{"id":258,"date":"2024-10-23T16:43:02","date_gmt":"2024-10-23T08:43:02","guid":{"rendered":"https:\/\/eve2333.top\/?p=258"},"modified":"2024-10-23T16:43:02","modified_gmt":"2024-10-23T08:43:02","slug":"lenet%e4%b8%8ealexnet%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/eve2333.top\/?p=258","title":{"rendered":"LeNet\u4e0eAlexNet\u539f\u7406"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">LeNet-5\u7f51\u7edc<\/h1>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1033\" height=\"472\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671503-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161729.png\" alt=\"\" class=\"wp-image-259\" style=\"width:810px;height:auto\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671503-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161729.png 1033w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671503-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161729-300x137.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671503-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161729-1024x468.png 1024w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671503-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161729-768x351.png 768w\" sizes=\"auto, (max-width: 1033px) 100vw, 1033px\" \/><\/figure>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u6a21\u578b\u5f88\u5bb9\u6613\u642d\u5efa\uff0c\u771f\u6b63\u7684\u96be\u70b9\u5728\u4e8e\u6570\u636e\u5904\u7406\u548c\u8bad\u7ec3\u4ee5\u53ca\u540e\u7eed\u9a8c\u8bc1<\/p>\n\n\n\n<p><strong>LeNet(LeNet-5)\u4e24\u4e2a\u90e8\u5206<\/strong>\uff1a\u7279\u5f81\u63d0\u53d6\u90e8\u5206\u7531\u4e24\u4e2a\u5377\u79ef\u5c42\u548c\u4e24\u4e2a\u5e73\u5747\u6c60\u5316\u5c42\u7ec4\u6210\uff1b\u5168\u8fde\u63a5\u5c42\uff1a\u7531\u4e09\u4e2a\u5168\u8fde\u63a5\u5c42\u7ec4\u6210\u3002<\/p>\n\n\n\n<p><strong>\u6a21\u578b\u5355\u5143\u7ed3\u6784\uff1a<\/strong>\u4e00\u4e2a\u5377\u79ef\u5c42\u3001\u4e00\u4e2asigmoid\u6fc0\u6d3b\u51fd\u6570\uff0c\u4e00\u4e2a\u6c60\u5316\u5c42<\/p>\n\n\n\n<p><strong>\u6570\u636e\u7684\u4f20\u8f93\uff1a<\/strong><br>\u5377\u79ef\u5c42\u8f93\u5165\u4e3a4\u7ef4\u7684\u6570\u636e\uff08B\uff0cC\uff0cW\uff0cH\uff09\u00a0 \u00a0  \u5377\u79ef\u5c42\u8f93\u51fa\u4e3a4\u7ef4\u7684\u6570\u636e\uff08B\uff0cFN\uff0cOW\uff0cOH\uff09\u00a0 \u00a0\u5168\u8fde\u63a5\u5c42\u7684\u8f93\u5165\u4e3a2\u7ef4\u6570\u636e\uff08B\uff0cL\uff09      \u5168\u8fde\u63a5\u5c42\u7684\u8f93\u51fa\u4e3a2\u7ef4\u6570\u636e\uff08B\uff0cFL\uff09<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1023\" height=\"669\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671553-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161739.png\" alt=\"\" class=\"wp-image-260\" style=\"width:566px;height:auto\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671553-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161739.png 1023w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671553-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161739-300x196.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671553-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161739-768x502.png 768w\" sizes=\"auto, (max-width: 1023px) 100vw, 1023px\" \/><\/figure>\n\n\n\n<p>\u91cd\u590d\u4ee5\u4e0a\u64cd\u4f5c\u5373&nbsp;<img decoding=\"async\" alt=\"X\\rightarrow CNN\\rightarrow sig\\rightarrow pool\" src=\"https:\/\/latex.csdn.net\/eq?X%5Crightarrow%20CNN%5Crightarrow%20sig%5Crightarrow%20pool\"><\/p>\n\n\n\n<p>&nbsp;\u8f93\u5165\u7684\u6570\u636e\u4e00\u6279\u6b21\u6709\u4e00\u767e\u4e2a\uff0c\u901a\u9053\u6570\u662f3\uff0c\u5bbd\u9ad8\u5206\u522b\u4e3a28\u548c28\uff0c\u4e8e\u662f\u4eba\u4e3a\u7684\u8bbe\u5b9a\u5377\u79ef\u6838\u5047\u8bbe\u662f100*3*5*5\uff0c\u90a3\u4e48\u8f93\u51fa\u7684\u6570\u636e4\u7ef4\u7684\u6570\u636e\uff08B\uff0cFN\uff0cOW\uff0cOH\uff09&nbsp; &nbsp; &nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">LeNet-5\u7f51\u7edc\u53c2\u6570<\/h2>\n\n\n\n<p>5\u4ee3\u8868\u7f51\u7edc\u4e2d\u6709\u4e94\u4e2a\u6709\u53c2\u6570\u7684\u5c42\uff0c\u4e8b\u5b9e\u4e0a\u4ed6\u53ea\u67092\u4e2a\u5377\u79ef\u5c42\uff0c\u8fd8\u6709\u4e09\u4e2a\u5168\u8fde\u63a5\u5c42<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"457\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671585-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161750-1024x457.png\" alt=\"\" class=\"wp-image-261\" style=\"width:672px;height:auto\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671585-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161750-1024x457.png 1024w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671585-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161750-300x134.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671585-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161750-768x343.png 768w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671585-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161750.png 1039w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u8f93\u5165\u4e00\u4e2a1*28*28\u7684\u7070\u5ea6\u56fe\uff0c\u7b2c\u4e00\u5c42\u5377\u79ef\u8fd0\u7b97&nbsp;\u5377\u79ef\u6838\u7684\u4e00\u4e2a\u5927\u5c0f5\u00d75\u554a\uff0c\u8fd9\u662f\u4eba\u4e3a\u53bb\u8bbe\u7684\u3002\u5377\u79ef\u6838\u7684\u4e2a\u6570\u5c31\u662f\u516d\u4e2a\uff0c\u8f93\u51fa\u7684\u4e00\u4e2a\u7279\u5f81\u56fe\u7684\u901a\u9053\u6570\u80af\u5b9a\u662f\u516d<\/p>\n\n\n\n<p>&nbsp;\u6700\u5927\u6c60\u5316\u7528\u7684\u6700\u591a\u7684\uff0c\u56e0\u4e3a\u76f8\u5bf9\u6765\u8bf4\uff0c\u5e73\u5747\u6c60\u5316\uff0c\u5b83\u6ca1\u6709\u6700\u5927\u7684\u6548\u679c\u90a3\u4e48\u597d\uff0c\u6700\u5927\u6c60\u5316\u5b83\u80fd\u63d0\u53d6\u5230\u8fd9\u91cc\u9762\u6700\u6709\u6548\u7684\u4e00\u4e2a\u7279\u5f81\uff0c\u800c\u4e0d\u662f\u8bf4\u628a\u5e73\u5747\u628a\u5b83\u7cca\u5f04\u8fc7\u53bb\u3002\u4e3a\u4ec0\u4e48\u6ca1\u6709\u7528\u6700\u5927\u6c60\u5316\u5462\uff0c\u56e0\u4e3a\u90a3\u4e2a\u65f6\u5019\u6700\u5927\u5316\u8fd8\u6ca1\u6709\u88ab\u53d1\u660e\u51fa\u6765\u3002\u4e00\u4e2a\u8ba1\u5212\u4e66\u7684\u64cd\u4f5c<\/p>\n\n\n\n<p>\u6700\u540e\u505a\u4e00\u4e2a\u5c55\u5e73\u64cd\u4f5c\u554a\uff0c\u628a\u6240\u6709\u7684\u7279\u5f81\u56fe\u505a\u4e00\u4e2a\u5c55\u5e73flatten\uff0c\u7136\u540e\u8f93\u5165\u5230\u6211\u4eec\u8fd9\u91cc120\u4e2a\u795e\u7ecf\u5143\u5f53\u4e2d\uff0c\u7136\u540e\u516b\u5341\u56db\u4e2a\u795e\u7ecf\u5143\u518d\u8f93\u5165\u5230\u5341\u4e2a\u795e\u7ecf\u5143\u5f53\u4e2d\uff0c\u8f93\u51fa\u6211\u4eec\u7684\u5206\u7c7b\u7ed3\u679c<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c1\u5c42\u8f93\u5165\u5c42\uff1aInput\u4e3a28\u00d728\u00d71<\/li>\n\n\n\n<li>\u7b2c2\u5c42\u5377\u79ef\u5c42\uff1aInput\u4e3a28\u00d728\u00d71\uff0c\u5377\u79ef\u68385\u00d75 \u00d71\u00d7 6\uff1bstride= 1\uff0c padding=2\u3002output\u4e3a28\u00d728\u00d76<\/li>\n\n\n\n<li>\u7b2c3\u5c42\u5e73\u5747\u6c60\u5316\u5c42\uff1aInput\u4e3a28\u00d728\u00d76\uff0c\u6c60\u5316\u611f\u53d7\u91ce\u4e3a2\u00d72\uff0cstride= 2\uff0coutput\u4e3a14\u00d714\u00d76<\/li>\n\n\n\n<li>\u7b2c4\u5c42\u5377\u79ef\u5c42\uff1aInput\u4e3a14\u00d714\u00d76\uff0c\u5377\u79ef\u68385\u00d75\u00d76 \u00d716\uff0c stride =1\uff0c padding=0,output\u4e3a10\u00d710\u00d716<\/li>\n\n\n\n<li>\u7b2c5\u5c42\u5e73\u5747\u6c60\u5316\u5c42\uff1aInput\u4e3a10\u00d710\u00d716\uff0c\u6c60\u5316\u611f\u53d7\u91ce\u4e3a2\u00d72\uff0cstride=2\uff0coutput \u4e3a5\u00d75\u00d716\uff0cFlatten\u64cd\u4f5c\uff0c\u901a\u8fc7\u5c55\u5e73\u5f97\u5230400\u4e2a\u6570\u636e\u4e0e\u4e4b\u540e\u7684\u5168\u8fde\u63a5\u5c42\u76f8\u8fde\u3002<\/li>\n\n\n\n<li>\u7b2c6\uff5e8\u5c42\u5168\u8fde\u63a5\u5c42\uff1a\u7b2c6\uff5e8\u5c42\u795e\u7ecf\u5143\u4e2a\u6570\u5206\u522b\u4e3a120\uff0c84\uff0c10\u3002\u5176\u4e2d\u795e\u7ecf\u7f51\u7edc\u4e2d\u7528sigmoid\u4f5c\u4e3a\u6fc0\u6d3b\u51fd\u6570\uff0c\u6700\u540e\u4e00\u5c42\u5168\u8fde\u63a5\u5c42\u7528softmax\u8f93\u51fa10\u4e2a\u5206\u7c7b\u3002<\/li>\n<\/ul>\n\n\n\n<p>&nbsp;<strong>\u5377\u79ef\u662f\u7528\u6765\u589e\u591a\u7279\u5f81\u7684\uff0c\u6c60\u5316\u662f\u7528\u6765\u4fee\u6539\u7279\u5f81\u8868\u73b0\u7684\uff0c\u5982\u5e73\u6ed1\u6216\u8005\u7a81\u51fa<\/strong><\/p>\n\n\n\n<p>&nbsp;LeNet-5\u603b\u7ed3<br>1\u3001\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\uff08CNN\uff09\u662f\u4e00\u7c7b\u4f7f\u7528\u5377\u79ef\u5c42\u7684\u7f51\u7edc\u3002<br>2\u3001\u5728\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u4e2d\uff0c\u7ec4\u5408\u4f7f\u7528\u5377\u79ef\u5c42\u3001\u975e\u7ebf\u6027\u6fc0\u6d3b\u51fd\u6570sigmoid\u548c\u5168\u8fde\u63a5\u5c42\u3002<br>3\u3001\u4e3a\u4e86\u6784\u9020\u9ad8\u6027\u80fd\u7684\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\uff0c\u6211\u4eec\u901a\u5e38\u5bf9\u5377\u79ef\u5c42\u8fdb\u884c\u6392\u5217\u9010\u6e10\u964d\u4f4e\u5176\u8868\u793a\u7684\u7a7a\u95f4\u5206\u8fa8\u7387\uff0c\u540c\u65f6\u589e\u52a0\u901a\u9053\u6570\u3002<br>4\u3001\u5728\u4f20\u7edf\u7684\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u4e2d\uff0c\u5377\u79ef\u5757\u7f16\u7801\u5f97\u5230\u7684\u8868\u5f81\u5728\u8f93\u51fa\u4e4b\u524d\u9700\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u5168\u8fde\u63a5\u5c42\u8fdb\u884c\u5904\u7406\u3002<br>5\u3001LeNet\u662f\u6700\u65e9\u53d1\u5e03\u7684\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u4e4b\u4e00\uff0c\u5b83\u7684\u95ee\u4e16\u6709\u5f00\u521b\u610f\u4e49<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">AlexNet\u7f51\u7edc<\/h1>\n\n\n\n<p>\u5728LeNet\u63d0\u51fa\u540e\uff0c\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u5728\u8ba1\u7b97\u673a\u89c6\u89c9\u548c\u673a\u5668\u5b66\u4e60\u9886\u57df\u4e2d\u5f88\u6709\u540d\u6c14\u3002\u4f46\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u5e76\u6ca1\u6709\u4e3b\u5bfc\u8fd9\u4e9b\u9886\u57df\u3002\u8fd9\u662f\u56e0\u4e3a\u867d\u7136LeNet\u5728\u5c0f\u6570\u636e\u96c6\u4e0a\u53d6\u5f97\u4e86\u5f88\u597d\u7684\u6548\u679c\uff0c\u4f46\u662f\u5728\u66f4\u5927\u3001\u66f4\u771f\u5b9e\u7684\u6570\u636e\u96c6\u4e0a\u8bad\u7ec3\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u7684\u6027\u80fd\u548c\u53ef\u884c\u6027\u8fd8\u6709\u5f85\u7814\u7a76\u3002\u4e8b\u5b9e\u4e0a\uff0c\u5728\u4e0a\u4e16\u7eaa90\u5e74\u4ee3\u521d\u52302012\u5e74\u4e4b\u95f4\u7684\u5927\u90e8\u5206\u65f6\u95f4\u91cc\uff0c\u795e\u7ecf\u7f51\u7edc\u5f80\u5f80\u88ab\u5176\u4ed6\u673a\u5668\u5b66\u4e60\u65b9\u6cd5\u8d85\u8d8a\uff0c\u5982\u652f\u6301\u5411\u91cf\u673a\u3002<br>\u800c\u57282012\u5e74\uff0cILSVRC \u5927\u89c4\u6a21\u89c6\u89c9\u8bc6\u522b\u6311\u6218\u8d5b(Imagenet Large Scale Visual Recognition Challenge), AlexNet\u9996\u6b21\u5f15\u5165\u4e86\u6df1\u5ea6\u5377\u79ef \u795e\u7ecf\u7f51\u7edc\uff0c\u5e76\u83b7\u5f972012\u7684\u5927\u89c4\u6a21\u89c6\u89c9\u8bc6\u522b\u6311\u6218\u8d5b\u7684\u51a0\u519b\uff0c\u8fd9\u6807\u5fd7\u7740\u6df1\u5ea6\u5b66\u4e60\u5728\u8ba1\u7b97\u673a\u89c6\u89c9\u9886\u57df\u7684\u5d2d\u9732\u5934\u89d2\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"729\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671687-\u5c4f\u5e55\u622a\u56fe-2024-10-23-162104-1024x729.png\" alt=\"\" class=\"wp-image-264\" style=\"width:841px;height:auto\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671687-\u5c4f\u5e55\u622a\u56fe-2024-10-23-162104-1024x729.png 1024w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671687-\u5c4f\u5e55\u622a\u56fe-2024-10-23-162104-300x214.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671687-\u5c4f\u5e55\u622a\u56fe-2024-10-23-162104-768x547.png 768w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671687-\u5c4f\u5e55\u622a\u56fe-2024-10-23-162104-1536x1093.png 1536w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671687-\u5c4f\u5e55\u622a\u56fe-2024-10-23-162104.png 1933w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u8f93\u5165\u662f227 \uff0c\u4e0d\u662f224\uff0c\u4ee3\u5165\u516c\u5f0f\u6240\u4ee5\u7b97\u4e0d\u51fa55\uff0c\u7528227\u4ee3\u5165\u516c\u5f0f\uff0c\u662f\u53ef\u4ee5\u7b97\u51fa55\u7684\u3002\u540e\u6765\u7684\u90fd\u662f24*24<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5377\u79ef\u6838\u7684\u5927\u5c0f<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u5c42\u5377\u79ef\u6838\u4f7f\u7528\u4e86 11x11 \u7684\u5927\u5377\u79ef\u6838\uff0c\u8fd9\u5728\u65e9\u671f\u7f51\u7edc\u8bbe\u8ba1\uff08\u4f8b\u5982 AlexNet\uff09\u4e2d\u8f83\u4e3a\u5e38\u89c1\uff0c\u53ef\u80fd\u662f\u4e3a\u4e86\u66f4\u597d\u5730\u6355\u83b7\u56fe\u50cf\u4e2d\u7684\u5927\u8303\u56f4\u7279\u5f81\u3002\u5b9e\u9645\u4e0a\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u7684\u53ef\u89e3\u91ca\u6027\u8f83\u5dee\uff0c\u5c5e\u4e8e\u662f\u77e5\u9053\u7b54\u6848\u8bf4\u7406\u7531<\/li>\n\n\n\n<li>\u7136\u800c\uff0c\u540e\u7eed\u7684\u7f51\u7edc\uff08\u5982 VGG\u3001ResNet\uff09\u5927\u591a\u4f7f\u7528 3x3\u30015x5 \u7b49\u8f83\u5c0f\u7684\u5377\u79ef\u6838\uff0c\u56e0\u4e3a\u8fd9\u79cd\u5377\u79ef\u6838\u6709\u52a9\u4e8e\u51cf\u5c11\u53c2\u6570\u91cf\uff0c\u540c\u65f6\u80fd\u591f\u9010\u6b65\u63d0\u53d6\u66f4\u52a0\u7ec6\u81f4\u7684\u7279\u5f81\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6c60\u5316\u5c42\u4e0e\u5377\u79ef\u5c42\u7684\u4f5c\u7528<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u6c60\u5316\u5c42\u4e3b\u8981\u7528\u4e8e\u51cf\u5c11\u7279\u5f81\u56fe\u7684\u5c3a\u5bf8\uff0c\u901a\u5e38\u4f7f\u7528\u6700\u5927\u6c60\u5316\u6216\u5e73\u5747\u6c60\u5316\u3002\u5728\u6df1\u5ea6\u5b66\u4e60\u7f51\u7edc\u8bbe\u8ba1\u4e2d\uff0c\u6700\u5927\u6c60\u5316\u9010\u6e10\u6210\u4e3a\u4e3b\u6d41\uff0c\u56e0\u4e3a\u5b83\u6709\u52a9\u4e8e\u63d0\u53d6\u663e\u8457\u7279\u5f81\u3002<\/li>\n\n\n\n<li>\u5377\u79ef\u5c42\u8d1f\u8d23\u63d0\u53d6\u56fe\u50cf\u7684\u7279\u5f81\uff0c\u901a\u8fc7\u4e0d\u540c\u7684\u901a\u9053\u6570\u548c\u5377\u79ef\u6838\u5927\u5c0f\uff0c\u9010\u5c42\u63d0\u53d6\u66f4\u9ad8\u9636\u7684\u7279\u5f81\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5168\u8fde\u63a5\u5c42\u7684\u53c2\u6570\u91cf<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5168\u8fde\u63a5\u5c42\u7684\u53c2\u6570\u91cf\u6781\u4e3a\u5e9e\u5927\uff0c\u901a\u5e38\u5360\u636e\u6574\u4e2a\u795e\u7ecf\u7f51\u7edc\u7684\u5927\u90e8\u5206\u53c2\u6570\u3002\u4e3a\u4e86\u9632\u6b62\u8fc7\u62df\u5408\uff0c\u8bbe\u8ba1\u4e2d\u53ef\u80fd\u4f1a\u91c7\u7528 Dropout \u6216\u5176\u4ed6\u6b63\u5219\u5316\u65b9\u6cd5\u6765\u51cf\u5c11\u6a21\u578b\u7684\u590d\u6742\u5ea6\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8fc7\u62df\u5408\u7684\u6982\u5ff5<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8fc7\u62df\u5408\u662f\u6307\u6a21\u578b\u5728\u8bad\u7ec3\u96c6\u4e0a\u8868\u73b0\u5f88\u597d\uff0c\u4f46\u5728\u6d4b\u8bd5\u96c6\u4e0a\u8868\u73b0\u8f83\u5dee\u7684\u60c5\u51b5\u901a\u5e38\u662f\u7f51\u7edc\u53c2\u6570\u8fc7\u591a\u5bfc\u81f4\u7684\u3002\u901a\u8fc7\u51cf\u5c11\u5168\u8fde\u63a5\u5c42\u7684\u53c2\u6570\u91cf\u6216\u5f15\u5165\u6b63\u5219\u5316\u65b9\u6cd5Dropout\u64cd\u4f5c\uff0c\u53ef\u4ee5\u6709\u6548\u51cf\u8f7b\u8fc7\u62df\u5408\u95ee\u9898\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u7ed3\uff1a\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u7684\u67b6\u6784\u8bbe\u8ba1\u590d\u6742\uff0c\u6d89\u53ca\u8f93\u5165\u8f93\u51fa\u7279\u5f81\u56fe\u7684\u5c3a\u5bf8\u8ba1\u7b97\u3001\u5377\u79ef\u6838\u7684\u9009\u62e9\u3001\u6c60\u5316\u64cd\u4f5c\u3001\u5168\u8fde\u63a5\u5c42\u7684\u8bbe\u8ba1\u7b49\u7ec6\u8282\u3002\u5728\u8bbe\u8ba1\u548c\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\uff0c\u638c\u63e1\u548c\u8fd0\u7528\u516c\u5f0f\u4ee5\u53ca\u5408\u7406\u8bbe\u8ba1\u5404\u5c42\u53c2\u6570\u662f\u5173\u952e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Dropout\u64cd\u4f5c<\/h2>\n\n\n\n<p>\u7b2c\u4e00\u5c42\u5168\u8fde\u63a5\u5c42\u662f\u67094096\u4e2a\u795e\u7ecf\u7f51\u7edc\u795e\u7ecf\u5143<br>\u7b2c\u4e8c\u5c42\u90a3\u4e2a\u5168\u8fde\u63a5\u5c42\u5b83\u4e5f\u662f\u67094096\u4e2a<br>\u7b2c\u4e09\u4e2a\u5c31\u662f\u6211\u4eec\u8f93\u51fa\u5c42\u4e5f\u5c31\u662f\u6211\u4eec\u67091000\u4e2a\u8fd9\u4e2a\u795e\u7ecf\u5143<br>\u7136\u540e\u7684\u8bdd\u5728\u524d\u9762\u5e73\u5c55\u5c42\u64cd\u4f5c\u91cc\u9762\u7684\u65f6\u5019\u8fd9\u91cc\u5f97\u52309216\u4e2a\u4e5f\u5c31\u662f\u5c06\u8fd11\u4e07\u4e2a\u8f93\u5165\u6570\u636e<\/p>\n\n\n\n<p>\u5047\u8bbe\u6709 9216\u4e2a\u6570\u636e\uff0c\u9690\u85cf\u5c42\u67094096\u4e2a\u795e\u7ecf\u5143\uff0c\u90a3\u4e48\u53c2\u6570\u5c31\u6709w=4096*9216\uff0cn==4096<\/p>\n\n\n\n<p>\u8fc7\u62df\u5408\u5f88\u5f88\u5bb9\u6613\u5e26\u6709\u4e00\u79cd\u6b3a\u9a97\u6027\u561b\uff0c\u5c31\u662f\u53ef\u80fd\u554a\u5c31\u662f\u6211\u4eec\u8bad\u7ec3\u7684\u65f6\u5019\u6548\u679c\u6bd4\u8f83\u597d\u3002\u5230\u5e94\u7528\u7684\u65f6\u5019\u6548\u679c\u4e5f\u6bd4\u8f83\u5dee&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"504\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671725-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161809-1024x504.png\" alt=\"\" class=\"wp-image-266\" style=\"width:543px;height:auto\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671725-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161809-1024x504.png 1024w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671725-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161809-300x148.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671725-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161809-768x378.png 768w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671725-\u5c4f\u5e55\u622a\u56fe-2024-10-23-161809.png 1038w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u200b<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8f93\u5165\u6570\u636e\u548c\u5c42\u7ed3\u6784<\/strong>\uff1a\u4f60\u63d0\u5230\u4e86\u8f93\u5165\u6570\u636e\uff08X1, X2, X3\uff09\uff0c\u5b83\u4eec\u901a\u8fc7\u795e\u7ecf\u5143\u8fde\u63a5\u5c42\u4f20\u64ad\uff0c\u7ecf\u8fc7\u5168\u8fde\u63a5\u5c42\u540e\u5f97\u5230\u8f93\u51fa\u3002\u5728\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\uff0c\u9664\u4e86\u8f93\u5165\u6570\u636e\u5916\uff0c\u8fd8\u6709\u5bf9\u5e94\u7684\u6807\u7b7e\uff08label\uff09\uff0c\u7528\u4e8e\u8ba1\u7b97\u635f\u5931\u51fd\u6570\uff08loss\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8ba1\u7b97\u635f\u5931\u548c\u53cd\u5411\u4f20\u64ad<\/strong>\uff1a\u8bad\u7ec3\u65f6\uff0c\u6a21\u578b\u4f1a\u901a\u8fc7\u524d\u5411\u4f20\u64ad\u8ba1\u7b97\u8f93\u51fa\uff0c\u4e4b\u540e\u5c06\u8f93\u51fa\u4e0e\u771f\u5b9e\u6807\u7b7e\u8fdb\u884c\u5bf9\u6bd4\uff0c\u8ba1\u7b97\u635f\u5931\uff08\u5982\u5747\u65b9\u8bef\u5dee\u6216\u4ea4\u53c9\u71b5\u635f\u5931\uff09\u3002\u7136\u540e\u901a\u8fc7\u53cd\u5411\u4f20\u64ad\uff08backpropagation\uff09\u7b97\u6cd5\u8c03\u6574\u6743\u91cd\uff08W\uff09\u6765\u6700\u5c0f\u5316\u635f\u5931\u3002<\/li>\n\n\n\n<li><strong>Dropout\u673a\u5236<\/strong>\uff1aDropout \u662f\u5728\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\uff0c\u968f\u673a\u201c\u5173\u95ed\u201d\u4e00\u90e8\u5206\u795e\u7ecf\u5143\uff08\u5373\u8ba9\u5b83\u4eec\u6682\u65f6\u5931\u6548\uff09\uff0c\u8fd9\u53ef\u4ee5\u7528\u6765\u9632\u6b62\u6a21\u578b\u8fc7\u62df\u5408\u3002\u4f60\u63d0\u5230\u7684\u8bbe\u5b9a\u6bd4\u4f8b\uff08\u6bd4\u59820.2\uff09\uff0c\u610f\u5473\u7740\u5728\u6bcf\u6b21\u8bad\u7ec3\u4e2d\uff0c\u670920%\u7684\u795e\u7ecf\u5143\u968f\u673a\u5931\u6d3b\u3002<\/li>\n\n\n\n<li><strong>\u968f\u673a\u5931\u6d3b\u4e0e\u66f4\u65b0<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u67d0\u4e00\u8f6e\u8bad\u7ec3\u65f6\uff0cDropout \u968f\u673a\u6311\u9009\u4e00\u90e8\u5206\u795e\u7ecf\u5143\u4e0d\u53c2\u4e0e\u8bad\u7ec3\uff08\u5931\u6d3b\uff09\uff0c\u76f8\u5e94\u7684\u6743\u91cdW\u4e0d\u4f1a\u66f4\u65b0\u3002<\/li>\n\n\n\n<li>\u5728\u4e0b\u4e00\u8f6e\u8bad\u7ec3\u4e2d\uff0c\u5931\u6d3b\u7684\u795e\u7ecf\u5143\u53ef\u80fd\u91cd\u65b0\u88ab\u6fc0\u6d3b\uff0c\u7ee7\u7eed\u53c2\u4e0e\u8bad\u7ec3\u5e76\u66f4\u65b0\u6743\u91cd\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u8fd9\u79cd\u968f\u673a\u7684\u5931\u6d3b\u673a\u5236\uff0c\u6a21\u578b\u53ef\u4ee5\u907f\u514d\u8fc7\u5ea6\u4f9d\u8d56\u67d0\u4e9b\u7279\u5b9a\u7684\u795e\u7ecf\u5143\uff0c\u4ece\u800c\u63d0\u5347\u6cdb\u5316\u80fd\u529b\uff0c\u9632\u6b62\u8fc7\u62df\u5408\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9632\u6b62\u8fc7\u62df\u5408\u548c\u52a0\u901f\u8bad\u7ec3<\/strong>\uff1aDropout \u4e0d\u4ec5\u80fd\u51cf\u5c11\u8fc7\u62df\u5408\uff0c\u8fd8\u53ef\u4ee5\u52a0\u901f\u8bad\u7ec3\uff0c\u56e0\u4e3a\u6bcf\u6b21\u53ea\u66f4\u65b0\u4e00\u90e8\u5206\u6743\u91cd\uff0c\u51cf\u5c11\u4e86\u8ba1\u7b97\u91cf\u3002<\/li>\n\n\n\n<li><strong>\u591a\u8f6e\u8bad\u7ec3\u548c\u6781\u7aef\u60c5\u51b5<\/strong>\uff1a\u7ecf\u8fc7\u591a\u8f6e\u8bad\u7ec3\u540e\uff0c\u51e0\u4e4e\u6240\u6709\u7684\u795e\u7ecf\u5143\u53ca\u5176\u6743\u91cd\u90fd\u4f1a\u53c2\u4e0e\u5230\u67d0\u8f6e\u8bad\u7ec3\u4e2d\uff0c\u5c3d\u7ba1\u7406\u8bba\u4e0a\u53ef\u80fd\u51fa\u73b0\u67d0\u4e9b\u795e\u7ecf\u5143\u5728\u591a\u8f6e\u8bad\u7ec3\u4e2d\u603b\u662f\u5931\u6d3b\uff0c\u4f46\u8fd9\u79cd\u6781\u7aef\u60c5\u51b5\u6bd4\u8f83\u5c11\u89c1\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u7ed3\u6765\u8bf4\uff0c<strong>Dropout<\/strong> \u662f\u901a\u8fc7\u968f\u673a\u5931\u6d3b\u90e8\u5206\u795e\u7ecf\u5143\uff0c\u907f\u514d\u8fc7\u62df\u5408\uff0c\u540c\u65f6\u4fdd\u6301\u6a21\u578b\u7684\u9ad8\u6548\u8bad\u7ec3\u3002\u867d\u7136\u6709\u5176\u4ed6\u9632\u6b62\u8fc7\u62df\u5408\u7684\u6280\u672f\uff0c\u4f46 Dropout \u4ecd\u5728\u4e00\u4e9b\u7f51\u7edc\u7ed3\u6784\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\u3002&nbsp;<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u56fe\u4e0d\u662f\u5f88\u597d\uff0c\u5e94\u8be5\u662f\u795e\u7ecf\u5143\u5931\u6d3b\uff0c\u5373\u4e0e\u5176\u76f8\u8fde\u7684\u6743\u91cd\u90fd\u4e3a\u96f6\uff0c<br><a href=\"https:\/\/www.zhihu.com\/question\/67151971#:~:text=%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0.%20%E6%B7%B1%E5%BA%A6%E5%AD%A6%E4%B9%A0\" target=\"_blank\"  rel=\"nofollow\" >\u6df1\u5ea6\u5b66\u4e60\u4e2d\uff0c\u4f7f\u7528relu\u5b58\u5728\u68af\u5ea6\u8fc7\u5927\u5bfc\u81f4\u795e\u7ecf\u5143\u201c\u6b7b\u4ea1\u201d\uff0c\u600e\u4e48\u7406\u89e3\uff1f - \u77e5\u4e4e (zhihu.com)<\/a><br><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/390655512#:~:text=Relu%E6%BF%80%E6%B4%BB%E5%87%BD%E6%95%B0%E5%AF%BC%E8%87%B4\" target=\"_blank\"  rel=\"nofollow\" >\u5bf9 Relu\u6fc0\u6d3b\u51fd\u6570\u5bfc\u81f4 [ \u795e\u7ecf\u5143\u6b7b\u4ea1 ] \u7684\u7406\u89e3 - \u77e5\u4e4e (zhihu.com)<\/a><br><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/125480559#:~:text=%E5%9C%A8%E8%AE%AD%E7%BB%83%E8%BF%87%E7%A8%8B%E4%B8%AD%EF%BC%8CDro\" target=\"_blank\"  rel=\"nofollow\" >\u3010\u79d1\u666e\u3011\u795e\u7ecf\u7f51\u7edc\u4e2d\u7684\u968f\u673a\u5931\u6d3b\u65b9\u6cd5 - \u77e5\u4e4e (zhihu.com)<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u56fe\u50cf\u589e\u5f3a&nbsp;<\/h2>\n\n\n\n<p>\u6c34\u5e73\u7ffb\u8f6c\u548c\u968f\u673a\u88c1\u526a\u5c06\u4f1a\u63d0\u4f9b\u5927\u91cf\u6837\u672c\u6570\u636e<\/p>\n\n\n\n<p>PCA\u56fe\u50cf\u589e\u5f3a \u200b<br><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"280\" class=\"wp-image-267\" style=\"width: 600px;\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671790-\u5c4f\u5e55\u622a\u56fe-2024-10-23-162242.png\" alt=\"\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671790-\u5c4f\u5e55\u622a\u56fe-2024-10-23-162242.png 1011w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671790-\u5c4f\u5e55\u622a\u56fe-2024-10-23-162242-300x140.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729671790-\u5c4f\u5e55\u622a\u56fe-2024-10-23-162242-768x359.png 768w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n\n\n\n<p>PCA\u56fe\u50cf\u589e\u5f3a\u6d41\u7a0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1\u3001\u5c06\u56fe\u7247\u6309\u7167RGB\u4e09\u901a\u9053\u8fdb\u884c<s>normalization\u5f52\u4e00\u5316<\/s>\u5904\u7406\uff0c\u5747\u503c\u4e3a0\uff0c\u65b9\u5dee\u4e3a1\uff08\u5e94\u8be5\u662fz-score\u6807\u51c6\u5316\u5427\uff09<\/li>\n\n\n\n<li>2\u3001\u5c06\u56fe\u7247\u6309\u7167channel\u5c55\u5e73\u6210\u5927\u5c0f\u4e3a\uff08H*W\uff0c3\uff09\u7684\u77e9\u9635\u30023\u3001\u8ba1\u7b97\u5c55\u5e73\u540e\u7684\u77e9\u9635\u7684\u534f\u65b9\u5dee\u77e9\u9635\uff0c\u534f\u65b9\u5dee\u77e9\u9635\u7684\u5927\u5c0f\u4e3a(3,3)<\/li>\n\n\n\n<li>4\u3001\u5bf9\u534f\u65b9\u5dee\u77e9\u9635\u8fdb\u884c\u7279\u5f81\u5206\u89e3\uff0c\u5f97\u5230\u5bf9\u5e94\u7684\u7279\u5f81\u5411\u91cf\uff083\uff0c3\uff09\u548c\u7279\u5f81\u503c\uff083\uff0c1\uff09<\/li>\n\n\n\n<li>5\u3001\u8bbe\u7f6e\u4e00\u4e2a\u6296\u52a8\u7cfb\u6570\uff0c\u8be5\u6296\u52a8\u7cfb\u6570\u662f\u4e00\u4e2a\uff083\uff0c1\uff09\u5927\u5c0f\u7684\u77e9\u9635\uff0c\u91cc\u9762\u7684\u5143\u7d20\u662f\u968f\u673a\u503c\uff0c\u5229\u7528\u6296\u52a8\u7cfb\u6570\u548c\u5bf9\u5e94\u7684\u7279\u5f81\u8fdb\u884c\u76f8\u4e58\uff0c\u4f9d\u7136\u5f97\u5230\u4e00\u4e2a\uff083\uff0c1\uff09\u5927\u5c0f\u7684\u77e9\u9635\uff0c\u5bf9\u8be5\u77e9\u9635\u8fdb\u884c\u8f6c\u7f6e\u5e76\u548c\u7279\u5f81\u5411\u91cf\u8fdb\u884c\u77e9\u9635\u76f8\u4e58\uff0c\u5f97\u5230\u4e00\u4e2a\uff083\uff0c1\uff09\u5927\u5c0f\u7684\u77e9\u9635\uff1b<\/li>\n\n\n\n<li>6\u3001\u5229\u7528\u4e0a\u8ff0\u6700\u540e\u8ba1\u7b97\u51fa\u6765\u7684\uff083\uff0c1\uff09\u5927\u5c0f\u7684\u77e9\u9635\uff0c\u5176\u4e2d\u76843\u4e2a\u503c\u5206\u522b\u52a0\u5230\u539f\u56fe\u50cf\u7684R\uff0cG\uff0cB\u4e09\u901a\u9053\u4e0a\uff0c\u5c31\u662f\u6700\u540e\u5f97\u5230\u7684\u589e\u5f3a\u7684\u56fe\u50cf\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>1.\u83b7\u53d6\u539f\u59cb\u56fe\u50cf<\/strong><br>\u9996\u5148\uff0c\u6211\u4eec\u83b7\u53d6\u539f\u59cb\u7684RGB\u56fe\u50cf\uff0c\u8fd9\u662f\u4e00\u5e45\u5305\u542b3\u4e2a\u989c\u8272\u901a\u9053\uff08\u7ea2\u3001\u7eff\u3001\u84dd\uff09\u7684\u56fe\u50cf\u3002\u5047\u8bbe\u56fe\u50cf\u7684\u5c3a\u5bf8\u4e3a227\u00d7227\u00d73\uff0c\u5373\u6bcf\u4e2a\u50cf\u7d20\u67093\u4e2a\u901a\u9053\u503c\uff0c\u5206\u522b\u8868\u793a\u7ea2\u3001\u7eff\u3001\u84dd\u7684\u5f3a\u5ea6\u3002<br><strong>2.\u5c06\u56fe\u50cf\u50cf\u7d20\u6570\u636e\u8fdb\u884c\u5411\u91cf\u5316<\/strong><br>\u5728PCA\u5904\u7406\u4e4b\u524d\uff0c\u9700\u8981\u5c06\u56fe\u50cf\u7684\u6570\u636e\u4ece\u4e09\u7ef4\u77e9\u9635\u8f6c\u6362\u4e3a\u4e8c\u7ef4\u77e9\u9635\u3002\u5177\u4f53\u64cd\u4f5c\u5982\u4e0b\uff1a<br>\u00b7\u5c06\u56fe\u50cf\u7684\u6bcf\u4e2a\u50cf\u7d20\u7684RGB\u503c\u770b\u4f5c\u4e00\u4e2a3\u7ef4\u5411\u91cf\uff08\u56e0\u4e3a\u662f3\u4e2a\u901a\u9053\uff09\u3002<br>\u00b7\u5c06\u6240\u6709\u50cf\u7d20\u4ece3\u7ef4\u5411\u91cf\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5927\u77e9\u9635\u7684\u5f62\u5f0f\uff0c\u6bcf\u884c\u4ee3\u8868\u4e00\u4e2a\u50cf\u7d20\uff0c\u5217\u4ee3\u8868\u901a\u9053\u3002\u5047\u8bbe\u56fe\u50cf\u662f227\u00d7227\uff0c\u90a3\u4e48\u8fd9\u4e2a\u77e9\u9635\u7684\u5f62\u72b6\u662f51529\u00d73\uff08\u5373227\u00d7227=51529\u4e2a\u50cf\u7d20\uff0c\u6bcf\u4e2a\u50cf\u7d20\u67093\u4e2a\u901a\u9053)\u3002<br><strong>3.\u8ba1\u7b97\u534f\u65b9\u5dee\u77e9\u9635<\/strong><br>\u63a5\u4e0b\u6765\uff0c\u8ba1\u7b97\u8fd9\u4e2a\u4e8c\u7ef4\u77e9\u9635\u4e2d\u5404\u4e2a\u901a\u9053\u4e4b\u95f4\u7684\u534f\u65b9\u5dee\u77e9\u9635\uff1a<br><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"62\" class=\"wp-image-271\" style=\"width: 300px;\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729672886-\u5c4f\u5e55\u622a\u56fe-2024-10-23-164118.png\" alt=\"\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729672886-\u5c4f\u5e55\u622a\u56fe-2024-10-23-164118.png 658w, https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729672886-\u5c4f\u5e55\u622a\u56fe-2024-10-23-164118-300x62.png 300w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><br>\u8fd9\u91cc\uff0c\u00d7\u662f\u56fe\u50cf\u7684\u50cf\u7d20\u77e9\u9635\uff0cn\u662f\u603b\u7684\u50cf\u7d20\u6570\uff0851529\u4e2a\u50cf\u7d20\uff09\u3002\u534f\u65b9\u5dee\u77e9\u9635\u7528\u4e8e\u63cf\u8ff0\u4e0d\u540c\u901a\u9053\u4e4b\u95f4\u7684\u7ebf\u6027\u5173\u7cfb\u3002\u5bf9\u4e8eRGB\u56fe\u50cf\u6765\u8bf4\uff0c\u8fd9\u662f\u4e00\u4e2a3\u00d73\u7684\u77e9\u9635\u3002<br><strong>4.\u8fdb\u884c\u7279\u5f81\u503c\u5206\u89e3<\/strong><br>\u5bf9\u534f\u65b9\u5dee\u77e9\u9635\u8fdb\u884c\u7279\u5f81\u503c\u5206\u89e3(Eigen decomposition),\u5f97\u5230\u7279\u5f81\u503c(eigenvalues)\u548c\u7279\u5f81\u5411\u91cf 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\u25b3X=\u03b11\u03bb1v1+\u03b12\u03bb2v2+\u03b13\u03bb3v3 \u5176\u4e2d\uff0c\u03bb_i\u662f\u7279\u5f81\u503c\uff0cv_i \u662f\u5bf9\u5e94\u7684\u7279\u5f81\u5411\u91cf\uff0c\u03b1_i\u662f\u6296\u52a8\u7cfb\u6570\u3002<br><strong>6.\u8c03\u6574\u56fe\u50cf\u7684\u50cf\u7d20\u503c<\/strong> \u901a\u8fc7\u5c06\u6296\u52a8\u751f\u6210\u7684\u503c\u25b3x\u52a0\u56de\u5230\u6bcf\u4e2a\u50cf\u7d20\u7684RGB\u503c\u4e0a\uff0c\u6765\u751f\u6210\u65b0\u7684\u56fe\u50cf\u3002\u5373\uff1a Xnew = X+\u0394X \u8fd9\u4e2a\u64cd\u4f5c\u4f1a\u4fee\u6539\u6bcf\u4e2a\u50cf\u7d20\u7684RGB\u503c\uff0c\u5bfc\u81f4\u989c\u8272\u4fe1\u606f\u7684\u7ec6\u5fae\u6539\u53d8\u3002<br><strong>7.\u5c06\u50cf\u7d20\u6570\u636e\u91cd\u65b0\u8f6c\u6362\u4e3a\u56fe\u50cf\u683c\u5f0f<\/strong> 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