{"id":97489,"date":"2026-08-29T15:49:29","date_gmt":"2026-08-29T07:49:29","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/97489.html"},"modified":"2026-08-29T15:49:29","modified_gmt":"2026-08-29T07:49:29","slug":"%ef%bc%88%e8%ae%ba%e6%96%87%e9%80%9f%e8%af%bb%ef%bc%89subspacead%ef%bc%9a%e7%94%a8-pca-%e5%ad%90%e7%a9%ba%e9%97%b4%e5%81%9a-training-free-few-shot-%e5%bc%82%e5%b8%b8%e6%a3%80%e6%b5%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/97489.html","title":{"rendered":"\uff08\u8bba\u6587\u901f\u8bfb\uff09SubspaceAD\uff1a\u7528 PCA \u5b50\u7a7a\u95f4\u505a Training-Free Few-Shot \u5f02\u5e38\u68c0\u6d4b"},"content":{"rendered":"<p style=\"text-align:justify\">\u8bba\u6587\u9898\u76ee&#xff1a;SubspaceAD: Training-Free Few-Shot Anomaly Detection via Subspace Modeling&#xff08;SubspaceAD&#xff1a;\u57fa\u4e8e\u5b50\u7a7a\u95f4\u5efa\u6a21\u7684\u514d\u8bad\u7ec3\u5c11\u6837\u672c\u5f02\u5e38\u68c0\u6d4b&#xff09;<\/p>\n<p style=\"text-align:justify\">\u4f1a\u8bae&#xff1a;CVPR 2026<\/p>\n<p style=\"text-align:justify\">\u6458\u8981&#xff1a;\u5de5\u4e1a\u68c0\u6d4b\u4e2d\u7684\u89c6\u89c9\u5f02\u5e38\u68c0\u6d4b\u5f80\u5f80\u9762\u4e34\u6bcf\u4e2a\u7c7b\u522b\u53ea\u6709\u5c11\u91cf\u6b63\u5e38\u56fe\u50cf\u53ef\u7528\u7684\u60c5\u51b5\u3002\u8fd1\u671f\u5c11\u6837\u672c\u65b9\u6cd5\u501f\u52a9\u57fa\u7840\u6a21\u578b\u7279\u5f81\u53d6\u5f97\u4e86\u5f88\u5f3a\u7684\u7ed3\u679c&#xff0c;\u4f46\u901a\u5e38\u4ecd\u4f9d\u8d56\u8bb0\u5fc6\u5e93\u3001\u8f85\u52a9\u6570\u636e\u96c6&#xff0c;\u6216\u5bf9\u89c6\u89c9-\u8bed\u8a00\u6a21\u578b\u8fdb\u884c\u591a\u6a21\u6001\u8c03\u4f18\u3002\u56e0\u6b64&#xff0c;\u4f5c\u8005\u63d0\u51fa\u4e00\u4e2a\u76f4\u63a5\u7684\u95ee\u9898&#xff1a;\u5f53\u89c6\u89c9\u57fa\u7840\u6a21\u578b\u5df2\u7ecf\u80fd\u591f\u63d0\u4f9b\u9ad8\u8d28\u91cf\u7279\u5f81\u8868\u793a\u65f6&#xff0c;\u8fd9\u4e9b\u590d\u6742\u673a\u5236\u662f\u5426\u4ecd\u7136\u5fc5\u8981&#xff1f;\u4e3a\u56de\u7b54\u8fd9\u4e00\u95ee\u9898&#xff0c;\u8bba\u6587\u63d0\u51fa SubspaceAD&#xff0c;\u4e00\u79cd\u65e0\u9700\u8bad\u7ec3\u7684\u65b9\u6cd5\u3002\u9996\u5148&#xff0c;\u4f7f\u7528\u51bb\u7ed3\u7684 DINOv2 \u4ece\u5c11\u91cf\u6b63\u5e38\u56fe\u50cf\u4e2d\u63d0\u53d6 patch \u7ea7\u7279\u5f81&#xff1b;\u968f\u540e&#xff0c;\u7528\u4e3b\u6210\u5206\u5206\u6790&#xff08;PCA&#xff09;\u62df\u5408\u8fd9\u4e9b\u7279\u5f81&#xff0c;\u4f30\u8ba1\u6b63\u5e38\u53d8\u5316\u6240\u5728\u7684\u4f4e\u7ef4\u5b50\u7a7a\u95f4\u3002\u63a8\u7406\u65f6&#xff0c;\u901a\u8fc7\u6d4b\u8bd5\u7279\u5f81\u76f8\u5bf9\u4e8e\u8be5\u5b50\u7a7a\u95f4\u7684\u91cd\u5efa\u6b8b\u5dee\u68c0\u6d4b\u5f02\u5e38&#xff0c;\u5f97\u5230\u5177\u6709\u53ef\u89e3\u91ca\u6027\u548c\u7edf\u8ba1\u4f9d\u636e\u7684\u5f02\u5e38\u5206\u6570\u3002\u5c3d\u7ba1\u65b9\u6cd5\u7b80\u5355&#xff0c;SubspaceAD \u5728 one-shot \u4e0e few-shot \u8bbe\u7f6e\u4e0b\u90fd\u53d6\u5f97\u4e86\u6700\u5148\u8fdb\u7684\u6027\u80fd&#xff0c;\u540c\u65f6\u4e0d\u9700\u8981\u8bad\u7ec3\u3001Prompt Tuning \u6216 Memory Bank\u3002\u5728 one-shot \u4e2d&#xff0c;\u6458\u8981\u62a5\u544a\u5176\u5728 MVTec-AD \u4e0a\u7684\u56fe\u50cf\u7ea7\u548c\u50cf\u7d20\u7ea7 AUROC \u5206\u522b\u4e3a 98.0% \u548c 97.6%&#xff0c;\u5728 VisA \u4e0a\u5206\u522b\u4e3a 93.3% \u548c 98.3%\u3002<\/p>\n<p style=\"text-align:justify\">\u6e90\u7801\u4e0e Demo&#xff1a;GitHub &#8211; CLendering\/SubspaceAD \u00b7 GitHub<\/p>\n<hr \/>\n<h3 style=\"text-align:justify\">\u4e00\u3001\u7814\u7a76\u80cc\u666f\u4e0e\u6838\u5fc3\u95ee\u9898<\/h3>\n<p style=\"text-align:justify\">\u5de5\u4e1a\u5f02\u5e38\u68c0\u6d4b\u7684\u73b0\u5b9e\u96be\u70b9\u662f\u6b63\u5e38\u6837\u672c\u4e5f\u53ef\u80fd\u975e\u5e38\u5c11\u3002Full-shot \u65b9\u6cd5\u9700\u8981\u5927\u91cf\u65e0\u7f3a\u9677\u56fe\u50cf\u5efa\u7acb\u6b63\u5e38\u5206\u5e03&#xff1b;Zero-shot \u65b9\u6cd5\u53ef\u4ee5\u4f9d\u8d56 CLIP \u4e00\u7c7b\u89c6\u89c9\u8bed\u8a00\u6a21\u578b\u548c\u6587\u672c Prompt&#xff0c;\u4f46\u7ec6\u5c0f\u88c2\u7eb9\u3001\u6c61\u67d3\u3001\u7f3a\u4ef6\u7b49\u975e\u8bed\u4e49\u5f02\u5e38\u5e76\u4e0d\u603b\u80fd\u88ab\u8bed\u8a00\u51c6\u786e\u63cf\u8ff0\u3002\u56e0\u6b64&#xff0c;\u8bba\u6587\u805a\u7126 k \u2208 {1, 2, 4} \u7684 Few-Shot \u573a\u666f&#xff1a;\u6bcf\u4e2a\u7c7b\u522b\u53ea\u7ed9\u6781\u5c11\u91cf\u6b63\u5e38\u56fe\u50cf&#xff0c;\u8ba9\u6a21\u578b\u5b9a\u4e49\u201c\u4ec0\u4e48\u662f\u6b63\u5e38\u201d\u3002<\/p>\n<p style=\"text-align:justify\">\u73b0\u6709\u65b9\u6cd5\u8981\u4e48\u8bad\u7ec3\u91cd\u5efa\u6a21\u578b&#xff0c;\u8981\u4e48\u4fdd\u5b58\u5927\u91cf\u6b63\u5e38 patch \u6784\u5efa Memory Bank&#xff0c;\u8981\u4e48\u5f15\u5165 Prompt\u3001\u8f85\u52a9\u6570\u636e\u548c\u591a\u6a21\u6001\u8c03\u4f18\u3002SubspaceAD \u7684\u6838\u5fc3\u95ee\u9898\u5f88\u76f4\u63a5&#xff1a;\u5982\u679c DINOv2 \u5df2\u7ecf\u63d0\u4f9b\u4e86\u8db3\u591f\u597d\u7684\u7279\u5f81\u7a7a\u95f4&#xff0c;\u8fd8\u9700\u8981\u8fd9\u4e48\u590d\u6742\u7684\u540e\u7aef\u5417&#xff1f;\u8bba\u6587\u6700\u7ec8\u9009\u62e9\u5f7b\u5e95\u653e\u5f03 Memory Bank \u548c Prompt Tuning&#xff0c;\u8f6c\u800c\u7528 PCA \u76f4\u63a5\u523b\u753b\u6b63\u5e38\u7279\u5f81\u7684\u53d8\u5316\u7a7a\u95f4\u3002<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"338\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074924-6a928f047c972.png\" width=\"559\" \/><\/p>\n<p style=\"text-align:justify\">\u8bba\u6587 Figure 1 &#xff1a;\u4ec5\u4f7f\u7528 1 \u5f20\u6b63\u5e38\u53c2\u8003\u56fe\u50cf\u65f6&#xff0c;SubspaceAD \u5728 MVTec-AD 15 \u4e2a\u7c7b\u522b\u4e0a\u7684\u5f02\u5e38\u5206\u5272\u7ed3\u679c<\/p>\n<p style=\"text-align:justify\">Figure 1 \u5148\u7ed9\u51fa\u4e00\u4e2a\u76f4\u89c2\u7ed3\u8bba&#xff1a;\u53ea\u7528\u4e00\u5f20\u6b63\u5e38\u56fe\u50cf&#xff0c;\u65b9\u6cd5\u4f9d\u7136\u80fd\u5728\u5bf9\u8c61\u548c\u7eb9\u7406\u7c7b\u522b\u4e0a\u5b9a\u4f4d\u591a\u79cd\u7f3a\u9677\u3002\u8bba\u6587\u771f\u6b63\u60f3\u5f3a\u8c03\u7684\u662f\u201c\u5f3a\u8868\u5f81 &#043; \u7b80\u5355\u7edf\u8ba1\u6a21\u578b\u201d\u53ef\u80fd\u5df2\u7ecf\u8db3\u591f\u3002<\/p>\n<hr \/>\n<h3 style=\"text-align:justify\">\u4e8c\u3001\u65b9\u6cd5\u6574\u4f53\u6846\u67b6&#xff1a;DINOv2 &#043; PCA<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"525\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074925-6a928f05355ee.png\" width=\"1530\" \/><\/p>\n<p style=\"text-align:justify\">\u8bba\u6587 Figure 2 &#xff1a;SubspaceAD \u7684 Fitting \u4e0e Inference \u4e24\u9636\u6bb5\u6574\u4f53\u6d41\u7a0b<\/p>\n<p style=\"text-align:justify\">Figure 2 \u6982\u62ec\u4e86\u65b9\u6cd5\u3002Fitting \u9636\u6bb5\u53ea\u4f7f\u7528\u6b63\u5e38\u6837\u672c&#xff1a;\u51bb\u7ed3\u7684 DINOv2-G \u63d0\u53d6 patch token&#xff0c;\u5bf9\u591a\u4e2a\u4e2d\u95f4\u5c42\u7279\u5f81\u505a\u5e73\u5747&#xff0c;\u518d\u7528\u6240\u6709\u6b63\u5e38 patch \u7279\u5f81\u62df\u5408 PCA\u3002Inference \u9636\u6bb5\u6267\u884c\u540c\u6837\u7684\u7279\u5f81\u63d0\u53d6&#xff0c;\u628a\u6bcf\u4e2a\u6d4b\u8bd5 patch \u6295\u5f71\u5230\u6b63\u5e38\u5b50\u7a7a\u95f4&#xff1b;\u6295\u5f71\u524d\u540e\u5dee\u5f97\u8d8a\u591a&#xff0c;\u8be5\u4f4d\u7f6e\u8d8a\u5f02\u5e38\u3002<\/p>\n<p style=\"text-align:justify\">\u6b63\u5e38\u56fe\u50cf \u2192 DINOv2 \u591a\u5c42\u7279\u5f81 \u2192 PCA \u6b63\u5e38\u5b50\u7a7a\u95f4&#xff1b;\u6d4b\u8bd5\u56fe\u50cf \u2192 \u5b50\u7a7a\u95f4\u6295\u5f71 \u2192 \u91cd\u5efa\u6b8b\u5dee \u2192 \u5f02\u5e38\u56fe<\/p>\n<p style=\"text-align:justify\">\u8fd9\u91cc\u7684 Training-Free \u6307\u4e0d\u8fdb\u884c\u68af\u5ea6\u8bad\u7ec3&#xff0c;\u4e5f\u6ca1\u6709\u53ef\u5b66\u4e60\u68c0\u6d4b\u5934\u6216\u7c7b\u522b Prompt\u3002PCA \u76f4\u63a5\u901a\u8fc7\u7edf\u8ba1\u91cf\u5efa\u7acb\u6b63\u5e38\u5b50\u7a7a\u95f4&#xff0c;\u6bcf\u4e2a\u7c7b\u522b\u6700\u7ec8\u53ea\u9700\u4fdd\u5b58\u5747\u503c\u5411\u91cf \u03bc \u548c\u5b50\u7a7a\u95f4\u57fa\u77e9\u9635 C\u3002<\/p>\n<hr \/>\n<h3 style=\"text-align:justify\">\u4e09\u3001\u7279\u5f81\u8868\u793a&#xff1a;\u4e3a\u4ec0\u4e48\u5e73\u5747 DINOv2 \u4e2d\u95f4\u5c42<\/h3>\n<p style=\"text-align:justify\">SubspaceAD \u7684\u5173\u952e\u5e76\u4e0d\u53ea\u662f\u201c\u4f7f\u7528 DINOv2\u201d&#xff0c;\u800c\u662f\u4f7f\u7528\u54ea\u4e00\u5c42\u3002DINOv2-G \u628a\u56fe\u50cf\u5212\u5206\u4e3a 14 \u00d7 14 patch&#xff0c;\u4f5c\u8005\u9009\u62e9\u7b2c 22\u201328 \u5c42&#xff0c;\u5728\u540c\u4e00\u7a7a\u95f4\u4f4d\u7f6e\u8fdb\u884c\u5747\u503c\u805a\u5408&#xff1a;<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"x_p=\\\\frac{1}{|\\\\mathcal L|}\\\\sum_{l\\\\in\\\\mathcal L}f_l(p)\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074925-6a928f057d70a.png\" \/><\/p>\n<p style=\"text-align:justify\">\u5176\u4e2d (<img decoding=\"async\" alt=\"f_l(p)\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074925-6a928f058cf4d.png\" \/>) \u662f\u7b2c (l) \u4e2a Transformer Block \u5728\u4f4d\u7f6e (p) \u7684\u7279\u5f81\u3002\u4e2d\u95f4\u5c42\u540c\u65f6\u4fdd\u7559\u8bed\u4e49\u4e0e\u5c40\u90e8\u7ed3\u6784&#xff0c;\u800c\u6700\u6df1\u5c42\u66f4\u504f\u7c7b\u522b\u7ea7\u62bd\u8c61&#xff1b;\u5f02\u5e38\u68c0\u6d4b\u6070\u6070\u4f9d\u8d56\u5212\u75d5\u3001\u8fb9\u7f18\u7834\u574f\u7b49\u7ec6\u8282&#xff0c;\u56e0\u6b64\u6700\u540e\u4e00\u5c42\u672a\u5fc5\u6700\u4f73\u3002<\/p>\n<p style=\"text-align:justify\">Few-Shot \u4e0b&#xff0c;\u4e00\u4e24\u5f20\u6b63\u5e38\u56fe\u50cf\u4e5f\u4e0d\u8db3\u4ee5\u7a33\u5b9a\u4f30\u8ba1\u534f\u65b9\u5dee\u3002\u8bba\u6587\u4e3a\u6bcf\u5f20\u6b63\u5e38\u56fe\u751f\u6210 Na &#061; 30 \u4e2a\u968f\u673a\u65cb\u8f6c\u89c6\u56fe&#xff0c;\u8303\u56f4\u4e3a 0\u00b0\u2013345\u00b0&#xff0c;\u518d\u628a\u539f\u56fe\u548c\u589e\u5f3a\u56fe\u7684 patch \u4e00\u8d77\u7528\u4e8e PCA&#xff0c;\u4ee5\u8986\u76d6\u5e38\u89c1\u51e0\u4f55\u53d8\u5316\u3002\u65b9\u5411\u654f\u611f\u7684 transistor \u7c7b\u522b\u4e0d\u4f7f\u7528\u65cb\u8f6c\u589e\u5f3a\u3002<\/p>\n<hr \/>\n<h3 style=\"text-align:justify\">\u56db\u3001\u6838\u5fc3\u673a\u5236&#xff1a;\u5f02\u5e38\u5c31\u662f\u79bb\u5f00\u6b63\u5e38\u5b50\u7a7a\u95f4<\/h3>\n<p style=\"text-align:justify\">PCA \u5047\u8bbe\u6b63\u5e38 patch \u867d\u5904\u5728 D \u7ef4\u7279\u5f81\u7a7a\u95f4\u4e2d&#xff0c;\u4f46\u4e3b\u8981\u53d8\u5316\u96c6\u4e2d\u5728\u66f4\u4f4e\u7ef4\u7684\u7ebf\u6027\u5b50\u7a7a\u95f4\u3002\u8bba\u6587\u5c06\u6b63\u5e38\u7279\u5f81\u5199\u4e3a (<img decoding=\"async\" alt=\"x=\\\\mu+Cz+\\\\epsilon\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074925-6a928f059bd9b.png\" \/>)&#xff0c;\u5176\u4e2d C \u7531\u534f\u65b9\u5dee\u77e9\u9635\u524d r \u4e2a\u7279\u5f81\u5411\u91cf\u7ec4\u6210\u3002r \u4e0d\u56fa\u5b9a&#xff0c;\u800c\u7531\u7d2f\u8ba1\u89e3\u91ca\u65b9\u5dee\u51b3\u5b9a&#xff1a;<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\\\\sum_{i=1}^{r}\\\\lambda_i \\\\ge \\\\tau\\\\sum_{i=1}^{D}\\\\lambda_i,\\\\qquad \\\\tau=0.99\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074925-6a928f05aa47d.png\" \/><\/p>\n<p style=\"text-align:justify\">\u63a8\u7406\u65f6&#xff0c;(<img decoding=\"async\" alt=\"x_{\\\\text{proj}}=\\\\mu+CC^\\\\top(x_p-\\\\mu)\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074925-6a928f05baef9.png\" \/>)&#xff0c;\u5e76\u7528 (<img decoding=\"async\" alt=\"S(x_p)=|x_p-x_{\\\\text{proj}}|_2^2\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074925-6a928f05ca5a3.png\" \/>) \u4f5c\u4e3a patch \u5f02\u5e38\u5206\u6570\u3002<\/p>\n<p style=\"text-align:justify\">\u4e5f\u5c31\u662f\u8bf4&#xff0c;\u6a21\u578b\u4e0d\u662f\u5bfb\u627e\u201c\u6700\u8fd1\u7684\u6b63\u5e38 patch\u201d&#xff0c;\u800c\u662f\u5224\u65ad\u201c\u8be5\u7279\u5f81\u80fd\u5426\u88ab\u6b63\u5e38\u53d8\u5316\u7684\u4e3b\u65b9\u5411\u89e3\u91ca\u201d&#xff1b;\u65e0\u6cd5\u89e3\u91ca\u7684\u6b63\u4ea4\u6b8b\u5dee\u5c31\u662f\u5f02\u5e38\u8bc1\u636e\u3002<\/p>\n<p style=\"text-align:justify\">\u56fe\u50cf\u7ea7\u5206\u6570\u4f7f\u7528 TVaR&#xff0c;\u5373\u53d6\u5f02\u5e38\u56fe\u6700\u9ad8 1% patch \u5206\u6570\u7684\u5e73\u5747\u503c&#xff0c;\u51cf\u5c11\u5355\u4e2a\u566a\u58f0\u6781\u503c\u7684\u5f71\u54cd\u3002\u50cf\u7d20\u7ea7\u7ed3\u679c\u7531 patch \u5f02\u5e38\u56fe\u53cc\u7ebf\u6027\u4e0a\u91c7\u6837&#xff0c;\u518d\u7528 \u03c3 &#061; 4 \u7684 Gaussian Filter \u5e73\u6ed1&#xff1b;\u53ef\u89c6\u5316\u4f7f\u7528 Min-Max \u5f52\u4e00\u5316&#xff0c;\u800c AUROC\u3001PRO \u8ba1\u7b97\u4f7f\u7528\u539f\u59cb\u5206\u6570\u3002<\/p>\n<hr \/>\n<h3 style=\"text-align:justify\">\u4e94\u3001\u5b9e\u9a8c\u7ed3\u679c\u4e0e\u6d88\u878d\u5206\u6790<\/h3>\n<h4 style=\"text-align:justify\">5.1 \u5b9e\u9a8c\u8bbe\u7f6e<\/h4>\n<p style=\"text-align:justify\">\u5b9e\u9a8c\u4f7f\u7528 MVTec-AD \u548c VisA&#xff0c;\u56fe\u50cf\u7ea7\u6307\u6807\u4e3a AUROC\u3001AUPR&#xff0c;\u50cf\u7d20\u7ea7\u6307\u6807\u4e3a AUROC\u3001PRO\u3002\u9ed8\u8ba4\u8bbe\u7f6e\u4e3a DINOv2-G\u300122\u201328 \u5c42\u5747\u503c\u3001672 px \u8f93\u5165\u3001\u03c4 &#061; 0.99\u3001TVaR \u03c1 &#061; 1%&#xff1b;1\/2\/4-shot \u5747\u8fd0\u884c 5 \u4e2a\u968f\u673a\u79cd\u5b50\u3002<\/p>\n<h4 style=\"text-align:justify\">5.2 Few-Shot \u4e3b\u5b9e\u9a8c<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"896\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074925-6a928f05d9ab2.png\" width=\"1269\" \/><\/p>\n<p style=\"text-align:justify\">\u8bba\u6587 Table 1&#xff1a;MVTec-AD \u4e0e VisA \u4e0a 1\/2\/4-shot \u7684\u56fe\u50cf\u7ea7\u68c0\u6d4b\u548c\u50cf\u7d20\u7ea7\u5b9a\u4f4d\u5bf9\u6bd4<\/p>\n<p style=\"text-align:justify\">Table 1 \u662f\u6838\u5fc3\u5b9a\u91cf\u8bc1\u636e\u30021-shot \u65f6&#xff0c;SubspaceAD \u5728 MVTec-AD \u4e0a\u8fbe\u5230 97.1% \u56fe\u50cf\u7ea7 AUROC\u300197.5% \u50cf\u7d20\u7ea7 AUROC \u548c 93.7% PRO&#xff1b;\u5728 VisA \u4e0a\u8fbe\u5230 93.4% \u56fe\u50cf\u7ea7 AUROC\u300198.2% \u50cf\u7d20\u7ea7 AUROC \u548c 93.5% PRO\u3002VisA \u56fe\u50cf\u7ea7 AUROC \u76f8\u6bd4 AnomalyDINO \u7684 87.4% \u9ad8 6.0 \u4e2a\u767e\u5206\u70b9\u3002<\/p>\n<p style=\"text-align:justify\">4-shot \u65f6&#xff0c;MVTec-AD \u7684 PRO \u4e3a 94.3%&#xff0c;VisA \u56fe\u50cf\u7ea7 AUROC \u8fbe\u5230 94.7%\u3002\u4f46\u5e76\u975e\u6240\u6709\u6307\u6807\u90fd\u7b2c\u4e00&#xff0c;\u4f8b\u5982 VisA 4-shot PRO \u4e3a 93.8%&#xff0c;\u7565\u4f4e\u4e8e AnomalyDINO \u7684 94.1%\u3002\u56e0\u6b64\u51c6\u786e\u8bf4\u6cd5\u662f&#xff1a;SubspaceAD \u5728\u7edd\u5927\u591a\u6570\u6307\u6807\u4e0a\u8fbe\u5230\u6216\u8d85\u8fc7\u73b0\u6709\u65b9\u6cd5&#xff0c;\u800c\u4e0d\u662f\u201c\u5168\u9762\u7b2c\u4e00\u201d\u3002<\/p>\n<p style=\"text-align:justify\">\u9700\u8981\u6ce8\u610f\u7684\u662f&#xff0c;\u8bba\u6587\u6458\u8981\u4e2d\u7684 one-shot \u6570\u5b57\u4e0e Table 1 \u7684\u4e94\u6b21\u968f\u673a\u8fd0\u884c\u5747\u503c\u7565\u6709\u5dee\u5f02&#xff1a;\u6458\u8981\u7ed9\u51fa MVTec-AD 98.0% \/ 97.6%\u3001VisA 93.3% \/ 98.3%&#xff0c;\u800c\u4e3b\u5b9e\u9a8c\u8868\u91c7\u7528\u4e0a\u8ff0 mean \u00b1 std \u7ed3\u679c\u3002\u672c\u6587\u5b9e\u9a8c\u89e3\u8bfb\u7edf\u4e00\u4ee5 Table 1 \u4e3a\u51c6\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"630\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074926-6a928f065084e.png\" width=\"1551\" \/><\/p>\n<p style=\"text-align:justify\">\u8bba\u6587 Figure 3 &#xff1a;SubspaceAD\u3001PromptAD \u4e0e AnomalyDINO \u5728 VisA \/ MVTec-AD \u4e0a\u7684 1-shot \u5b9a\u6027\u5bf9\u6bd4<\/p>\n<p style=\"text-align:justify\">Figure 3 \u4e2d&#xff0c;SubspaceAD \u7684\u70ed\u529b\u56fe\u66f4\u96c6\u4e2d\u5728\u771f\u5b9e\u7f3a\u9677\u533a\u57df&#xff0c;\u80cc\u666f\u8bef\u6fc0\u6d3b\u66f4\u5c11&#xff0c;\u8fb9\u754c\u4e5f\u66f4\u6e05\u6670&#xff0c;\u4e0e\u201c\u5f02\u5e38\u7531\u5b50\u7a7a\u95f4\u5916\u6b8b\u5dee\u4f53\u73b0\u201d\u7684\u8bbe\u8ba1\u903b\u8f91\u4e00\u81f4\u3002<\/p>\n<h4 style=\"text-align:justify\">5.3 Batched 0-Shot<\/h4>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"278\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074927-6a928f072e470.png\" width=\"404\" \/><\/p>\n<p style=\"text-align:justify\">\u8bba\u6587 Table 2&#xff1a;Batched 0-shot \u573a\u666f\u4e0b\u7684\u56fe\u50cf\u7ea7 AUROC \u5bf9\u6bd4<\/p>\n<p style=\"text-align:justify\">\u4f5c\u8005\u8fdb\u4e00\u6b65\u5047\u8bbe\u6574\u6279\u672a\u6807\u6ce8\u6d4b\u8bd5\u56fe\u4e2d\u201c\u5927\u591a\u6570 patch \u6b63\u5e38\u201d&#xff0c;\u76f4\u63a5\u7528\u5168\u90e8\u6d4b\u8bd5 patch \u62df\u5408 PCA\u3002VisA \u4e0a SubspaceAD \u8fbe\u5230 94.1% AUROC&#xff0c;\u4e0e MuSc \u5e76\u5217\u6700\u597d&#xff1b;MVTec-AD \u4e3a 96.6%&#xff0c;\u4f4e\u4e8e MuSc \u7684 97.8%&#xff0c;\u4f46\u9ad8\u4e8e\u4e24\u79cd AnomalyDINO-S \u914d\u7f6e\u3002<\/p>\n<p style=\"text-align:justify\">\u8fd9\u4e2a\u5b9e\u9a8c\u5f88\u6709\u610f\u601d&#xff0c;\u56e0\u4e3a\u5b83\u8bf4\u660e PCA \u5e76\u4e0d\u53ea\u80fd\u5de5\u4f5c\u5728 Few-Shot&#xff1a;\u53ea\u8981\u5f02\u5e38\u76f8\u5bf9\u7a00\u758f\u3001\u6b63\u5e38\u53d8\u5316\u5360\u636e\u4e3b\u5bfc\u65b9\u5411&#xff0c;\u4e3b\u6210\u5206\u4ecd\u6709\u673a\u4f1a\u4ece\u6df7\u5408\u6570\u636e\u4e2d\u63d0\u53d6\u51fa\u4e3b\u8981\u6b63\u5e38\u7ed3\u6784\u3002<\/p>\n<h4 style=\"text-align:justify\">5.4 \u6d88\u878d&#xff1a;\u6027\u80fd\u4e3b\u8981\u7531\u7279\u5f81\u8d28\u91cf\u51b3\u5b9a<\/h4>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"164\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074927-6a928f0762cb4.png\" width=\"473\" \/><\/p>\n<p style=\"text-align:justify\">\u8bba\u6587 Table 3&#xff1a;\u4e0d\u540c DINOv2 \u5c42\u805a\u5408\u7b56\u7565\u7684 4-shot \u6d88\u878d<\/p>\n<p style=\"text-align:justify\">\u53ea\u7528\u6700\u540e\u4e00\u5c42\u65f6&#xff0c;VisA \u56fe\u50cf\u7ea7 AUROC \u4e3a 89.1%\u3001PRO \u4e3a 88.3%&#xff1b;\u4f7f\u7528 22\u201328 \u5c42 Mean-pool \u540e\u63d0\u5347\u5230 94.7% \u548c 93.8%\u3002Concat(Middle-7) \u5728 MVTec-AD \u56fe\u50cf\u7ea7 AUROC \u4e0a\u66f4\u9ad8&#xff0c;\u4f46 Mean-pool(Middle-7) \u5728\u4e24\u4e2a\u6570\u636e\u96c6\u4e0a\u66f4\u5747\u8861\u3002<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"372\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074927-6a928f07860aa.png\" width=\"535\" \/><\/p>\n<p style=\"text-align:justify\">\u8bba\u6587 Figure 4\u00a0&#xff1a;\u8f93\u5165\u5206\u8fa8\u7387 256\u2013672 px \u5bf9\u6027\u80fd\u7684\u5f71\u54cd<\/p>\n<p style=\"text-align:justify\">Figure 4 \u663e\u793a&#xff0c;\u5206\u8fa8\u7387\u4ece 256 px \u589e\u5927\u540e\u6027\u80fd\u660e\u663e\u63d0\u5347&#xff0c;\u4f46 448\u2013672 px \u9010\u6e10\u9971\u548c&#xff0c;672 px \u6574\u4f53\u6700\u597d\u3002\u4e5f\u5c31\u662f\u8bf4&#xff0c;\u8db3\u591f\u7684\u7a7a\u95f4\u7ec6\u8282\u5f88\u91cd\u8981&#xff0c;\u4f46\u7ee7\u7eed\u589e\u52a0\u5206\u8fa8\u7387\u5e76\u4e0d\u4f1a\u5e26\u6765\u7ebf\u6027\u6536\u76ca\u3002<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"378\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074927-6a928f07e8fd3.png\" width=\"504\" \/><\/p>\n<p style=\"text-align:justify\">\u8bba\u6587 Figure 5&#xff1a;DINOv2 ViT-S\/B\/L\/G \u4e0d\u540c Backbone \u89c4\u6a21\u5bf9\u6027\u80fd\u7684\u5f71\u54cd<\/p>\n<p style=\"text-align:justify\">Figure 5 \u7684\u8d8b\u52bf\u5f88\u6e05\u695a&#xff1a;Backbone \u8d8a\u5927&#xff0c;\u6574\u4f53\u6027\u80fd\u8d8a\u5f3a\u3002SubspaceAD \u7684\u4e0a\u9650\u4e3b\u8981\u7531 Foundation Model \u7684\u8868\u793a\u80fd\u529b\u51b3\u5b9a&#xff1b;\u5982\u679c\u66f4\u5173\u6ce8\u8fb9\u7f18\u90e8\u7f72&#xff0c;\u4e5f\u53ef\u4ee5\u4f7f\u7528\u66f4\u5c0f\u7684 DINOv2-S\/14\u3002<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"316\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260829074928-6a928f082d2c3.png\" width=\"302\" \/><\/p>\n<p style=\"text-align:justify\">\u8bba\u6587 Table 4&#xff1a;PCA \u7d2f\u8ba1\u89e3\u91ca\u65b9\u5dee\u9608\u503c \u03c4 \u7684\u6d88\u878d<\/p>\n<p style=\"text-align:justify\">\u03c4 \u5728 0.95\u20130.99 \u4e4b\u95f4\u65f6\u6574\u4f53\u8f83\u7a33\u5b9a&#xff0c;\u4f46 \u03c4 &#061; 1.00 \u65f6\u6027\u80fd\u7a81\u7136\u5d29\u6e83&#xff0c;\u4f8b\u5982 MVTec-AD 1-shot \u56fe\u50cf\u7ea7 AUROC \u964d\u5230 45.3%&#xff0c;VisA \u964d\u5230 38.6%\u3002\u5f53 PCA \u628a\u5168\u90e8\u65b9\u5dee\u90fd\u7eb3\u5165\u201c\u6b63\u5e38\u7a7a\u95f4\u201d\u65f6&#xff0c;\u5f02\u5e38\u4e5f\u66f4\u5bb9\u6613\u88ab\u91cd\u5efa&#xff0c;\u6b63\u4ea4\u6b8b\u5dee\u4fe1\u53f7\u56e0\u6b64\u6d88\u5931\u3002\u8fd9\u662f\u8bba\u6587\u201c\u5f02\u5e38\u4e3b\u8981\u5b58\u5728\u4e8e\u6b8b\u5dee\u5b50\u7a7a\u95f4\u201d\u8fd9\u4e00\u5047\u8bbe\u6700\u76f4\u89c2\u7684\u4e00\u7ec4\u8bc1\u636e\u3002<\/p>\n<p style=\"text-align:justify\">\u6548\u7387\u65b9\u9762&#xff0c;\u6bcf\u4e2a\u7c7b\u522b\u7684 PCA \u6a21\u578b\u901a\u5e38\u5c0f\u4e8e 1 MB&#xff1b;\u5355\u5f20 H100 \u4e0a\u5904\u7406 672 \u00d7 672 \u56fe\u50cf\u7ea6 300 ms&#xff0c;\u5176\u4e2d\u7ea6 226 ms \u662f DINOv2-G \u524d\u5411&#xff0c;\u5b50\u7a7a\u95f4\u6295\u5f71\u548c\u6253\u5206\u7ea6 74 ms\u3002\u771f\u6b63\u7684\u8ba1\u7b97\u74f6\u9888\u4ecd\u662f Backbone&#xff0c;\u800c\u4e0d\u662f PCA\u3002<\/p>\n<hr \/>\n<h3 style=\"text-align:justify\">\u516d\u3001\u603b\u7ed3\u4e0e\u601d\u8003<\/h3>\n<p style=\"text-align:justify\">\u5982\u679c\u628a SubspaceAD \u538b\u7f29\u6210\u4e00\u53e5\u8bdd&#xff1a;\u7528 DINOv2 \u6784\u9020\u9ad8\u8d28\u91cf\u7279\u5f81\u7a7a\u95f4&#xff0c;\u7528 PCA \u627e\u5230\u6b63\u5e38\u53d8\u5316\u7684\u4e3b\u65b9\u5411&#xff0c;\u518d\u628a\u65e0\u6cd5\u88ab\u8fd9\u4e9b\u65b9\u5411\u89e3\u91ca\u7684\u6b8b\u5dee\u5f53\u4f5c\u5f02\u5e38\u3002<\/p>\n<p style=\"text-align:justify\">\u8fd9\u7bc7\u8bba\u6587\u6709\u610f\u601d\u7684\u5730\u65b9\u4e0d\u5728\u4e8e PCA \u672c\u8eab&#xff0c;\u800c\u5728\u4e8e\u5b83\u91cd\u65b0\u56de\u7b54\u4e86\u201c\u5f3a Foundation Model \u65f6\u4ee3&#xff0c;\u540e\u7aef\u8fd8\u9700\u8981\u591a\u590d\u6742\u201d\u8fd9\u4e2a\u95ee\u9898\u3002\u5b9e\u9a8c\u8868\u660e&#xff0c;\u5728 Few-Shot \u5de5\u4e1a\u5f02\u5e38\u68c0\u6d4b\u4e2d&#xff0c;\u4e00\u4e2a\u65e0\u68af\u5ea6\u8bad\u7ec3\u3001\u65e0 Memory Bank\u3001\u65e0 Prompt Tuning 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