{"id":112253,"date":"2026-10-02T23:48:53","date_gmt":"2026-10-02T15:48:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/112253.html"},"modified":"2026-10-02T23:48:53","modified_gmt":"2026-10-02T15:48:53","slug":"%e3%80%90yolo-%e5%85%a5%e9%97%a8%e5%88%b0%e7%b2%be%e9%80%9a-07%e3%80%91%e9%aa%8c%e8%af%81%e4%b8%8e%e6%80%a7%e8%83%bd%e8%af%84%e4%bc%b0%ef%bc%9a%e8%af%bb%e6%87%82-map%e3%80%81precision%e3%80%81recall","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/112253.html","title":{"rendered":"\u3010YOLO \u5165\u95e8\u5230\u7cbe\u901a 07\u3011\u9a8c\u8bc1\u4e0e\u6027\u80fd\u8bc4\u4f30\uff1a\u8bfb\u61c2 mAP\u3001Precision\u3001Recall"},"content":{"rendered":"<h2>\u3010YOLO \u5165\u95e8\u5230\u7cbe\u901a 07\u3011\u9a8c\u8bc1\u4e0e\u6027\u80fd\u8bc4\u4f30&#xff1a;\u8bfb\u61c2 mAP\u3001Precision\u3001Recall<\/h2>\n<p>\u6807\u7b7e&#xff1a;mAP \u6a21\u578b\u8bc4\u4f30 \u6df7\u6dc6\u77e9\u9635 Precision Recall \u8fc7\u62df\u5408 \u96be\u5ea6&#xff1a;\u2b50\u2b50\u2b50 | \u9605\u8bfb\u65f6\u957f&#xff1a;\u7ea6 55 \u5206\u949f | \u7cfb\u5217&#xff1a;\u7b2c 07\/12 \u96c6 \u524d\u7f6e&#xff1a;06 \u8bad\u7ec3 | \u4e0b\u4e00\u96c6&#xff1a;08 \u63a8\u7406\u6307\u5357<\/p>\n<hr \/>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261002154852-6abfd26452c29.jpg\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u5199\u5728\u524d\u9762<\/h3>\n<p>\u8bad\u7ec3\u5b8c\u4e0d\u7b49\u4e8e\u80fd\u7528\u3002\u4e00\u4e2a mAP 0.3 \u7684\u6a21\u578b\u4e0a\u7ebf\u540e\u53ef\u80fd\u8bef\u62a5\u6ee1\u5929\u98de\u3002\u9a8c\u8bc1\u5c31\u662f\u7ed9\u6a21\u578b\u300c\u4f53\u68c0\u300d\u2014\u2014\u7528\u6570\u636e\u8bf4\u8bdd&#xff0c;\u51b3\u5b9a\u80fd\u4e0d\u80fd\u90e8\u7f72\u3002<\/p>\n<p>\u672c\u96c6\u6559\u4f60\u8bfb\u61c2\u6bcf\u4e00\u4e2a\u6307\u6807&#xff0c;\u5e76\u5b66\u4f1a\u4ece\u6df7\u6dc6\u77e9\u9635\u5b9a\u4f4d\u95ee\u9898\u7c7b\u522b\u3002<\/p>\n<hr \/>\n<h3>\u672c\u96c6\u5b66\u4e60\u76ee\u6807<\/h3>\n<ul>\n<li class=\"task-list-item\"> \u7406\u89e3 IoU\u3001Precision\u3001Recall\u3001mAP<\/li>\n<li class=\"task-list-item\"> \u4f7f\u7528 val \u6a21\u5f0f\u8bc4\u4f30\u6a21\u578b<\/li>\n<li class=\"task-list-item\"> \u5206\u6790\u6df7\u6dc6\u77e9\u9635\u548c PR \u66f2\u7ebf<\/li>\n<li class=\"task-list-item\"> \u5224\u65ad\u8fc7\u62df\u5408\u5e76\u9009\u62e9\u6700\u4f73 conf \u9608\u503c<\/li>\n<\/ul>\n<hr \/>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u3010YOLO \u5165\u95e8\u5230\u7cbe\u901a 07\u3011\u9a8c\u8bc1\u4e0e\u6027\u80fd\u8bc4\u4f30&#xff1a;\u8bfb\u61c2 mAP\u3001Precision\u3001Recall<\/li>\n<li>\n<ul>\n<li>\u5199\u5728\u524d\u9762<\/li>\n<li>\u672c\u96c6\u5b66\u4e60\u76ee\u6807<\/li>\n<li>7.1 \u4e3a\u4ec0\u4e48\u9700\u8981\u9a8c\u8bc1<\/li>\n<li>\n<ul>\n<li>\u8fc7\u62df\u5408\u8bc6\u522b<\/li>\n<\/ul>\n<\/li>\n<li>7.2 \u6838\u5fc3\u6307\u6807\u8be6\u89e3<\/li>\n<li>\n<ul>\n<li>IoU&#xff08;\u4ea4\u5e76\u6bd4&#xff09;<\/li>\n<li>Precision &amp; Recall<\/li>\n<li>\u6df7\u6dc6\u77e9\u9635<\/li>\n<\/ul>\n<\/li>\n<li>7.3 mAP \u8be6\u89e3<\/li>\n<li>7.4 \u6267\u884c\u9a8c\u8bc1<\/li>\n<li>\n<ul>\n<li>\u8f93\u51fa\u89e3\u8bfb<\/li>\n<\/ul>\n<\/li>\n<li>7.5 \u53ef\u89c6\u5316\u5206\u6790<\/li>\n<li>\n<ul>\n<li>\u9009\u6700\u4f73 conf<\/li>\n<\/ul>\n<\/li>\n<li>7.6 \u6a21\u578b\u5bf9\u6bd4<\/li>\n<li>7.7 \u9519\u8bef\u5206\u6790<\/li>\n<li>\n<ul>\n<li>\u9010\u7c7b AP \u5206\u6790<\/li>\n<\/ul>\n<\/li>\n<li>7.8 \u8e29\u5751\u6307\u5357<\/li>\n<li>7.9 \u5e38\u89c1\u95ee\u9898 FAQ<\/li>\n<li>7.10 \u672c\u96c6\u5c0f\u7ed3<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>7.1 \u4e3a\u4ec0\u4e48\u9700\u8981\u9a8c\u8bc1<\/h3>\n<table>\n<tr>\u9636\u6bb5\u6570\u636e\u76ee\u7684<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">Train<\/td>\n<td align=\"left\">\u8bad\u7ec3\u96c6<\/td>\n<td align=\"left\">\u5b66\u4e60<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Val<\/td>\n<td align=\"left\">\u9a8c\u8bc1\u96c6<\/td>\n<td align=\"left\">\u8c03\u53c2\u3001\u9009 best.pt<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Test<\/td>\n<td align=\"left\">\u6d4b\u8bd5\u96c6<\/td>\n<td align=\"left\">\u6700\u7ec8\u62a5\u544a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u8fc7\u62df\u5408\u8bc6\u522b<\/h4>\n<p>Loss<br \/>\n \u2502  \u8bad\u7ec3\u635f\u5931 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500<br \/>\n \u2502                    \u2572<br \/>\n \u2502  \u9a8c\u8bc1\u635f\u5931    \u2572____\u2571  \u2190 \u8fc7\u62df\u5408&#xff1a;\u9a8c\u8bc1\u635f\u5931\u56de\u5347<br \/>\n \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2192 Epoch<\/p>\n<hr \/>\n<h3>7.2 \u6838\u5fc3\u6307\u6807\u8be6\u89e3<\/h3>\n<h4>IoU&#xff08;\u4ea4\u5e76\u6bd4&#xff09;<\/h4>\n<p>IoU &#061; \u4ea4\u96c6\u9762\u79ef \/ \u5e76\u96c6\u9762\u79ef<\/p>\n<p>IoU&#061;1.0 \u5b8c\u5168\u91cd\u5408 | IoU&#061;0.5 \u4e00\u534a\u91cd\u53e0&#xff08;\u5e38\u7528\u9608\u503c&#xff09;| IoU&#061;0 \u4e0d\u91cd\u53e0<\/p>\n<p><span class=\"token keyword\">def<\/span> <span class=\"token function\">iou<\/span><span class=\"token punctuation\">(<\/span>box1<span class=\"token punctuation\">,<\/span> box2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># [x1,y1,x2,y2]<\/span><br \/>\n    x1<span class=\"token punctuation\">,<\/span>y1 <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">max<\/span><span class=\"token punctuation\">(<\/span>box1<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>box2<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">max<\/span><span class=\"token punctuation\">(<\/span>box1<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>box2<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    x2<span class=\"token punctuation\">,<\/span>y2 <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">min<\/span><span class=\"token punctuation\">(<\/span>box1<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>box2<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">min<\/span><span class=\"token punctuation\">(<\/span>box1<span class=\"token punctuation\">[<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>box2<span class=\"token punctuation\">[<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    inter <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">max<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>x2<span class=\"token operator\">&#8211;<\/span>x1<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> <span class=\"token builtin\">max<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span>y2<span class=\"token operator\">&#8211;<\/span>y1<span class=\"token punctuation\">)<\/span><br \/>\n    a1 <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>box1<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#8211;<\/span>box1<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">(<\/span>box1<span class=\"token punctuation\">[<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#8211;<\/span>box1<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    a2 <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>box2<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#8211;<\/span>box2<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">(<\/span>box2<span class=\"token punctuation\">[<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#8211;<\/span>box2<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> inter <span class=\"token operator\">\/<\/span> <span class=\"token punctuation\">(<\/span>a1 <span class=\"token operator\">&#043;<\/span> a2 <span class=\"token operator\">&#8211;<\/span> inter <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1e-6<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h4>Precision &amp; Recall<\/h4>\n<table>\n<tr>\u6307\u6807\u516c\u5f0f\u542b\u4e49\u4f4e\u65f6\u600e\u4e48\u529e<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">Precision<\/td>\n<td align=\"left\">TP\/(TP&#043;FP)<\/td>\n<td align=\"left\">\u9884\u6d4b\u5bf9\u7684\u5360\u591a\u5c11<\/td>\n<td align=\"left\">\u63d0\u9ad8 conf<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Recall<\/td>\n<td align=\"left\">TP\/(TP&#043;FN)<\/td>\n<td align=\"left\">\u627e\u5230\u4e86\u591a\u5c11\u771f\u76ee\u6807<\/td>\n<td align=\"left\">\u964d\u4f4e conf<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">F1<\/td>\n<td align=\"left\">2PR\/(P&#043;R)<\/td>\n<td align=\"left\">\u7efc\u5408\u5e73\u8861<\/td>\n<td align=\"left\">\u627e\u6700\u4f73 conf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u6df7\u6dc6\u77e9\u9635<\/h4>\n<table>\n<tr>\u9884\u6d4b\u6b63\u9884\u6d4b\u8d1f<\/tr>\n<tbody>\n<tr>\n<td align=\"center\">\u5b9e\u9645\u6b63<\/td>\n<td align=\"center\">TP<\/td>\n<td align=\"center\">FN&#xff08;\u6f0f\u68c0&#xff09;<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">\u5b9e\u9645\u8d1f<\/td>\n<td align=\"center\">FP&#xff08;\u8bef\u68c0&#xff09;<\/td>\n<td align=\"center\">TN<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>7.3 mAP \u8be6\u89e3<\/h3>\n<table>\n<tr>\u6307\u6807\u542b\u4e49\u573a\u666f<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">mAP&#064;0.5<\/td>\n<td align=\"left\">IoU\u22650.5 \u5373\u7b97\u5bf9<\/td>\n<td align=\"left\">\u5bbd\u677e<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">mAP&#064;0.5:0.95<\/td>\n<td align=\"left\">IoU 0.5~0.95 \u6b65\u957f0.05 \u5e73\u5747<\/td>\n<td align=\"left\">COCO \u6807\u51c6<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">mAP&#064;0.75<\/td>\n<td align=\"left\">IoU\u22650.75<\/td>\n<td align=\"left\">\u4e25\u683c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tr>mAP50-95\u8bc4\u4ef7<\/tr>\n<tbody>\n<tr>\n<td align=\"center\">&lt;0.3<\/td>\n<td align=\"left\">\u8f83\u5dee<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">0.3~0.5<\/td>\n<td align=\"left\">\u4e00\u822c<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">0.5~0.7<\/td>\n<td align=\"left\">\u826f\u597d<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">0.7~0.9<\/td>\n<td align=\"left\">\u4f18\u79c0<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">&gt;0.9<\/td>\n<td align=\"left\">\u975e\u5e38\u4f18\u79c0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>7.4 \u6267\u884c\u9a8c\u8bc1<\/h3>\n<p>yolo detect val <span class=\"token assign-left variable\">model<\/span><span class=\"token operator\">&#061;<\/span>runs\/detect\/train\/weights\/best.pt <span class=\"token assign-left variable\">data<\/span><span class=\"token operator\">&#061;<\/span>my_dataset.yaml<\/p>\n<p><span class=\"token keyword\">from<\/span> ultralytics <span class=\"token keyword\">import<\/span> YOLO<\/p>\n<p>model <span class=\"token operator\">&#061;<\/span> YOLO<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;runs\/detect\/train\/weights\/best.pt&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nmetrics <span class=\"token operator\">&#061;<\/span> model<span class=\"token punctuation\">.<\/span>val<span class=\"token punctuation\">(<\/span>data<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;my_dataset.yaml&#034;<\/span><span class=\"token punctuation\">,<\/span> imgsz<span class=\"token operator\">&#061;<\/span><span class=\"token number\">640<\/span><span class=\"token punctuation\">,<\/span> conf<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0.001<\/span><span class=\"token punctuation\">,<\/span> plots<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;mAP50:     <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>metrics<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span>map50<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.4f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;mAP50-95:  <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>metrics<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">map<\/span><span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.4f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;Precision: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>metrics<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span>mp<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.4f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;Recall:    <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>metrics<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span>mr<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.4f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h4>\u8f93\u51fa\u89e3\u8bfb<\/h4>\n<p>Class     Images  Instances  Box(P    R    mAP50  mAP50-95)<br \/>\nall          50        150   0.85  0.78   0.82    0.65<br \/>\ncat          50         80   0.90  0.85   0.88    0.72<br \/>\ndog          50         70   0.80  0.71   0.76    0.58<\/p>\n<hr \/>\n<h3>7.5 \u53ef\u89c6\u5316\u5206\u6790<\/h3>\n<p>\u8bad\u7ec3\u540e\u5728 runs\/detect\/val\/ \u67e5\u770b&#xff1a;<\/p>\n<table>\n<tr>\u6587\u4ef6\u5185\u5bb9<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">confusion_matrix.png<\/td>\n<td align=\"left\">\u7c7b\u522b\u6df7\u6dc6<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">PR_curve.png<\/td>\n<td align=\"left\">\u7cbe\u786e\u7387-\u53ec\u56de\u7387<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">F1_curve.png<\/td>\n<td align=\"left\">\u6700\u4f73 conf \u53c2\u8003<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">val_batch0_pred.jpg<\/td>\n<td align=\"left\">\u9884\u6d4b vs \u771f\u5b9e\u5bf9\u6bd4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u9009\u6700\u4f73 conf<\/h4>\n<p><span class=\"token keyword\">for<\/span> conf <span class=\"token keyword\">in<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">0.1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0.25<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0.5<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0.7<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    m <span class=\"token operator\">&#061;<\/span> model<span class=\"token punctuation\">.<\/span>val<span class=\"token punctuation\">(<\/span>data<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;data.yaml&#034;<\/span><span class=\"token punctuation\">,<\/span> conf<span class=\"token operator\">&#061;<\/span>conf<span class=\"token punctuation\">,<\/span> verbose<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">False<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    p<span class=\"token punctuation\">,<\/span> r <span class=\"token operator\">&#061;<\/span> m<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span>mp<span class=\"token punctuation\">,<\/span> m<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span>mr<br \/>\n    f1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token operator\">*<\/span>p<span class=\"token operator\">*<\/span>r<span class=\"token operator\">\/<\/span><span class=\"token punctuation\">(<\/span>p<span class=\"token operator\">&#043;<\/span>r<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1e-6<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;conf&#061;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>conf<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">: P&#061;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>p<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.3f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> R&#061;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>r<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.3f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> F1&#061;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>f1<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.3f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<hr \/>\n<h3>7.6 \u6a21\u578b\u5bf9\u6bd4<\/h3>\n<p>models <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;n&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;runs\/n\/weights\/best.pt&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;s&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;runs\/s\/weights\/best.pt&#034;<\/span><span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">for<\/span> name<span class=\"token punctuation\">,<\/span> path <span class=\"token keyword\">in<\/span> models<span class=\"token punctuation\">.<\/span>items<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    m <span class=\"token operator\">&#061;<\/span> YOLO<span class=\"token punctuation\">(<\/span>path<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>val<span class=\"token punctuation\">(<\/span>data<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;data.yaml&#034;<\/span><span class=\"token punctuation\">,<\/span> verbose<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">False<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;yolo26<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">: mAP&#061;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>m<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">map<\/span><span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.4f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, P&#061;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>m<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span>mp<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.4f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, R&#061;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>m<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span>mr<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.4f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<table>\n<tr>\u6a21\u578bmAP\u901f\u5ea6\u573a\u666f<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">n<\/td>\n<td align=\"center\">\u8f83\u4f4e<\/td>\n<td align=\"center\">\u6700\u5feb<\/td>\n<td align=\"left\">\u5b9e\u65f6<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">m<\/td>\n<td align=\"center\">\u4e2d\u7b49<\/td>\n<td align=\"center\">\u4e2d\u7b49<\/td>\n<td align=\"left\">\u901a\u7528<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">x<\/td>\n<td align=\"center\">\u6700\u9ad8<\/td>\n<td align=\"center\">\u6700\u6162<\/td>\n<td align=\"left\">\u79bb\u7ebf\u9ad8\u7cbe\u5ea6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>7.7 \u9519\u8bef\u5206\u6790<\/h3>\n<table>\n<tr>\u9519\u8bef\u8868\u73b0\u6392\u67e5<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">\u5b9a\u4f4d\u5dee<\/td>\n<td align=\"left\">\u6846\u504f\u79fb<\/td>\n<td align=\"left\">\u770b box_loss<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u5206\u7c7b\u9519<\/td>\n<td align=\"left\">\u5f20\u51a0\u674e\u6234<\/td>\n<td align=\"left\">\u770b\u6df7\u6dc6\u77e9\u9635<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u6f0f\u68c0<\/td>\n<td align=\"left\">Recall \u4f4e<\/td>\n<td align=\"left\">\u964d conf \/ \u589e\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u8bef\u68c0<\/td>\n<td align=\"left\">Precision \u4f4e<\/td>\n<td align=\"left\">\u5347 conf<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u91cd\u590d\u6846<\/td>\n<td align=\"left\">\u540c\u76ee\u6807\u591a\u4e2a\u6846<\/td>\n<td align=\"left\">\u8c03 iou<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u9010\u7c7b AP \u5206\u6790<\/h4>\n<p>metrics <span class=\"token operator\">&#061;<\/span> model<span class=\"token punctuation\">.<\/span>val<span class=\"token punctuation\">(<\/span>data<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;data.yaml&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">for<\/span> i<span class=\"token punctuation\">,<\/span> ap <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">enumerate<\/span><span class=\"token punctuation\">(<\/span>metrics<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span>ap50<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>model<span class=\"token punctuation\">.<\/span>names<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">: AP50&#061;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>ap<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.4f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u627e\u6700\u5dee\u7c7b\u522b \u2192 \u9488\u5bf9\u6027\u589e\u6570\u636e<\/span><br \/>\nworst <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">sorted<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">zip<\/span><span class=\"token punctuation\">(<\/span>model<span class=\"token punctuation\">.<\/span>names<span class=\"token punctuation\">.<\/span>values<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> metrics<span class=\"token punctuation\">.<\/span>box<span class=\"token punctuation\">.<\/span>ap50<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> key<span class=\"token operator\">&#061;<\/span><span class=\"token keyword\">lambda<\/span> x<span class=\"token punctuation\">:<\/span> x<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u9700\u6539\u8fdb:&#034;<\/span><span class=\"token punctuation\">,<\/span> worst<span class=\"token punctuation\">)<\/span><\/p>\n<hr \/>\n<h3>7.8 \u8e29\u5751\u6307\u5357<\/h3>\n<table>\n<tr>\u5751\u89e3\u51b3<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">\u53ea\u770b mAP50<\/td>\n<td align=\"left\">\u751f\u4ea7\u770b mAP50-95<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">val \u7528\u8bad\u7ec3\u96c6<\/td>\n<td align=\"left\">\u5fc5\u987b\u72ec\u7acb val \u96c6<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">conf&#061;0.25 \u9a8c\u8bc1<\/td>\n<td align=\"left\">\u9a8c\u8bc1\u7528 conf&#061;0.001 \u5f97\u5b8c\u6574 PR \u66f2\u7ebf<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u6307\u6807\u597d\u4f46\u5b9e\u6218\u5dee<\/td>\n<td align=\"left\">\u68c0\u67e5 val \u5206\u5e03\u662f\u5426\u4ee3\u8868\u771f\u5b9e\u573a\u666f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>7.9 \u5e38\u89c1\u95ee\u9898 FAQ<\/h3>\n<p>Q1&#xff1a;mAP \u591a\u5c11\u80fd\u4e0a\u7ebf&#xff1f; A&#xff1a;\u89c6\u4e1a\u52a1\u800c\u5b9a\u3002\u5b89\u9632\u8bef\u62a5\u4ee3\u4ef7\u9ad8\u2192\u91cd Precision&#xff1b;\u6f0f\u68c0\u4ee3\u4ef7\u9ad8\u2192\u91cd Recall\u3002\u4e00\u822c mAP50-95 &gt; 0.5 \u53ef\u5c1d\u8bd5\u90e8\u7f72\u3002<\/p>\n<p>Q2&#xff1a;\u8bad\u7ec3\u548c\u9a8c\u8bc1 mAP \u5dee\u5f88\u591a&#xff1f; A&#xff1a;\u8fc7\u62df\u5408\u3002\u589e\u6570\u636e\u3001\u65e9\u505c\u3001\u51cf epochs\u3002<\/p>\n<hr \/>\n<h3>7.10 \u672c\u96c6\u5c0f\u7ed3<\/h3>\n<table>\n<tr>\u6307\u6807\u5173\u6ce8\u70b9<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">IoU<\/td>\n<td align=\"left\">\u5b9a\u4f4d\u51c6\u4e0d\u51c6<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Precision<\/td>\n<td align=\"left\">\u8bef\u62a5\u591a\u4e0d\u591a<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Recall<\/td>\n<td align=\"left\">\u6f0f\u68c0\u591a\u4e0d\u591a<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">mAP50-95<\/td>\n<td align=\"left\">\u7efc\u5408\u6027\u80fd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<table>\n<tr>\u2190 \u7b2c06\u96c6\u7b2c08\u96c6&#xff1a;\u63a8\u7406\u6307\u5357 \u2192<\/tr>\n<\/table>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>\u3010YOLO \u5165\u95e8\u5230\u7cbe\u901a 07\u3011\u9a8c\u8bc1\u4e0e\u6027\u80fd\u8bc4\u4f30&#xff1a;\u8bfb\u61c2 mAP\u3001Precision\u3001Recall \u6807\u7b7e&#xff1a;mAP \u6a21\u578b\u8bc4\u4f30 \u6df7\u6dc6\u77e9\u9635 Precision Recall \u8fc7\u62df\u5408 \u96be\u5ea6&#xff1a;\u2b50\u2b50\u2b50 | \u9605\u8bfb\u65f6\u957f&#xff1a;\u7ea6 55 \u5206\u949f | \u7cfb\u5217&#xff1a;\u7b2c 07\/12 \u96c6 \u524d\u7f6e&#xff1a;06 \u8bad\u7ec3 | \u4e0b\u4e00\u96c6&#xff1a;08 \u63a8\u7406\u6307\u5357 \u5199\u5728\u524d\u9762<br \/>\n\u8bad\u7ec3\u5b8c\u4e0d\u7b49\u4e8e\u80fd\u7528\u3002\u4e00\u4e2a mAP 0.3 \u7684\u6a21\u578b\u4e0a\u7ebf\u540e\u53ef\u80fd\u8bef\u62a5\u6ee1\u5929\u98de\u3002\u9a8c\u8bc1\u5c31\u662f\u7ed9\u6a21<\/p>\n","protected":false},"author":2,"featured_media":112252,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1460,156,1666,50,523],"topic":[],"class_list":["post-112253","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-opencv","tag-yolo","tag-1666","tag-50","tag-523"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010YOLO \u5165\u95e8\u5230\u7cbe\u901a 07\u3011\u9a8c\u8bc1\u4e0e\u6027\u80fd\u8bc4\u4f30\uff1a\u8bfb\u61c2 mAP\u3001Precision\u3001Recall - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/112253.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010YOLO \u5165\u95e8\u5230\u7cbe\u901a 07\u3011\u9a8c\u8bc1\u4e0e\u6027\u80fd\u8bc4\u4f30\uff1a\u8bfb\u61c2 mAP\u3001Precision\u3001Recall - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u3010YOLO \u5165\u95e8\u5230\u7cbe\u901a 07\u3011\u9a8c\u8bc1\u4e0e\u6027\u80fd\u8bc4\u4f30&#xff1a;\u8bfb\u61c2 mAP\u3001Precision\u3001Recall \u6807\u7b7e&#xff1a;mAP \u6a21\u578b\u8bc4\u4f30 \u6df7\u6dc6\u77e9\u9635 Precision Recall \u8fc7\u62df\u5408 \u96be\u5ea6&#xff1a;\u2b50\u2b50\u2b50 | \u9605\u8bfb\u65f6\u957f&#xff1a;\u7ea6 55 \u5206\u949f | \u7cfb\u5217&#xff1a;\u7b2c 07\/12 \u96c6 \u524d\u7f6e&#xff1a;06 \u8bad\u7ec3 | \u4e0b\u4e00\u96c6&#xff1a;08 \u63a8\u7406\u6307\u5357 \u5199\u5728\u524d\u9762 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