{"id":274,"date":"2022-03-19T06:53:10","date_gmt":"2022-03-19T06:53:10","guid":{"rendered":"https:\/\/blog.liguanxin.cn\/?p=274"},"modified":"2022-03-20T07:47:55","modified_gmt":"2022-03-20T07:47:55","slug":"stylegan%e5%92%8cstylegan2","status":"publish","type":"post","link":"https:\/\/blog.liguanxin.cn\/index.php\/2022\/03\/19\/stylegan%e5%92%8cstylegan2\/","title":{"rendered":"StyleGAN\u548cStyleGAN2"},"content":{"rendered":"<h2>StyleGAN<\/h2>\n<p><strong>StyleGAN\u662f\u7531Nvidia\u7814\u7a76\u4eba\u5458\u4e8e2018\u5e7412\u6708\u63a8\u51fa\u7684\u751f\u6210\u5bf9\u6297\u7f51\u7edc\uff0c\u5e76\u4e8e2019\u5e742\u6708\u53ef\u7528\u3002<br \/>\nStyleGAN\u4f9d\u8d56\u4e8eNvidia\u7684CUDA\u8f6f\u4ef6\uff0cGPU\u548cGoogle\u7684TensorFlow\u3002<br \/>\nStyleGAN\u7684\u7b2c\u4e8c\u4e2a\u7248\u672c\uff08\u79f0\u4e3aStyleGAN2\uff09\u4e8e2020\u5e742\u67085\u65e5\u53d1\u5e03\u3002\u5b83\u6d88\u9664\u4e86\u4e00\u4e9b\u7279\u5f81\u6027\u4f2a\u5f71\u5e76\u63d0\u9ad8\u4e86\u56fe\u50cf\u8d28\u91cf\u3002<\/strong><\/p>\n<p>StyleGAN\u662f\u4e00\u4e2a\u751f\u6210\u4eba\u8138\u7684GAN\u7f51\u7edc\u3002\u6574\u4e2a\u7f51\u7edc\u7ed3\u6784\u8fd8\u662f\u4fdd\u6301\u4e86PG-GAN\u7684\u7ed3\u6784\uff0c\u4ece\u4f4e\u5206\u8fa8\u7387\u5230\u9ad8\u5206\u8fa8\u7387\u6e10\u53d8\u7684\u8bad\u7ec3\u65b9\u6cd5\u3002<\/p>\n<hr \/>\n<h2>\u57fa\u4e8e\u98ce\u683c\u8fc1\u79fb\u7684generator<\/h2>\n<p><img src=\"https:\/\/blog.liguanxin.cn\/wp-content\/uploads\/2022\/03\/\u5fae\u4fe1\u622a\u56fe_20220319132135.png\" alt=\"\" \/><br \/>\n\u4f20\u7edf\u7684\u751f\u6210\u5668\u628a\u6f5c\u5728\u7279\u5f81\u7f16\u7801\uff08\u968f\u673a\u53d8\u91cf\u6216\u9690\u85cf\u53d8\u91cf\uff09\u76f4\u63a5\u5582\u7ed9\u8f93\u5165\u5c42\u3002<\/p>\n<p>\u672c\u6587\u65b9\u6cd5\u662f\u628a\u6f5c\u5728\u7279\u5f81\u7f16\u7801\u5148\u7ecf\u8fc7\u4e00\u4e2aMapping\u7f51\u7edc\u6295\u5c04\u5230W\u7a7a\u95f4\uff0c\u7136\u540e\u63a7\u5236\u751f\u6210\u5668\u901a\u8fc7\u5728\u6bcf\u4e2a\u5377\u79ef\u5c42\u4e0a\u7684\u81ea\u9002\u5e94\u5b9e\u4f8b\u5f52\u4e00\u5316(AdaIN)\u3002<br \/>\nZ \u548c W \u7684\u7ef4\u5ea6\u90fd\u662f512\u7ef4\u3002<br \/>\n\u6bcf\u6b21\u5377\u79ef\u540e\u52a0\u5165\u9ad8\u65af\u566a\u58f0\uff0c\u201cA\u201d\u4ee3\u8868\u53ef\u5b66\u4e60\u7684\u4eff\u5c04\u53d8\u6362\uff0c\u201cB\u201d\u4ee3\u8868\u53ef\u5b66\u4e60\u7684\u901a\u9053\u6bd4\u4f8b\u56e0\u5b50\u3002A \u662f\u7531 w \u8f6c\u6362\u5f97\u5230\u7684\u4eff\u5c04\u53d8\u6362\uff0c\u7528\u4e8e\u63a7\u5236\u751f\u6210\u56fe\u50cf\u7684\u98ce\u683c\uff0cB \u662f\u8f6c\u6362\u540e\u7684\u968f\u673a\u566a\u58f0\uff0c\u7528\u4e8e\u4e30\u5bcc\u751f\u6210\u56fe\u50cf\u7684\u7ec6\u8282\uff0c\u5373\u6bcf\u4e2a\u5377\u79ef\u5c42\u90fd\u80fd\u6839\u636e\u8f93\u5165\u7684A\u6765\u8c03\u6574&quot;style&quot;\u3002Mapping\u7f51\u7edcf\u75318\u5c42FC\u5c42\uff08\u5168\u8fde\u63a5\u5c42\uff09\u6784\u6210\uff0c\u800c\u7efc\u5408\u7f51\u7edcg\u753118\u5c42\u6784\u6210\u6bcf\u4e2a\u5206\u8fa8\u7387\u5404\u4e24\u5c42\uff08<span class=\"katex-eq\" data-katex-display=\"false\">4^2-1024^2<\/span>\uff09\u3002\u8f93\u5165\u7684\u6700\u540e\u4e00\u5c42\u662f\u4e00\u4e2a<span class=\"katex-eq\" data-katex-display=\"false\">1*1<\/span>\u5377\u79ef\u8f6c\u6362\u4e3aRGB\u3002<\/p>\n<h4>\u4eff\u5c04\u53d8\u6362\uff0c\u53c8\u79f0\u4eff\u5c04\u6620\u5c04\uff0c\u662f\u6307\u5728\u51e0\u4f55\u4e2d\uff0c\u4e00\u4e2a\u5411\u91cf\u7a7a\u95f4\u8fdb\u884c\u4e00\u6b21\u7ebf\u6027\u53d8\u6362\u5e76\u63a5\u4e0a\u4e00\u4e2a\u5e73\u79fb\uff0c\u53d8\u6362\u4e3a\u53e6\u4e00\u4e2a\u5411\u91cf\u7a7a\u95f4\u3002<\/h4>\n<hr \/>\n<h3>\u4e3a\u4ec0\u4e48\u8981\u628az\u6295\u5c04\u5230w\uff1f\uff08\u4ec0\u4e48\u662f\u89e3\u7ea0\u7f20\u8bed\u4e49\uff1f\uff09<\/h3>\n<p>\u7b54\uff1a\u5982\u4e0b\u56fe\uff0c\u5728\u6570\u636e\u96c6\u4e2d\uff0c\u5047\u8bbe\u6709\u4e24\u4e2a\u5c5e\u6027\uff1a\u7537\u6027\u5316\u548c\u957f\u5934\u53d1\u3002\u800c\u6570\u636e\u96c6\u4e2d\u901a\u5e38\u7f3a\u5c11\u7537\u6027\u957f\u53d1\u7684\u6837\u672c\u3002(a)\u8868\u793a\u6570\u636e\u96c6\u4e2d\u7684\u5b9e\u9645\u5206\u5e03\u3002\u4f46\u662f\u5982\u679c\u5047\u8bbe\u5206\u5e03\u5747\u5300\u7684\u8bdd\uff0cz\u7a7a\u95f4\u5206\u5e03\u4f1a\u5f53\u4f5c\u4e00\u4e2a\u6ee1\u8db3\u9ad8\u65af\u5206\u5e03\u7684\u5706\u5f62\uff0c\u5982(b)\u3002\u628az\u6295\u5c04\u5230w\u5c31\u662f\u4e3a\u4e86\u8ba9\u8fd9\u4e2a\u5706\u5f62\u8fd8\u539f\u56de\u5b9e\u9645\u7684\u5206\u5e03\u60c5\u51b5\u4e5f\u5c31\u662f(c)\u3002<br \/>\n<img src=\"https:\/\/blog.liguanxin.cn\/wp-content\/uploads\/2022\/03\/\u5fae\u4fe1\u622a\u56fe_20220319142340.png\" alt=\"\" \/><\/p>\n<h3>Style mixing<\/h3>\n<p>\u4e0b\u56fe\u4e2d\u7b2c\u4e00\u884c\u662f source B\uff0c \u7b2c\u4e00\u5217\u662fsource A\uff0csource A\u548c source B\u7684\u6bcf\u5f20\u56fe\u7247\u7531\u5404\u81ea\u76f8\u5e94\u7684latent code\u751f\u6210\uff0c\u5269\u4f59\u7684\u56fe\u7247\u662f\u5bf9 source A\u548c souce B\u98ce\u683c\u7684\u7ec4\u5408\u3002Style mixing\u7684\u672c\u610f\u662f\u53bb\u627e\u5230\u63a7\u5236\u4e0d\u540cstyle\u7684latent code\u7684\u533a\u57df\u4f4d\u7f6e\uff0c\u5177\u4f53\u505a\u6cd5\u662f\u5c06\u4e24\u4e2a\u4e0d\u540c\u7684latent code z1\u548cz2\u8f93\u5165\u5230mappint network\u4e2d\uff0c\u5206\u522b\u5f97\u5230w1\u548cw2\uff0c\u5206\u522b\u4ee3\u8868\u4e24\u79cd\u4e0d\u540c\u7684style\uff0c\u7136\u540e\u5728Synthesis network\u4e2d\u968f\u673a\u9009\u4e00\u4e2a\u4e2d\u95f4\u7684\u4ea4\u53c9\u70b9\uff0c\u4ea4\u53c9\u70b9\u4e4b\u524d\u7684\u90e8\u5206\u4f7f\u7528w1\uff0c\u4ea4\u53c9\u70b9\u4e4b\u540e\u7684\u90e8\u5206\u4f7f\u7528w2\uff0c\u751f\u6210\u7684\u56fe\u50cf\u5e94\u8be5\u540c\u65f6\u5177\u6709source A\u548csource B\u7684\u7279\u5f81\uff0c\u79f0\u4e3astyle mixing\u3002<\/p>\n<p>\u6839\u636e\u4ea4\u53c9\u70b9\u9009\u53d6\u4f4d\u7f6e\u7684\u4e0d\u540c\uff0cstyle\u7ec4\u5408\u7684\u7ed3\u679c\u4e5f\u4e0d\u540c\uff0c\u5982\u4e0b\u56fe\uff1a<br \/>\n<img src=\"https:\/\/blog.liguanxin.cn\/wp-content\/uploads\/2022\/03\/\u5fae\u4fe1\u622a\u56fe_20220319143021.png\" alt=\"\" \/><img src=\"https:\/\/blog.liguanxin.cn\/wp-content\/uploads\/2022\/03\/\u5fae\u4fe1\u622a\u56fe_20220319143037.png\" alt=\"\" \/><\/p>\n<h3>Truncation Trick<\/h3>\n<p>\u4ece\u6570\u636e\u5206\u5e03\u6765\u8bf4\uff0c\u4f4e\u6982\u7387\u5bc6\u5ea6\u7684\u6570\u636e\u5728\u7f51\u7edc\u4e2d\u7684\u8868\u8fbe\u80fd\u529b\u5f88\u5f31\uff0c\u76f4\u89c2\u7406\u89e3\u5c31\u662f\uff0c\u4f4e\u6982\u7387\u5bc6\u5ea6\u7684\u6570\u636e\u51fa\u73b0\u6b21\u6570\u5c11\uff0c\u80fd\u5f71\u54cd\u7f51\u7edc\u68af\u5ea6\u7684\u673a\u4f1a\u4e5f\u5c11\uff0c\u4f46\u5e76\u4e0d\u4ee3\u8868\u4f4e\u6982\u7387\u5bc6\u5ea6\u7684\u6570\u636e\u4e0d\u91cd\u8981\u3002\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5206\u5e03\u7684\u6574\u4f53\u5bc6\u5ea6\uff0c\u628a\u5206\u5e03\u7a00\u758f\u7684\u6570\u636e\u70b9\u90fd\u805a\u62e2\u5230\u4e00\u8d77\uff0c\u7c7b\u4f3c\u4e8ePCA\uff0c\u505a\u6cd5\u5f88\u7b80\u5355\uff0c\u9996\u5148\u627e\u5230\u6570\u636e\u4e2d\u7684\u4e00\u4e2a\u5e73\u5747\u70b9\uff0c\u7136\u540e\u8ba1\u7b97\u5176\u4ed6\u6240\u6709\u70b9\u5230\u8fd9\u4e2a\u5e73\u5747\u70b9\u7684\u8ddd\u79bb\uff0c\u5bf9\u6bcf\u4e2a\u8ddd\u79bb\u6309\u7167\u7edf\u4e00\u6807\u51c6\u8fdb\u884c\u538b\u7f29\uff0c\u8fd9\u6837\u5c31\u80fd\u5c06\u6570\u636e\u70b9\u90fd\u805a\u62e2\u4e86\uff0c\u4f46\u662f\u53c8\u4e0d\u4f1a\u6539\u53d8\u70b9\u4e0e\u70b9\u4e4b\u95f4\u7684\u8ddd\u79bb\u5173\u7cfb\u3002<br \/>\n<img src=\"https:\/\/blog.liguanxin.cn\/wp-content\/uploads\/2022\/03\/\u5fae\u4fe1\u622a\u56fe_20220319143548.png\" alt=\"\" \/><\/p>\n<h2>StyleGAN2<\/h2>\n<p>StyleGAN2\u7684\u51fa\u73b0\u662f\u56e0\u4e3aStyleGAN\u5b58\u5728\u7455\u75b5\uff0c\u5c11\u91cf\u751f\u6210\u7684\u56fe\u7247\u6709\u660e\u663e\u7684\u6c34\u73e0\u3002<br \/>\n<img src=\"https:\/\/blog.liguanxin.cn\/wp-content\/uploads\/2022\/03\/\u5fae\u4fe1\u622a\u56fe_20220319144011.png\" alt=\"\" \/><br \/>\n\u5bfc\u81f4\u6c34\u73e0\u7684\u539f\u56e0\u4f5c\u8005\u8ba4\u4e3a\u662fAdain\u64cd\u4f5c\uff0cAdain\u5bf9\u6bcf\u4e2afeature map\u8fdb\u884c\u5f52\u4e00\u5316\uff0c\u56e0\u6b64\u6709\u53ef\u80fd\u4f1a\u7834\u574f\u6389feature\u4e4b\u95f4\u7684\u4fe1\u606f\u3002\u6539\u4e3a\u5982\u4e0b\u7ed3\u6784\u4e4b\u540e\uff0c\u6c34\u73e0\u5c31\u6d88\u5931\u4e86\u3002<br \/>\n<img src=\"https:\/\/blog.liguanxin.cn\/wp-content\/uploads\/2022\/03\/\u5fae\u4fe1\u622a\u56fe_20220319144909.png\" alt=\"\" \/><\/p>\n<h3>mod\u548cdemod<\/h3>\n<p><img src=\"https:\/\/blog.liguanxin.cn\/wp-content\/uploads\/2022\/03\/\u5fae\u4fe1\u622a\u56fe_20220319170700.png\" alt=\"\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>StyleGAN StyleGAN\u662f\u7531Nvidia\u7814\u7a76\u4eba\u5458\u4e8e2018\u5e7412\u6708\u63a8\u51fa\u7684\u751f\u6210\u5bf9\u6297\u7f51\u7edc\uff0c\u5e76\u4e8e2019\u5e74 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[22,11,23],"_links":{"self":[{"href":"https:\/\/blog.liguanxin.cn\/index.php\/wp-json\/wp\/v2\/posts\/274"}],"collection":[{"href":"https:\/\/blog.liguanxin.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.liguanxin.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.liguanxin.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.liguanxin.cn\/index.php\/wp-json\/wp\/v2\/comments?post=274"}],"version-history":[{"count":7,"href":"https:\/\/blog.liguanxin.cn\/index.php\/wp-json\/wp\/v2\/posts\/274\/revisions"}],"predecessor-version":[{"id":302,"href":"https:\/\/blog.liguanxin.cn\/index.php\/wp-json\/wp\/v2\/posts\/274\/revisions\/302"}],"wp:attachment":[{"href":"https:\/\/blog.liguanxin.cn\/index.php\/wp-json\/wp\/v2\/media?parent=274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.liguanxin.cn\/index.php\/wp-json\/wp\/v2\/categories?post=274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.liguanxin.cn\/index.php\/wp-json\/wp\/v2\/tags?post=274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}