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\u89c6\u9891\u611f\u77e5\u9886\u57df<\/p>\n<p>\u901a\u8fc7\u56fe\u50cf\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u6280\u672f\uff0c\u53ef\u4ee5\u8d77\u5230\u589e\u5f3a\u89c6\u9891\u753b\u8d28\u3001\u6539\u5584\u89c6\u9891\u7684\u8d28\u91cf\uff0c\u63d0\u5347\u7528\u6237\u7684\u89c6\u89c9\u4f53\u9a8c\u7684\u4f5c\u7528\u3002<\/p>\n<h3>3. \u7814\u7a76\u8fdb\u5c55<\/h3>\n<p>\u6309\u7167\u65f6\u95f4\u548c\u6548\u679c\u8fdb\u884c\u5206\u7c7b\uff0c\u53ef\u4ee5\u5c06\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u7b97\u6cd5\u5206\u4e3a\u4f20\u7edf\u7b97\u6cd5\u548c\u6df1\u5ea6\u5b66\u4e60\u7b97\u6cd5\u4e24\u7c7b\u3002<\/p>\n<h4>3.1 \u4f20\u7edf\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u7b97\u6cd5<\/h4>\n<p>\u4f20\u7edf\u7684\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u7b97\u6cd5\u4e3b\u8981\u4f9d\u9760\u57fa\u672c\u7684\u6570\u5b57\u56fe\u50cf\u5904\u7406\u6280\u672f\u8fdb\u884c\u91cd\u5efa\uff0c\u5e38\u89c1\u7684\u6709\u5982\u4e0b\u51e0\u7c7b\uff1a<\/p>\n<p>\uff081\uff09 \u57fa\u4e8e\u63d2\u503c\u7684\u8d85\u5206\u8fa8\u7387\u91cd\u5efa<\/p>\n<p>\u57fa\u4e8e\u63d2\u503c\u7684\u65b9\u6cd5\u5c06\u56fe\u50cf\u4e0a\u6bcf\u4e2a\u50cf\u7d20\u90fd\u770b\u505a\u662f\u56fe\u50cf\u5e73\u9762\u4e0a\u7684\u4e00\u4e2a\u70b9\uff0c\u90a3\u4e48\u5bf9\u8d85\u5206\u8fa8\u7387\u56fe\u50cf\u7684\u4f30\u8ba1\u53ef\u4ee5\u770b\u505a\u662f\u5229\u7528\u5df2\u77e5\u7684\u50cf\u7d20\u4fe1\u606f\u4e3a\u5e73\u9762\u4e0a\u672a\u77e5\u7684\u50cf\u7d20\u4fe1\u606f\u8fdb\u884c\u62df\u5408\u7684\u8fc7\u7a0b\uff0c\u8fd9\u901a\u5e38\u7531\u4e00\u4e2a\u9884\u5b9a\u4e49\u7684\u53d8\u6362\u51fd\u6570\u6216\u8005\u63d2\u503c\u6838\u6765\u5b8c\u6210\u3002\u57fa\u4e8e\u63d2\u503c\u7684\u65b9\u6cd5\u8ba1\u7b97\u7b80\u5355\u3001\u6613\u4e8e\u7406\u89e3\uff0c\u4f46\u662f\u4e5f\u5b58\u5728\u7740\u4e00\u4e9b\u660e\u663e\u7684\u7f3a\u9677\u3002<\/p>\n<p>\u9996\u5148\uff0c\u5b83\u5047\u8bbe\u50cf\u7d20\u7070\u5ea6\u503c\u7684\u53d8\u5316\u662f\u4e00\u4e2a\u8fde\u7eed\u7684\u3001\u5e73\u6ed1\u7684\u8fc7\u7a0b\uff0c\u4f46\u5b9e\u9645\u4e0a\u8fd9\u79cd\u5047\u8bbe\u5e76\u4e0d\u5b8c\u5168\u6210\u7acb\u3002\u5176\u6b21\uff0c\u5728\u91cd\u5efa\u8fc7\u7a0b\u4e2d\uff0c\u4ec5\u6839\u636e\u4e00\u4e2a\u4e8b\u5148\u5b9a\u4e49\u7684\u8f6c\u6362\u51fd\u6570\u6765\u8ba1\u7b97\u8d85\u5206\u8fa8\u7387\u56fe\u50cf\uff0c\u4e0d\u8003\u8651\u56fe\u50cf\u7684\u964d\u8d28\u9000\u5316\u6a21\u578b\uff0c\u5f80\u5f80\u4f1a\u5bfc\u81f4\u590d\u539f\u51fa\u7684\u56fe\u50cf\u51fa\u73b0\u6a21\u7cca\u3001\u952f\u9f7f\u7b49\u73b0\u8c61\u3002\u5e38\u89c1\u7684\u57fa\u4e8e\u63d2\u503c\u7684\u65b9\u6cd5\u5305\u62ec\u6700\u8fd1\u90bb\u63d2\u503c\u6cd5\u3001\u53cc\u7ebf\u6027\u63d2\u503c\u6cd5\u548c\u53cc\u7acb\u65b9\u63d2\u503c\u6cd5\u7b49\u3002<\/p>\n<p>\uff082\uff09 \u57fa\u4e8e\u9000\u5316\u6a21\u578b\u7684\u8d85\u5206\u8fa8\u7387\u91cd\u5efa<\/p>\n<p>\u6b64\u7c7b\u65b9\u6cd5\u4ece\u56fe\u50cf\u7684\u964d\u8d28\u9000\u5316\u6a21\u578b\u51fa\u53d1\uff0c\u5047\u5b9a\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\u662f\u7ecf\u8fc7\u4e86\u9002\u5f53\u7684\u8fd0\u52a8\u53d8\u6362\u3001\u6a21\u7cca\u53ca\u566a\u58f0\u624d\u5f97\u5230\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u3002\u8fd9\u79cd\u65b9\u6cd5\u901a\u8fc7\u63d0\u53d6\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u4e2d\u7684\u5173\u952e\u4fe1\u606f\uff0c\u5e76\u7ed3\u5408\u5bf9\u672a\u77e5\u7684\u8d85\u5206\u8fa8\u7387\u56fe\u50cf\u7684\u5148\u9a8c\u77e5\u8bc6\u6765\u7ea6\u675f\u8d85\u5206\u8fa8\u7387\u56fe\u50cf\u7684\u751f\u6210\u3002\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\u8fed\u4ee3\u53cd\u6295\u5f71\u6cd5\u3001\u51f8\u96c6\u6295\u5f71\u6cd5\u548c\u6700\u5927\u540e\u9a8c\u6982\u7387\u6cd5\u7b49\u3002<\/p>\n<p>\uff083\uff09 \u57fa\u4e8e\u5b66\u4e60\u7684\u8d85\u5206\u8fa8\u7387\u91cd\u5efa<\/p>\n<p>\u57fa\u4e8e\u5b66\u4e60\u7684\u65b9\u6cd5\u5219\u662f\u5229\u7528\u5927\u91cf\u7684\u8bad\u7ec3\u6570\u636e\uff0c\u4ece\u4e2d\u5b66\u4e60\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u548c\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\u4e4b\u95f4\u67d0\u79cd\u5bf9\u5e94\u5173\u7cfb\uff0c\u7136\u540e\u6839\u636e\u5b66\u4e60\u5230\u7684\u6620\u5c04\u5173\u7cfb\u6765\u9884\u6d4b\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u6240\u5bf9\u5e94\u7684\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\uff0c\u4ece\u800c\u5b9e\u73b0\u56fe\u50cf\u7684\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u8fc7\u7a0b\u3002\u5e38\u89c1\u7684\u57fa\u4e8e\u5b66\u4e60\u7684\u65b9\u6cd5\u5305\u62ec\u6d41\u5f62\u5b66\u4e60\u3001\u7a00\u758f\u7f16\u7801\u65b9\u6cd5\u3002<\/p>\n<h4>3.2 \u57fa\u4e8e\u6df1\u5ea6\u5b66\u4e60\u7684\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u7b97\u6cd5<\/h4>\n<p>\u673a\u5668\u5b66\u4e60\u662f\u4eba\u5de5\u667a\u80fd\u7684\u4e00\u4e2a\u91cd\u8981\u5206\u652f\uff0c\u800c\u6df1\u5ea6\u5b66\u4e60\u5219\u662f\u673a\u5668\u5b66\u4e60\u4e2d\u6700\u4e3b\u8981\u7684\u4e00\u4e2a\u7b97\u6cd5\uff0c\u5176\u65e8\u5728\u901a\u8fc7\u591a\u5c42\u975e\u7ebf\u6027\u53d8\u6362\uff0c\u63d0\u53d6\u6570\u636e\u7684\u9ad8\u5c42\u62bd\u8c61\u7279\u5f81\uff0c\u5b66\u4e60\u6570\u636e\u6f5c\u5728\u7684\u5206\u5e03\u89c4\u5f8b\uff0c\u4ece\u800c\u83b7\u53d6\u5bf9\u65b0\u6570\u636e\u505a\u51fa\u5408\u7406\u7684\u5224\u65ad\u6216\u8005\u9884\u6d4b\u7684\u80fd\u529b\u3002\u968f\u7740\u4eba\u5de5\u667a\u80fd\u548c\u8ba1\u7b97\u673a\u786c\u4ef6\u7684\u4e0d\u65ad\u53d1\u5c55\uff0cHinton\u7b49\u4eba\u57282006\u5e74\u63d0\u51fa\u4e86\u6df1\u5ea6\u5b66\u4e60\u8fd9\u4e00\u6982\u5ff5\uff0c\u5176\u65e8\u5728\u5229\u7528\u591a\u5c42\u975e\u7ebf\u6027\u53d8\u6362\u63d0\u53d6\u6570\u636e\u7684\u9ad8\u5c42\u62bd\u8c61\u7279\u5f81\u3002\u51ed\u501f\u7740\u5f3a\u5927\u7684\u62df\u5408\u80fd\u529b\uff0c\u6df1\u5ea6\u5b66\u4e60\u5f00\u59cb\u5728\u5404\u4e2a\u9886\u57df\u5d2d\u9732\u5934\u89d2\uff0c\u7279\u522b\u662f\u5728\u56fe\u50cf\u4e0e\u89c6\u89c9\u9886\u57df\uff0c\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u5927\u653e\u5f02\uff0c\u8fd9\u4e5f\u4f7f\u5f97\u8d8a\u6765\u8d8a\u591a\u7684\u7814\u7a76\u8005\u5f00\u59cb\u5c1d\u8bd5\u5c06\u6df1\u5ea6\u5b66\u4e60\u5f15\u5165\u5230\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u9886\u57df\u3002<\/p>\n<p>2014\u5e74\uff0cDong\u7b49\u4eba\u9996\u6b21\u5c06\u6df1\u5ea6\u5b66\u4e60\u5e94\u7528\u5230\u56fe\u50cf\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u9886\u57df\uff0c\u4ed6\u4eec\u4f7f\u7528\u4e00\u4e2a\u4e09\u5c42\u7684\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u5b66\u4e60\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u4e0e\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\u4e4b\u95f4\u6620\u5c04\u5173\u7cfb\uff0c\u81ea\u6b64\uff0c\u5728\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u7387\u9886\u57df\u6380\u8d77\u4e86\u6df1\u5ea6\u5b66\u4e60\u7684\u6d6a\u6f6e\uff0c\u4ed6\u4eec\u7684\u8bbe\u8ba1\u7684\u7f51\u7edc\u6a21\u578b\u547d\u540d\u4e3aSRCNN(Super-Resolution Convolutional Neural Network)\u3002<\/p>\n<p>SRCNN\u91c7\u7528\u4e86\u63d2\u503c\u7684\u65b9\u5f0f\u5148\u5c06\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u8fdb\u884c\u653e\u5927\uff0c\u518d\u901a\u8fc7\u6a21\u578b\u8fdb\u884c\u590d\u539f\u3002Shi\u7b49\u4eba\u5219\u8ba4\u4e3a\u8fd9\u79cd\u9884\u5148\u91c7\u7528\u8fd1\u90bb\u63d2\u503c\u7684\u65b9\u5f0f\u672c\u8eab\u5df2\u7ecf\u5f71\u54cd\u4e86\u6027\u80fd\uff0c\u5982\u679c\u4ece\u6e90\u5934\u51fa\u53d1\uff0c\u5e94\u8be5\u4ece\u6837\u672c\u4e2d\u53bb\u5b66\u4e60\u5982\u4f55\u8fdb\u884c\u653e\u5927\uff0c\u4ed6\u4eec\u57fa\u4e8e\u8fd9\u4e2a\u539f\u7406\u63d0\u51fa\u4e86ESPCN (Real-Time Single Image and Video Super-Resolution Using an Efficient Sub-Pixel Convolutional Neural Network)\u7b97\u6cd5\u3002\u8be5\u7b97\u6cd5\u5728\u5c06\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u9001\u5165\u795e\u7ecf\u7f51\u7edc\u4e4b\u524d\uff0c\u65e0\u9700\u5bf9\u7ed9\u5b9a\u7684\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u8fdb\u884c\u4e00\u4e2a\u4e0a\u91c7\u6837\u8fc7\u7a0b\uff0c\u800c\u662f\u5f15\u5165\u4e00\u4e2a\u4e9a\u50cf\u7d20\u5377\u79ef\u5c42\uff08Sub-pixel convolution layer\uff09\uff0c\u6765\u95f4\u63a5\u5b9e\u73b0\u56fe\u50cf\u7684\u653e\u5927\u8fc7\u7a0b\u3002\u8fd9\u79cd\u505a\u6cd5\u6781\u5927\u964d\u4f4e\u4e86SRCNN\u7684\u8ba1\u7b97\u91cf\uff0c\u63d0\u9ad8\u4e86\u91cd\u5efa\u6548\u7387\u3002<\/p>\n<p>\u8fd9\u91cc\u9700\u8981\u6ce8\u610f\u5230\uff0c\u4e0d\u7ba1\u662fSRCNN\u8fd8\u662fESPCN\uff0c\u5b83\u4eec\u5747\u4f7f\u7528\u4e86MSE\u4f5c\u4e3a\u76ee\u6807\u51fd\u6570\u6765\u8bad\u7ec3\u6a21\u578b\u30022017\u5e74\uff0cChristian Ledig\u7b49\u4eba\u4ece\u7167\u7247\u611f\u77e5\u89d2\u5ea6\u51fa\u53d1\uff0c\u901a\u8fc7\u5bf9\u6297\u7f51\u7edc\u6765\u8fdb\u884c\u8d85\u5206\u91cd\u5efa\uff08\u8bba\u6587\u9898\u76ee\uff1aPhoto-Realistic Single Image Super-Resolution Using a Generative Adversarial Network\uff09\u3002\u4ed6\u4eec\u8ba4\u4e3a\uff0c\u5927\u90e8\u5206\u6df1\u5ea6\u5b66\u4e60\u8d85\u5206\u7b97\u6cd5\u91c7\u7528\u7684MSE\u635f\u5931\u51fd\u6570\u4f1a\u5bfc\u81f4\u91cd\u5efa\u7684\u56fe\u50cf\u8fc7\u4e8e\u5e73\u6ed1\uff0c\u7f3a\u4e4f\u611f\u5b98\u4e0a\u7684\u7167\u7247\u771f\u5b9e\u611f\u3002\u4ed6\u4eec\u6539\u7528\u751f\u6210\u5bf9\u6297\u7f51\u7edc\uff08Generative Adversarial Networks, GAN\uff09\u6765\u8fdb\u884c\u91cd\u5efa\uff0c\u5e76\u4e14\u5b9a\u4e49\u4e86\u65b0\u7684\u611f\u77e5\u76ee\u6807\u51fd\u6570\uff0c\u7b97\u6cd5\u88ab\u547d\u540d\u4e3aSRGAN\uff0c\u7531\u4e00\u4e2a\u751f\u6210\u5668\u548c\u4e00\u4e2a\u5224\u522b\u5668\u7ec4\u6210\u3002\u751f\u6210\u5668\u8d1f\u8d23\u5408\u6210\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\uff0c\u5224\u522b\u5668\u7528\u4e8e\u5224\u65ad\u7ed9\u5b9a\u7684\u56fe\u50cf\u662f\u6765\u81ea\u751f\u6210\u5668\u8fd8\u662f\u771f\u5b9e\u6837\u672c\u3002\u901a\u8fc7\u4e00\u4e2a\u535a\u5f08\u7684\u5bf9\u6297\u8fc7\u7a0b\uff0c\u4f7f\u5f97\u751f\u6210\u5668\u80fd\u591f\u5c06\u7ed9\u5b9a\u7684\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u91cd\u5efa\u4e3a\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\u3002\u5728SRGAN\u8fd9\u7bc7\u8bba\u6587\u4e2d\uff0c\u4f5c\u8005\u540c\u65f6\u63d0\u51fa\u4e86\u4e00\u4e2a\u5bf9\u6bd4\u7b97\u6cd5\uff0c\u540d\u4e3aSRResNet\u3002SRResNet\u4f9d\u7136\u91c7\u7528\u4e86MSE\u4f5c\u4e3a\u6700\u7ec8\u7684\u635f\u5931\u51fd\u6570\uff0c\u4e0e\u4ee5\u5f80\u4e0d\u540c\u7684\u662f\uff0cSRResNet\u91c7\u7528\u4e86\u8db3\u591f\u6df1\u7684\u6b8b\u5dee\u5377\u79ef\u7f51\u7edc\u6a21\u578b\uff0c\u76f8\u6bd4\u4e8e\u5176\u5b83\u7684\u6b8b\u5dee\u5b66\u4e60\u91cd\u5efa\u7b97\u6cd5\uff0cSRResNet\u672c\u8eab\u4e5f\u80fd\u591f\u53d6\u5f97\u8f83\u597d\u7684\u6548\u679c\u3002<\/p>\n<p>\u7531\u4e8eSRGAN\u8fd9\u7bc7\u8bba\u6587\u540c\u65f6\u63d0\u51fa\u4e86\u4e24\u79cd\u5f53\u524d\u4e3b\u6d41\u6a21\u5f0f\u7684\u6df1\u5ea6\u5b66\u4e60\u8d85\u5206\u91cd\u5efa\u7b97\u6cd5\uff0c\u56e0\u6b64\uff0c\u63a5\u4e0b\u6765\u5c06\u4ee5SRGAN\u8fd9\u7bc7\u8bba\u6587\u4e3a\u4e3b\u7ebf\uff0c\u4f9d\u6b21\u8bb2\u89e3SRResNet\u548cSRGAN\u7b97\u6cd5\u5b9e\u73b0\u539f\u7406\uff0c\u5e76\u91c7\u7528Pytorch\u6df1\u5ea6\u5b66\u4e60\u6846\u67b6\u5b8c\u6210\u4e0a\u8ff0\u4e24\u4e2a\u7b97\u6cd5\u7684\u590d\u73b0\u3002<\/p>\n<h2>\u4e8c.  SRResNet\u7b97\u6cd5\u539f\u7406\u548cPytorch\u5b9e\u73b0<\/h2>\n<h3>1. \u8d85\u5206\u91cd\u5efa\u57fa\u672c\u5904\u7406\u6d41\u7a0b<\/h3>\n<p>\u6700\u65e9\u7684\u91c7\u7528\u6df1\u5ea6\u5b66\u4e60\u8fdb\u884c\u8d85\u5206\u91cd\u5efa\u7684\u7b97\u6cd5\u662fSRCNN\u7b97\u6cd5\uff0c\u5176\u539f\u7406\u5f88\u7b80\u5355\uff0c\u5bf9\u4e8e\u8f93\u5165\u7684\u4e00\u5f20\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\uff0cSRCNN\u9996\u5148\u4f7f\u7528\u53cc\u7acb\u65b9\u63d2\u503c\u5c06\u5176\u653e\u5927\u81f3\u76ee\u6807\u5c3a\u5bf8\uff0c\u7136\u540e\u5229\u7528\u4e00\u4e2a\u4e09\u5c42\u7684\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u53bb\u62df\u5408\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u4e0e\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\u4e4b\u95f4\u7684\u975e\u7ebf\u6027\u6620\u5c04\uff0c\u6700\u540e\u5c06\u7f51\u7edc\u8f93\u51fa\u7684\u7ed3\u679c\u4f5c\u4e3a\u91cd\u5efa\u540e\u7684\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\u3002\u5c3d\u7ba1\u539f\u7406\u7b80\u5355\uff0c\u4f46\u662f\u4f9d\u6258\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u4ee5\u53ca\u5927\u6837\u672c\u6570\u636e\u7684\u5b66\u4e60\uff0c\u5728\u6027\u80fd\u4e0a\u8d85\u8fc7\u4e86\u5f53\u65f6\u4e00\u4f17\u4f20\u7edf\u7684\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\uff0c\u5f00\u542f\u4e86\u6df1\u5ea6\u5b66\u4e60\u5728\u8d85\u5206\u8fa8\u7387\u9886\u57df\u7684\u7814\u7a76\u5f81\u7a0b\u3002SRCNN\u7684\u7f51\u7edc\u7ed3\u6784\u5982\u56fe2\u6240\u793a\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/ogpx255gcu.png\" alt=\"img\" \/><\/p>\n<p>SRCNN\u4f5c\u4e3a\u65e9\u671f\u5f00\u521b\u6027\u7684\u7814\u7a76\u8bba\u6587\uff0c\u4e5f\u4e3a\u540e\u9762\u7684\u5de5\u4f5c\u5960\u5b9a\u4e86\u5904\u7406\u8d85\u5206\u95ee\u9898\u7684\u57fa\u672c\u6d41\u7a0b\uff1a<\/p>\n<p>(1) \u5bfb\u627e\u5927\u91cf\u771f\u5b9e\u573a\u666f\u4e0b\u56fe\u50cf\u6837\u672c\uff1b<\/p>\n<p>(2) \u5bf9\u6bcf\u5f20\u56fe\u50cf\u8fdb\u884c\u4e0b\u91c7\u6837\u5904\u7406\u964d\u4f4e\u56fe\u50cf\u5206\u8fa8\u7387\uff0c\u4e00\u822c\u67092\u500d\u4e0b\u91c7\u6837\u30013\u500d\u4e0b\u91c7\u6837\u30014\u500d\u4e0b\u91c7\u6837\u7b49\u3002\u5982\u679c\u662f2\u500d\u4e0b\u91c7\u6837\uff0c\u5219\u56fe\u50cf\u957f\u5bbd\u5747\u53d8\u6210\u539f\u6765\u76841\/2.\u3002\u4e0b\u91c7\u6837\u524d\u7684\u56fe\u50cf\u4f5c\u4e3a\u9ad8\u5206\u8fa8\u7387\u56fe\u50cfH\uff0c\u4e0b\u91c7\u6837\u540e\u7684\u56fe\u50cf\u4f5c\u4e3a\u4f4e\u5206\u8fa8\u7387\u56fe\u50cfL\uff0cL\u548cH\u6784\u6210\u4e00\u4e2a\u6709\u6548\u7684\u56fe\u50cf\u5bf9\u7528\u4e8e\u540e\u671f\u6a21\u578b\u8bad\u7ec3\uff1b<\/p>\n<p>(3) \u8bad\u7ec3\u6a21\u578b\u65f6\uff0c\u5bf9\u4f4e\u5206\u8fa8\u7387\u56fe\u50cfL\u8fdb\u884c\u653e\u5927\u8fd8\u539f\u4e3a\u9ad8\u5206\u8fa8\u7387\u56fe\u50cfSR\uff0c\u7136\u540e\u4e0e\u539f\u59cb\u7684\u9ad8\u5206\u8fa8\u7387\u56fe\u50cfH\u8fdb\u884c\u6bd4\u8f83\uff0c\u5176\u5dee\u5f02\u7528\u6765\u8c03\u6574\u6a21\u578b\u7684\u53c2\u6570\uff0c\u901a\u8fc7\u8fed\u4ee3\u8bad\u7ec3\uff0c\u4f7f\u5f97\u5dee\u5f02\u6700\u5c0f\u3002\u5b9e\u9645\u60c5\u51b5\u4e0b\uff0c\u7814\u7a76\u5b66\u8005\u63d0\u51fa\u4e86\u591a\u79cd\u635f\u5931\u51fd\u6570\u7528\u6765\u5b9a\u4e49\u8fd9\u79cd\u5dee\u5f02\uff0c\u4e0d\u540c\u7684\u5b9a\u4e49\u65b9\u5f0f\u4e5f\u4f1a\u76f4\u63a5\u5f71\u54cd\u6700\u7ec8\u7684\u91cd\u5efa\u6548\u679c\uff1b<\/p>\n<p>(4) \u8bad\u7ec3\u5b8c\u7684\u6a21\u578b\u53ef\u4ee5\u7528\u6765\u5bf9\u65b0\u7684\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\u8fdb\u884c\u91cd\u5efa\uff0c\u5f97\u5230\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\u3002<\/p>\n<p>\u4ece\u5b9e\u9645\u64cd\u4f5c\u4e0a\u6765\u770b\uff0c\u6574\u4e2a\u8d85\u5206\u91cd\u5efa\u5206\u4e3a\u4e24\u6b65\uff1a\u56fe\u50cf\u653e\u5927\u548c\u4fee\u590d\u3002\u6240\u8c13\u653e\u5927\u5c31\u662f\u91c7\u7528\u67d0\u79cd\u65b9\u5f0f\uff08SRCNN\u91c7\u7528\u4e86\u63d2\u503c\u4e0a\u91c7\u6837\uff09\u5c06\u56fe\u50cf\u653e\u5927\u5230\u6307\u5b9a\u500d\u6570\uff0c\u7136\u540e\u518d\u6839\u636e\u56fe\u50cf\u4fee\u590d\u539f\u7406\uff0c\u5c06\u653e\u5927\u540e\u7684\u56fe\u50cf\u6620\u5c04\u4e3a\u76ee\u6807\u56fe\u50cf\u3002\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u4e0d\u4ec5\u80fd\u591f\u653e\u5927\u56fe\u50cf\u5c3a\u5bf8\uff0c\u5728\u67d0\u79cd\u610f\u4e49\u4e0a\u5177\u5907\u4e86\u56fe\u50cf\u4fee\u590d\u7684\u4f5c\u7528\uff0c\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u524a\u5f31\u56fe\u50cf\u4e2d\u7684\u566a\u58f0\u3001\u6a21\u7cca\u7b49\u3002\u56e0\u6b64\uff0c\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u7684\u5f88\u591a\u7b97\u6cd5\u4e5f\u88ab\u5b66\u8005\u8fc1\u79fb\u5230\u56fe\u50cf\u4fee\u590d\u9886\u57df\u4e2d\uff0c\u5b8c\u6210\u4e00\u4e9b\u8bf8\u5982jpep\u538b\u7f29\u53bb\u71e5\u3001\u53bb\u6a21\u7cca\u7b49\u4efb\u52a1\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/0sjrh4dd7w.png\" alt=\"img\" \/><\/p>\n<p>\u7b80\u5316\u7248\u7684\u8d85\u5206\u91cd\u5efa\u5904\u7406\u6d41\u7a0b\u5982\u56fe3\u6240\u793a\uff0c\u5f53\u7136\uff0c\u56fe\u50cf\u653e\u5927\u548c\u4fee\u590d\u4e24\u4e2a\u6b65\u9aa4\u7684\u987a\u5e8f\u53ef\u4ee5\u4efb\u610f\u4e92\u6362\u3002<\/p>\n<h3>2. \u6784\u5efa\u6df1\u5ea6\u7f51\u7edc\u6a21\u578b\u63d0\u9ad8\u8d85\u5206\u91cd\u5efa\u6027\u80fd<\/h3>\n<p>SRCNN\u53ea\u91c7\u7528\u4e863\u4e2a\u5377\u79ef\u5c42\u6765\u5b9e\u73b0\u8d85\u5206\u91cd\u5efa\uff0c\u6709\u6587\u732e\u6307\u51fa\u5982\u679c\u91c7\u7528\u66f4\u6df1\u7684\u7f51\u7edc\u7ed3\u6784\u6a21\u578b\uff0c\u90a3\u4e48\u53ef\u4ee5\u91cd\u5efa\u51fa\u66f4\u9ad8\u8d28\u91cf\u7684\u56fe\u50cf\uff0c\u56e0\u4e3a\u66f4\u6df1\u7684\u7f51\u7edc\u6a21\u578b\u53ef\u4ee5\u62bd\u53d6\u51fa\u66f4\u9ad8\u7ea7\u7684\u56fe\u50cf\u7279\u5f81\uff0c\u8fd9\u79cd\u6df1\u5c42\u6a21\u578b\u5bf9\u56fe\u50cf\u53ef\u4ee5\u66f4\u597d\u7684\u8fdb\u884c\u8868\u8fbe\u3002\u5728SRCNN\u4e4b\u540e\uff0c\u6709\u4e0d\u5c11\u7814\u7a76\u4eba\u5458\u5c1d\u8bd5\u52a0\u6df1\u7f51\u7edc\u7ed3\u6784\u4ee5\u671f\u53d6\u5f97\u66f4\u4f73\u7684\u91cd\u5efa\u6027\u80fd\uff0c\u4f46\u662f\u8d8a\u6df1\u7684\u6a21\u578b\u8d8a\u4e0d\u80fd\u5f88\u597d\u7684\u6536\u655b\uff0c\u65e0\u6cd5\u5f97\u5230\u671f\u671b\u7684\u7ed3\u679c\u3002\u90e8\u5206\u7814\u7a76\u5b66\u8005\u901a\u8fc7\u8fc1\u79fb\u5b66\u4e60\u6765\u9010\u6b65\u7684\u589e\u52a0\u6a21\u578b\u6df1\u5ea6\uff0c\u4f46\u8fd9\u79cd\u65b9\u5f0f\u52a0\u6df1\u7a0b\u5ea6\u6709\u9650\u3002\u56e0\u6b64\uff0c\u4e9f\u9700\u4e00\u79cd\u6709\u6548\u7684\u6a21\u578b\uff0c\u4f7f\u5f97\u6784\u5efa\u6df1\u5c42\u7f51\u7edc\u6a21\u578b\u53d8\u5f97\u5bb9\u6613\u5e76\u4e14\u6709\u6548\u3002\u8fd9\u4e2a\u95ee\u9898\u76f4\u52302015\u5e74\u7531\u4f55\u51ef\u660e\u56e2\u961f\u63d0\u51faResNet\u7f51\u7edc\u624d\u5f97\u4ee5\u6709\u6548\u89e3\u51b3\u3002<\/p>\n<p>ResNet\u4e2d\u6587\u540d\u5b57\u53eb\u4f5c\u6df1\u5ea6\u6b8b\u5dee\u7f51\u7edc\uff0c\u4e3b\u8981\u4f5c\u7528\u662f\u56fe\u50cf\u5206\u7c7b\u3002\u73b0\u5728\u5728\u56fe\u50cf\u5206\u5272\u3001\u76ee\u6807\u68c0\u6d4b\u7b49\u9886\u57df\u90fd\u6709\u5f88\u5e7f\u6cdb\u7684\u8fd0\u7528\u3002ResNet\u5728\u4f20\u7edf\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u4e2d\u52a0\u5165\u4e86\u6b8b\u5dee\u5b66\u4e60\uff08residual learning\uff09\uff0c\u89e3\u51b3\u4e86\u6df1\u5c42\u7f51\u7edc\u4e2d\u68af\u5ea6\u5f25\u6563\u548c\u7cbe\u5ea6\u4e0b\u964d\uff08\u8bad\u7ec3\u96c6\uff09\u7684\u95ee\u9898\uff0c\u4f7f\u7f51\u7edc\u80fd\u591f\u8d8a\u6765\u8d8a\u6df1\uff0c\u65e2\u4fdd\u8bc1\u4e86\u7cbe\u5ea6\uff0c\u53c8\u63a7\u5236\u4e86\u901f\u5ea6\u3002<\/p>\n<p>ResNet\u53ef\u4ee5\u76f4\u89c2\u7684\u6765\u7406\u89e3\u5176\u80cc\u540e\u7684\u610f\u4e49\u3002\u4ee5\u5f80\u7684\u795e\u7ecf\u7f51\u7edc\u6a21\u578b\u6bcf\u4e00\u5c42\u5b66\u4e60\u7684\u662f\u4e00\u4e2a y = f(x) \u7684\u6620\u5c04\uff0c\u53ef\u4ee5\u60f3\u8c61\u7684\u5230\uff0c\u968f\u7740\u5c42\u6570\u4e0d\u65ad\u52a0\u6df1\uff0c\u6bcf\u4e2a\u51fd\u6570\u6620\u5c04\u51fa\u6765\u7684y\u8bef\u5dee\u9010\u6e10\u7d2f\u8ba1\uff0c\u8bef\u5dee\u8d8a\u6765\u8d8a\u5927\uff0c\u68af\u5ea6\u5728\u53cd\u5411\u4f20\u64ad\u7684\u8fc7\u7a0b\u4e2d\u8d8a\u6765\u8d8a\u53d1\u6563\u3002\u8fd9\u65f6\u5019\uff0c\u5982\u679c\u6539\u53d8\u4e00\u4e0b\u6bcf\u5c42\u7684\u6620\u5c04\u5173\u7cfb\uff0c\u6539\u4e3a y = f(x) + x,\u4e5f\u5c31\u662f\u5728\u6bcf\u5c42\u7684\u7ed3\u675f\u52a0\u4e0a\u539f\u59cb\u8f93\u5165\uff0c\u6b64\u65f6\u8f93\u5165\u662fx\uff0c\u8f93\u51fa\u662ff(x)+x\uff0c\u90a3\u4e48\u81ea\u7136\u7684f(x)\u8d8b\u5411\u4e8e0\uff0c\u6216\u8005\u8bf4f(x)\u662f\u4e00\u4e2a\u76f8\u5bf9\u8f83\u5c0f\u7684\u503c\uff0c\u8fd9\u6837\uff0c\u5373\u4fbf\u5c42\u6570\u4e0d\u65ad\u52a0\u5927\uff0c\u8fd9\u4e2a\u8bef\u5deef(x)\u4f9d\u7136\u63a7\u5236\u5728\u4e00\u4e2a\u8f83\u5c0f\u503c\uff0c\u6574\u4e2a\u6a21\u578b\u8bad\u7ec3\u65f6\u4e0d\u5bb9\u6613\u53d1\u6563\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/kyopxkyrmv.png\" alt=\"img\" \/><\/p>\n<p>\u4e0a\u56fe\u4e3a\u6b8b\u5dee\u7f51\u7edc\u7684\u539f\u7406\u56fe\uff0c\u53ef\u4ee5\u770b\u5230\u4e00\u6839\u7ebf\u76f4\u63a5\u8de8\u8d8a\u4e24\u5c42\u7f51\u7edc\uff08\u8df3\u94fe\uff09\uff0c\u5c06\u539f\u59cb\u6570\u636ex\u5e26\u5165\u5230\u4e86\u8f93\u51fa\u4e2d\uff0c\u6b64\u65f6F(x)\u9884\u6d4b\u7684\u662f\u4e00\u4e2a\u5dee\u503c\u3002\u6709\u4e86\u6b8b\u5dee\u5b66\u4e60\u8fd9\u79cd\u5f3a\u5927\u7684\u7f51\u7edc\u7ed3\u6784\uff0c\u5c31\u53ef\u4ee5\u6309\u7167SRCNN\u7684\u601d\u8def\u6784\u5efa\u7528\u4e8e\u8d85\u5206\u91cd\u5efa\u7684\u6df1\u5ea6\u795e\u7ecf\u7f51\u7edc\u3002SRResNet\u7b97\u6cd5\u4e3b\u5e72\u90e8\u5206\u5c31\u91c7\u7528\u4e86\u8fd9\u79cd\u7f51\u7edc\u7ed3\u6784\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/43zxh9m57i.png\" alt=\"img\" \/><\/p>\n<p>\u4e0a\u8ff0\u6a21\u578b\u91c7\u7528\u4e86\u591a\u4e2a\u6df1\u5ea6\u6b8b\u5dee\u6a21\u5757\u8fdb\u884c\u56fe\u50cf\u7684\u7279\u5f81\u62bd\u53d6\uff0c\u591a\u6b21\u8fd0\u7528\u8df3\u94fe\u6280\u672f\u5c06\u8f93\u5165\u8fde\u63a5\u5230\u7f51\u7edc\u8f93\u51fa\uff0c\u8fd9\u79cd\u7ed3\u6784\u80fd\u591f\u4fdd\u8bc1\u6574\u4e2a\u7f51\u7edc\u7684\u7a33\u5b9a\u6027\u3002\u7531\u4e8e\u91c7\u7528\u4e86\u6df1\u5ea6\u6a21\u578b\uff0c\u76f8\u6bd4\u6d45\u5c42\u6a21\u578b\u80fd\u591f\u66f4\u6709\u6548\u7684\u6316\u6398\u56fe\u50cf\u7279\u5f81\uff0c\u5728\u6027\u80fd\u4e0a\u53ef\u4ee5\u8d85\u8d8a\u6d45\u5c42\u6a21\u578b\u7b97\u6cd5\uff08SRResNet\u4f7f\u7528\u4e8616\u4e2a\u6b8b\u5dee\u6a21\u5757\uff09\u3002\u6ce8\u610f\u5230\uff0c\u4e0a\u8ff0\u6a21\u578b\u6bcf\u5c42\u4ec5\u4ec5\u6539\u53d8\u4e86\u56fe\u50cf\u7684\u901a\u9053\u6570\uff0c\u5e76\u6ca1\u6709\u6539\u53d8\u56fe\u50cf\u7684\u5c3a\u5bf8\u5927\u5c0f\uff0c\u4ece\u8fd9\u4e2a\u610f\u4e49\u4e0a\u6765\u8bf4\u8fd9\u4e2a\u7f51\u7edc\u53ef\u4ee5\u8ba4\u4e3a\u662f\u524d\u9762\u63d0\u5230\u7684\u4fee\u590d\u6a21\u578b\u3002\u4e0b\u9762\u4f1a\u4ecb\u7ecd\u5982\u4f55\u5728\u8fd9\u4e2a\u6a21\u578b\u57fa\u7840\u4e0a\u518d\u589e\u52a0\u4e00\u4e2a\u5b50\u6a21\u5757\u7528\u6765\u653e\u5927\u56fe\u50cf\uff0c\u4ece\u800c\u6784\u5efa\u4e00\u4e2a\u5b8c\u6574\u7684\u8d85\u5206\u91cd\u5efa\u6a21\u578b\u3002<\/p>\n<h3>3.  \u57fa\u4e8e\u5b50\u50cf\u7d20\u5377\u79ef\u653e\u5927\u56fe\u50cf\u5c3a\u5bf8<\/h3>\n<p>\u5b50\u50cf\u7d20\u5377\u79ef\uff08Sub-pixel convolution\uff09\u662f\u4e00\u79cd\u5de7\u5999\u7684\u56fe\u50cf\u53ca\u7279\u5f81\u56fe\u653e\u5927\u65b9\u6cd5\uff0c\u53c8\u53eb\u505apixel shuffle\uff08\u50cf\u7d20\u6e05\u6d17\uff09\u3002\u5728\u6df1\u5ea6\u5b66\u4e60\u8d85\u5206\u8fa8\u7387\u91cd\u5efa\u4e2d\uff0c\u5e38\u89c1\u7684\u6269\u5c3a\u5ea6\u65b9\u6cd5\u6709\u76f4\u63a5\u4e0a\u91c7\u6837\uff0c\u53cc\u7ebf\u6027\u63d2\u503c\uff0c\u53cd\u5377\u79ef\u7b49\u7b49\u3002ESPCN\u7b97\u6cd5\u4e2d\u63d0\u51fa\u4e86\u4e00\u79cd\u8d85\u5206\u8fa8\u7387\u6269\u5c3a\u5ea6\u65b9\u6cd5\uff0c\u5373\u4e3a\u5b50\u50cf\u7d20\u5377\u79ef\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u540e\u7eed\u4e5f\u88ab\u5e94\u7528\u5728\u4e86SRResNet\u548cSRGAN\u7b97\u6cd5\u4e2d\u3002\u56e0\u6b64\uff0c\u8fd9\u91cc\u9700\u8981\u5148\u4ecb\u7ecd\u5b50\u50cf\u7d20\u5377\u79ef\u7684\u539f\u7406\u53ca\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n<p>\u91c7\u7528CNN\u5bf9\u7279\u5f81\u56fe\u8fdb\u884c\u653e\u5927\u4e00\u822c\u4f1a\u91c7\u7528deconvolution\u7b49\u65b9\u6cd5\uff0c\u8fd9\u79cd\u65b9\u6cd5\u901a\u5e38\u4f1a\u5e26\u5165\u8fc7\u591a\u4eba\u5de5\u56e0\u7d20\uff0c\u800c\u5b50\u50cf\u7d20\u5377\u79ef\u4f1a\u5927\u5927\u964d\u4f4e\u8fd9\u4e2a\u98ce\u9669\u3002\u56e0\u4e3a\u5b50\u50cf\u7d20\u5377\u79ef\u653e\u5927\u4f7f\u7528\u7684\u53c2\u6570\u662f\u9700\u8981\u5b66\u4e60\u7684\uff0c\u76f8\u6bd4\u90a3\u4e9b\u624b\u5de5\u8bbe\u5b9a\u7684\u65b9\u5f0f\uff0c\u8fd9\u79cd\u901a\u8fc7\u6837\u672c\u5b66\u4e60\u7684\u65b9\u5f0f\u5176\u653e\u5927\u6027\u80fd\u66f4\u52a0\u51c6\u786e\u3002<\/p>\n<p>\u5177\u4f53\u5b9e\u73b0\u539f\u7406\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/za2ktr0g3n.png\" alt=\"img\" \/><\/p>\n<p>\u4e0a\u56fe\u5f88\u76f4\u89c2\u5f97\u8868\u8fbe\u4e86\u5b50\u50cf\u7d20\u5377\u79ef\u7684\u6d41\u7a0b\u3002\u5047\u8bbe\uff0c\u5982\u679c\u60f3\u5bf9\u539f\u56fe\u653e\u59273\u500d\uff0c\u90a3\u4e48\u9700\u8981\u751f\u6210\u51fa3^2=9\u4e2a\u540c\u7b49\u5927\u5c0f\u7684\u7279\u5f81\u56fe\uff0c\u4e5f\u5c31\u662f\u901a\u9053\u6570\u6269\u5145\u4e869\u500d\uff08\u8fd9\u4e2a\u901a\u8fc7\u666e\u901a\u7684\u5377\u79ef\u64cd\u4f5c\u5373\u53ef\u5b9e\u73b0\uff09\u3002\u7136\u540e\u5c06\u4e5d\u4e2a\u540c\u7b49\u5927\u5c0f\u7684\u7279\u5f81\u56fe\u62fc\u6210\u4e00\u4e2a\u653e\u59273\u500d\u7684\u5927\u56fe\uff0c\u8fd9\u5c31\u662f\u5b50\u50cf\u7d20\u5377\u79ef\u64cd\u4f5c\u4e86\u3002<\/p>\n<p>\u5b9e\u73b0\u65f6\u5148\u5c06\u539f\u59cb\u7279\u5f81\u56fe\u901a\u8fc7\u5377\u79ef\u6269\u5c55\u5176\u901a\u9053\u6570\uff0c\u5982\u679c\u662f\u60f3\u653e\u59274\u500d\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u5c06\u901a\u9053\u6570\u6269\u5c55\u4e3a\u539f\u6765\u768416\u500d\u3002\u7279\u5f81\u56fe\u505a\u5b8c\u5377\u79ef\u540e\u518d\u6309\u7167\u7279\u5b9a\u7684\u683c\u5f0f\u8fdb\u884c\u6392\u5217\uff0c\u5373\u53ef\u5f97\u5230\u4e00\u5f20\u5927\u56fe\uff0c\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u50cf\u7d20\u6e05\u6d17\u3002\u901a\u8fc7\u50cf\u7d20\u6e05\u6d17\uff0c\u7279\u5f81\u7684\u901a\u9053\u6570\u91cd\u65b0\u6062\u590d\u4e3a\u539f\u6765\u8f93\u5165\u65f6\u7684\u5927\u5c0f\uff0c\u4f46\u662f\u6bcf\u4e2a\u7279\u5f81\u56fe\u7684\u5c3a\u5bf8\u53d8\u5927\u4e86\u3002\u8fd9\u91cc\u6ce8\u610f\u5230\u6bcf\u4e2a\u50cf\u7d20\u7684\u6269\u5c55\u65b9\u5f0f\u7531\u5bf9\u5e94\u7684\u5377\u79ef\u6765\u51b3\u5b9a\uff0c\u6b64\u65f6\u5377\u79ef\u7684\u53c2\u6570\u662f\u9700\u8981\u5b66\u4e60\u7684\uff0c\u56e0\u6b64\uff0c\u76f8\u6bd4\u4e8e\u624b\u5de5\u8bbe\u8ba1\u7684\u653e\u5927\u65b9\u5f0f\uff0c\u8fd9\u79cd\u57fa\u4e8e\u5b66\u4e60\u7684\u653e\u5927\u65b9\u5f0f\u80fd\u591f\u66f4\u597d\u7684\u53bb\u62df\u5408\u50cf\u7d20\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n<p>SRResNet\u6a21\u578b\u4e5f\u5229\u7528\u5b50\u50cf\u7d20\u5377\u79ef\u6765\u653e\u5927\u56fe\u50cf\uff0c\u5177\u4f53\u7684\uff0c\u5728\u56fe5\u6240\u793a\u6a21\u578b\u540e\u9762\u6dfb\u52a0\u4e24\u4e2a\u5b50\u50cf\u7d20\u5377\u79ef\u6a21\u5757\uff0c\u6bcf\u4e2a\u5b50\u50cf\u7d20\u5377\u79ef\u6a21\u5757\u4f7f\u5f97\u8f93\u5165\u56fe\u50cf\u653e\u59272\u500d\uff0c\u56e0\u6b64\u8fd9\u4e2a\u6a21\u578b\u6700\u7ec8\u53ef\u4ee5\u5c06\u56fe\u50cf\u653e\u59274\u500d\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/slb31kvmtp.png\" alt=\"img\" \/><\/p>\n<h3>4.  SRResNet\u7ed3\u6784\u5256\u6790<\/h3>\n<p>SRResNet\u4f7f\u7528\u6df1\u5ea6\u6b8b\u5dee\u7f51\u7edc\u6765\u6784\u5efa\u8d85\u5206\u91cd\u5efa\u6a21\u578b\uff0c\u4e3b\u8981\u5305\u542b\u4e24\u90e8\u5206\uff1a\u6df1\u5ea6\u6b8b\u5dee\u6a21\u578b\u3001\u5b50\u50cf\u7d20\u5377\u79ef\u6a21\u578b\u3002\u6df1\u5ea6\u6b8b\u5dee\u6a21\u578b\u7528\u6765\u8fdb\u884c\u9ad8\u6548\u7684\u7279\u5f81\u63d0\u53d6\uff0c\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u524a\u5f31\u56fe\u50cf\u566a\u70b9\u3002\u5b50\u50cf\u7d20\u5377\u79ef\u6a21\u578b\u4e3b\u8981\u7528\u6765\u653e\u5927\u56fe\u50cf\u5c3a\u5bf8\u3002\u5b8c\u6574\u7684SRResNet\u7f51\u7edc\u7ed3\u679c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/t8vxzrgm8e.png\" alt=\"img\" \/><\/p>\n<p>\u4e0a\u56fe\u4e2d\uff0ck\u8868\u793a\u5377\u79ef\u6838\u5927\u5c0f\uff0cn\u8868\u793a\u8f93\u51fa\u901a\u9053\u6570\uff0cs\u8868\u793a\u6b65\u957f\u3002\u9664\u4e86\u6df1\u5ea6\u6b8b\u5dee\u6a21\u5757\u548c\u5b50\u50cf\u7d20\u5377\u79ef\u6a21\u5757\u4ee5\u5916\uff0c\u5728\u6574\u4e2a\u6a21\u578b\u8f93\u5165\u548c\u8f93\u51fa\u90e8\u5206\u5747\u6dfb\u52a0\u4e86\u4e00\u4e2a\u5377\u79ef\u6a21\u5757\u7528\u4e8e\u6570\u636e\u8c03\u6574\u548c\u589e\u5f3a\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cSRResNet\u6a21\u578b\u4f7f\u7528MSE\u4f5c\u4e3a\u76ee\u6807\u51fd\u6570\uff0c\u4e5f\u5c31\u662f\u901a\u8fc7\u6a21\u578b\u8fd8\u539f\u51fa\u6765\u7684\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\u4e0e\u539f\u59cb\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\u7684\u5747\u65b9\u8bef\u5dee\uff0c\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/idb8il4aac.png\" alt=\"img\" \/><\/p>\n<p>MSE\u4e5f\u662f\u76ee\u524d\u5927\u90e8\u5206\u8d85\u5206\u91cd\u5efa\u7b97\u6cd5\u91c7\u7528\u7684\u76ee\u6807\u51fd\u6570\u3002\u540e\u9762\u6211\u4eec\u4f1a\u770b\u5230\uff0c\u4f7f\u7528\u8be5\u76ee\u6807\u51fd\u6570\u91cd\u5efa\u7684\u8d85\u5206\u56fe\u50cf\u5e76\u4e0d\u80fd\u5f88\u597d\u7684\u7b26\u5408\u4eba\u773c\u4e3b\u89c2\u611f\u53d7\uff0cSRGAN\u7b97\u6cd5\u6b63\u662f\u57fa\u4e8e\u6b64\u8fdb\u884c\u7684\u6539\u8fdb\u3002<\/p>\n<h3>5. Pytorch\u5b9e\u73b0<\/h3>\n<p>\u672c\u8282\u5c06\u4ece\u6e90\u7801\u51fa\u53d1\uff0c\u5b8c\u6210SRResNet\u7b97\u6cd5\u7684\u5efa\u6a21\u3001\u8bad\u7ec3\u548c\u63a8\u7406\u3002\u672c\u6587\u57fa\u4e8e\u6df1\u5ea6\u5b66\u4e60\u6846\u67b6Pytorch\u6765\u5b8c\u6210\u6240\u6709\u7684\u7f16\u7801\u5de5\u4f5c\uff0c\u8bfb\u8005\u5728\u9605\u8bfb\u672c\u6587\u4ee3\u7801\u524d\u9700\u8981\u719f\u6089Pytorch\u57fa\u672c\u64cd\u4f5c\u547d\u4ee4\u3002<\/p>\n<p><strong>\u4ee3\u7801\uff0c\u6a21\u578b\uff0c\u6570\u636e\u96c6\u83b7\u53d6\u65b9\u5f0f<\/strong><\/p>\n<p><strong>\u5173\u6ce8\u5fae\u4fe1\u516c\u4f17\u53f7 datayx  \u7136\u540e\u56de\u590d \u8d85\u5206 \u5373\u53ef\u83b7\u53d6\u3002<\/strong><\/p>\n<p><strong>AI\u9879\u76ee\u4f53\u9a8c\u5730\u5740 <a href=\"https:\/\/loveai.tech\">https:\/\/loveai.tech<\/a><\/strong><\/p>\n<p>\u8be5\u5de5\u7a0b\u6bd4\u8f83\u5927\uff0c\u4e3b\u8981\u662f\u5305\u542b\u4e86\u7528\u4e8e\u8bad\u7ec3\u7684COCO2014\u6570\u636e\u96c6\u3002\u63d0\u4f9b\u8fd9\u6837\u4e00\u4e2a\u5b8c\u6574\u7684\u5de5\u7a0b\u5305\u662f\u4e3a\u4e86\u65b9\u4fbf\u8bfb\u8005\u53ea\u9700\u8981\u4e0b\u8f7d\u548c\u89e3\u538b\u5c31\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884c\uff0c\u800c\u4e0d\u9700\u8981\u518d\u53bb\u989d\u5916\u7684\u5bfb\u627e\u6570\u636e\u96c6\u548c\u6d4b\u8bd5\u96c6\u3002\u4ee3\u7801\u91cc\u4e5f\u63d0\u4f9b\u4e86\u5df2\u7ecf\u8bad\u7ec3\u597d\u7684.pth\u6a21\u578b\u6587\u4ef6\u3002<\/p>\n<p>\u8bad\u7ec3\u7ed3\u679c<\/p>\n<p>\u8bad\u7ec3\u5171\u7528\u65f65\u5c0f\u65f619\u52066\u79d2\uff082\u5757GTX 1080Ti\u663e\u5361\uff09\uff0c\u8bad\u7ec3\u5b8c\u6210\u540e\u4fdd\u5b58\u7684\u6a21\u578b\u517117.8M\u3002\u4e0b\u56fe\u5c55\u793a\u4e86\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\u7684\u635f\u5931\u51fd\u6570\u53d8\u5316\u3002\u53ef\u4ee5\u770b\u5230\uff0c\u968f\u7740\u8bad\u7ec3\u7684\u8fdb\u884c\uff0c\u635f\u5931\u51fd\u6570\u9010\u6e10\u5f00\u59cb\u6536\u655b\uff0c\u5728\u7ed3\u675f\u7684\u65f6\u5019\u57fa\u672c\u5904\u5728\u6536\u655b\u5e73\u7a33\u70b9\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/nvqt3706ag.png\" alt=\"img\" \/><\/p>\n<p>\u4e0b\u56fe\u5c55\u793a\u4e86\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\u8bad\u7ec3\u6570\u636e\u8d85\u5206\u91cd\u5efa\u7684\u6548\u679c\u56fe\uff0c\u4f9d\u6b21\u5c55\u793aepoch=1\u300160\u548c130\u65f6\u7684\u6548\u679c\uff0c\u6bcf\u5f20\u56fe\u50cf\u5171\u4e09\u884c\uff0c\u7b2c\u4e00\u884c\u4e3a\u4f4e\u5206\u8fa8\u7387\u56fe\u50cf\uff0c\u7b2c\u4e8c\u884c\u4e3a\u5f53\u524d\u6a21\u578b\u91cd\u5efa\u51fa\u7684\u8d85\u5206\u56fe\u50cf\uff0c\u7b2c\u4e09\u884c\u4e3a\u5b9e\u9645\u7684\u771f\u5b9e\u539f\u59cb\u6e05\u6670\u56fe\u50cf\u3002\u53ef\u4ee5\u770b\u5230\uff0c\u968f\u7740\u8fed\u4ee3\u6b21\u6570\u7684\u589e\u52a0\uff0c\u8d85\u5206\u8fd8\u539f\u7684\u6548\u679c\u8d8a\u6765\u8d8a\u597d\uff0c\u5230\u4e86\u7b2c99\u4e2aepoch\u7684\u65f6\u5019\u8fd8\u539f\u51fa\u6765\u7684\u56fe\u50cf\u5df2\u7ecf\u5927\u5e45\u524a\u5f31\u4e86\u5757\u72b6\u566a\u70b9\u7684\u5f71\u54cd\uff0c\u56fe\u50cf\u66f4\u52a0\u7684\u5e73\u6ed1\u548c\u6e05\u6670\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/i9fxmoj5qm.jpeg\" alt=\"img\" \/><\/p>\n<p><img src=\"https:\/\/ask.qcloudimg.com\/http-save\/yehe-1336789\/j8iicx72bz.jpeg\" alt=\"img\" \/><\/p>\n<p><img src=\"https:\/\/ask.qcloudimg.com\/http-save\/yehe-1336789\/bnaoy71vjr.jpeg\" alt=\"img\" \/><\/p>\n<h2>\u4e09.  SRGAN\u7b97\u6cd5\u539f\u7406\u548cPytorch\u5b9e\u73b0<\/h2>\n<p>SRResNet\u7b97\u6cd5\u662f\u4e00\u4e2a\u5355\u6a21\u578b\u7b97\u6cd5\uff0c\u4ece\u56fe\u50cf\u8f93\u5165\u5230\u56fe\u50cf\u8f93\u51fa\u4e2d\u95f4\u901a\u8fc7\u5404\u4e2a\u5377\u79ef\u6a21\u5757\u7684\u64cd\u4f5c\u5b8c\u6210\uff0c\u6574\u4e2a\u7ed3\u6784\u6bd4\u8f83\u6e05\u6670\u3002\u4f46\u662fSRResNet\u4e5f\u6709\u4e0d\u53ef\u907f\u514d\u7684\u7f3a\u9677\uff0c\u5c31\u662f\u5b83\u91c7\u7528\u4e86MSE\u4f5c\u4e3a\u6700\u7ec8\u7684\u76ee\u6807\u51fd\u6570\uff0c\u800c\u8fd9\u4e2aMSE\u662f\u76f4\u63a5\u901a\u8fc7\u8861\u91cf\u6a21\u578b\u8f93\u51fa\u548c\u771f\u503c\u7684\u50cf\u7d20\u5dee\u5f02\u6765\u8ba1\u7b97\u7684\uff0cSRGAN\u7b97\u6cd5\u6307\u51fa\uff0c\u8fd9\u79cd\u76ee\u6807\u51fd\u6570\u4f1a\u4f7f\u5f97\u8d85\u5206\u91cd\u5efa\u51fa\u7684\u56fe\u50cf\u8fc7\u4e8e\u5e73\u6ed1\uff0c\u5c3d\u7ba1PSNR\u548cSSIM\u503c\u4f1a\u6bd4\u8f83\u9ad8\uff0c\u4f46\u662f\u91cd\u5efa\u51fa\u6765\u7684\u56fe\u50cf\u5e76\u4e0d\u80fd\u591f\u5f88\u597d\u7684\u7b26\u5408\u4eba\u773c\u4e3b\u89c2\u611f\u53d7\uff0c\u4e22\u5931\u4e86\u7ec6\u8282\u7eb9\u7406\u4fe1\u606f\u3002\u4e0b\u9762\u7ed9\u51fa\u4e00\u5f20\u56fe\u6765\u8bf4\u660eSRResNet\u7b97\u6cd5\u548cSRGAN\u7b97\u6cd5\u8d85\u5206\u91cd\u5efa\u6548\u679c\u7684\u4e0d\u540c\u4e4b\u5904\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/da92b487bh.png\" alt=\"img\" \/><\/p>\n<p>\u4ece\u56fe\u4e0a\u53ef\u4ee5\u770b\u5230\uff0c\u539f\u56fe\u56e0\u4e3a\u5206\u8fa8\u7387\u8f83\u4f4e\uff0c\u4ea7\u751f\u4e86\u6a21\u7cca\u5e76\u4e14\u4e22\u5931\u4e86\u5927\u91cf\u7684\u7ec6\u8282\u4fe1\u606f\uff0c\u53cc\u7ebf\u6027\u63d2\u503c\u65e0\u6cd5\u6709\u6548\u7684\u53bb\u6a21\u7cca\uff0c\u800cSRResNet\u7b97\u6cd5\u5c3d\u7ba1\u80fd\u591f\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u53bb\u9664\u6a21\u7cca\uff0c\u4f46\u662f\u5176\u7eb9\u7406\u7ec6\u8282\u4e0d\u6e05\u6670\u3002\u6700\u540e\u4f1a\u53d1\u73b0\uff0cSRGAN\u7b97\u6cd5\u4e0d\u4ec5\u53bb\u9664\u4e86\u6a21\u7cca\uff0c\u800c\u4e14\u8fd8\u903c\u771f\u7684\u91cd\u5efa\u51fa\u4e86\u6c34\u9762\u4e0a\u7684\u7eb9\u7406\u7ec6\u8282\uff0c\u4f7f\u5f97\u91cd\u5efa\u7684\u56fe\u7247\u89c6\u89c9\u4e0a\u4e0e\u771f\u503c\u56fe\u975e\u5e38\u543b\u5408\u3002<\/p>\n<p>\u90a3\u600e\u4e48\u8ba9\u6a21\u578b\u5728\u7eb9\u7406\u7ec6\u8282\u4e22\u5931\u7684\u60c5\u51b5\u4e0b\u201c\u65e0\u4e2d\u751f\u6709\u201d\u7684\u91cd\u5efa\u51fa\u8fd9\u4e9b\u4fe1\u606f\u5462\uff1f\u7b54\u6848\u5c31\u662f\u751f\u6210\u5bf9\u6297\u7f51\u7edc(Generative Adversarial Network, GAN)\u3002<\/p>\n<h3>1. \u751f\u6210\u5bf9\u6297\u7f51\u7edc(GAN)<\/h3>\n<p>GAN\u7684\u4e3b\u8981\u7075\u611f\u6765\u6e90\u4e8e\u535a\u5f08\u8bba\u4e2d\u535a\u5f08\u7684\u601d\u60f3\uff0c\u5e94\u7528\u5230\u6df1\u5ea6\u5b66\u4e60\u4e0a\u6765\u8bf4\uff0c\u5c31\u662f\u6784\u9020\u4e24\u4e2a\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\uff1a\u751f\u6210\u7f51\u7edcG\uff08Generator\uff09\u548c\u5224\u522b\u7f51\u7edcD\uff08Discriminator\uff09\uff0c\u7136\u540e\u4e24\u4e2a\u6a21\u578b\u4e0d\u65ad\u535a\u5f08\uff0c\u8fdb\u800c\u4f7fG\u751f\u6210\u903c\u771f\u7684\u56fe\u50cf\uff0c\u800cD\u5177\u6709\u975e\u5e38\u5f3a\u7684\u5224\u65ad\u56fe\u50cf\u771f\u4f2a\u7684\u80fd\u529b\u3002\u751f\u6210\u7f51\u7edc\u548c\u5224\u522b\u7f51\u7edc\u7684\u4e3b\u8981\u529f\u80fd\u662f\uff1a<\/p>\n<ul>\n<li>G\u662f\u4e00\u4e2a\u751f\u6210\u5f0f\u7684\u7f51\u7edc\uff0c\u5b83\u901a\u8fc7\u67d0\u79cd\u7279\u5b9a\u7684\u7f51\u7edc\u7ed3\u6784\u4ee5\u53ca\u76ee\u6807\u51fd\u6570\u6765\u751f\u6210\u56fe\u50cf\uff1b<\/li>\n<li>D\u662f\u4e00\u4e2a\u5224\u522b\u7f51\u7edc\uff0c\u5224\u522b\u4e00\u5f20\u56fe\u7247\u662f\u4e0d\u662f\u201c\u771f\u5b9e\u7684\u201d\uff0c\u5373\u5224\u65ad\u8f93\u5165\u7684\u7167\u7247\u662f\u4e0d\u662f\u7531G\u751f\u6210\uff1b<\/li>\n<\/ul>\n<p>G\u7684\u4f5c\u7528\u5c31\u662f\u5c3d\u53ef\u80fd\u7684\u751f\u6210\u903c\u771f\u7684\u56fe\u50cf\u6765\u8ff7\u60d1D\uff0c\u4f7f\u5f97D\u5224\u65ad\u5931\u8d25\uff1b\u800cD\u7684\u4f5c\u7528\u5c31\u662f\u5c3d\u53ef\u80fd\u7684\u6316\u6398G\u7684\u7834\u7efd\uff0c\u6765\u5224\u65ad\u56fe\u50cf\u5230\u5e95\u662f\u4e0d\u662f\u7531G\u751f\u6210\u7684\u201c\u5047\u5192\u4f2a\u52a3\u201d\u3002\u6574\u4e2a\u8fc7\u7a0b\u5c31\u597d\u6bd4\u4e24\u4e2a\u65b0\u624b\u4e0b\u68cb\u535a\u5f08\uff0c\u968f\u7740\u5bf9\u5f08\u76d8\u6570\u7684\u589e\u52a0\uff0c\u4e00\u4e2a\u8ff7\u60d1\u624b\u6bb5\u8d8a\u6765\u8d8a\u9ad8\u660e\uff0c\u800c\u53e6\u4e00\u4e2a\u7504\u522b\u672c\u9886\u4e5f\u8d8a\u6765\u8d8a\u5f3a\u5927\uff0c\u6700\u540e\uff0c\u4e24\u4e2a\u65b0\u624b\u90fd\u53d8\u6210\u4e86\u9ad8\u624b\u3002\u8fd9\u4e2a\u65f6\u5019\u518d\u8ba9G\u53bb\u548c\u5176\u5b83\u7684\u4eba\u4e0b\u68cb\uff0c\u53ef\u4ee5\u60f3\u5230G\u8ff7\u60d1\u7684\u672c\u9886\u5df2\u7ecf\u8d85\u8d8a\u4e86\u4e00\u4f17\u666e\u901a\u68cb\u624b\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fGAN\u7b97\u6cd5\u7684\u539f\u7406\u3002\u8fd0\u7528\u5728\u56fe\u50cf\u9886\u57df\uff0c\u4f8b\u5982\u98ce\u683c\u8fc1\u79fb\uff0c\u8d85\u5206\u91cd\u5efa\uff0c\u56fe\u50cf\u8865\u5168\uff0c\u53bb\u566a\u7b49\uff0c\u8fd0\u7528GAN\u53ef\u4ee5\u907f\u514d\u635f\u5931\u51fd\u6570\u8bbe\u8ba1\u7684\u56f0\u96be\uff0c\u4e0d\u7ba1\u4e09\u4e03\u4e8c\u5341\u4e00\uff0c\u53ea\u8981\u6709\u4e00\u4e2a\u57fa\u51c6\uff0c\u76f4\u63a5\u52a0\u4e0a\u5224\u522b\u5668\uff0c\u5269\u4e0b\u7684\u5c31\u4ea4\u7ed9\u5bf9\u6297\u8bad\u7ec3\u3002\u76f8\u6bd4\u5176\u4ed6\u6240\u6709\u6a21\u578b, GAN\u53ef\u4ee5\u4ea7\u751f\u66f4\u52a0\u6e05\u6670\uff0c\u771f\u5b9e\u7684\u6837\u672c\u3002<\/p>\n<h3>2. \u611f\u77e5\u635f\u5931<\/h3>\n<p>\u4e3a\u4e86\u9632\u6b62\u91cd\u5efa\u56fe\u50cf\u8fc7\u5ea6\u5e73\u6ed1\uff0cSRGAN\u91cd\u65b0\u5b9a\u4e49\u4e86\u635f\u5931\u51fd\u6570\uff0c\u5e76\u5c06\u5176\u547d\u540d\u4e3a\u611f\u77e5\u635f\u5931(Perceptual loss)\u3002\u611f\u77e5\u635f\u5931\u6709\u4e24\u90e8\u5206\u6784\u6210\uff1a<\/p>\n<p>\u611f\u77e5\u635f\u5931=\u5185\u5bb9\u635f\u5931+\u5bf9\u6297\u635f\u5931<\/p>\n<p>\u5bf9\u6297\u635f\u5931\u5c31\u662f\u91cd\u5efa\u51fa\u6765\u7684\u56fe\u7247\u88ab\u5224\u522b\u5668\u6b63\u786e\u5224\u65ad\u7684\u635f\u5931\uff0c\u8fd9\u90e8\u5206\u5185\u5bb9\u8ddf\u4e00\u822c\u7684GAN\u5b9a\u4e49\u76f8\u540c\u3002SRGAN\u7684\u4e00\u5927\u521b\u65b0\u70b9\u5c31\u662f\u63d0\u51fa\u4e86\u5185\u5bb9\u635f\u5931\uff0cSRGAN\u5e0c\u671b\u8ba9\u6574\u4e2a\u7f51\u7edc\u5728\u5b66\u4e60\u7684\u8fc7\u7a0b\u4e2d\u66f4\u52a0\u5173\u6ce8\u91cd\u5efa\u56fe\u7247\u548c\u539f\u59cb\u56fe\u7247\u7684\u8bed\u4e49\u7279\u5f81\u5dee\u5f02\uff0c\u800c\u4e0d\u662f\u9010\u4e2a\u50cf\u7d20\u4e4b\u95f4\u7684\u989c\u8272\u4eae\u5ea6\u5dee\u5f02\u3002\u4ee5\u5f80\u6211\u4eec\u5728\u8ba1\u7b97\u8d85\u5206\u91cd\u5efa\u56fe\u50cf\u548c\u539f\u59cb\u9ad8\u6e05\u56fe\u50cf\u5dee\u5f02\u7684\u65f6\u5019\u662f\u76f4\u63a5\u5728\u50cf\u7d20\u56fe\u50cf\u4e0a\u8fdb\u884c\u6bd4\u8f83\u7684\uff0c\u7528\u7684MSE\u51c6\u5219\u3002SRGAN\u7b97\u6cd5\u63d0\u51fa\u8005\u8ba4\u4e3a\u8fd9\u79cd\u65b9\u5f0f\u53ea\u4f1a\u8fc7\u5ea6\u7684\u8ba9\u6a21\u578b\u53bb\u5b66\u4e60\u8fd9\u4e9b\u50cf\u7d20\u5dee\u5f02\uff0c\u800c\u5ffd\u7565\u4e86\u91cd\u5efa\u56fe\u50cf\u7684\u56fa\u6709\u7279\u5f81\u3002\u5b9e\u9645\u7684\u5dee\u5f02\u8ba1\u7b97\u5e94\u8be5\u5728\u56fe\u50cf\u7684\u56fa\u6709\u7279\u5f81\u4e0a\u8ba1\u7b97\u3002\u4f46\u662f\u8fd9\u79cd\u56fa\u6709\u7279\u5f81\u600e\u4e48\u8868\u793a\u5462\uff1f\u5176\u5b9e\u5f88\u7b80\u5355\uff0c\u5df2\u7ecf\u6709\u5f88\u591a\u6a21\u578b\u4e13\u95e8\u63d0\u51fa\u6765\u63d0\u53d6\u56fe\u50cf\u56fa\u6709\u7279\u5f81\u7136\u540e\u8fdb\u884c\u5206\u7c7b\u7b49\u4efb\u52a1\u3002\u6211\u4eec\u53ea\u9700\u8981\u628a\u8fd9\u4e9b\u6a21\u578b\u4e2d\u7684\u7279\u5f81\u63d0\u53d6\u6a21\u5757\u622a\u53d6\u51fa\u6765\uff0c\u7136\u540e\u53bb\u8ba1\u7b97\u91cd\u5efa\u56fe\u50cf\u548c\u539f\u59cb\u56fe\u50cf\u7684\u7279\u5f81\uff0c\u8fd9\u4e9b\u7279\u5f81\u5c31\u662f\u8bed\u4e49\u7279\u5f81\u4e86\uff0c\u7136\u540e\u518d\u5728\u7279\u5f81\u5c42\u4e0a\u8fdb\u884c\u4e24\u5e45\u56fe\u50cf\u7684MSE\u8ba1\u7b97\u3002\u5728\u4f17\u591a\u6a21\u578b\u4e2d\uff0cSRGAN\u9009\u7528\u4e86VGG19\u6a21\u578b\uff0c\u5176\u622a\u53d6\u7684\u6a21\u578b\u547d\u540d\u4e3atruncated_vgg19\u3002\u6240\u8c13\u6a21\u578b\u622a\u65ad\uff0c\u4e5f\u5c31\u662f\u53ea\u63d0\u53d6\u539f\u59cb\u6a21\u578b\u7684\u4e00\u90e8\u5206\uff0c\u7136\u540e\u4f5c\u4e3a\u4e00\u4e2a\u65b0\u7684\u5355\u72ec\u7684\u6a21\u578b\u8fdb\u884c\u4f7f\u7528\u3002<\/p>\n<p>\u81f3\u6b64\u91cd\u65b0\u6574\u7406\u4e0b\u5185\u5bb9\u635f\u5931\u8ba1\u7b97\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li>\u901a\u8fc7SRResNet\u6a21\u578b\u91cd\u5efa\u51fa\u9ad8\u6e05\u56fe\u50cfSR\uff1b<\/li>\n<li>\u901a\u8fc7truncated_vgg19\u6a21\u578b\u5bf9\u539f\u59cb\u9ad8\u6e05\u56fe\u50cfH\u548c\u91cd\u5efa\u51fa\u7684\u9ad8\u6e05\u56fe\u50cfSR\u5206\u522b\u8fdb\u884c\u8ba1\u7b97\uff0c\u5f97\u5230\u4e24\u5e45\u56fe\u50cf\u5bf9\u5e94\u7684\u7279\u5f81\u56feH_fea\u548cSR_fea;<\/li>\n<li>\u8ba1\u7b97H_fea\u548cSR_fea\u7684MSE\u503c\uff1b<\/li>\n<\/ul>\n<p>\u4ece\u4e0a\u8ff0\u8ba1\u7b97\u65b9\u5f0f\u4e0a\u770b\u51fa\uff0c\u539f\u6765\u7684\u8ba1\u7b97\u65b9\u5f0f\u662f\u76f4\u63a5\u8ba1\u7b97H\u548cSR\u7684MSE\u503c\uff0c\u800c\u6539\u7528\u65b0\u7684\u5185\u5bb9\u635f\u5931\u540e\u53ea\u9700\u8981\u5229\u7528truncated_vgg19\u6a21\u578b\u5bf9\u56fe\u50cf\u591a\u4f5c\u4e00\u6b21\u63a8\u7406\u5f97\u5230\u7279\u5f81\u56fe\uff0c\u518d\u5728\u7279\u5f81\u56fe\u4e0a\u8fdb\u884c\u8ba1\u7b97\u3002<\/p>\n<h3>3. SRGAN\u7ed3\u6784\u5256\u6790<\/h3>\n<p>SRGAN\u5206\u4e3a\u4e24\u90e8\u5206\uff1a\u751f\u6210\u5668\u6a21\u578b\uff08Generator\uff09\u548c\u5224\u522b\u5668\u6a21\u578b\uff08Discriminator\uff09\u3002<\/p>\n<p>\u751f\u6210\u5668\u6a21\u578b\u91c7\u7528\u4e86SRResNet\u5b8c\u5168\u4e00\u6837\u7684\u7ed3\u6784\uff0c\u53ea\u662f\u5728\u8ba1\u7b97\u635f\u5931\u51fd\u6570\u65f6\u9700\u8981\u5229\u7528\u622a\u65ad\u7684VGG19\u6a21\u578b\u8fdb\u884c\u8ba1\u7b97\u3002\u8fd9\u91cc\u6ce8\u610f\uff0c\u622a\u65ad\u7684VGG19\u6a21\u578b\u53ea\u662f\u7528\u6765\u8ba1\u7b97\u56fe\u50cf\u7279\u5f81\uff0c\u5176\u672c\u8eab\u5e76\u4e0d\u4f5c\u4e3a\u4e00\u4e2a\u5b50\u6a21\u5757\u52a0\u5728\u751f\u6210\u5668\u540e\u9762\u3002\u53ef\u4ee5\u5c06\u6b64\u5904\u7684VGG19\u6a21\u578b\u7406\u89e3\u4e3a\u9759\u6b62\u7684\uff08\u68af\u5ea6\u4e0d\u66f4\u65b0\u7684\uff09\uff0c\u53ea\u662f\u7528\u5b83\u6765\u8ba1\u7b97\u4e00\u4e0b\u7279\u5f81\u800c\u5df2\uff0c\u5176\u4f7f\u7528\u4e0e\u4e00\u822c\u7684\u56fe\u50cf\u6ee4\u6ce2\u5668sobel\u3001canny\u7b97\u5b50\u7b49\u7c7b\u4f3c\u3002<\/p>\n<p>\u5224\u522b\u5668\u6a21\u578b\u7ed3\u6784\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/2kqcjwafpy.png\" alt=\"img\" \/><\/p>\n<h3>Pytorch\u5b9e\u73b0<\/h3>\n<p>Pytorch\u5b9e\u73b0\u6cbf\u7528\u524d\u9762SRResNet\u7684\u8bbe\u8ba1\u6846\u67b6\u3002\u7531\u4e8eSRGAN\u7b97\u6cd5\u7684\u751f\u6210\u5668\u90e8\u5206\u91c7\u7528\u7684\u662f\u4e0eSRResNet\u6a21\u578b\u5b8c\u5168\u4e00\u6837\u7684\u7ed3\u6784\uff0c\u56e0\u6b64\u6211\u4eec\u5728\u8bad\u7ec3\u65f6\u5c31\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u524d\u9762\u8bad\u7ec3\u597d\u7684SRResNet\u6a21\u578b\u5bf9\u751f\u6210\u5668\u8fdb\u884c\u521d\u59cb\u5316\u4ee5\u52a0\u5feb\u6574\u4e2a\u7b97\u6cd5\u7684\u6536\u655b\u3002<\/p>\n<p><strong>\u4ee3\u7801\uff0c\u6a21\u578b\uff0c\u6570\u636e\u96c6\u83b7\u53d6\u65b9\u5f0f<\/strong><\/p>\n<p><strong>\u5173\u6ce8\u5fae\u4fe1\u516c\u4f17\u53f7 datayx  \u7136\u540e\u56de\u590d \u8d85\u5206 \u5373\u53ef\u83b7\u53d6\u3002<\/strong><\/p>\n<p><strong>AI\u9879\u76ee\u4f53\u9a8c\u5730\u5740 <a href=\"https:\/\/loveai.tech\">https:\/\/loveai.tech<\/a><\/strong><\/p>\n<p>\u4e0b\u56fe\u5206\u522b\u5c55\u793a\u4e86\u6574\u4e2a\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\u5185\u5bb9\u635f\u5931\u3001\u751f\u6210\u635f\u5931\u548c\u5224\u522b\u635f\u5931\u7684\u53d8\u5316\u66f2\u7ebf\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/c0ulckcotl.png\" alt=\"img\" \/><\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/4gh365jv0n.png\" alt=\"img\" \/><\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/12w0fri1rs.png\" alt=\"img\" 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