\n\n\n\n<p>\u5176\u4e2d\uff0c w\uff0ch \u662f\u76ee\u6807\u8fb9\u754c\u6846\u7684\uff08\u672a\u5f52\u4e00\u5316\uff09\u5bbd\u9ad8\u3002\u7531\u4e8etw\uff0cth \u7684\u503c\u57df\u662f\u5b9e\u6570\u5168\u57df\uff0c\u6ca1\u6709\u4e0a\u4e0b\u754c\uff0c\u56e0\u6b64\u5c31\u65e0\u9700\u62c5\u5fc3\u7ea6\u675f\u6761\u4ef6\u5bf9\u4f18\u5316\u5e26\u6765\u7684\u5f71\u54cd\uff0c\u53e6\u5916\uff0c\u7531\u4e8elog\u51fd\u6570\u7684\u6307\u6570\u7ea7\u7684\u538b\u7f29\u7279\u6027\uff0c\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u53ef\u4ee5\u62c9\u8fd1\u5927\u76ee\u6807\u548c\u5c0f\u76ee\u6807\u4e4b\u95f4\u7684\u5c3a\u5bf8\u91cf\u7ea7\uff0c\u56e0\u6b64\uff0c\u5bf9\u4e8e\u5e73\u8861\u4e0d\u540c\u5c3a\u5ea6\u7684\u76ee\u6807\u7684\u68c0\u6d4b\u95ee\u9898\u8fd8\u80fd\u8d77\u5230\u4e00\u5b9a\u7684\u7f13\u89e3\u4f5c\u7528\u3002<\/p>\n\n\n\n<p>\u5b9e\u9645\u4e0a\uff0c\u4e3a\u4e86\u66f4\u597d\u5730\u5b66\u4e60\u8fd9\u4e00\u6807\u7b7e\uff0c\u6211\u4eec\u4f1a\u5c06\u76ee\u6807\u6846\u7684\u5750\u6807\u5148\u6620\u5c04\u5230\u7f51\u683c\u7684\u5c3a\u5ea6\u4e0a\uff1a ws=w\/stride\uff0chs=h\/stride \uff0c\u7136\u540e\u518d\u505alog\u5904\u7406\u3002\u56e0\u6b64\uff0c\u5728\u8bad\u7ec3\u9636\u6bb5\uff0c\u6211\u4eec\u8ba9YOLOv1\u53bb\u5b66\u4e60log\u5c3a\u5ea6\u4e0a\u7684\u8fb9\u754c\u6846\u5bbd\u9ad8\uff0c\u7136\u540e\u5728\u63a8\u7406\u9636\u6bb5\uff0c\u4f7f\u7528exp\u51fd\u6570\u5373\u53ef\u5c06\u9884\u6d4b\u6062\u590d\u5230\u6b63\u5e38\u7684\u5c3a\u5ea6\u4e0a\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>w=exp(tw) * stride h=exp(th)*stride<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728\u90e8\u5206\u5de5\u4f5c\u4e2d\uff0clog-exp\u65b9\u6cd5\u4e5f\u88ab\u79f0\u4e3a\u201c\u8fb9\u754c\u6846\u5750\u6807\u91cd\u53c2\u6570\u5316\u201d\uff0c\u662f\u4e00\u4e2a\u5f88\u6734\u7d20\u4f46\u5f88\u6709\u6548\u7684\u5750\u6807\u56de\u5f52\u65b9\u6cd5\u3002\u4e0d\u8fc7\uff0c\u8fd9\u91cc\u4e5f\u5b58\u5728\u4e00\u4e2a\u9690\u60a3\uff0c\u5c31\u662fexp\u51fd\u6570\u7684\u201c\u6307\u6570\u7206\u70b8\u201d\u7279\u6027\uff0c\u53ef\u80fd\u4f1a\u5728\u8bad\u7ec3\u9636\u6bb5\u6709\u68af\u5ea6\u7206\u70b8\u3001Loss\u51fa\u73b0NAN\u7684\u9690\u60a3\uff0c\u5c31\u7b14\u8005\u4e2a\u4eba\u7ecf\u9a8c\u800c\u8a00\uff0c\u8fd9\u79cd\u95ee\u9898\u51fa\u73b0\u7684\u9891\u7387\u5f88\u4f4e\uff0c\u6682\u65f6\u53ef\u5ffd\u7565\u4e0d\u8ba1\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>\u5570\u55e6\u7684\u767d\u8bdd\u4e00\u4e0b\uff01<\/p>\n<\/blockquote>\n\n\n\n<p>\u7b80\u5355\u6765\u8bf4\uff0c\u8fd9\u6bb5\u8bdd\u5728\u8ba8\u8bba\u5982\u4f55\u8bbe\u8ba1\u4e00\u4e2a\u68c0\u6d4b\u5934\uff08Decoupled Head\uff09\u6765\u66f4\u597d\u5730\u5b8c\u6210\u76ee\u6807\u68c0\u6d4b\u7684\u4e09\u9879\u4efb\u52a1\uff1a<strong>\u5224\u65ad\u201c\u6709\u6ca1\u6709\u7269\u4f53\u201d\uff08Objectness\uff09<\/strong>\u3001<strong>\u5224\u65ad\u201c\u662f\u4ec0\u4e48\u7269\u4f53\u201d\uff08Classification\uff09<\/strong>&nbsp;\u548c&nbsp;<strong>\u786e\u5b9a\u201c\u7269\u4f53\u5728\u54ea\u201d\uff08BBox Regression\uff09<\/strong>\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u8fd9\u4e2a\u8868\u683c\u603b\u7ed3\u4e86\u63d0\u5230\u7684Decoupled Head\u7684\u6838\u5fc3\u5206\u5de5\u548c\u5173\u952e\u6539\u8fdb\uff0c\u6211\u4eec\u5148\u6709\u4e00\u4e2a\u6574\u4f53\u7684\u4fef\u77b0\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9884\u6d4b\u4efb\u52a1<\/th><th>\u8d1f\u8d23\u5206\u652f<\/th><th>\u6838\u5fc3\u529f\u80fd<\/th><th>\u539f\u6587\u4e2d\u63d0\u5230\u7684\u5173\u952e\u8bbe\u8ba1\/\u6539\u8fdb<\/th><th>\u4e3b\u8981\u76ee\u7684<\/th><\/tr><\/thead><tbody><tr><td><strong>Objectness (\u6709\u65e0\u7269\u4f53)<\/strong><\/td><td><strong>\u7c7b\u522b\u5206\u652f<\/strong><\/td><td>\u9884\u6d4b\u6bcf\u4e2a\u4f4d\u7f6e\u662f\u5426\u5b58\u5728\u7269\u4f53\uff0c\u8f93\u51fa\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u7f6e\u4fe1\u5ea6\u3002<\/td><td>\u5c06\u8bad\u7ec3\u6807\u7b7e\u7b80\u5316\u4e3a<strong>0\uff08\u65e0\uff09\u62161\uff08\u6709\uff09<\/strong>\uff0c\u4f7f\u7528<strong>Sigmoid<\/strong>\u51fd\u6570\u8f93\u51fa\u3002<\/td><td>\u63d0\u4f9b\u66f4\u7a33\u5b9a\u3001\u66f4\u7eaf\u7cb9\u7684\u201c\u6709\u65e0\u201d\u4fe1\u53f7\uff0c\u51cf\u5c11\u4e0e\u5b9a\u4f4d\u8d28\u91cf\u7684\u8026\u5408\u3002<\/td><\/tr><tr><td><strong>Classification (\u7c7b\u522b)<\/strong><\/td><td><strong>\u7c7b\u522b\u5206\u652f<\/strong><\/td><td>\u9884\u6d4b\u5b58\u5728\u7269\u4f53\u7684\u60c5\u51b5\u4e0b\uff0c\u8be5\u7269\u4f53\u5c5e\u4e8e\u5404\u4e2a\u7c7b\u522b\u7684\u6982\u7387\u3002<\/td><td>\u4f7f\u7528<strong>Sigmoid<\/strong>\u51fd\u6570\u72ec\u7acb\u9884\u6d4b\u6bcf\u4e2a\u7c7b\u522b\u7684\u6982\u7387\uff0c\u800c\u975eSoftmax\u3002<\/td><td>\u66f4\u597d\u5730\u5904\u7406\u591a\u6807\u7b7e\u95ee\u9898\uff08\u4e00\u4e2a\u76ee\u6807\u53ef\u80fd\u540c\u65f6\u5c5e\u4e8e\u591a\u4e2a\u7c7b\u522b\uff09\u3002<\/td><\/tr><tr><td><strong>BBox Regression (\u4f4d\u7f6e)<\/strong><\/td><td><strong>\u4f4d\u7f6e\u5206\u652f<\/strong><\/td><td>\u9884\u6d4b\u76ee\u6807\u8fb9\u754c\u6846\u76f8\u5bf9\u4e8e\u5f53\u524d\u7f51\u683c\u4f4d\u7f6e\u7684\u7cbe\u7ec6\u504f\u79fb\u91cf\u3002<\/td><td>\u4e2d\u5fc3\u5750\u6807\uff08tx, ty\uff09\u4f7f\u7528<strong>Sigmoid<\/strong>\u51fd\u6570\u7ea6\u675f\u5230(0,1)\uff1b\u5bbd\u9ad8\uff08tw, th\uff09\u91c7\u7528&nbsp;<strong>\u201clog-exp\u201d<\/strong>&nbsp;\u53d8\u6362\uff08\u4e5f\u79f0\u4e3a\u7ebf\u6027\u5316\u5904\u7406\u6216\u91cd\u53c2\u6570\u5316\uff09\u8fdb\u884c\u9884\u6d4b\u3002<\/td><td><strong>Sigmoid<\/strong>\u786e\u4fdd\u4e2d\u5fc3\u70b9\u4e0d\u6ea2\u51fa\u7f51\u683c\uff1b<strong>\u201clog-exp\u201d<\/strong>&nbsp;\u6539\u5584\u8bad\u7ec3\u7a33\u5b9a\u6027\u5e76\u7f13\u89e3\u5c3a\u5ea6\u654f\u611f\u6027\u95ee\u9898\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&nbsp;<strong>\u6838\u5fc3\u6982\u5ff5\u8be6\u89e3<\/strong><\/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>Objectness\u9884\u6d4b\uff08\u201c\u6709\u65e0\u201d\u7684\u9884\u6d4b\uff09<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b83\u662f\u4ec0\u4e48<\/strong>\uff1a\u8fd9\u662f\u4e00\u4e2a\u4e8c\u5206\u7c7b\u95ee\u9898\uff0c\u5b83\u7684\u4efb\u52a1\u975e\u5e38\u7eaf\u7cb9\uff1a<strong>\u5224\u65ad\u7f51\u683c\u7684\u67d0\u4e2a\u4f4d\u7f6e\u201c\u6709\u6ca1\u6709\u201d\u4e00\u4e2a\u7269\u4f53<\/strong>\uff0c\u800c\u4e0d\u5173\u5fc3\u8fd9\u4e2a\u7269\u4f53\u5177\u4f53\u662f\u4ec0\u4e48\uff0c\u6216\u8005\u6846\u5f97\u51c6\u4e0d\u51c6\u3002<\/li>\n\n\n\n<li><strong>\u539f\u6587\u7684\u56f0\u60d1\u4e0e\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u539f\u6765\u7684\u505a\u6cd5\uff08YOLOv1\uff09<\/strong>\uff1a\u8bad\u7ec3\u65f6\uff0c\u8ba9\u7f51\u7edc\u76f4\u63a5\u9884\u6d4b\u8fb9\u754c\u6846\u4e0e\u771f\u5b9e\u6846\u7684<strong>IoU\uff08\u4ea4\u5e76\u6bd4\uff09<\/strong>\u00a0\u4f5c\u4e3a\u7f6e\u4fe1\u5ea6\u3002\u7406\u60f3\u5f88\u7f8e\u597d\uff0c\u5e0c\u671b\u8fd9\u4e2a\u503c\u65e2\u80fd\u8868\u793a\u201c\u6709\u65e0\u201d\uff08IoU>0\u5c31\u662f\u6709\uff09\uff0c\u53c8\u80fd\u8868\u793a\u201c\u591a\u51c6\u201d\uff08IoU\u8d8a\u9ad8\u8d8a\u51c6\uff09\u3002<\/li>\n\n\n\n<li><strong>\u95ee\u9898\u6240\u5728<\/strong>\uff1a\u4f46\u4e8b\u5b9e\u4e0a\uff0c\u201c\u6709\u65e0\u201d\u662f<strong>\u8bed\u4e49\u4fe1\u606f<\/strong>\uff08\u9700\u8981\u770b\u5185\u5bb9\uff09\uff0c\u201c\u591a\u51c6\u201d\u662f<strong>\u5b9a\u4f4d\u4fe1\u606f<\/strong>\uff08\u9700\u8981\u770b\u6846\u7ebf\uff09\u3002\u8ba9\u4e00\u4e2a\u4fe1\u53f7\u540c\u65f6\u5b66\u4e60\u4e24\u79cd\u5dee\u5f02\u8f83\u5927\u7684\u4fe1\u606f\uff0c\u4f1a\u5bfc\u81f4\u5b66\u4e60\u76ee\u6807\u4e0d\u6e05\u6670\uff0c\u5bb9\u6613\u4ea7\u751f\u77db\u76fe\u3002\u4f8b\u5982\uff0c\u4e00\u4e2a\u6846\u53ef\u80fd\u6846\u5f97\u5f88\u51c6\uff08IoU\u9ad8\uff09\uff0c\u4f46\u7f51\u7edc\u5bf9\u91cc\u9762\u662f\u5426\u6709\u7269\u4f53\uff08\u8bed\u4e49\uff09\u7684\u5224\u65ad\u53ef\u80fd\u5f88\u72b9\u8c6b\uff0c\u5bfc\u81f4\u6700\u7ec8\u7f6e\u4fe1\u5ea6\u4e0d\u9ad8\u3002<\/li>\n\n\n\n<li><strong>\u6539\u8fdb\u7b56\u7565<\/strong>\uff1a\u4e8e\u662f\uff0c\u4f5c\u8005\u63d0\u51fa\u5c06\u5176<strong>\u7b80\u5316\u4e3a\u4e00\u4e2a\u4e8c\u5206\u7c7b\u95ee\u9898<\/strong>\u3002\u8bad\u7ec3\u6807\u7b7e\u76f4\u63a5\u5c31\u662f0\uff08\u8be5\u4f4d\u7f6e\u6ca1\u7269\u4f53\uff09\u62161\uff08\u8be5\u4f4d\u7f6e\u6709\u7269\u4f53\uff09\u3002<strong>Sigmoid<\/strong>\u51fd\u6570\u975e\u5e38\u9002\u5408\u5c06\u7f51\u7edc\u7684\u539f\u59cb\u8f93\u51fa\u6620\u5c04\u5230\u4e00\u4e2a(0, 1)\u7684\u6982\u7387\uff0c\u6765\u8868\u793a\u201c\u6709\u7269\u4f53\u7684\u53ef\u80fd\u6027\u201d\u3002<strong>\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u5b66\u4e60\u76ee\u6807\u53d8\u5f97\u975e\u5e38\u6e05\u6670\u548c\u7a33\u5b9a<\/strong>\uff0c\u7f51\u7edc\u53ea\u9700\u8981\u4e13\u6ce8\u4e8e\u4ece\u5916\u89c2\u7279\u5f81\u4e2d\u5224\u65ad\u201c\u6709\u65e0\u201d\uff0c\u4e0d\u518d\u53d7\u5b9a\u4f4d\u8d28\u91cf\u7684\u5e72\u6270\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>Classification\u9884\u6d4b\uff08\u201c\u662f\u4ec0\u4e48\u201d\u7684\u9884\u6d4b\uff09<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b83\u662f\u4ec0\u4e48<\/strong>\uff1a\u5728\u786e\u5b9a\u201c\u6709\u7269\u4f53\u201d\u7684\u524d\u63d0\u4e0b\uff0c\u8fdb\u4e00\u6b65\u5224\u65ad\u8fd9\u4e2a\u7269\u4f53<strong>\u5c5e\u4e8e\u5404\u4e2a\u7c7b\u522b\u7684\u6982\u7387<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u539f\u6587\u7684\u8bbe\u8ba1<\/strong>\uff1a classification\u9884\u6d4b\u548cobjectness\u9884\u6d4b\u90fd\u91c7\u7528Decoupled\u7684\u540c\u4e00\u5206\u652f\u3002<\/li>\n\n\n\n<li><strong>Sigmoid vs. Softmax<\/strong>\uff1a\u8fd9\u91cc\u63d0\u5230\u7528<strong>Sigmoid<\/strong>\u800c\u975eSoftmax\u6765\u8f93\u51fa\u7c7b\u522b\u6982\u7387\u3002\u8fd9\u662f\u4e00\u4e2a\u91cd\u8981\u7ec6\u8282\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>Softmax<\/strong>\u5047\u8bbe\u6240\u6709\u7c7b\u522b\u662f<strong>\u4e92\u65a5<\/strong>\u7684\uff08\u4e00\u4e2a\u7269\u4f53\u53ea\u80fd\u662f\u732b\u3001\u72d7\u6216\u8f66\uff0c\u4e0d\u80fd\u540c\u65f6\u662f\uff09\uff0c\u6240\u6709\u7c7b\u522b\u7684\u6982\u7387\u4e4b\u548c\u4e3a1\u3002<\/li>\n\n\n\n<li><strong>Sigmoid<\/strong>\u5219\u662f<strong>\u72ec\u7acb<\/strong>\u5730\u5224\u65ad\u6bcf\u4e2a\u7c7b\u522b\u662f\u5426\u5b58\u5728\u3002\u8fd9\u66f4\u7075\u6d3b\uff0c\u53ef\u4ee5\u5904\u7406<strong>\u591a\u6807\u7b7e\u95ee\u9898<\/strong>\uff08\u4f8b\u5982\uff0c\u4e00\u4e2a\u7269\u4f53\u540c\u65f6\u662f\u201c\u8f66\u201d\u548c\u201c\u6551\u62a4\u8f66\u201d\uff09\uff0c\u4e5f\u66f4\u9002\u5408\u73b0\u4ee3\u6570\u636e\u96c6\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u590d\u6742\u60c5\u51b5\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<ul class=\"wp-block-list\">\n<li><strong>Sigmoid<\/strong>\uff1a\u7528\u4e8e<strong>\u4e8c\u5206\u7c7b<\/strong>\uff0c\u5c06\u5355\u4e2a\u6570\u503c\u538b\u7f29\u4e3a(0,1)\u7684\u6982\u7387\uff0c\u8868\u793a\u201c\u662f\u201d\u6216\u201c\u4e0d\u662f\u201d\u7684\u53ef\u80fd\u6027\u3002<\/li>\n\n\n\n<li><strong>Softmax<\/strong>\uff1a\u7528\u4e8e<strong>\u591a\u5206\u7c7b<\/strong>\uff0c\u5c06\u4e00\u7ec4\u6570\u503c\u538b\u7f29\u4e3a(0,1)\u7684\u6982\u7387\u5206\u5e03\uff0c\u6240\u6709\u7c7b\u522b\u6982\u7387\u4e4b\u548c\u4e3a1\uff0c\u8868\u793a\u5c5e\u4e8e\u6bcf\u4e2a\u7c7b\u522b\u7684\u53ef\u80fd\u6027\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=\"3\" class=\"wp-block-list\">\n<li>BBox Regression\u9884\u6d4b\uff08\u201c\u5728\u54ea\u201d\u7684\u9884\u6d4b\uff09 \u8fd9\u662f\u6700\u590d\u6742\u7684\u4e00\u90e8\u5206\uff0c\u539f\u6587\u4e3b\u8981\u8ba8\u8bba\u4e86\u5982\u4f55<strong>\u7a33\u5b9a\u5730<\/strong>\u9884\u6d4b\u8fb9\u754c\u6846\u7684\u504f\u79fb\u91cf\u3002<\/li>\n<\/ol>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u76ee\u6807<\/strong>\uff1a\u9884\u6d4b\u8fb9\u754c\u6846\u7684\u4e2d\u5fc3\u5750\u6807\uff08<strong>x, y<\/strong>\uff09\u548c\u5bbd\u9ad8\uff08<strong>w, h<\/strong>\uff09\u3002<\/li>\n\n\n\n<li><strong>\u95ee\u9898\uff08a\uff09\uff1a\u4e2d\u5fc3\u5750\u6807\uff08x, y\uff09\u7684\u8fb9\u754c\u95ee\u9898<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u80cc\u666f<\/strong>\uff1a\u5728YOLO\u4e2d\uff0c\u76ee\u6807\u4e2d\u5fc3\u70b9\u7684\u504f\u79fb\u91cf\u662f\u76f8\u5bf9\u4e8e\u5b83\u6240\u5728\u7f51\u683c\u7684\u5de6\u4e0a\u89d2\u8ba1\u7b97\u7684\u3002\u56e0\u6b64\uff0c\u65e0\u8bba\u600e\u4e48\u504f\u79fb\uff0c\u8fd9\u4e2a\u70b9\u90fd<strong>\u4e0d\u5e94\u8be5\u8dd1\u51fa\u5f53\u524d\u7f51\u683c<\/strong>\uff0c\u6240\u4ee5\u504f\u79fb\u91cf\u7406\u8bba\u4e0a\u5e94\u8be5\u5728<strong>0\u52301\u4e4b\u95f4<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u539f\u7248YOLOv1\u7684\u9690\u60a3<\/strong>\uff1a\u539f\u7248\u4f7f\u7528\u7ebf\u6027\u8f93\u51fa\uff0c\u6ca1\u6709\u9650\u5236\u8303\u56f4\u3002\u7f51\u7edc\u5728\u8bad\u7ec3\u521d\u671f\u53ef\u80fd\u9884\u6d4b\u51fa\u5f88\u5927\u7684\u6570\u503c\uff08\u5982100\uff0c -50\uff09\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u68af\u5ea6\u5267\u70c8\u6ce2\u52a8\uff0c\u8bad\u7ec3\u4e0d\u7a33\u5b9a\u3002<\/li>\n\n\n\n<li><strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a\u4f7f\u7528\u00a0<strong>Sigmoid<\/strong>\u51fd\u6570\u5c06\u8f93\u51fa\u7ea6\u675f\u5728(0, 1)\u8303\u56f4\u5185\u3002<strong>\u8fd9\u6837\u786e\u4fdd\u4e86\u9884\u6d4b\u7684\u504f\u79fb\u91cf\u4e00\u5b9a\u662f\u5408\u7406\u7684\uff0c\u6781\u5927\u589e\u5f3a\u4e86\u8bad\u7ec3\u7684\u7a33\u5b9a\u6027\u3002<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u95ee\u9898\uff08b\uff09\uff1a\u5bbd\u9ad8\uff08w, h\uff09\u7684\u6b63\u6570\u6027\u548c\u5c3a\u5ea6\u95ee\u9898<\/strong><ul><li><strong>\u89e3\u51b3\u6b63\u6570\u95ee\u9898<\/strong>\uff1a<code>log<\/code>\u51fd\u6570\u7684\u5b9a\u4e49\u57df\u5c31\u662f\u6b63\u6570\uff0c\u4ece\u7f51\u7edc\u8bbe\u8ba1\u4e0a\u5c31\u907f\u514d\u4e86\u8d1f\u503c\u95ee\u9898\u3002<\/li><li><strong>\u7f13\u89e3\u5c3a\u5ea6\u5dee\u5f02<\/strong>\uff1a<code>log<\/code>\u51fd\u6570\u80fd<strong>\u538b\u7f29\u6570\u503c\u7684\u52a8\u6001\u8303\u56f4<\/strong>\u3002\u4e00\u4e2a\u5927\u76ee\u6807\uff08w=100\uff09\u548c\u4e00\u4e2a\u5c0f\u76ee\u6807\uff08w=10\uff09\u4e4b\u95f4\u7684\u7edd\u5bf9\u5dee\u662f90\uff0c\u4f46\u7ecf\u8fc7log\u53d8\u6362\u540e\uff0c<code>log(100)=4.6<\/code>,\u00a0<code>log(10)=2.3<\/code>\uff0c\u5b83\u4eec\u7684\u5dee\u53d8\u6210\u4e862.3\u3002\u8fd9\u4e2a\u53d8\u5316\u8303\u56f4\u66f4\u5c0f\uff0c\u4f7f\u5f97\u7f51\u7edc\u5bf9\u4e0d\u540c\u5c3a\u5bf8\u7684\u76ee\u6807\u7684\u56de\u5f52\u96be\u5ea6\u66f4\u52a0\u5747\u8861\uff0c<strong>\u8ba9\u5c0f\u76ee\u6807\u548c\u5927\u76ee\u6807\u7684\u5b66\u4e60\u96be\u5ea6\u76f8\u5bf9\u62c9\u5e73<\/strong>\uff0c\u6539\u5584\u4e86\u8bad\u7ec3\u6548\u679c\u3002<\/li><\/ul><ul><li><strong>ReLU<\/strong>\uff1a\u53ef\u4ee5\u4fdd\u8bc1\u975e\u8d1f\uff0c\u4f46\u53ef\u80fd\u4f1a\u201c\u6740\u6b7b\u201d\u795e\u7ecf\u5143\uff08\u68af\u5ea6\u4e3a0\uff09\uff0c\u4e14\u6ca1\u6709\u4e0a\u9650\u3002<\/li><li><strong>Sigmoid<\/strong>\uff1a\u867d\u7136\u80fd\u7ea6\u675f\u5230(0,1)\uff0c\u4f46\u5b83\u662f\u5e73\u7b49\u5730\u538b\u7f29\u6240\u6709\u5c3a\u5ea6\u7684\u503c\u3002\u5bf9\u4e8e\u5c0f\u76ee\u6807\uff0c\u5bbd\u9ad8\u672c\u8eab\u5f88\u5c0f\uff0cSigmoid\u591f\u7528\uff1b\u4f46\u5bf9\u4e8e\u5927\u76ee\u6807\uff0c\u5176\u5bbd\u9ad8\u53ef\u80fd\u88ab\u538b\u7f29\u5728Sigmoid\u66f2\u7ebf\u9760\u8fd11\u7684\u9971\u548c\u533a\uff0c\u5bfc\u81f4\u68af\u5ea6\u6d88\u5931\uff0c\u96be\u4ee5\u5b66\u4e60\u3002<\/li><\/ul><ul><li><strong>\u80cc\u666f<\/strong>\uff1a\u5bbd\u9ad8\u5fc5\u987b\u662f<strong>\u6b63\u6570<\/strong>\u3002<\/li><li><strong>\u539f\u7248YOLOv1\u7684\u9690\u60a3<\/strong>\uff1a\u7ebf\u6027\u8f93\u51fa\u540c\u6837\u53ef\u80fd\u4ea7\u751f\u8d1f\u503c\uff0c\u8fd9\u662f\u6ca1\u6709\u610f\u4e49\u7684\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u8bad\u7ec3\u4e0d\u7a33\u5b9a\u3002<\/li><li><strong>\u521d\u671f\u65b9\u6848\uff08ReLU\/Sigmoid\uff09\u7684\u7f3a\u70b9<\/strong>\uff1a<\/li><li><strong>\u63a8\u8350\u7684\u201clog-exp\u201d\u65b9\u6cd5<\/strong>\uff1a<\/li><\/ul>\n<ol class=\"wp-block-list\">\n<li><strong>\u5b66\u4e60\u76ee\u6807\u53d8\u6362<\/strong>\uff1a\u4e0d\u8ba9\u7f51\u7edc\u76f4\u63a5\u9884\u6d4b\u5bbd\u9ad8\u00a0<code>w<\/code>\u00a0\u548c\u00a0<code>h<\/code>\uff0c\u800c\u662f\u8ba9\u5b83\u4eec\u5b66\u4e60\u00a0<code>tw = log(w \/ stride)<\/code>,\u00a0<code>th = log(h \/ stride)<\/code>\u3002\u8fd9\u91cc\u7684<code>stride<\/code>\u662f\u4e0b\u91c7\u6837\u500d\u6570\uff0c\u7528\u4e8e\u5c06\u771f\u5b9e\u5bbd\u9ad8\u6620\u5c04\u56de\u7279\u5f81\u56fe\u7684\u5c3a\u5ea6\u3002<\/li>\n\n\n\n<li><strong>\u4e3a\u4ec0\u4e48\u6709\u6548<\/strong>\uff1a<\/li>\n\n\n\n<li><strong>\u63a8\u7406\u65f6\u8f6c\u6362\u56de\u6765<\/strong>\uff1a\u5728\u9884\u6d4b\u65f6\uff0c\u53ea\u9700\u8981\u5bf9\u7f51\u7edc\u7684\u8f93\u51fa\u00a0<code>tw_pred<\/code>,\u00a0<code>th_pred<\/code>\u00a0\u8fdb\u884c\u00a0<code>exp<\/code>\u00a0\u64cd\u4f5c\uff0c\u518d\u4e58\u4e0a\u00a0<code>stride<\/code>\uff0c\u5c31\u80fd\u6062\u590d\u5230\u539f\u56fe\u4e0a\u7684\u5bbd\u9ad8\uff1a<code>w_pred = exp(tw_pred) * stride<\/code>\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow 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