{"id":1065,"date":"2021-12-31T15:58:10","date_gmt":"2021-12-31T07:58:10","guid":{"rendered":"http:\/\/139.9.1.231\/?p=1065"},"modified":"2022-08-29T16:21:51","modified_gmt":"2022-08-29T08:21:51","slug":"yolov3","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2021\/12\/31\/yolov3\/","title":{"rendered":"YOLO\u7cfb\u5217\uff08\u56db\uff09\uff1ayolov3"},"content":{"rendered":"\n<p>              yolov3\u5c5e\u4e8e\u4e00\u9636\u6bb5\u3001<strong>anchor-based\u00a0\u76ee\u6807\u68c0\u6d4b<\/strong>  <\/p>\n\n\n\n<p class=\"has-yellow-background-color has-background\"> FPN \uff1a<\/p>\n\n\n\n<p>         \u539f\u6765\u591a\u6570\u7684object detection\u7b97\u6cd5\u90fd\u662f\u53ea\u91c7\u7528\u9876\u5c42\u7279\u5f81\u505a\u9884\u6d4b\uff0c\u4f46\u6211\u4eec\u77e5\u9053\u4f4e\u5c42\u7684\u7279\u5f81\u8bed\u4e49\u4fe1\u606f\u6bd4\u8f83\u5c11\uff0c\u4f46\u662f\u76ee\u6807\u4f4d\u7f6e\u51c6\u786e\uff1b\u9ad8\u5c42\u7684\u7279\u5f81\u8bed\u4e49\u4fe1\u606f\u6bd4\u8f83\u4e30\u5bcc\uff0c\u4f46\u662f\u76ee\u6807\u4f4d\u7f6e\u6bd4\u8f83\u7c97\u7565\u3002\u53e6\u5916\u867d\u7136\u4e5f\u6709\u4e9b\u7b97\u6cd5\u91c7\u7528\u591a\u5c3a\u5ea6\u7279\u5f81\u878d\u5408\u7684\u65b9\u5f0f\uff0c\u4f46\u662f\u4e00\u822c\u662f\u91c7\u7528\u878d\u5408\u540e\u7684\u7279\u5f81\u505a\u9884\u6d4b\uff0c\u800c\u672c\u6587\u4e0d\u4e00\u6837\u7684\u5730\u65b9\u5728\u4e8e\u9884\u6d4b\u662f\u5728\u4e0d\u540c\u7279\u5f81\u5c42\u72ec\u7acb\u8fdb\u884c\u7684\u3002<\/p>\n\n\n\n<p>FPN\uff08Feature Pyramid Network\uff09\u7b97\u6cd5\u53ef\u4ee5\u540c\u65f6\u5229\u7528\u4f4e\u5c42\u7279\u5f81\u9ad8\u5206\u8fa8\u7387\u548c\u9ad8\u5c42\u7279\u5f81\u7684\u9ad8\u8bed\u4e49\u4fe1\u606f\uff0c\u901a\u8fc7\u878d\u5408\u8fd9\u4e9b\u4e0d\u540c\u5c42\u7684\u7279\u5f81\u8fbe\u5230\u5f88\u597d\u7684\u9884\u6d4b\u6548\u679c\u3002\u6b64\u5916\uff0c\u548c\u5176\u4ed6\u7684\u7279\u5f81\u878d\u5408\u65b9\u5f0f\u4e0d\u540c\u7684\u662f\u672c\u6587\u4e2d\u7684\u9884\u6d4b\u662f\u5728\u6bcf\u4e2a\u878d\u5408\u540e\u7684\u7279\u5f81\u5c42\u4e0a\u5355\u72ec\u8fdb\u884c\u7684\u3002\uff08\u5bf9\u4e0d\u540c\u7279\u5f81\u5c42\u5355\u72ec\u9884\u6d4b\uff09<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img loading=\"lazy\" width=\"710\" height=\"412\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2021\/12\/image-6.png\" alt=\"\" class=\"wp-image-1067\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2021\/12\/image-6.png 710w, http:\/\/139.9.1.231\/wp-content\/uploads\/2021\/12\/image-6-300x174.png 300w\" sizes=\"(max-width: 710px) 100vw, 710px\" \/><\/figure>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">\u7f51\u7edc\u7ed3\u6784\u89e3\u6790\uff1a<\/p>\n\n\n\n<ol><li>Yolov3\u4e2d\uff0c\u53ea\u6709\u5377\u79ef\u5c42\uff0c\u901a\u8fc7<strong>\u8c03\u8282\u5377\u79ef\u6b65\u957f\u63a7\u5236\u8f93\u51fa\u7279\u5f81\u56fe\u7684\u5c3a\u5bf8<\/strong>\u3002\u6240\u4ee5\u5bf9\u4e8e\u8f93\u5165\u56fe\u7247\u5c3a\u5bf8\u6ca1\u6709\u7279\u522b\u9650\u5236\u3002\u6d41\u7a0b\u56fe\u4e2d\uff0c\u8f93\u5165\u56fe\u7247\u4ee5256*256\u4f5c\u4e3a\u6837\u4f8b\u3002<\/li><li>Yolov3\u501f\u9274\u4e86<strong>\u91d1\u5b57\u5854\u7279\u5f81\u56fe<\/strong>\u601d\u60f3\uff0c<strong>\u5c0f\u5c3a\u5bf8\u7279\u5f81\u56fe\u7528\u4e8e\u68c0\u6d4b\u5927\u5c3a\u5bf8\u7269\u4f53<\/strong>\uff0c\u800c<strong>\u5927\u5c3a\u5bf8\u7279\u5f81\u56fe\u68c0\u6d4b\u5c0f\u5c3a\u5bf8\u7269\u4f53<\/strong>\u3002\u7279\u5f81\u56fe\u7684\u8f93\u51fa\u7ef4\u5ea6\u4e3a&nbsp;<img src=\"https:\/\/www.zhihu.com\/equation?tex=N%5Ctimes+N+%5Ctimes+%5B3+%5Ctimes+%284+%2B+1+%2B+80%29%5D\" alt=\"[\u516c\u5f0f]\">&nbsp;\uff0c&nbsp;<img src=\"https:\/\/www.zhihu.com\/equation?tex=N%5Ctimes+N\" alt=\"[\u516c\u5f0f]\">&nbsp;\u4e3a\u8f93\u51fa\u7279\u5f81\u56fe\u683c\u70b9\u6570\uff0c\u4e00\u51713\u4e2aAnchor\u6846\uff0c\u6bcf\u4e2a\u6846\u67094\u7ef4\u9884\u6d4b\u6846\u6570\u503c&nbsp;<img src=\"https:\/\/www.zhihu.com\/equation?tex=t_x+%2Ct_y+%2Ct_w%2C+t_h\" alt=\"[\u516c\u5f0f]\">&nbsp;\uff0c1\u7ef4\u9884\u6d4b\u6846\u7f6e\u4fe1\u5ea6\uff0c80\u7ef4\u7269\u4f53\u7c7b\u522b\u6570\u3002\u6240\u4ee5\u7b2c\u4e00\u5c42\u7279\u5f81\u56fe\u7684\u8f93\u51fa\u7ef4\u5ea6\u4e3a&nbsp;<img src=\"https:\/\/www.zhihu.com\/equation?tex=8+%5Ctimes+8+%5Ctimes+255\" alt=\"[\u516c\u5f0f]\">&nbsp;\u3002<\/li><li>Yolov3\u603b\u5171\u8f93\u51fa3\u4e2a\u7279\u5f81\u56fe\uff0c\u7b2c\u4e00\u4e2a\u7279\u5f81\u56fe\u4e0b\u91c7\u683732\u500d\uff0c\u7b2c\u4e8c\u4e2a\u7279\u5f81\u56fe\u4e0b\u91c7\u683716\u500d\uff0c\u7b2c\u4e09\u4e2a\u4e0b\u91c7\u68378\u500d\u3002\u8f93\u5165\u56fe\u50cf\u7ecf\u8fc7Darknet-53\uff08\u65e0\u5168\u8fde\u63a5\u5c42\uff09\uff0c\u518d\u7ecf\u8fc7Yoloblock\u751f\u6210\u7684\u7279\u5f81\u56fe\u88ab\u5f53\u4f5c\u4e24\u7528\uff0c\u7b2c\u4e00\u7528\u4e3a\u7ecf\u8fc73*3\u5377\u79ef\u5c42\u30011*1\u5377\u79ef\u4e4b\u540e\u751f\u6210\u7279\u5f81\u56fe\u4e00\uff0c\u7b2c\u4e8c\u7528\u4e3a\u7ecf\u8fc71*1\u5377\u79ef\u5c42\u52a0\u4e0a\u91c7\u6837\u5c42\uff0c\u4e0eDarnet-53\u7f51\u7edc\u7684\u4e2d\u95f4\u5c42\u8f93\u51fa\u7ed3\u679c\u8fdb\u884c\u62fc\u63a5\uff0c\u4ea7\u751f\u7279\u5f81\u56fe\u4e8c\u3002\u540c\u6837\u7684\u5faa\u73af\u4e4b\u540e\u4ea7\u751f\u7279\u5f81\u56fe\u4e09\u3002<\/li><li>concat\u64cd\u4f5c\u4e0e\u52a0\u548c\u64cd\u4f5c\u7684\u533a\u522b\uff1a\u52a0\u548c\u64cd\u4f5c\u6765\u6e90\u4e8eResNet\u601d\u60f3\uff0c\u5c06\u8f93\u5165\u7684\u7279\u5f81\u56fe\uff0c\u4e0e\u8f93\u51fa\u7279\u5f81\u56fe\u5bf9\u5e94\u7ef4\u5ea6\u8fdb\u884c\u76f8\u52a0\uff0c\u5373&nbsp;<img src=\"https:\/\/www.zhihu.com\/equation?tex=y+%3D+f%28x%29%2Bx\" alt=\"[\u516c\u5f0f]\">&nbsp;\uff1b\u800cconcat\u64cd\u4f5c\u6e90\u4e8eDenseNet\u7f51\u7edc\u7684\u8bbe\u8ba1\u601d\u8def\uff0c\u5c06\u7279\u5f81\u56fe\u6309\u7167\u901a\u9053\u7ef4\u5ea6\u76f4\u63a5\u8fdb\u884c\u62fc\u63a5\uff0c\u4f8b\u59828*8*16\u7684\u7279\u5f81\u56fe\u4e0e8*8*16\u7684\u7279\u5f81\u56fe\u62fc\u63a5\u540e\u751f\u62108*8*32\u7684\u7279\u5f81\u56fe\u3002<\/li><li>\u4e0a\u91c7\u6837\u5c42(upsample)\uff1a\u4f5c\u7528\u662f\u5c06\u5c0f\u5c3a\u5bf8\u7279\u5f81\u56fe\u901a\u8fc7\u63d2\u503c\u7b49\u65b9\u6cd5\uff0c\u751f\u6210\u5927\u5c3a\u5bf8\u56fe\u50cf\u3002\u4f8b\u5982\u4f7f\u7528\u6700\u8fd1\u90bb\u63d2\u503c\u7b97\u6cd5\uff0c\u5c068*8\u7684\u56fe\u50cf\u53d8\u6362\u4e3a16*16\u3002\u4e0a\u91c7\u6837\u5c42\u4e0d\u6539\u53d8\u7279\u5f81\u56fe\u7684\u901a\u9053\u6570\u3002<\/li><\/ol>\n\n\n\n<p>Yolo\u7684\u6574\u4e2a\u7f51\u7edc\uff0c\u5438\u53d6\u4e86Resnet\u3001Densenet\u3001FPN\u7684\u7cbe\u9ad3\uff0c\u53ef\u4ee5\u8bf4\u662f\u878d\u5408\u4e86\u76ee\u6807\u68c0\u6d4b\u5f53\u524d\u4e1a\u754c\u6700\u6709\u6548\u7684\u5168\u90e8\u6280\u5de7\u3002<\/p>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic4.zhimg.com\/v2-ffbc5b713c98c13e2659bb528b05fd67_r.jpg\" alt=\"\"\/><figcaption>YOLOv3\u7f51\u7edc\u7ed3\u6784\u793a\u610f\u56fe\uff08VOC\u6570\u636e\u96c6\uff09<\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" width=\"485\" height=\"619\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2021\/12\/v2-4eb082a3b41451556077cc3be64d8a91_r-1.jpg\" alt=\"\" class=\"wp-image-1069\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2021\/12\/v2-4eb082a3b41451556077cc3be64d8a91_r-1.jpg 485w, http:\/\/139.9.1.231\/wp-content\/uploads\/2021\/12\/v2-4eb082a3b41451556077cc3be64d8a91_r-1-235x300.jpg 235w\" sizes=\"(max-width: 485px) 100vw, 485px\" \/><figcaption>YOLOv3\u6240\u7528\u7684Darknet-53\u6a21\u578b<\/figcaption><\/figure><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>yolov3\u5c5e\u4e8e\u4e00\u9636\u6bb5\u3001anchor-based\u00a0\u76ee\u6807\u68c0\u6d4b FPN \uff1a \u539f\u6765\u591a\u6570\u7684object detecti &hellip; <a href=\"http:\/\/139.9.1.231\/index.php\/2021\/12\/31\/yolov3\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">YOLO\u7cfb\u5217\uff08\u56db\uff09\uff1ayolov3<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,12,9],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1065"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=1065"}],"version-history":[{"count":5,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1065\/revisions"}],"predecessor-version":[{"id":6753,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1065\/revisions\/6753"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=1065"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=1065"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=1065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}