{"id":648,"date":"2024-04-15T22:53:56","date_gmt":"2024-04-15T14:53:56","guid":{"rendered":"http:\/\/tobykskgd.life\/?p=648"},"modified":"2024-11-14T22:19:05","modified_gmt":"2024-11-14T14:19:05","slug":"27","status":"publish","type":"post","link":"https:\/\/tobykskgd.life\/index.php\/27\/","title":{"rendered":"\u6d45\u8c08\u56fe\u50cf\u751f\u6210\u6a21\u578bDiffusion Model\u539f\u7406"},"content":{"rendered":"\n

\u3010\u6d45\u8c08\u56fe\u50cf\u751f\u6210\u6a21\u578bDiffusion Model\u539f\u7406\u3011\u674e\u5b8f\u6bc52023\u6625\u673a\u5668\u5b66\u4e60\u8bfe\u7a0b\u7b14\u8bb0<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u8003\u8651\u5230\u4e2a\u4eba\u5728\u4e00\u4e9b\u95ee\u9898\u4e0a\u9700\u8981\u674e\u5b8f\u6bc5\u6559\u6388\u57282023\u5e74\u8bfe\u7a0b\u4e2d\u8bb2\u5230\u7684\u5185\u5bb9\u8865\u5145\uff0c\u6240\u4ee5\u6211\u4f1a\u628a\u90e8\u5206\u674e\u5b8f\u6bc5\u6559\u6388\u57282023\u5e74\u7684\u8bfe\u7a0b\u5185\u5bb9\u63d0\u4e0a\u6765\u6311\u7740\u5b66\u4e60\uff0c\u56e0\u4e3a\u662f\u6311\u7740\u770b\u7684\uff0c\u6211\u4e5f\u4e0d\u77e5\u9053\u4f1a\u4e0d\u4f1a\u5168\u90e8\u770b\u5b8c\uff0c\u6240\u4ee5\u8fd9\u91cc\u5c31\u4e0d\u5206EP\u4e86\u3002\u8bfe\u7a0b\u7684\u5730\u5740\uff1a\u3010\u6388\u6743\u3011\u674e\u5b8f\u6bc52023\u6625\u673a\u5668\u5b66\u4e60\u8bfe\u7a0b_\u54d4\u54e9\u54d4\u54e9_bilibili<\/a>\u3002<\/p>\n\n\n\n

\n\n\n\n

\u672c\u6b21\u535a\u5ba2\u5185\u5bb9\u901a\u8fc7\u8457\u540d\u7684DDPM\uff08Denoising Diffusion Probabilistic Models\uff09\u6765\u6d45\u8c08\u56fe\u50cf\u751f\u6210\u6a21\u578bDiffusion Model\u7684\u539f\u7406\u3002Diffusion Model\u662f\u8fd1\u51e0\u5e74\u6bd4\u8f83\u70ed\u95e8\u7684\u56fe\u50cf\u751f\u6210\u6a21\u578b\u3002<\/p>\n\n\n\n

\u6211\u4eec\u5148\u6765\u8ba8\u8bba\u4e00\u4e0bDiffusion Model\u662f\u5982\u4f55\u8fd0\u4f5c\u7684\u3002<\/p>\n\n\n\n

\u6211\u4eec\u4f1a\u628adistribution\u4e2dsimple\u51fa\u6765\u7684\u5411\u91cf\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u5411\u91cf\u6700\u540e\u8981\u53d8\u5316\u5230\u6211\u4eec\u8f93\u51fa\u56fe\u50cf\u7684\u6837\u5b50\uff0c\u6240\u4ee5\u8fd9\u91ccsimple\u51fa\u6765\u7684\u5411\u91cf\u5927\u5c0f\u9700\u8981\u548c\u6700\u540e\u6211\u4eec\u671f\u671b\u8f93\u51fa\u7684\u56fe\u50cf\u4e00\u81f4\u3002\u9996\u5148\u8fd9\u4e2asimple\u51fa\u6765\u7684\u5411\u91cf\u4e00\u5f00\u59cb\u80af\u5b9a\u662f\u6211\u4eec\u770b\u4e0d\u61c2\u7684\u6742\u8baf\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u7528\u4e00\u4e2aDenoise\u7684\u795e\u7ecf\u7f51\u7edc\uff0c\u8ba9\u4e00\u5f00\u59cb\u7684\u8fd9\u4e2avector\u901a\u8fc7Denoise\u5f97\u5230\u53bb\u9664\u6742\u8baf\u7684\u56fe\u50cf\u3002\u90a3\u8fd9\u4e2a\u53bb\u9664\u6742\u8baf\u7684Denoise\u6211\u4eec\u4f1a\u53cd\u590d\u901a\u8fc7\u5f88\u591a\u6b21\uff0c\u800c\u4e14\u8fd9\u4e2aDenoise\u7684\u6b21\u6570\u662f\u6211\u4eec\u4e8b\u5148\u56fa\u5b9a\u7684\u3002\u6240\u4ee5Diffusion Model\u7b80\u5355\u5730\u8bf4\u5c31\u662f\u8ba9distribution\u4e2dsimple\u51fa\u6765\u7684\u5411\u91cf\u4e0d\u65ad\u7ecf\u8fc7Denoise\u53bb\u9664\u6742\u8baf\uff0c\u6700\u7ec8\u5f97\u5230\u6e05\u6670\u7684\u56fe\u7247\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u201c\u5728\u6211\u5f00\u59cb\u5de5\u4f5c\u4e4b\u524d\uff0c\u96d5\u5851\u5df2\u7ecf\u5728\u5927\u7406\u77f3\u5757\u5185\u5b8c\u6210\u4e86\u3002\u5b83\u662f\u5df2\u7ecf\u6709\u4e86\uff0c\u6211\u53ea\u9700\u8981\u51ff\u6389\u591a\u4f59\u7684\u6750\u6599\u3002\u201d\u2014\u2014\u7c73\u5f00\u6717\u57fa\u7f57\u3002<\/p>\n\n\n\n

\u5176\u5b9eDiffusion Model\u4ea7\u751f\u56fe\u50cf\u7684\u539f\u7406\u4e5f\u548c\u7c73\u5f00\u6717\u57fa\u7f57\u53e3\u4e2d\u7684\u96d5\u5851\u4e00\u6837\uff1a\u672c\u6765\u56fe\u7247\u5c31\u5df2\u7ecf\u5728\u6742\u8baf\u91cc\u9762denoise\u53ea\u662f\u628a\u6742\u8baf\u90e8\u5206\u8fc7\u6ee4\u6389\u7f62\u4e86\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u8d1f\u8d23\u628a\u56fe\u50cf\u91cc\u6742\u8baf\u8fc7\u6ee4\u6389\u7684network\u5c31\u662fDenoise\u3002\u4e0a\u9762\u8bf4\u4f1a\u628a\u56fe\u50cf\u4e00\u904d\u4e00\u904d\u5730\u8fc7\u8fd9\u4e2aDenoise\uff0c\u4f46\u5176\u5b9e\u8fd9\u4e2aDenoise\u672c\u8eab\u662f\u540c\u4e00\u4e2a\u3002\u6240\u4ee5\u8fd9\u91cc\u7684Denoise\u7684module\u6709\u4e24\u4e2a\u8f93\u5165\uff0c\u9664\u4e86\u56fe\u50cf\u4ee5\u5916\uff0c\u8fd8\u6709\u4e00\u4e2a\u989d\u5916\u7684\u6570\u5b57\u4f5c\u4e3a\u8f93\u5165\uff0c\u8fd9\u4e2a\u6570\u5b57\u5c31\u662f\u4e0a\u9762\u8bf4\u7684\u76ee\u524dstep\u7684\u6b65\u6570\uff0c\u544a\u8bc9Denoise\u73b0\u5728\u5728\u54ea\u4e2astep\uff0c\u4ee3\u8868\u76ee\u524d\u8f93\u5165\u56fe\u50cf\u7684\u6742\u8baf\u5927\u5c0f\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u90a3\u524d\u9762\u8bf4\u4e86\u90a3\u4e48\u591aDenoise\uff0c\u662f\u65f6\u5019\u5bf9Denoise\u505a\u4e00\u4e2a\u8bf4\u660e\u4e86\u3002<\/p>\n\n\n\n

Denoise\u5185\u90e8\u5728\u505a\u7684\u4e8b\u60c5\u662f\uff1a\u7528Noise Predicter\u4ea7\u751f\u4e00\u4e2a\u8f93\u5165\u56fe\u7247\u7684\u6742\u8baf\uff0c\u518d\u628a\u6263\u6389\u8f93\u5165\u7684\u56fe\u7247\u6765\u8fbe\u5230\u53bb\u566a\u7684\u6548\u679c\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u4f60\u53ef\u80fd\u4f1a\u60f3\u95ee\uff1a\u4e3a\u4ec0\u4e48\u8981\u5148\u4ea7\u751f\u56fe\u50cf\u7684\u6742\u8baf\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u4ea7\u751f\u53bb\u566a\u4e4b\u540e\u7684\u56fe\u50cf\u5462\uff1f<\/p>\n\n\n\n

\u56e0\u4e3a\u8ba9\u673a\u5668\u5b66\u4e60\u83b7\u53d6\u6742\u8baf\u662f\u76f8\u5bf9\u5bb9\u6613\u7684\uff0c\u540e\u9762\u4f1a\u8bf4\u660e\u5982\u4f55\u8ba9\u673a\u5668\u5b66\u4e60\u83b7\u53d6\u56fe\u50cf\u7684\u6742\u8baf\u3002\u800c\u4e14\u4f60\u53ef\u4ee5\u60f3\u60f3\uff0c\u5982\u679c\u673a\u5668\u5df2\u7ecf\u76f4\u5230\u4e86\u5982\u4f55\u76f4\u63a5\u4ea7\u751f\u53bb\u566a\u4e4b\u540e\u7684\u56fe\u50cf\uff0c\u90a3\u5176\u5b9e\u5b83\u4e5f\u5b8c\u5168\u77e5\u9053\u8fd9\u4e2a\u56fe\u50cf\u957f\u4ec0\u4e48\u6837\u5b50\u4e86\uff0c\u4e5f\u5c31\u662f\u5b83\u4e5f\u53ef\u4ee5\u76f4\u63a5\u751f\u6210\u51fa\u6765\u63a8\u56fe\u50cf\u4e86\u3002\u4f46\u662f\u8fd9\u6837\u5b50\u7684\u65b9\u6cd5\u5c31\u4e0d\u5982\u8ba9\u673a\u5668\u5b66\u4e60\u5982\u4f55\u83b7\u53d6\u6742\u8baf\u8fd9\u4ef6\u4e8b\u5bb9\u6613\u3002<\/p>\n\n\n\n

\u7136\u540e\u6211\u4eec\u5c31\u6765\u8bf4\u8bf4\u5982\u4f55\u8bad\u7ec3\u8fd9\u91cc\u7684Noise Predicter\u3002<\/p>\n\n\n\n

\u8bad\u7ec3Noise Predicter\u7684\u95ee\u9898\u4e5f\u5c31\u662f\u5982\u4f55\u8ba9noise predicter\u77e5\u9053\u4e00\u5f20\u56fe\u7247\u7684\u6742\u8baf\u957f\u4ec0\u4e48\u6837\u5b50\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u8fd9\u91cc\u6211\u4eec\u7684\u505a\u6cd5\u5c31\u662f\u81ea\u5df1\u7ed9distribution\u4e2dsimple\u51fa\u6765\u7684\u56fe\u7247\u52a0\u6742\u8baf\uff0c\u5236\u9020\u51fanoise predicter\u7684\u6742\u8baf\u7684\u6570\u636e\u96c6\u3002\u8fd9\u6837\u5b50\u7684\u4e00\u4e2a\u8fc7\u7a0b\u5c31\u79f0\u4e4b\u4e3aForward Process\uff08Diffusion Process\uff09\u3002\u7136\u540e\u6211\u4eec\u5c31\u53ef\u4ee5\u548c\u8bad\u7ec3\u666e\u901a\u7684\u795e\u7ecf\u7f51\u7edc\u4e00\u6837\u8bad\u7ec3noise predicter\uff0c\u8ba9\u5b83\u8f93\u51fa\u56fe\u7247\u7684\u6742\u8baf\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

\u6700\u540e\u6211\u4eec\u6765\u8003\u8651\u4e00\u4e0b\u6587\u5b57\u6761\u4ef6\u8f93\u5165\u7684\u60c5\u51b5\u3002<\/p>\n\n\n\n

\u8fd9\u91cc\u6587\u5b57\u5230\u5f71\u50cf\u4e3apair\u6210\u5bf9\u7684\u8d44\u6599\u9700\u8981\u7684\u8d44\u6599\u96c6\u662f\u975e\u5e38\u5927\u7684\u3002LAION\u7528\u4e865.85Billion\u7684\u6570\u636e\u624d\u5f97\u5230\u8fd9\u6837\u5b50\u4e00\u4e2a\u6bd4\u8f83\u597d\u7684\u6548\u679c\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u628a\u6587\u5b57\u52a0\u5230model\u91cc\u9762\u7684\u505a\u6cd5\u5c31\u662f\u7ed9\u6bcf\u4e00\u4e2astep\u7684denoise\u6a21\u7ec4\u90fd\u52a0\u4e0a\u4e00\u4e2a\u989d\u5916\u7684\u6587\u5b57\u8f93\u5165\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u6240\u4ee5\u8fd9\u91ccNoise Predicter\u5c31\u6709\u5e26\u6709\u6742\u8baf\u7684\u56fe\u50cf\u3001\u5f53\u524d\u7684step\u6570\u548c\u9650\u5b9a\u7684\u6587\u5b57\u6761\u4ef6\u7684\u4e09\u4e2a\u8f93\u5165\u53c2\u6570\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u8bad\u7ec3\u7684\u65f6\u5019\u4e5f\u662f\u4e00\u6837\uff0c\u591a\u7ed9\u4e00\u4e2a\u6587\u5b57\u7684\u8f93\u5165\u5373\u53ef\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u6700\u540e\u5728\u8fd9\u91cc\u8d34\u4e00\u4e2aDDPM\u539f\u6587\u91cc\u9762\u5b8c\u6574\u7684\u6f14\u7b97\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
\n\n\n\n

\u4ee5\u4e0a\u5c31\u6d45\u8c08\u4e86\u56fe\u50cf\u751f\u6210\u6a21\u578bDiffusion Model\u539f\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u3010\u6d45\u8c08\u56fe\u50cf\u751f\u6210\u6a21\u578bDiffusion Model\u539f\u7406\u3011\u674e\u5b8f\u6bc52023\u6625\u673a\u5668\u5b66\u4e60\u8bfe\u7a0b\u7b14\u8bb0 \u8003\u8651\u5230\u4e2a\u4eba\u5728\u4e00\u4e9b\u95ee\u9898\u4e0a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[3,7,9,8],"class_list":["post-648","post","type-post","status-publish","format-standard","hentry","category-lhyjqxxbj","tag-xxbj","tag-jjxx","tag-lhy","tag-deeplearning"],"_links":{"self":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/648","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/comments?post=648"}],"version-history":[{"count":2,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/648\/revisions"}],"predecessor-version":[{"id":1874,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/648\/revisions\/1874"}],"wp:attachment":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/media?parent=648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/categories?post=648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/tags?post=648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}