{"id":141,"date":"2023-02-16T03:06:06","date_gmt":"2023-02-15T19:06:06","guid":{"rendered":"http:\/\/106.52.213.145:21080\/?p=141"},"modified":"2023-03-21T01:56:55","modified_gmt":"2023-03-20T17:56:55","slug":"anchor-free-oriented-proposal-generator-for-object-detection","status":"publish","type":"post","link":"https:\/\/apifj.com\/index.php\/2023\/02\/16\/anchor-free-oriented-proposal-generator-for-object-detection\/","title":{"rendered":"[\u6587\u732e\u7b14\u8bb0]Anchor-free Oriented Proposal Generator for Object Detection"},"content":{"rendered":"

Anchor-free Oriented Proposal Generator for Object Detection<\/h1>\n

\u6982\u8981<\/h2>\n

\u8be5\u8bba\u6587\u63d0\u51fa\u4e86\u4e00\u79cd\u65b0\u7684\u65b9\u6cd5\u6765\u89e3\u51b3\u9762\u5411\u5bf9\u8c61\u68c0\u6d4b\u4e2d\u7684\u503e\u659c\u6846\u68c0\u6d4b\u95ee\u9898\u3002\u4f20\u7edf\u65b9\u6cd5\u4f7f\u7528\u6c34\u5e73\u6846\u6765\u63a8\u5bfc\u51fa\u503e\u659c\u6846\uff0c\u4f46\u6c34\u5e73\u6846\u5f80\u5f80\u4e0e\u771f\u5b9e\u6807\u6ce8\u7684\u4ea4\u5e76\u6bd4\u8f83\u5c0f\uff0c\u5f15\u5165\u4e86\u5197\u4f59\u566a\u58f0\u3001\u4e0d\u5339\u914d\u548c\u964d\u4f4e\u68c0\u6d4b\u5668\u7684\u9c81\u68d2\u6027\u7b49\u95ee\u9898\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u8bba\u6587\u63d0\u51fa\u4e86\u4e00\u79cd\u4e0d\u4f9d\u8d56\u6c34\u5e73\u6846\u7684Anchor-free Oriented Proposal Generator (AOPG)\u65b9\u6cd5\u3002OPG\u9996\u5148\u901a\u8fc7\u4e00\u4e2a\u57fa\u4e8e\u65e0anchor\u7684\u7c97\u5b9a\u4f4d\u6a21\u5757\uff08Coarse Location Module\uff0cCLM\uff09\u4ea7\u751f\u7c97\u7565\u7684\u65b9\u5411\u6846\uff0c\u7136\u540e\u5c06\u5176\u7ec6\u5316\u4e3a\u9ad8\u8d28\u91cf\u7684\u65b9\u5411\u6027\u63d0\u6848\u3002\u6700\u540e\uff0c\u4f7f\u7528Fast R-CNN\u5934\u6765\u751f\u6210\u6700\u7ec8\u7684\u68c0\u6d4b\u7ed3\u679c\u3002\u6b64\u5916\uff0c\u4e3a\u4e86\u7f13\u89e3\u5927\u89c4\u6a21\u6570\u636e\u96c6\u7684\u4e0d\u8db3\uff0c\u8be5\u8bba\u6587\u57fa\u4e8eDIOR\u6570\u636e\u96c6\u53d1\u5e03\u4e86\u4e00\u4e2a\u65b0\u7684\u6570\u636e\u96c6DIOR-R\u3002\u5728\u5927\u91cf\u5b9e\u9a8c\u4e2d\uff0c\u8be5\u65b9\u6cd5\u5728DIOR-R\u3001DOTA\u548cHRSC2016\u6570\u636e\u96c6\u4e0a\u5206\u522b\u5b9e\u73b0\u4e8664.41\uff05\u300175.24\uff05\u548c96.22\uff05\u7684mAP\u7cbe\u5ea6\uff0c\u8bc1\u660e\u4e86\u8be5\u65b9\u6cd5\u7684\u6709\u6548\u6027\u3002<\/p>\n

I INTRODUCTION<\/h2>\n

II RELATED WORK<\/h2>\n

III OUR APPROACH<\/h2>\n

A. Horizontal-Box Scheme V.S. Oriented-Box Scheme<\/h4>\n

\u5728\u4ecb\u7ecd\u6211\u4eec\u7684\u6a21\u578b\u4e4b\u524d\uff0c\u6211\u4eec\u6bd4\u8f83\u4e86\u6c34\u5e73\u6846\u67b6\u4e0e\u503e\u659c\u6846\u67b6\u5728\u5b9a\u5411\u76ee\u6807\u68c0\u6d4b\u4e2d\u7684IoU\u5206\u5e03\u548c\u56de\u5f52\u76ee\u6807\u5206\u5e03\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u5728DOTA\u6570\u636e\u96c6\u4e0a\u5206\u522b\u57fa\u4e8e\u6c34\u5e73\u6846\u67b6\u548c\u503e\u659c\u6846\u67b6\u8bad\u7ec3\u4e86Faster R-CNN\u548c\u6211\u4eec\u7684AOPG\u6a21\u578b\u3002\u9996\u5148\uff0c\u6211\u4eec\u968f\u673a\u9009\u53d65000\u4e2a\u6b63\u6837\u672c\u63d0\u6848\uff0c\u5e76\u8ba1\u7b97\u5b83\u4eec\u4e0e\u771f\u5b9e\u8fb9\u754c\u6846\u7684IoU\u3002\u6c34\u5e73\u63d0\u6848\u548c\u503e\u659c\u63d0\u6848\u7684IoU\u5206\u5e03\u5982\u56fe3\uff08a\uff09\u6240\u793a\u3002\u4ece\u56fe\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u5927\u591a\u6570\u6c34\u5e73\u63d0\u6848\u7684IoU\u5c0f\u4e8e0.5\uff0c\u800c\u6240\u6709\u503e\u659c\u63d0\u6848\u7684IoU\u5747\u5927\u4e8e0.5\uff0c\u8fd9\u5f97\u76ca\u4e8e\u503e\u659c\u6846\u67b6\u7684\u5206\u914d\u65b9\u5f0f\u3002\u8fd9\u8868\u660e\u6c34\u5e73\u63d0\u6848\u65e0\u6cd5\u4e0e\u771f\u5b9e\u8fb9\u754c\u6846\u51c6\u786e\u5339\u914d\u3002\u6b64\u5916\uff0c\u6c34\u5e73\u63d0\u6848\u503e\u5411\u4e8e\u4e0e\u771f\u5b9e\u8fb9\u754c\u6846\u7684IoU\u8f83\u5c0f\uff0c\u8fd9\u610f\u5473\u7740\u5176\u4e2d\u5b58\u5728\u80cc\u666f\u533a\u57df\u6216\u4e0d\u76f8\u5173\u7684\u7269\u4f53\uff0c\u8fd9\u663e\u7136\u4f1a\u964d\u4f4e\u5206\u7c7b\u548c\u56de\u5f52\u7684\u51c6\u786e\u6027\u3002<\/p>\n

\u6b64\u5916\uff0c\u6211\u4eec\u8ba1\u7b97\u4e86\u8fd9\u4e24\u79cd\u68c0\u6d4b\u5668\u7684\u56de\u5f52\u76ee\u6807\u5e76\u7ed9\u51fa\u4e86\u5b83\u4eec\u7684\u5206\u5e03\uff0c\u4ee5\u6c34\u5e73\u63d0\u6848\u548c\u503e\u659c\u63d0\u6848\u7684\u9ad8\u5ea6\u548c\u5bbd\u5ea6\u76ee\u6807\u503c\u8868\u793a\uff0c\u5206\u522b\u5982\u56fe3\uff08b\uff09\u548c\u56fe3\uff08c\uff09\u6240\u793a\u3002\u5f88\u660e\u663e\uff0c\u6c34\u5e73\u63d0\u6848\u7684\u76ee\u6807\u503c\u4e0d\u5bf9\u79f0\u5730\u5206\u5e03\u5728\u539f\u70b9\u5468\u56f4\uff0c\u8fd8\u6709\u5f88\u591a\u6837\u672c\u9700\u8981\u8fdb\u884c\u6781\u7aef\u7684\u56de\u5f52\u76ee\u6807\u503c\u8c03\u6574\uff0c\u8fd9\u4e9b\u95ee\u9898\u5c06\u589e\u52a0\u68c0\u6d4b\u5668\u7684\u8bad\u7ec3\u96be\u5ea6\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u503e\u659c\u63d0\u6848\u7684\u76ee\u6807\u503c\u5982\u56fe3\uff08c\uff09\u6240\u793a\uff0c\u89c4\u5219\u4e14\u5c0f\uff0c\u66f4\u9002\u5408\u68c0\u6d4b\u5668\u8fdb\u884c\u5b66\u4e60\u3002<\/p>\n

\u6839\u636e\u6bd4\u8f83\u7ed3\u679c\uff0c\u6211\u4eec\u8ba4\u4e3a\u5728\u68c0\u6d4b\u5668\u4e2d\u6d89\u53ca\u6c34\u5e73\u6846\u67b6\u4f1a\u964d\u4f4e\u6700\u7ec8\u5b9a\u5411\u76ee\u6807\u68c0\u6d4b\u7684\u51c6\u786e\u6027\u3002\u56e0\u6b64\uff0c\u6709\u5fc5\u8981\u4e22\u5f03\u68c0\u6d4b\u5668\u4e2d\u4e0e\u6c34\u5e73\u6846\u67b6\u76f8\u5173\u7684\u64cd\u4f5c\u3002\u8fd9\u9879\u7814\u7a76\u6fc0\u52b1\u6211\u4eec\u8bbe\u8ba1\u4e86AOPG\uff0c\u4e00\u79cd\u751f\u6210\u9ad8\u8d28\u91cf\u503e\u659c\u63d0\u6848\u7684\u65b0\u6846\u67b6\u3002<\/p>\n

B. \u7c97\u5b9a\u4f4d\u6a21\u578b\uff08CLM\uff09<\/h4>\n

\u65cb\u8f6c\u6846\u5b9a\u4e49<\/h5>\n

\"\"<\/p>\n

\u5c31\u50cf\u56fe4\u6240\u63cf\u8ff0\u7684\u90a3\u6837\uff0c\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u65cb\u8f6c\u7684\u6807\u7b7e\u503c<\/strong>\u4e3a <\/p>\n

(x_{gt},y_{gt},w_{gt},h_{gt},\u03b8_{gt})<\/code><\/pre>\n
\u5176\u4e2d\uff0c(x_{gt},y_{gt})<\/code>\u8868\u793a\u4e2d\u5fc3\u7684\u5750\u6807\uff0cw_gt \u548c h_gt \u8868\u793a\u5bbd\u5ea6\u548c\u9ad8\u5ea6,\u03b8_gt \u662f\u987a\u65f6\u9488\u65cb\u8f6c\u7684\u5176\u4e2d\u4e00\u4fa7\u4e0ex\u8f74\u7684\u5939\u89d2\uff0c\u8303\u56f4\u662f[\u2212\u03c0\/4 , \u03c0\/4 ]\u3002<\/p>\n
\u7ed9\u5b9a\u4e00\u4e2a\u6b63\u6837\u672c\u7528(x,y)\u8868\u793a\uff0c\u4ed6\u7684\u8ddd\u79bb\u5411\u91cf\u4e3a <\/p>\n
t_{gt}=(l,t,r,b)<\/code><\/pre>\n
\u5206\u522b\u4ee3\u8868\u7740\u5de6\uff0c\u4e0a\uff0c\u53f3\uff0c\u4e0b \u3002<\/p>\n
\u533a\u57df\u5206\u914d<\/h5>\n
\u57fa\u4e8e\u951a\u6846\u7684\u68c0\u6d4b\u5668\u5728\u951a\u6846\u548c\u6807\u7b7e\u503c\u7528 IOUs \u6765\u5206\u914d\u6b63\u6837\u672c\u548c\u526f\u6837\u672c\u3002\u4f46\u662f\u6211\u4eec\u7684CLM\u65cb\u8f6c\u6846\u76f4\u63a5\u7528\u70b9\u6765\u9884\u6d4b\u56de\u5f52 \uff0c\u6240\u4ee5\u6a21\u578b\u4e2d\u662f\u6ca1\u6709\u951a\u6846\u7684\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u7528\u4e00\u4e2a\u533a\u57df\u5206\u914d\u7684\u65b9\u5f0f\u6765\u53d6\u4ee3\u4f20\u7edf\u7684IOU\u5206\u914d\u3002\u5728\u8bad\u7ec3\u9636\u6bb5\uff0c\u6bcf\u4e00\u4e2a\u6807\u7b7e\u503c\u5c06\u9996\u5148\u6839\u636e\u6846\u7684\u5927\u5c0f\u5206\u914d\u4e00\u4e2aFPN\uff08\u91d1\u5b57\u5854\u7f51\u7edc\uff09\u7684\u7279\u5f81\u56fe\u3002\u63a5\u7740\uff0c\u6211\u4eec\u6295\u5c04\u7279\u5f81\u56fe\u56de\u539f\u56fe\u4e2d\u7136\u540e\u9009\u62e9\u5728\u6807\u7b7e\u503c\u4e2d\u5fc3\u533a\u57df\u7684\u4e3a\u6b63\u6837\u672c\u533a\u57df\uff0c\u5176\u4ed6\u7684\u4e3a\u526f\u6837\u672c\u533a\u57df\u3002<\/p>\n
\u7279\u522b\u5730\uff0c\u6211\u4eec\u4f7f\u7528\u7279\u5f81\u56fe\u7684\u4e94\u4e2a\u5c42\u6b21\u5b9a\u4e49\u4e3a<\/p>\n
{\\{P_2,P_3,P_4,P_5,P_6\\}}<\/code><\/pre>\n
\u4ed6\u4eec\u7684\u6b65\u957f\u5206\u522b\u4e3a<\/p>\n
{\\{s_2,s_3,s_4,s_5,s_6\\}}<\/code><\/pre>\n
\u4ed6\u4eec\u7684\u503c\u5206\u522b\u662f 4\uff0c8\uff0c16\uff0c32\uff0c64\u3002\u5c3a\u5bf8\u4e3a[\u03b1^2s_i^2\/2,2\u03b1^2s_i^2]<\/code>\u88ab\u5206\u914d\u7ed9P_i<\/code>, \u5176\u4e2d\uff0c\u03b1\u662f\u653e\u5927\u8fd9\u4e2a\u8303\u56f4\u7684\u53c2\u6570\u3002\u7279\u522b\u5730\uff0c\u6211\u4eec\u8bbe\u7f6e\u6700\u5c0f\u7684\u6807\u7b7e\u6846\u503cP2\u4e3a0\uff0c\u6700\u5927\u7684\u503cP6\u4e3a100000 \u6765\u8986\u76d6\u6240\u6709\u4e0d\u540c\u5c3a\u5bf8\u7684\u6807\u7b7e\u6846\u5927\u5c0f\u3002<\/p>\n
\u5728\u5206\u914d\u6bcf\u4e00\u4e2a\u6807\u7b7e\u6846\u7ed9\u4ed6\u4eec\u5bf9\u5e94\u7684\u7279\u5f81\u56fe\u540e\uff0c\u6211\u4eec\u5c06\u4f4d\u4e8e\u6807\u7b7e\u503c\u4e2d\u5fc3\u533a\u57df\u7684\u70b9\u6807\u8bb0\u4e3a\u6b63\u6837\u672c\u3002\u4e2d\u5fc3\u6807\u7b7e\u533a\u57df\u53ef\u4ee5\u88ab\u8868\u793a\u4e3a<\/p>\n
B_\u03c3 = (x_{gt},y_{gt},\u03c3w_{gt},\u03c3h_{gt},\u03b8_{gt})<\/code><\/pre>\n
\u5176\u4e2d\uff0c\u03c3\u662f\u4e2d\u5fc3\u533a\u57df\u7684\u4e00\u4e2a\u6bd4\u4f8b\uff08\u4e5f\u5c31\u662f\u5728\u4e2d\u5fc3\u5185\u7f29\u5c0f\u591a\u5c11\u4e3a\u6838\u5fc3\u533a\u57df\uff0c\u56fe4\u84dd\u8272\u90e8\u5206\uff09\u3002\u4e3a\u4e86\u5224\u65ad\u4e00\u4e2a\u70b9\u662f\u5426\u5728\u5728Pi\u4e2d\u7684B\u533a\u57df\uff0c\u6211\u4eec\u9700\u8981\u5c06\u8fd9\u4e2a\u70b9\u4ece\u56fe\u50cf\u5750\u6807\u7cfb\u8f6c\u53d8\u6210\u6807\u6ce8\u6846\u5750\u6807\u7cfb\u901a\u8fc7\u5982\u4e0b\u516c\u5f0f\uff1a<\/p>\n
\\left(\n\\begin{matrix}\nx'\\\\\ny'\n\\end{matrix}\n\\right)\n=\n\\left(\n\\begin{matrix}\ncos\u03b8_{gt}&-sin\u03b8_{gt}\\\\\nsin\u03b8_{gt}&cos\u03b8_{gt}\n\\end{matrix}\n\\right)\n\\left(\n\\begin{matrix}\nx-x_{gt}\\\\\ny-y_{gt}\n\\end{matrix}\n\\right)<\/code><\/pre>\n
(\u8fd9\u91cc\u662f\u77e9\u9635\u7684\u65cb\u8f6c\u516c\u5f0f\uff0c\u4e3b\u8981\u662f\u5c06\u56fe\u50cf\u7684\u5750\u6807\u7cfb\u8f6c\u53d8\u6210\u4ee5\u84dd\u8272\u6846\u4e3a\u5750\u6807\u7cfb\uff0c\u4e14\u5728 x_{gt},y_{gt}<\/code> \u8fd9\u4e2a\u70b9\u7684\u5730\u65b9\u662f0\uff0c0)<\/p>\n
\u5982\u679c\u70b9\u7684\u5750\u6807\u6ee1\u8db3|x'|< \u03c3 w_{gt} \/ 2 , |y'|< \u03c3 h_{gt} \/ 2<\/code> ,\u8fd9\u4e2a\u70b9\u5728\u8fd9\u4e2a\u533a\u57df\u91cc\u9762\uff0c\u90a3\u4e48\u4ed6\u4e3a\u6b63\u6837\u672c\uff0c\u5c31\u50cf\u56fe4\u4e2d\u84dd\u8272\u90e8\u5206\u4e00\u6837\u3002<\/p>\n
\u8bad\u7ec3<\/h5>\n
\"\"<\/p>\n
\u5982\u56fe2\u6240\u793a\uff0c\u6211\u4eec\u7684CLM\u6709\u4e09\u4e2a\u5206\u652f\uff0c\u6bcf\u4e00\u4e2a\u4f4d\u7f6e\u5206\u522b\u4ea7\u751f\u7c97\u65cb\u8f6c\u6846\u6210\u7ee9\u3001\u8ddd\u79bb\uff08\u4e5f\u5c31\u662f\u8ddd\u79bb\u5411\u91cf\uff09\u3001\u89d2\u5ea6\uff0c\u6211\u4eec\u7528  c,t,\u03b8<\/em> \u6765\u8868\u793a\u3002<\/p>\n
\u7c97\u65cb\u8f6c\u6846\u6210\u7ee9\u5206\u652f\u662f\u4e00\u4e2a\u5206\u7c7b\u7684\u5206\u652f\uff0c\u7528\u6765\u8868\u660e\u5728\u6807\u7b7e\u6846\u4e2d\u5fc3\u533a\u57df\u7684\u6982\u7387\uff0c\u6211\u4eec\u4f7f\u7528\u901a\u8fc7\u4e0a\u8ff0\u533a\u57df\u5206\u914d\u83b7\u5f97\u7684\u6240\u6709\u70b9\u6765\u8bad\u7ec3\u8be5\u5206\u652f\u3002<\/p>\n
\u8ddd\u79bb\u5411\u91cf\u5206\u652f\u7528\u6765\u9884\u6d4b\u6bcf\u4e2a\u5728\u7279\u5f81\u56fe\u7684\u70b9\u5230 \u5de6\uff0c\u4e0a\uff0c\u53f3\uff0c\u4e0b \u7684\u6807\u7b7e\u6846\u7684\u8ddd\u79bb\u3002\u56e0\u4e3a\u6807\u7b7e\u6846\u5750\u6807\u7cfb\u7cfb\u7edf\u548c\u56fe\u7247\u5750\u6807\u7cfb\u7cfb\u7edf\u4e0d\u5e73\u884c\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u7528\u548c\u533a\u57df\u5206\u914d\u540c\u6837\u7684\u65b9\u5f0f\u5c06\u7279\u5f81\u56fe\u8f6c\u5316\u5230\u6807\u7b7e\u6846\u5750\u6807\u7cfb\u7cfb\u7edf\u3002\u6211\u4eec\u53ef\u4ee5\u770b\u89c1\u56fe4\u8fd9\u4e2a\u6807\u7b7e\u6846\u70b9\uff08x,y\uff09\u7684\u8ddd\u79bb\u5411\u91cf<\/p>\n
t_{gt}=(l,t,r,v)<\/code><\/pre>\n
\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u516c\u5f0f\u6765\u8ba1\u7b97<\/p>\n
\\begin{cases}\nl=w_{gt}\/2+x',\\quad r=w_{gt}\/2-x' \\\\[2ex]\nt=h_{gt}\/2y',\\quad b=h_{gt}\/2-y'\n\\end{cases}<\/code><\/pre>\n
\u6211\u4eec\u8bad\u7ec3\u8ddd\u79bb\u5206\u652f\u901a\u8fc7\u5f52\u4e00\u5316\u7684\u8ddd\u79bb\u5411\u91cf<\/p>\n
t^*_{gt}=(l^*,t^*,r^*,b^*)\\\\\nt^*_{gt}=log(t_{gt}\/z)<\/code><\/pre>\n
\u5176\u4e2d\uff0cz\u662f\u6bcf\u4e2a\u7279\u5f81\u56fe\u4e2d\u5b9a\u4e49\u7684\u5f52\u4e00\u5316\u56e0\u5b50\u3002<\/p>\n
\u5728\u5b9a\u5411\u6846\u7684\u5b9a\u4e49\u4e2d\uff0c\u89d2\u5ea6\u5728\u5bf9\u79f0\u533a\u95f4\u5185\uff0c\u4e5f\u5c31\u662f \u03b8_{gt} \u2208 [\u2212\u03c0\/4, \u03c0\/4]<\/code>\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u76f4\u63a5\u4f7f\u7528\u771f\u5b9e\u89d2\u5ea6\u4f5c\u4e3a\u76ee\u6807\u6765\u8bad\u7ec3\u89d2\u5ea6\u5206\u652f\u3002\u6240\u4ee5\uff0c\u6211\u4eec\u7684\u635f\u5931\u51fd\u6570\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n
L_{CLM}=\\frac{\u03bb}{N}\\sum_{(x,y)}L_{ctr}(c,c^*_{gt})+\\frac{1}{N_{pos}}c^*_{gt}L_{dist}(t,t^*_{gt})+\\frac{1}{N_{pos}}c^*_{gt}L_{angle}(\u03b8,\u03b8_{gt})<\/code><\/pre>\n
\u5176\u4e2d\uff0c L_{ctr}<\/code>\u662f\u7126\u70b9\u635f\u5931\u50cf[26]\u7684\u90a3\u6837,L_{dist}<\/code>\u548c L_{angle}<\/code> \u662f\u50cf[5]\u5e73\u6ed1\u7684L1\u635f\u5931.N\u662f\u5728\u7279\u5f81\u56fe\u4e0a\u6240\u6709\u70b9\u7684\u6570\u91cf\uff0cN_{pos}<\/code>\u662f\u6b63\u6837\u672c\u7684\u4e2a\u6570\uff0cc^*<\/code>\u8868\u793a\u901a\u8fc7\u533a\u57df\u5206\u914d\u65b9\u6848\u83b7\u5f97\u7684\u70b9\u6807\u7b7e\uff0c\u5f53\u4e00\u4e2a\u70b9\u4e3a\u6b63\u6837\u672c\u65f6\uff0cc^*<\/code>\u4e3a1\uff0c\u5426\u5219\u4e3a0\u3002<\/p>\n
\u901a\u8fc7\u7ed3\u5408\u8ddd\u79bb\u548c\u89d2\u5ea6\uff0cCLM \u53ef\u4ee5\u5728\u6bcf\u4e2a\u4f4d\u7f6e\u751f\u6210\u4e00\u4e2a\u5b9a\u5411\u6846\u3002\u5728\u7b2c IV.C \u8282\u4e2d\uff0c\u6211\u4eec\u5c06\u7c97\u7565\u7684\u5b9a\u5411\u6846\u4e0e RPN \u751f\u6210\u7684\u6c34\u5e73\u63d0\u8bae\u8fdb\u884c\u6bd4\u8f83\uff0c\u7ed3\u679c\u663e\u793a\u7c97\u7565\u7684\u5b9a\u5411\u6846\u6bd4\u624b\u52a8\u521b\u5efa\u7684 \u65cb\u8f6c\u6846 \u8981\u597d\u5f97\u591a\u3002<\/p>\n
C. \u65cb\u8f6c\u6846\u8c03\u4f18<\/h4>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4f7f\u7528\u4e00\u4e2a\u5c0f\u578b\u7684\u5168\u5377\u79ef\u7f51\u7edc\u6765\u8bc6\u522b\u524d\u666f\u5e76\u7cbe\u786e\u5730\u8c03\u6574\u7c97\u7565\u7684\u5b9a\u5411\u6846\u3002\u7136\u800c\uff0c\u951a\u70b9\u6846\u5728\u6574\u4e2a\u7279\u5f81\u56fe\u4e0a\u662f\u5747\u5300\u5206\u5e03\u7684\uff0c\u5e76\u4e14\u5728\u6bcf\u4e2a\u4f4d\u7f6e\u4e0a\u6709\u76f8\u540c\u7684\u5f62\u72b6\u548c\u5c3a\u5ea6\u3002\u800c\u6211\u4eec\u7684\u7c97\u7565\u5b9a\u5411\u6846\u5728\u4e0d\u540c\u4f4d\u7f6e\u4e0a\u662f\u53d8\u5316\u7684\uff0c\u8fd9\u5728\u4e00\u81f4\u7684\u7279\u5f81\u56fe\u4e2d\u53ef\u80fd\u5b58\u5728\u5bf9\u9f50\u4e0d\u826f\u7684\u95ee\u9898\uff08\u8fd9\u91cc\u6211\u7684\u7406\u89e3\u662f\u6240\u6709\u7684\u5019\u9009\u6846\u5728\u6bcf\u4e2a\u4f4d\u7f6e\u7684\u7279\u5f81\u56fe\u662f\u76f8\u540c\u7684\uff0c\u4f46\u662f\u7c97\u7565\u5b9a\u5411\u6846\u5728\u540c\u4e00\u4e2a\u4f4d\u7f6e\u53ef\u80fd\u6709\u65cb\u8f6c\u7b49\u60c5\u51b5\uff0c\u6240\u4ee5\u53ef\u80fd\u5b58\u5728\u5bf9\u9f50\u4e0d\u826f\u7684\u60c5\u51b5\uff09\u3002\u5728\u672c\u5de5\u4f5c\u4e2d\uff0c\u6211\u4eec\u5e94\u7528\u4e86\u4e00\u79cd\u79f0\u4e3a AlignConv \u7684\u7279\u5f81\u5bf9\u9f50\u6280\u672f\u6765\u5c06\u7279\u5f81\u4e0e\u7c97\u7565\u7684\u5b9a\u5411\u6846\u5bf9\u9f50\u3002\u7ecf\u8fc7\u5bf9\u9f50\u540e\uff0c\u6211\u4eec\u751f\u6210\u9ad8\u8d28\u91cf\u7684\u5b9a\u5411\u63d0\u8bae\uff0c\u4ee5\u8fdb\u884c\u7cbe\u786e\u7684\u5206\u7c7b\u548c\u4f4d\u7f6e\u5b9a\u4f4d\u3002<\/p>\n
\uff08ChatGBT\uff1a\u8fd9\u4e2a\u53e5\u5b50\u7684\u610f\u601d\u662f\uff0c\u951a\u70b9\u6846\u5728\u6574\u4e2a\u7279\u5f81\u56fe\u4e0a\u662f\u56fa\u5b9a\u7684\uff0c\u5373\u5b83\u4eec\u7684\u5f62\u72b6\u548c\u5c3a\u5ea6\u5728\u4e0d\u540c\u7684\u4f4d\u7f6e\u4e0a\u90fd\u662f\u76f8\u540c\u7684\uff0c\u800c\u7c97\u7565\u7684\u5b9a\u5411\u6846\u5728\u4e0d\u540c\u7684\u4f4d\u7f6e\u4e0a\u5177\u6709\u4e0d\u540c\u7684\u5f62\u72b6\u548c\u5c3a\u5ea6\u3002\u8fd9\u5c31\u5bfc\u81f4\u4e86\u4e00\u4e2a\u95ee\u9898\uff1a\u951a\u70b9\u6846\u548c\u7c97\u7565\u7684\u5b9a\u5411\u6846\u4e4b\u95f4\u53ef\u80fd\u5b58\u5728\u5bf9\u9f50\u4e0d\u826f\u7684\u95ee\u9898\uff0c\u56e0\u4e3a\u951a\u70b9\u6846\u662f\u56fa\u5b9a\u7684\uff0c\u4e0d\u80fd\u5f88\u597d\u5730\u9002\u5e94\u4e0d\u540c\u4f4d\u7f6e\u4e0a\u7684\u76ee\u6807\uff0c\u800c\u7c97\u7565\u7684\u5b9a\u5411\u6846\u5219\u66f4\u597d\u5730\u8d34\u5408\u76ee\u6807\u7684\u5b9e\u9645\u5f62\u72b6\u3002\u8fd9\u79cd\u4e0d\u826f\u7684\u5bf9\u9f50\u95ee\u9898\u4f1a\u5bfc\u81f4\u540e\u7eed\u5904\u7406\u4e2d\u7684\u8bef\u5dee\u548c\u964d\u4f4e\u68c0\u6d4b\u7684\u51c6\u786e\u6027\u3002\u56e0\u6b64\uff0c\u5728\u8fd9\u4e2a\u5de5\u4f5c\u4e2d\uff0c\u4f5c\u8005\u63d0\u51fa\u4e86\u4e00\u79cd\u7279\u5f81\u5bf9\u9f50\u6280\u672f "AlignConv" \u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\uff09<\/p>\n
\u7528AlignConv\u6765\u5bf9\u9f50\u7279\u5f81\u56fe<\/h5>\n
\"\"<\/p>\n
\u5c31\u50cf\u56fe5\u6240\u793a\u7684AlignConv\u7ed3\u6784\uff0cAlignConv\u7684\u4e3b\u8981\u90e8\u5206\u662f\u4e00\u4e2a\u53ef\u53d8\u5f62\u5377\u79ef\u5c42\uff0c\u5b83\u901a\u8fc7\u504f\u79fb\u573a\u5bf9\u8f93\u5165\u7279\u5f81\u8fdb\u884c\u5bf9\u9f50\u3002\u4e0e\u4ece\u5c0f\u578b\u7f51\u7edc<\/strong>\u751f\u6210\u504f\u79fb\u573a\u7684\u666e\u901a\u53ef\u53d8\u5f62\u5377\u79ef\u4e0d\u540c\uff0cAlignConv\u4ece\u5b9a\u5411\u6846<\/strong>\u4e2d\u63a8\u5bfc\u51fa\u504f\u79fb\u573a\u3002\u5177\u4f53\u5730\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u4f4d\u7f6e\u5411\u91cfp\u2208 { 0, 1, ..., H \u2212 1 } \u00d7 { 0, 1, ..., W \u2212 1 } ,\u4e00\u4e2a\u6807\u51c6\u76843\u00d73\u53ef\u53d8\u5f62\u5377\u79ef\u53ef\u4ee5\u8868\u793a\u4e3a <\/p>\n
Y(p)=\\sum_{r\u2208R}W(r)\u00b7X(p+r+o)<\/code><\/pre>\n
\u5176\u4e2d\uff0cX\u3001Y\u662f\u8f93\u5165\u548c\u8f93\u51fa\u7279\u5f81\u56fe\uff0cW\u662f\u53ef\u53d8\u5f62\u5377\u79ef\u7684\u6743\u91cd\uff0cr\u662f\u81ea\u5df1\u89c4\u5219\u7f51\u683c\u7684\u5143\u7d20\u5411\u91cf\uff08\u8fd9\u91cc\u662f\u6807\u51c6\u5377\u79ef\u516c\u5f0f\u91cc\u7684\uff09<\/p>\n
R = { (\u22121, \u22121), (\u22121, 0), ..., (1, 1) }<\/code><\/pre>\n
\uff08\u8fd9\u91cc\u6211\u7684\u7406\u89e3\u662f\u4e2d\u5fc3\u7f51\u683c\u662f0\uff0c0\uff0c\u7136\u540e\u7b2c\u4e00\u4e2a\u683c\u5b50\u662f-1\uff0c-1\uff0cW\u662f\u6743\u91cd\uff0c\u662f\u4e00\u4e2a\u77e9\u9635\uff0c\u7136\u540e\u5728-1\uff0c-1\u7684\u6743\u91cd\u503c\u4e58\u4e0aX\u662f\u8f93\u5165\u7684\u56fe\u50cf\u7684\uff08-1\uff0c-1\uff09\u8fd9\u4e2a\u5730\u65b9\uff0c\u8fd9\u91cc\u7528\u7684\u662f3x3\u7684\u5377\u79ef\uff1b\u800c\u53ef\u53d8\u5f62\u5377\u79ef\u5c31\u662f\u5728\u8fd9\u4e2a\u57fa\u7840\u4e0a\u52a0\u4e0a\u6211\u4eec\u5b66\u5230\u7684\u504f\u79fb\u91cfo\uff0c\u6bd4\u5982\u5728<\/p>\n
o\u662f\u4f4d\u7f6e\u504f\u79fb\u91cf\uff08\u8fd9\u91cc\u662f\u7528\u53ef\u53d8\u5f62\u5377\u79ef\u6765\u5b9e\u73b0\u7684\uff0c\u4e3b\u8981\u662f\u591a\u4e86\u4e24\u4e2a\u5377\u79ef\u6838\uff0c\u4e5f\u5c31\u662f2\u5c42\u5377\u79ef\u5206\u522b\u4ee3\u8868x\u3001y\u504f\u79fb\u91cf\u7684\u503c\uff0c\u8fd9\u4e2a\u503c\u662f\u901a\u8fc7\u5b66\u4e60\u5f97\u6765\u7684\uff09<\/p>\n
\u6ce8\uff1a\u53ef\u53d8\u5f62\u5377\u79ef\u56fe\u793a<\/p>\n
\"img\"<\/p>\n
\u5728AlignConv\u4e2d\uff0c\u6211\u4eec\u9650\u5236\u91c7\u6837\u70b9\u5728\u7c97\u7565\u5b9a\u5411\u6846B=(x\uff0cy\uff0cw\uff0ch\uff0c\u03b8)\u5185\u670d\u4ece\u89c4\u5219\u5206\u5e03\uff08\u8868\u793a\u6837\u672c\u70b9\u5728\u7c97\u7565\u5b9a\u5411\u6846\u5185\u5747\u5300\u5206\u5e03\uff09\uff0c\u5982\u56fe5\u6240\u793a\u3002\u8fd9\u4e2a\u91c7\u6837\u70b9\u53ef\u4ee5\u7528\u5982\u4e0b\u516c\u5f0f\u63a8\u5bfc\u5f97\u51fa\uff1a<\/p>\n
r_{box}=\\frac{1}{s_i}((x,y)-p+(\\frac{w}{2},\\frac{h}{2})\u00b7r) R^T(\\theta)<\/code><\/pre>\n
\u5176\u4e2d\uff0cR(\u03b8)\u662f\u548c[4]\u4e00\u6837\u7684\u65cb\u8f6c\u77e9\u9635\uff0cSi\u662f\u7279\u5f81\u56fe\u7684\u6b65\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\u4f4d\u7f6ep\u5904\u7684\u504f\u79fb\u573aO\uff1a<\/p>\n
O=\\sum_{r\u2208R}(r_{box}-p-r)<\/code><\/pre>\n
\u9ad8\u8d28\u91cf\u7684\u6709\u65b9\u5411\u6027\u63d0\u8bae<\/h5>\n
\u7279\u5f81\u5bf9\u9f50\u540e\uff0c\u6211\u4eec\u5206\u522b\u5e94\u7528\u4e24\u4e2a1\u00d71\u5377\u79ef\u5c42\u751f\u6210\u5206\u7c7b\u548c\u56de\u5f52\u6620\u5c04\uff0c\u4ee5\u8bc6\u522b\u524d\u666f\u548c\u4f18\u5316\u6709\u65b9\u5411\u7684\u6846\u3002\u5bf9\u4e8e\u63d0\u8bae\u7684\u4f18\u5316\uff0c\u6211\u4eec\u9700\u8981\u5148\u8ba1\u7b97\u7c97\u7565\u6846\u4e0e\u6807\u6ce8\u6846\u7684IoU\u503c\u6765\u5206\u914d\u5b83\u4eec\u7684\u6807\u7b7e\u3002\u8fd9\u91cc\uff0c\u7c97\u7565\u6846\u662f\u901a\u8fc7CLM\u751f\u6210\u7684\u3002IoU\u5927\u4e8e0.7\u7684\u6846\u88ab\u89c6\u4e3a\u6b63\u6837\u672c\uff0c\u5c0f\u4e8e0.3\u7684\u6846\u88ab\u89c6\u4e3a\u8d1f\u6837\u672c\u3002\u5176\u4ed6\u6846\u5219\u88ab\u5ffd\u7565\u3002\u901a\u8fc7\u5b9a\u4e49\u6b63\u6837\u672c\u548c\u8d1f\u6837\u672c\uff0c\u53ef\u4ee5\u5c06\u7c97\u7565\u6846\u4f18\u5316\u5230\u51c6\u786e\u7684\u4f4d\u7f6e\uff0c\u751f\u6210\u9ad8\u8d28\u91cf\u7684\u6709\u65b9\u5411\u6027\u63d0\u8bae\u3002<\/p>\n
\u65cb\u8f6c\u76ee\u6807\u68c0\u6d4b<\/h5>\n
\"\"<\/p>\n
\u5c31\u50cf\u56fe6\u6240\u8868\u793a\u7684\u90a3\u6837\uff0c\u6211\u4eec\u91c7\u7eb3\u4fee\u6539\u8fc7\u7684Fast R-CNN \u5934\u5728\u7b2c\u4e8c\u4e2a\u9636\u6bb5\u6765\u9884\u6d4b\u5206\u7c7b\u7684\u5206\u6570\u548c\u56de\u5f52\u6700\u540e\u7684\u9009\u62e9\u6846\u3002\u4e0d\u540c\u4e8e\u539f\u6765\u7684Fast R-CNN\u6295\uff0c\u6211\u4eec\u5728\u56de\u5f52\u5206\u652f\u52a0\u5165\u4e86\u4e00\u4e2a\u89d2\u5ea6\u7684\u53c2\u6570\u6765\u9884\u6d4b\u89d2\u5ea6\u3002\u8be6\u7ec6\u7684AOPG\u53ef\u4ee5\u5728\u6211\u4eec\u53d1\u5e03\u7684\u4ee3\u7801\u91cc\u9762\u627e\u5230\u3002<\/p>\n
\u6211\u89c9\u5f97\u53ef\u4ee5\u6539\u8fdb\u7684\u5730\u65b9<\/h1>\n
    \n
  1. \u66f4\u597d\u7684\u7279\u5f81\u63d0\u53d6\u5668\uff1a\u8be5\u8bba\u6587\u7684\u65b9\u6cd5\u4f7f\u7528\u7684\u662f ResNet50-FPN \u4f5c\u4e3a\u7279\u5f81\u63d0\u53d6\u5668\u3002\u4f46\u662f\u8fd1\u671f\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u7684\u66f4\u5148\u8fdb\u7684\u7f51\u7edc\u7ed3\u6784\u548c\u7279\u5f81\u63d0\u53d6\u5668\uff0c\u6bd4\u5982 Swin Transformer \u548c ViT \u7b49\u3002\u56e0\u6b64\uff0c\u5c1d\u8bd5\u4f7f\u7528\u8fd9\u4e9b\u65b0\u7684\u7279\u5f81\u63d0\u53d6\u5668\uff0c\u53ef\u80fd\u4f1a\u6709\u66f4\u597d\u7684\u7ed3\u679c\u3002<\/li>\n
  2. \u66f4\u597d\u7684\u56de\u5f52\u5668\uff1a\u8be5\u8bba\u6587\u4e2d\u4f7f\u7528\u7684\u56de\u5f52\u5668\u662f\u6807\u51c6\u7684\u4e8c\u7ef4\u56de\u5f52\u5668\u3002\u4f46\u662f\uff0c\u4e00\u4e9b\u65b0\u7684\u56de\u5f52\u5668\uff0c\u6bd4\u5982 CenterNet \u548c RepPoints\uff0c\u5df2\u7ecf\u5728\u76ee\u6807\u68c0\u6d4b\u4e2d\u53d6\u5f97\u4e86\u5f88\u597d\u7684\u8868\u73b0\u3002\u56e0\u6b64\uff0c\u5c06\u8fd9\u4e9b\u65b0\u7684\u56de\u5f52\u5668\u96c6\u6210\u5230\u8be5\u65b9\u6cd5\u4e2d\u53ef\u80fd\u4f1a\u5e26\u6765\u66f4\u597d\u7684\u7ed3\u679c\u3002<\/li>\n
  3. \u591a\u4efb\u52a1\u5b66\u4e60\uff1a\u8be5\u8bba\u6587\u4e2d\u7684\u5206\u7c7b\u548c\u56de\u5f52\u4efb\u52a1\u662f\u72ec\u7acb\u8fdb\u884c\u7684\uff0c\u4f46\u662f\u591a\u4efb\u52a1\u5b66\u4e60\u5df2\u7ecf\u88ab\u8bc1\u660e\u53ef\u4ee5\u5e26\u6765\u66f4\u597d\u7684\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5c06\u8fd9\u4e24\u4e2a\u4efb\u52a1\u7ec4\u5408\u6210\u4e00\u4e2a\u591a\u4efb\u52a1\u5b66\u4e60\u6a21\u578b\uff0c\u53ef\u80fd\u4f1a\u6709\u66f4\u597d\u7684\u6548\u679c\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
    Anchor-free Oriented Proposal Generator for Object Dete… » \u9605\u8bfb\u5168\u6587<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-141","post","type-post","status-publish","format-standard","hentry","category-dl"],"_links":{"self":[{"href":"https:\/\/apifj.com\/index.php\/wp-json\/wp\/v2\/posts\/141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apifj.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apifj.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apifj.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/apifj.com\/index.php\/wp-json\/wp\/v2\/comments?post=141"}],"version-history":[{"count":20,"href":"https:\/\/apifj.com\/index.php\/wp-json\/wp\/v2\/posts\/141\/revisions"}],"predecessor-version":[{"id":165,"href":"https:\/\/apifj.com\/index.php\/wp-json\/wp\/v2\/posts\/141\/revisions\/165"}],"wp:attachment":[{"href":"https:\/\/apifj.com\/index.php\/wp-json\/wp\/v2\/media?parent=141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apifj.com\/index.php\/wp-json\/wp\/v2\/categories?post=141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apifj.com\/index.php\/wp-json\/wp\/v2\/tags?post=141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}