{"id":5933,"date":"2022-08-22T16:44:39","date_gmt":"2022-08-22T08:44:39","guid":{"rendered":"http:\/\/139.9.1.231\/?p=5933"},"modified":"2022-08-22T16:44:41","modified_gmt":"2022-08-22T08:44:41","slug":"esrgan","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2022\/08\/22\/esrgan\/","title":{"rendered":"ESRGAN\u56fe\u50cf\u8d85\u5206\u8fa8"},"content":{"rendered":"\n<p>\u8bba\u6587\uff1a<a href=\"https:\/\/arxiv.org\/abs\/1809.00219\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/arxiv.org\/abs\/1809.00219<\/a><\/p>\n\n\n\n<p>github: <a href=\"https:\/\/github.com\/xinntao\/ESRGAN\">https:\/\/github.com\/xinntao\/ESRGAN<\/a><\/p>\n\n\n\n<p class=\"has-light-pink-background-color has-background\"><strong>ESRGAN: Enhanced Super-Resolution Generative Adversarial Networks<\/strong>\u53d1\u8868\u4e8eECCV 2018 \u7684 Workshops\uff0c\u5728<strong>SRGAN<\/strong>\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u4e86\u6539\u8fdb\uff0c\u5305\u62ec\u6539\u8fdb<strong>\u7f51\u7edc\u7684\u7ed3\u6784\uff0c\u5224\u51b3\u5668\u7684\u5224\u51b3\u5f62\u5f0f<\/strong>\uff0c\u4ee5\u53ca<strong>\u66f4\u6362\u4e86\u4e00\u4e2a\u7528\u4e8e\u8ba1\u7b97\u611f\u77e5\u57df\u635f\u5931\u7684\u9884\u8bad\u7ec3\u7f51\u7edc<\/strong>\u3002<\/p>\n\n\n\n<p>\u8d85\u5206\u8fa8\u7387\u751f\u6210\u5bf9\u6297\u7f51\u7edc\uff08SRGAN\uff09\u662f\u4e00\u9879\u5f00\u521b\u6027\u7684\u5de5\u4f5c\uff0c\u80fd\u591f\u5728\u5355\u4e00\u56fe\u50cf\u8d85\u5206\u8fa8\u7387\u4e2d\u751f\u6210\u903c\u771f\u7684\u7eb9\u7406\u3002\u8fd9\u9879\u5de5\u4f5c\u53d1\u8868\u4e8eCVPR 2017\uff0c<\/p>\n\n\n\n<p>\u6587\u7ae0\u94fe\u63a5\uff1a<a rel=\"noreferrer noopener\" target=\"_blank\" href=\"https:\/\/arxiv.org\/abs\/1609.04802\">Photo-Realistic Single Image Super-Resolution Using a Generative Adversarial Network<\/a><\/p>\n\n\n\n<p>\u4f46\u662f\uff0c\u653e\u5927\u540e\u7684\u7ec6\u8282\u901a\u5e38\u4f34\u968f\u7740\u4ee4\u4eba\u4e0d\u5feb\u7684\u4f2a\u5f71\u3002\u4e3a\u4e86\u66f4\u8fdb\u4e00\u6b65\u5730\u63d0\u5347\u89c6\u89c9\u8d28\u91cf\uff0c\u4f5c\u8005\u4ed4\u7ec6\u7814\u7a76\u4e86SRGAN\u7684\u4e09\u4e2a\u5173\u952e\u90e8\u5206\uff1a1.\u7f51\u7edc\u7ed3\u6784 2.\u5bf9\u6297\u6027\u635f\u5931 3.\u611f\u77e5\u57df\u635f\u5931\uff1b\u5e76\u5bf9\u6bcf\u4e00\u9879\u8fdb\u884c\u6539\u8fdb\uff0c\u5f97\u5230<strong>ESRGAN<\/strong>\u3002\u5177\u4f53\u800c\u8a00\uff0c\u6587\u7ae0\u63d0\u51fa\u4e86\u4e00\u79cd<strong>Residual-in-Residual Dense Block<\/strong>\u00a0<strong>(RRDB)<\/strong>\u7684\u7f51\u7edc\u5355\u5143\uff0c\u5728\u8fd9\u4e2a\u5355\u5143\u4e2d\uff0c\u53bb\u6389\u4e86<strong>BN\uff08Batch Norm\uff09\u5c42<\/strong>\u3002\u6b64\u5916\uff0c\u4f5c\u8005\u501f\u9274\u4e86<strong>relativistic GAN<\/strong>\u7684\u60f3\u6cd5\uff0c\u8ba9\u5224\u522b\u5668\u9884\u6d4b\u56fe\u50cf\u7684\u771f\u5b9e\u6027\u800c\u4e0d\u662f\u56fe\u50cf\u201c\u662f\u5426\u662ffake\u56fe\u50cf\u201d\u3002\u6700\u540e\uff0c\u6587\u7ae0<strong>\u5bf9\u611f\u77e5\u57df\u635f\u5931\u8fdb\u884c\u6539\u8fdb\uff0c\u4f7f\u7528\u6fc0\u6d3b\u524d\u7684\u7279\u5f81<\/strong>\uff0c\u8fd9\u6837\u53ef\u4ee5\u4e3a\u4eae\u5ea6\u4e00\u81f4\u6027\u548c\u7eb9\u7406\u6062\u590d\u63d0\u4f9b\u66f4\u5f3a\u7684\u76d1\u7763\u3002\u5728\u8fd9\u4e9b\u6539\u8fdb\u7684\u5e2e\u52a9\u4e0b\uff0cESRGAN\u5f97\u5230\u4e86\u66f4\u597d\u7684\u89c6\u89c9\u8d28\u91cf\u4ee5\u53ca\u66f4\u903c\u771f\u548c\u81ea\u7136\u7684\u7eb9\u7406\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"520\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-268-1024x520.png\" alt=\"\" class=\"wp-image-6021\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-268-1024x520.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-268-300x152.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-268-768x390.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-268.png 1339w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u5728\u7eb9\u7406\u548c\u7ec6\u8282\u4e0a\uff0cESRGAN\u90fd\u4f18\u4e8eSRGAN<\/figcaption><\/figure>\n\n\n\n<h2><strong>SRGAN<\/strong>\u7684\u601d\u8003\u4e0e\u8d21\u732e<\/h2>\n\n\n\n<p>\u73b0\u6709\u7684\u8d85\u5206\u8fa8\u7387\u7f51\u7edc\u5728\u4e0d\u540c\u7684\u7f51\u7edc\u7ed3\u6784\u8bbe\u8ba1\u4ee5\u53ca\u8bad\u7ec3\u7b56\u7565\u4e0b\uff0c\u8d85\u5206\u8fa8\u7684\u6548\u679c\u5f97\u5230\u4e86\u5f88\u5927\u7684\u63d0\u5347\uff0c\u7279\u522b\u662fPSNR\u6307\u6807\u3002\u4f46\u662f\uff0c<strong>\u57fa\u4e8ePSNR\u6307\u6807\u7684\u6a21\u578b\u4f1a\u503e\u5411\u4e8e\u751f\u6210\u8fc7\u5ea6\u5e73\u6ed1\u7684\u7ed3\u679c<\/strong>\uff0c\u8fd9\u4e9b\u7ed3\u679c\u7f3a\u5c11\u5fc5\u8981\u7684\u9ad8\u9891\u4fe1\u606f\u3002PSNR\u6307\u6807\u4e0e\u4eba\u7c7b\u89c2\u5bdf\u8005\u7684\u4e3b\u89c2\u8bc4\u4ef7\u4ece\u6839\u672c\u4e0a\u5c31\u4e0d\u7edf\u4e00\u3002<\/p>\n\n\n\n<p>\u4e00\u4e9b\u57fa\u4e8e\u611f\u77e5\u57df\u4fe1\u606f\u9a71\u52a8\u7684\u65b9\u6cd5\u5df2\u7ecf\u63d0\u51fa\u6765\u7528\u4e8e\u63d0\u5347\u8d85\u5206\u8fa8\u7387\u7ed3\u679c\u7684\u89c6\u89c9\u8d28\u91cf\u3002\u4f8b\u5982\uff0c\u611f\u77e5\u57df\u7684\u635f\u5931\u51fd\u6570\u63d0\u51fa\u6765\u7528\u4e8e\u5728\u7279\u5f81\u7a7a\u95f4\uff08instead of \u50cf\u7d20\u7a7a\u95f4\uff09\u4e2d\u4f18\u5316\u8d85\u5206\u8fa8\u7387\u6a21\u578b\uff1b\u751f\u6210\u5bf9\u6297\u7f51\u7edc\u901a\u8fc7\u9f13\u52b1\u7f51\u7edc\u751f\u6210\u4e00\u4e9b\u66f4\u63a5\u8fd1\u4e8e\u81ea\u7136\u56fe\u50cf\u7684\u65b9\u6cd5\u6765\u63d0\u5347\u8d85\u5206\u8fa8\u7387\u7684\u8d28\u91cf\uff1b\u8bed\u4e49\u56fe\u50cf\u5148\u9a8c\u4fe1\u606f\u7528\u4e8e\u8fdb\u4e00\u6b65\u6539\u5584\u6062\u590d\u7684\u7eb9\u7406\u7ec6\u8282\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u7ed3\u5408\u4e0a\u9762\u7684\u65b9\u6cd5\uff0cSRGAN\u6a21\u578b\u6781\u5927\u5730\u63d0\u5347\u4e86\u8d85\u5206\u8fa8\u7387\u7ed3\u679c\u7684\u89c6\u89c9\u8d28\u91cf\u3002\u4f46\u662fSRGAN\u6a21\u578b\u5f97\u5230\u7684\u56fe\u50cf\u548cGT\u56fe\u50cf\u4ecd\u6709\u5f88\u5927\u7684\u5dee\u8ddd\u3002<\/p>\n\n\n\n<h2><strong>ESRGAN<\/strong>\u7684\u6539\u8fdb<\/h2>\n\n\n\n<p>\u6587\u7ae0\u5bf9\u8fd9\u4e09\u70b9\u505a\u51fa\u6539\u8fdb\uff1a1.\u7f51\u7edc\u7684\u57fa\u672c\u5355\u5143\u4ece\u57fa\u672c\u7684\u6b8b\u5dee\u5355\u5143\u53d8\u4e3aResidual-in-Residual Dense Block (RRDB)\uff1b2.GAN\u7f51\u7edc\u6539\u8fdb\u4e3aRelativistic average GAN (RaGAN)\uff1b3.\u6539\u8fdb\u611f\u77e5\u57df\u635f\u5931\u51fd\u6570\uff0c\u4f7f\u7528<strong>\u6fc0\u6d3b\u524d<\/strong>\u7684VGG\u7279\u5f81\uff0c\u8fd9\u4e2a\u6539\u8fdb\u4f1a\u63d0\u4f9b\u66f4\u5c16\u9510\u7684\u8fb9\u7f18\u548c\u66f4\u7b26\u5408\u89c6\u89c9\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<h2><strong>\u7f51\u7edc\u7ed3\u6784\u53ca\u601d\u60f3<\/strong><\/h2>\n\n\n\n<p><strong>\u751f\u6210\u5668\u90e8\u5206<\/strong><\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u4f5c\u8005\u53c2\u8003SRResNet\u7ed3\u6784\u4f5c\u4e3a\u6574\u4f53\u7684\u7f51\u7edc\u7ed3\u6784\uff0cSRResNet\u7684\u57fa\u672c\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"317\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-269-1024x317.png\" alt=\"\" class=\"wp-image-6025\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-269-1024x317.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-269-300x93.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-269-768x238.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-269.png 1431w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>SRResNet\u57fa\u672c\u7ed3\u6784<\/figcaption><\/figure>\n\n\n\n<p>\u4e3a\u4e86\u63d0\u5347SRGAN\u91cd\u6784\u7684\u56fe\u50cf\u7684\u8d28\u91cf\uff0c\u4f5c\u8005\u4e3b\u8981\u5bf9\u751f\u6210\u5668G\u505a\u51fa\u5982\u4e0b\u6539\u53d8\uff1a1.\u53bb\u6389\u6240\u6709\u7684BN\u5c42\uff1b2.\u628a\u539f\u59cb\u7684block\u53d8\u4e3aResidual-in-Residual Dense Block (RRDB)\uff0c\u8fd9\u4e2ablock\u7ed3\u5408\u4e86\u591a\u5c42\u7684\u6b8b\u5dee\u7f51\u7edc\u548c\u5bc6\u96c6\u8fde\u63a5\u3002<\/p>\n\n\n\n<p>\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-270-1024x313.png\" alt=\"\" class=\"wp-image-6026\" width=\"690\" height=\"210\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-270-1024x313.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-270-300x92.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-270-768x234.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-270.png 1405w\" sizes=\"(max-width: 690px) 100vw, 690px\" \/><figcaption>RRDB<\/figcaption><\/figure>\n\n\n\n<p><strong>\u601d\u60f3\uff1a<\/strong><\/p>\n\n\n\n<p>BN\u5c42\u7684\u5f71\u54cd<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u4e0d\u540c\u7684\u57fa\u4e8ePSNR\u7684\u4efb\u52a1\uff08\u5305\u62ec\u8d85\u5206\u8fa8\u7387\u548c\u53bb\u6a21\u7cca\uff09\u6765\u8bf4\uff0c\u53bb\u6389BN\u5c42\u5df2\u7ecf\u88ab\u8bc1\u660e\u4f1a\u63d0\u9ad8\u8868\u73b0\u548c\u51cf\u5c0f\u8ba1\u7b97\u590d\u6742\u5ea6\u3002BN\u5c42\u5728\u8bad\u7ec3\u65f6\uff0c\u4f7f\u7528\u4e00\u4e2abatch\u7684\u6570\u636e\u7684\u5747\u503c\u548c\u65b9\u5dee\u5bf9\u8be5batch\u7279\u5f81\u8fdb\u884c\u5f52\u4e00\u5316\uff0c\u5728\u6d4b\u8bd5\u65f6\uff0c\u4f7f\u7528\u5728\u6574\u4e2a\u6d4b\u8bd5\u96c6\u4e0a\u7684\u6570\u636e\u9884\u6d4b\u7684\u5747\u503c\u548c\u65b9\u5dee\u3002\u5f53\u8bad\u7ec3\u96c6\u548c\u6d4b\u8bd5\u96c6\u7684\u7edf\u8ba1\u91cf\u6709\u5f88\u5927\u4e0d\u540c\u7684\u65f6\u5019\uff0cBN\u5c42\u5c31\u4f1a\u503e\u5411\u4e8e\u751f\u6210\u4e0d\u597d\u7684\u4f2a\u5f71\uff0c\u5e76\u4e14\u9650\u5236\u6a21\u578b\u7684\u6cdb\u5316\u80fd\u529b\u3002\u4f5c\u8005\u53d1\u73b0\uff0cBN\u5c42\u5728\u7f51\u7edc\u6bd4\u8f83\u6df1\uff0c\u800c\u4e14\u5728GAN\u6846\u67b6\u4e0b\u8fdb\u884c\u8bad\u7ec3\u7684\u65f6\u5019\uff0c\u66f4\u4f1a\u4ea7\u751f\u4f2a\u5f71\u3002\u8fd9\u4e9b\u4f2a\u5f71\u5076\u5c14\u51fa\u73b0\u5728\u8fed\u4ee3\u548c\u4e0d\u540c\u7684\u8bbe\u7f6e\u4e2d\uff0c\u8fdd\u53cd\u4e86\u5bf9\u8bad\u7ec3\u7a33\u5b9a\u6027\u80fd\u7684\u9700\u6c42\u3002\u6240\u4ee5\u4e3a\u4e86\u7a33\u5b9a\u7684\u8bad\u7ec3\u548c\u4e00\u81f4\u7684\u6027\u80fd\uff0c\u4f5c\u8005\u53bb\u6389\u4e86BN\u5c42\u3002\u6b64\u5916\uff0c\u53bb\u6389BN\u5c42\u4e5f\u80fd\u63d0\u9ad8\u6a21\u578b\u7684\u6cdb\u5316\u80fd\u529b\uff0c\u51cf\u5c11\u8ba1\u7b97\u590d\u6742\u5ea6\u548c\u5185\u5b58\u5360\u7528\u3002<\/p>\n\n\n\n<p><strong>Trick\uff1a<\/strong><\/p>\n\n\n\n<p>\u9664\u4e86\u4e0a\u8ff0\u7684\u6539\u8fdb\uff0c\u4f5c\u8005\u4e5f\u4f7f\u7528\u4e86\u4e00\u4e9b\u6280\u5de7\u6765\u8bad\u7ec3\u6df1\u5c42\u7f51\u7edc\uff1a1.\u5bf9\u6b8b\u5dee\u4fe1\u606f\u8fdb\u884cscaling\uff0c\u5373\u5c06\u6b8b\u5dee\u4fe1\u606f\u4e58\u4ee5\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u6570\uff0c\u7528\u4e8e\u9632\u6b62\u4e0d\u7a33\u5b9a\uff1b2.\u66f4\u5c0f\u7684\u521d\u59cb\u5316\uff0c\u4f5c\u8005\u53d1\u73b0\u5f53\u521d\u59cb\u5316\u53c2\u6570\u7684\u65b9\u5dee\u53d8\u5c0f\u65f6\uff0c\u6b8b\u5dee\u7ed3\u6784\u66f4\u5bb9\u6613\u8fdb\u884c\u8bad\u7ec3\u3002<\/p>\n\n\n\n<p><strong>\u5224\u522b\u5668\u90e8\u5206<\/strong><\/p>\n\n\n\n<p>\u9664\u4e86\u6539\u8fdb\u7684\u751f\u6210\u5668\uff0c\u4f5c\u8005\u4e5f\u57fa\u4e8eRelativistic GAN\u6539\u8fdb\u4e86\u5224\u522b\u5668\u3002\u5224\u522b\u5668 D \u4f7f\u7528\u7684\u7f51\u7edc\u662f<strong>\u00a0VGG\u00a0<\/strong>\u7f51\u7edc\uff0cSRGAN\u4e2d\u7684\u5224\u522b\u5668D\u7528\u4e8e\u4f30\u8ba1\u8f93\u5165\u5230\u5224\u522b\u5668\u4e2d\u7684\u56fe\u50cf\u662f\u771f\u5b9e\u4e14\u81ea\u7136\u56fe\u50cf\u7684\u6982\u7387\uff0c\u800cRelativistic\u5224\u522b\u5668\u5219\u5c1d\u8bd5\u4f30\u8ba1<strong>\u771f\u5b9e\u56fe\u50cf\u76f8\u5bf9\u6765\u8bf4\u6bd4fake\u56fe\u50cf\u66f4\u903c\u771f\u7684\u6982\u7387\u3002<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"228\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-271-1024x228.png\" alt=\"\" class=\"wp-image-6032\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-271-1024x228.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-271-300x67.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-271-768x171.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-271.png 1377w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u5177\u4f53\u800c\u8a00\uff0c\u4f5c\u8005\u628a\u6807\u51c6\u7684\u5224\u522b\u5668\u6362\u6210Relativistic average Discriminator\uff08RaD\uff09\uff0c\u6240\u4ee5\u5224\u522b\u5668\u7684\u635f\u5931\u51fd\u6570\u5b9a\u4e49\u4e3a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"932\" height=\"217\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-272.png\" alt=\"\" class=\"wp-image-6033\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-272.png 932w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-272-300x70.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-272-768x179.png 768w\" sizes=\"(max-width: 932px) 100vw, 932px\" \/><\/figure>\n\n\n\n<p>\u6c42\u5747\u503c\u7684\u64cd\u4f5c\u662f\u901a\u8fc7\u5bf9mini-batch\u4e2d\u7684\u6240\u6709\u6570\u636e\u6c42\u5e73\u5747\u5f97\u5230\u7684\uff0cxf\u662f\u539f\u59cb\u4f4e\u5206\u8fa8\u56fe\u50cf\u7ecf\u8fc7\u751f\u6210\u5668\u4ee5\u540e\u7684\u56fe\u50cf\u3002<\/p>\n\n\n\n<p>\u53ef\u4ee5\u89c2\u5bdf\u5230\uff0c\u5bf9\u6297\u635f\u5931\u5305\u542b\u4e86xr\u548cxf\uff0c\u6240\u4ee5\u8fd9\u4e2a\u751f\u6210\u5668\u53d7\u76ca\u4e8e\u5bf9\u6297\u8bad\u7ec3\u4e2d\u7684\u751f\u6210\u6570\u636e\u548c\u5b9e\u9645\u6570\u636e\u7684\u68af\u5ea6\uff0c\u8fd9\u79cd\u8c03\u6574\u4f1a\u4f7f\u5f97\u7f51\u7edc\u5b66\u4e60\u5230\u66f4\u5c16\u9510\u7684\u8fb9\u7f18\u548c\u66f4\u7ec6\u8282\u7684\u7eb9\u7406\u3002<\/p>\n\n\n\n<p><strong>\u611f\u77e5\u57df\u635f\u5931<\/strong><\/p>\n\n\n\n<p>\u6587\u7ae0\u4e5f\u63d0\u51fa\u4e86\u4e00\u4e2a\u66f4\u6709\u6548\u7684\u611f\u77e5\u57df\u635f\u5931\uff0c\u4f7f\u7528\u6fc0\u6d3b\u524d\u7684\u7279\u5f81\uff08VGG16\u7f51\u7edc\uff09\u3002<\/p>\n\n\n\n<p>\u611f\u77e5\u57df\u7684\u635f\u5931\u5f53\u524d\u662f\u5b9a\u4e49\u5728\u4e00\u4e2a\u9884\u8bad\u7ec3\u7684\u6df1\u5ea6\u7f51\u7edc\u7684\u6fc0\u6d3b\u5c42\uff0c\u8fd9\u4e00\u5c42\u4e2d\u4e24\u4e2a\u6fc0\u6d3b\u4e86\u7684\u7279\u5f81\u7684\u8ddd\u79bb\u4f1a\u88ab\u6700\u5c0f\u5316\u3002\u4e0e\u6b64\u76f8\u53cd\uff0c\u6587\u7ae0\u4f7f\u7528\u7684\u7279\u5f81\u662f\u6fc0\u6d3b\u524d\u7684\u7279\u5f81\uff0c\u8fd9\u6837\u4f1a\u514b\u670d\u4e24\u4e2a\u7f3a\u70b9\u3002\u7b2c\u4e00\uff0c\u6fc0\u6d3b\u540e\u7684\u7279\u5f81\u662f\u975e\u5e38\u7a00\u758f\u7684\uff0c\u7279\u522b\u662f\u5728\u5f88\u6df1\u7684\u7f51\u7edc\u4e2d\u3002\u8fd9\u79cd\u7a00\u758f\u7684\u6fc0\u6d3b\u63d0\u4f9b\u7684\u76d1\u7763\u6548\u679c\u662f\u5f88\u5f31\u7684\uff0c\u4f1a\u9020\u6210\u6027\u80fd\u4f4e\u4e0b\uff1b\u7b2c\u4e8c\uff0c\u4f7f\u7528\u6fc0\u6d3b\u540e\u7684\u7279\u5f81\u4f1a\u5bfc\u81f4\u91cd\u5efa\u56fe\u50cf\u4e0eGT\u7684\u4eae\u5ea6\u4e0d\u4e00\u81f4\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"383\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-273-1024x383.png\" alt=\"\" class=\"wp-image-6034\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-273-1024x383.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-273-300x112.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-273-768x287.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-273.png 1327w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u4f7f\u7528\u6fc0\u6d3b\u524d\u4e0e\u6fc0\u6d3b\u540e\u7684\u7279\u5f81\u7684\u6bd4\u8f83\uff0c\uff08a\uff09\u4eae\u5ea6\uff1b\uff08b\uff09\u7ec6\u8282<\/figcaption><\/figure>\n\n\n\n<p>\u4f5c\u8005\u5bf9\u4f7f\u7528\u7684\u611f\u77e5\u57df\u635f\u5931\u8fdb\u884c\u4e86\u63a2\u7d22\u3002\u4e0e\u76ee\u524d\u591a\u6570\u4f7f\u7528\u7684\u7528\u4e8e\u56fe\u50cf\u5206\u7c7b\u7684VGG\u7f51\u7edc\u6784\u5efa\u7684\u611f\u77e5\u57df\u635f\u5931\u76f8\u53cd\uff0c\u4f5c\u8005\u63d0\u51fa\u4e00\u79cd\u66f4\u9002\u5408\u4e8e\u8d85\u5206\u8fa8\u7684\u611f\u77e5\u57df\u635f\u5931\uff0c\u8fd9\u4e2a\u635f\u5931\u57fa\u4e8e\u4e00\u4e2a\u7528\u4e8e\u6750\u6599\u8bc6\u522b\u7684<strong>VGG16<\/strong>\u7f51\u7edc\uff08MINCNet\uff09\uff0c\u8fd9\u4e2a\u7f51\u7edc\u66f4\u805a\u7126\u4e8e\u7eb9\u7406\u800c\u4e0d\u662f\u7269\u4f53\u3002<strong>\u5c3d\u7ba1\u8fd9\u6837\u5e26\u6765\u7684\u589e\u76ca\u5f88\u5c0f\uff0c\u4f46\u4f5c\u8005\u4ecd\u7136\u76f8\u4fe1\uff0c\u63a2\u7d22\u5173\u6ce8\u7eb9\u7406\u7684\u611f\u77e5\u57df\u635f\u5931\u5bf9\u8d85\u5206\u8fa8\u81f3\u5173\u91cd\u8981\u3002<\/strong><\/p>\n\n\n\n<h2><strong>\u635f\u5931\u51fd\u6570<\/strong><\/h2>\n\n\n\n<p>\u7ecf\u8fc7\u4e0a\u9762\u5bf9\u7f51\u7edc\u6a21\u5757\u7684\u5b9a\u4e49\u548c\u6784\u5efa\u4ee5\u540e\uff0c\u518d\u5b9a\u4e49\u635f\u5931\u51fd\u6570\uff0c\u5c31\u53ef\u4ee5\u8fdb\u884c\u8bad\u7ec3\u4e86\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u751f\u6210\u5668G\uff0c\u5b83\u7684\u635f\u5931\u51fd\u6570\u4e3a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"388\" height=\"74\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-274.png\" alt=\"\" class=\"wp-image-6035\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-274.png 388w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-274-300x57.png 300w\" sizes=\"(max-width: 388px) 100vw, 388px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"244\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-275-1024x244.png\" alt=\"\" class=\"wp-image-6037\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-275-1024x244.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-275-300x71.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-275-768x183.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-275.png 1058w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u4ee3\u7801\u89e3\u6790\uff1a<\/p>\n\n\n\n<p><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/54473407?utm_id=0\">https:\/\/zhuanlan.zhihu.com\/p\/54473407?utm_id=0<\/a><\/p>\n\n\n\n<p><strong>3.\u63d0\u53d6\u611f\u77e5\u57df\u635f\u5931\u7684\u7f51\u7edc\uff08Perceptual Network\uff09<\/strong><\/p>\n\n\n\n<p>\u6587\u7ae0\u4f7f\u7528\u4e86\u4e00\u4e2a\u7528\u4e8e\u6750\u6599\u8bc6\u522b\u7684<strong>VGG16<\/strong>\u7f51\u7edc\uff08MINCNet\uff09\u6765\u63d0\u53d6\u611f\u77e5\u57df\u7279\u5f81\uff0c\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class MINCNet(nn.Module):\n    def __init__(self):\n        super(MINCNet, self).__init__()\n        self.ReLU = nn.ReLU(True)\n        self.conv11 = nn.Conv2d(3, 64, 3, 1, 1)\n        self.conv12 = nn.Conv2d(64, 64, 3, 1, 1)\n        self.maxpool1 = nn.MaxPool2d(2, stride=2, padding=0, ceil_mode=True)\n        self.conv21 = nn.Conv2d(64, 128, 3, 1, 1)\n        self.conv22 = nn.Conv2d(128, 128, 3, 1, 1)\n        self.maxpool2 = nn.MaxPool2d(2, stride=2, padding=0, ceil_mode=True)\n        self.conv31 = nn.Conv2d(128, 256, 3, 1, 1)\n        self.conv32 = nn.Conv2d(256, 256, 3, 1, 1)\n        self.conv33 = nn.Conv2d(256, 256, 3, 1, 1)\n        self.maxpool3 = nn.MaxPool2d(2, stride=2, padding=0, ceil_mode=True)\n        self.conv41 = nn.Conv2d(256, 512, 3, 1, 1)\n        self.conv42 = nn.Conv2d(512, 512, 3, 1, 1)\n        self.conv43 = nn.Conv2d(512, 512, 3, 1, 1)\n        self.maxpool4 = nn.MaxPool2d(2, stride=2, padding=0, ceil_mode=True)\n        self.conv51 = nn.Conv2d(512, 512, 3, 1, 1)\n        self.conv52 = nn.Conv2d(512, 512, 3, 1, 1)\n        self.conv53 = nn.Conv2d(512, 512, 3, 1, 1)\n\n    def forward(self, x):\n        out = self.ReLU(self.conv11(x))\n        out = self.ReLU(self.conv12(out))\n        out = self.maxpool1(out)\n        out = self.ReLU(self.conv21(out))\n        out = self.ReLU(self.conv22(out))\n        out = self.maxpool2(out)\n        out = self.ReLU(self.conv31(out))\n        out = self.ReLU(self.conv32(out))\n        out = self.ReLU(self.conv33(out))\n        out = self.maxpool3(out)\n        out = self.ReLU(self.conv41(out))\n        out = self.ReLU(self.conv42(out))\n        out = self.ReLU(self.conv43(out))\n        out = self.maxpool4(out)\n        out = self.ReLU(self.conv51(out))\n        out = self.ReLU(self.conv52(out))\n        out = self.conv53(out)\n        return out<\/code><\/pre>\n\n\n\n<p>\u518d\u5f15\u5165\u9884\u8bad\u7ec3\u53c2\u6570\uff0c\u5c31\u53ef\u4ee5\u8fdb\u884c\u7279\u5f81\u63d0\u53d6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class MINCFeatureExtractor(nn.Module):\n    def __init__(self, feature_layer=34, use_bn=False, use_input_norm=True, \\\n                device=torch.device('cpu')):\n        super(MINCFeatureExtractor, self).__init__()\n\n        self.features = MINCNet()\n        self.features.load_state_dict(\n            torch.load('..\/experiments\/pretrained_models\/VGG16minc_53.pth'), strict=True)\n        self.features.eval()\n        <em># No need to BP to variable<\/em>\n        for k, v in self.features.named_parameters():\n            v.requires_grad = False\n\n    def forward(self, x):\n        output = self.features(x)\n        return output<\/code><\/pre>\n\n\n\n<h2><strong>\u7f51\u7edc\u63d2\u503c\u601d\u60f3<\/strong><\/h2>\n\n\n\n<p>\u4e3a\u4e86\u5e73\u8861\u611f\u77e5\u8d28\u91cf\u548cPSNR\u7b49\u8bc4\u4ef7\u503c\uff0c\u4f5c\u8005\u63d0\u51fa\u4e86\u4e00\u4e2a\u7075\u6d3b\u4e14\u6709\u6548\u7684\u65b9\u6cd5&#8212;\u7f51\u7edc\u63d2\u503c\u3002\u5177\u4f53\u800c\u8a00\uff0c\u4f5c\u8005\u9996\u5148\u57fa\u4e8ePSNR\u65b9\u6cd5\u8bad\u7ec3\u7684\u5f97\u5230\u7684\u7f51\u7edcG_PSNR\uff0c\u7136\u540e\u518d\u7528\u57fa\u4e8eGAN\u7684\u7f51\u7edcG_GAN\u8fdb\u884cfinetune\u3002<\/p>\n\n\n\n<p>\u7136\u540e\uff0c\u5bf9\u8fd9\u4e24\u4e2a\u7f51\u7edc\u76f8\u5e94\u7684\u7f51\u7edc\u53c2\u6570\u8fdb\u884c\u63d2\u503c\u5f97\u5230\u4e00\u4e2a\u63d2\u503c\u540e\u7684\u7f51\u7edcG_INTERP\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"494\" height=\"75\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-276.png\" alt=\"\" class=\"wp-image-6040\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-276.png 494w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-276-300x46.png 300w\" sizes=\"(max-width: 494px) 100vw, 494px\" \/><\/figure>\n\n\n\n<p>\u8fd9\u6837\u5c31\u53ef\u4ee5\u901a\u8fc7\u00a0\u03b1\u00a0\u503c\u6765\u8c03\u6574\u6548\u679c<\/p>\n\n\n\n<h2><strong>\u8bad\u7ec3\u7ec6\u8282<\/strong><\/h2>\n\n\n\n<p>\u8bad\u7ec3\u7ec6\u8282<\/p>\n\n\n\n<p>\u653e\u5927\u500d\u6570\uff1a4\uff0cmini-batch\uff1a16<\/p>\n\n\n\n<p>\u901a\u8fc7Matlab\u7684bicubic\u51fd\u6570\u5bf9HR\u56fe\u50cf\u8fdb\u884c\u964d\u91c7\u6837\u5f97\u5230LR\u56fe\u50cf\u3002<\/p>\n\n\n\n<p>HR patch\u5927\u5c0f\uff1a128\u00d7128\uff08\u5b9e\u9a8c\u53d1\u73b0\u4f7f\u7528\u5927\u7684patch\u65f6\uff0c\u8bad\u7ec3\u4e00\u4e2a\u6df1\u5c42\u7f51\u7edc\u6548\u679c\u4f1a\u66f4\u597d\uff0c\u56e0\u4e3a\u4e00\u4e2a\u589e\u5927\u7684\u611f\u53d7\u57df\u4f1a\u5e2e\u52a9\u6a21\u578b\u6355\u6349\u66f4\u5177\u6709\u8bed\u4e49\u7684\u4fe1\u606f\uff09<\/p>\n\n\n\n<p>\u8bad\u7ec3\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n<p>1.\u8bad\u7ec3\u4e00\u4e2a\u57fa\u4e8ePSNR\u6307\u6807\u7684\u6a21\u578b\uff08L1 Loss\uff09<\/p>\n\n\n\n<p>\u521d\u59cb\u5316\u5b66\u4e60\u7387\uff1a2\u00d71e-4<\/p>\n\n\n\n<p>\u6bcf200000\u4e2amini-batch\u5b66\u4e60\u7387\u9664\u4ee52<\/p>\n\n\n\n<p>2.\u4ee51\u4e2d\u8bad\u7ec3\u7684\u6a21\u578b\u4f5c\u4e3a\u751f\u6210\u5668\u7684\u521d\u59cb\u5316<\/p>\n\n\n\n<p>\u03bb=5\u00d710\u22123,\u03b7=0.01,\u03b2=0.2&nbsp;\uff08\u6b8b\u5deescaling\u7cfb\u6570\uff09<\/p>\n\n\n\n<p>\u521d\u59cb\u5b66\u4e60\u7387\uff1a1e-4\uff0c\u5e76\u572850k\uff0c100k\uff0c200k\uff0c300k\u8fed\u4ee3\u540e\u51cf\u534a\u3002<\/p>\n\n\n\n<p>\u4e00\u4e2a\u57fa\u4e8e\u50cf\u7d20\u635f\u5931\u51fd\u6570\u8fdb\u884c\u4f18\u5316\u7684\u9884\u8bad\u7ec3\u6a21\u578b\u4f1a\u5e2e\u52a9\u57fa\u4e8eGAN\u7684\u6a21\u578b\u751f\u6210\u66f4\u7b26\u5408\u89c6\u89c9\u7684\u7ed3\u679c\uff0c\u539f\u56e0\u5982\u4e0b\uff1a1.\u53ef\u4ee5\u907f\u514d\u751f\u6210\u5668\u4e0d\u5e0c\u671b\u7684\u5c40\u90e8\u6700\u4f18\uff1b2.\u518d\u9884\u8bad\u7ec3\u4ee5\u540e\uff0c\u5224\u522b\u5668\u6240\u5f97\u5230\u7684\u8f93\u5165\u56fe\u50cf\u7684\u8d28\u91cf\u662f\u76f8\u5bf9\u8f83\u597d\u7684\uff0c\u800c\u4e0d\u662f\u5b8c\u5168\u521d\u59cb\u5316\u7684\u56fe\u50cf\uff0c\u8fd9\u6837\u4f1a\u4f7f\u5224\u522b\u5668\u66f4\u5173\u6ce8\u5230\u7eb9\u7406\u7684\u5224\u522b\u3002<\/p>\n\n\n\n<p>\u4f18\u5316\u5668\uff1aAdam(&nbsp;\u03b21=0.9,\u03b22=0.999&nbsp;)\uff1b\u4ea4\u66ff\u66f4\u65b0\u751f\u6210\u5668\u548c\u5224\u522b\u5668\uff0c\u76f4\u5230\u6536\u655b\u3002<\/p>\n\n\n\n<p>\u751f\u6210\u5668\u7684\u8bbe\u7f6e\uff1a1.16\u5c42\uff08\u57fa\u672c\u7684\u6b8b\u5dee\u7ed3\u6784\uff09 2.23\u5c42\uff08RDDB\uff09<\/p>\n\n\n\n<p>\u6570\u636e\u96c6\uff1aDIV2K\uff0cFlickr2K\uff0cOST\uff1b(\u6709\u4e30\u5bcc\u7eb9\u7406\u4fe1\u606f\u7684\u6570\u636e\u96c6\u4f1a\u662f\u6a21\u578b\u4ea7\u751f\u66f4\u81ea\u7136\u7684\u7ed3\u679c)<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" width=\"540\" height=\"210\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-278.png\" alt=\"\" class=\"wp-image-6045\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-278.png 540w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-278-300x117.png 300w\" sizes=\"(max-width: 540px) 100vw, 540px\" \/><figcaption>\u53ef\u4ee5\u770b\u5230\uff0cESRGAN\u5f97\u5230\u7684\u56fe\u50cfPSNR\u503c\u4e0d\u9ad8\uff0c\u4f46\u662f\u4ece\u89c6\u89c9\u6548\u679c\u4e0a\u770b\u4f1a\u66f4\u597d\uff0cPercpetual Index\u503c\u66f4\u5c0f\uff08\u8d8a\u5c0f\u8d8a\u597d\uff09\uff0c\u800c\u4e14ESRGAN\u5728 PIRM-SR \u7ade\u8d5b\u4e0a\u4e5f\u83b7\u5f97\u4e86\u7b2c\u4e00\u540d\uff08\u5728Percpetual Index\u6307\u6807\u4e0a\uff09\u3002<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u7ecf\u8fc7\u5b9e\u9a8c\u4ee5\u540e\uff0c\u4f5c\u8005\u5f97\u51fa\u7ed3\u8bba\uff1a<\/p>\n\n\n\n<p>1.\u53bb\u6389BN\uff1a\u5e76\u6ca1\u6709\u964d\u4f4e\u7f51\u7edc\u7684\u6027\u80fd\uff0c\u800c\u4e14\u8282\u7701\u4e86\u8ba1\u7b97\u8d44\u6e90\u548c\u5185\u5b58\u5360\u7528\u3002\u800c\u4e14\u53d1\u73b0\u5f53\u7f51\u7edc\u53d8\u6df1\u53d8\u590d\u6742\u65f6\uff0c\u5e26BN\u5c42\u7684\u6a21\u578b\u66f4\u503e\u5411\u4e8e\u4ea7\u751f\u5f71\u54cd\u89c6\u89c9\u6548\u679c\u7684\u4f2a\u5f71\u3002<\/p>\n\n\n\n<p>2.\u4f7f\u7528\u6fc0\u6d3b\u524d\u7684\u7279\u5f81\uff1a\u5f97\u5230 \u7684\u56fe\u50cf\u7684\u4eae\u5ea6\u66f4\u51c6\u786e\uff0c\u800c\u4e14\u53ef\u4ee5\u4ea7\u751f\u66f4\u5c16\u9510\u7684\u8fb9\u7f18\u548c\u66f4\u4e30\u5bcc\u7684\u7ec6\u8282\u3002<\/p>\n\n\n\n<p>3.RaGAN\uff1a\u4ea7\u751f\u66f4\u5c16\u9510\u7684\u8fb9\u7f18\u548c\u66f4\u4e30\u5bcc\u7684\u7ec6\u8282\u3002<\/p>\n\n\n\n<p>4.RDDB\uff1a\u66f4\u52a0\u63d0\u5347\u6062\u590d\u5f97\u5230\u7684\u7eb9\u7406\uff08\u56e0\u4e3a\u6df1\u5ea6\u6a21\u578b\u5177\u6709\u5f3a\u5927\u7684\u8868\u793a\u80fd\u529b\u6765\u6355\u83b7\u8bed\u4e49\u4fe1\u606f\uff09\uff0c\u800c\u4e14\u53ef\u4ee5\u53bb\u9664\u566a\u58f0\u3002<\/p>\n\n\n\n<p><strong>\u7f51\u7edc\u63d2\u503c\u5b9e\u9a8c<\/strong><\/p>\n\n\n\n<p>\u4e3a\u4e86\u5e73\u8861\u89c6\u89c9\u6548\u679c\u548cPSNR\u7b49\u6027\u80fd\u6307\u6807\uff0c\u4f5c\u8005\u5bf9\u7f51\u7edc\u63d2\u503c\u53c2\u6570&nbsp;\u03b1&nbsp;\u7684\u53d6\u503c\u8fdb\u884c\u4e86\u5b9e\u9a8c\uff0c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"603\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-277-1024x603.png\" alt=\"\" class=\"wp-image-6043\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-277-1024x603.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-277-300x177.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-277-768x452.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/08\/image-277.png 1385w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2><strong>\u603b\u7ed3<\/strong><\/h2>\n\n\n\n<p>\u6587\u7ae0\u63d0\u51fa\u7684ESRGAN\u5728SRGAN\u7684\u57fa\u7840\u4e0a\u505a\u51fa\u4e86\u6539\u8fdb\uff0c\u5305\u62ec\u53bb\u9664BN\u5c42\uff0c\u57fa\u672c\u7ed3\u6784\u6362\u6210RDDB\uff0c\u6539\u8fdbGAN\u4e2d\u5224\u522b\u5668\u7684\u5224\u522b\u76ee\u6807\uff0c\u4ee5\u53ca\u4f7f\u7528\u6fc0\u6d3b\u524d\u7684\u7279\u5f81\u6784\u6210\u611f\u77e5\u57df\u635f\u5931\u51fd\u6570\uff0c\u5b9e\u9a8c\u8bc1\u660e\u8fd9\u4e9b\u6539\u8fdb\u5bf9\u63d0\u5347\u8f93\u51fa\u56fe\u50cf\u7684\u89c6\u89c9\u6548\u679c\u90fd\u6709\u4f5c\u7528\u3002\u6b64\u5916\uff0c\u4f5c\u8005\u4e5f\u4f7f\u7528\u4e86\u4e00\u4e9b\u6280\u5de7\u6765\u63d0\u5347\u7f51\u7edc\u7684\u6027\u80fd\uff0c\u5305\u62ec\u5bf9\u6b8b\u5dee\u4fe1\u606f\u7684scaling\uff0c\u4ee5\u53ca\u66f4\u5c0f\u7684\u521d\u59cb\u5316\u3002\u6700\u540e\uff0c\u4f5c\u8005\u4f7f\u7528\u4e86\u4e00\u79cd\u7f51\u7edc\u63d2\u503c\u7684\u65b9\u6cd5\u6765\u5e73\u8861\u8f93\u51fa\u56fe\u50cf\u7684\u89c6\u89c9\u6548\u679c\u548cPSNR\u7b49\u6307\u6807\u503c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bba\u6587\uff1ahttps:\/\/arxiv.org\/abs\/1809.00219 github: https:\/\/git &hellip; <a href=\"http:\/\/139.9.1.231\/index.php\/2022\/08\/22\/esrgan\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">ESRGAN\u56fe\u50cf\u8d85\u5206\u8fa8<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18,9],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/5933"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=5933"}],"version-history":[{"count":23,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/5933\/revisions"}],"predecessor-version":[{"id":6048,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/5933\/revisions\/6048"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=5933"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=5933"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=5933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}