{"id":411,"date":"2024-08-29T14:25:34","date_gmt":"2024-08-29T06:25:34","guid":{"rendered":"https:\/\/blog.ppdd.vip\/?p=411"},"modified":"2024-08-29T14:26:30","modified_gmt":"2024-08-29T06:26:30","slug":"%e5%85%a8%e9%9d%a2%e7%90%86%e8%a7%a3stable-diffusion%e9%87%87%e6%a0%b7%e5%99%a8","status":"publish","type":"post","link":"https:\/\/blog.ppdd.vip\/index.php\/2024\/08\/29\/%e5%85%a8%e9%9d%a2%e7%90%86%e8%a7%a3stable-diffusion%e9%87%87%e6%a0%b7%e5%99%a8\/","title":{"rendered":"\u5168\u9762\u7406\u89e3Stable Diffusion\u91c7\u6837\u5668"},"content":{"rendered":"\n<p><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/673899723\">https:\/\/zhuanlan.zhihu.com\/p\/673899723<\/a><\/p>\n\n\n\n<p>\u5728 AUTOMATIC1111 \u7684\u00a0<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/github.com\/AUTOMATIC1111\/stable-diffusion-webui\" target=\"_blank\" rel=\"noreferrer noopener\">SD webui<\/a>\u00a0\u4e2d\uff0c\u6709\u8bb8\u591a<a href=\"https:\/\/zhida.zhihu.com\/search?q=%E9%87%87%E6%A0%B7%E5%99%A8&amp;zhida_source=entity&amp;is_preview=1\" target=\"_blank\" rel=\"noreferrer noopener\">\u91c7\u6837\u5668<\/a>\uff08sampler\uff09\uff0c\u5982 Euler a\uff0cHeun\uff0cDDIM\uff0c&#8230; \u4ec0\u4e48\u662f\u91c7\u6837\u5668\uff1f\u4ed6\u4eec\u5982\u4f55\u5de5\u4f5c\uff1f\u4ed6\u4eec\u4e4b\u95f4\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f\u6211\u4eec\u5e94\u8be5\u7528\u54ea\u79cd\u91c7\u6837\u5668\uff1f\u672c\u6587\u5c06\u5e26\u7ed9\u4f60\u7b54\u6848\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ec0\u4e48\u662f\u91c7\u6837\uff1f<\/h3>\n\n\n\n<p>\u5728\u751f\u6210\u56fe\u7247\u65f6\uff0cStable Diffusion \u4f1a\u5148\u5728\u9690\u5c42\u7a7a\u95f4\uff08latent space\uff09\u4e2d\u751f\u6210\u4e00\u5f20\u5b8c\u5168\u7684\u566a\u58f0\u56fe\u3002\u566a\u58f0\u9884\u6d4b\u5668\u4f1a\u9884\u6d4b\u56fe\u7247\u7684\u566a\u58f0\uff0c\u5c06\u9884\u6d4b\u51fa\u7684\u566a\u58f0\u4ece\u56fe\u7247\u4e2d\u51cf\u53bb\uff0c\u5c31\u5b8c\u6210\u4e86\u4e00\u6b65\u3002\u91cd\u590d\u8be5\u8fc7\u7a0b\uff0c\u6700\u7ec8\u5c06\u4f1a\u5f97\u5230\u6e05\u6670\u7684\u56fe\u7247\u3002<\/p>\n\n\n\n<p>\u7531\u4e8e Stable Diffusion \u5728\u6bcf\u4e00\u6b65\u90fd\u4f1a\u4ea7\u751f\u4e00\u4e2a\u65b0\u7684\u56fe\u50cf\u6837\u672c\uff0c\u56e0\u6b64\u53bb\u566a\u7684\u8fc7\u7a0b\u88ab\u4e5f\u88ab\u79f0\u4e3a\u91c7\u6837\u3002\u91c7\u6837\u8fc7\u7a0b\u6240\u4f7f\u7528\u7684\u65b9\u6cd5\u88ab\u79f0\u4e3a\u91c7\u6837\u65b9\u6cd5\u6216\u91c7\u6837\u5668\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"268\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-8.webp\" alt=\"\" class=\"wp-image-447\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-8.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-8-300x112.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>\u91c7\u6837\u5668\u8d1f\u8d23\u6267\u884c\u53bb\u566a\u6b65<\/p>\n\n\n\n<p>\u91c7\u6837\u53ea\u662f Stable Diffusion \u6a21\u578b\u4e2d\u7684\u4e00\u90e8\u5206\u3002\u5982\u679c\u60f3\u7406\u89e3\u5b8c\u6574\u7684 Stable DIffusion\uff0c\u63a8\u8350\u9605\u8bfb&nbsp;<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/stable-diffusion-art.com\/how-stable-diffusion-work\/\" target=\"_blank\" rel=\"noreferrer noopener\">How does Stable Diffusion work?<\/a>&nbsp;\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u91c7\u6837\u8fc7\u7a0b\u7684\u52a8\u6001\u5c55\u793a\uff0c\u91c7\u6837\u5668\u9010\u6e10\u5730\u4ea7\u751f\u8d8a\u6765\u8d8a\u5e72\u51c0\u3001\u6e05\u6670\u7684\u56fe\u50cf\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"512\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-2.jpeg\" alt=\"\u52a8\u56fe\u5c01\u9762\" class=\"wp-image-458\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-2.jpeg 512w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-2-300x300.jpeg 300w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-2-150x150.jpeg 150w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/figure>\n\n\n\n<p>\u6bcf\u4e00\u6b65\u53bb\u566a\u4e4b\u540e\u7684\u56fe\u50cf\u52a8\u6001\u5c55\u793a<\/p>\n\n\n\n<p>\u867d\u7136\u6574\u4f53\u6846\u67b6\u662f\u76f8\u540c\u7684\uff0c\u4f46\u662f\u6709\u8bb8\u591a\u4e0d\u540c\u7684\u65b9\u6cd5\u6765\u6267\u884c\u5177\u4f53\u7684\u53bb\u566a\u8fc7\u7a0b\u3002\u8fd9\u901a\u5e38\u9700\u8981\u901f\u5ea6\u548c\u51c6\u786e\u5ea6\u4e4b\u95f4\u4e24\u76f8\u6743\u8861\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Noise Schedule<\/h3>\n\n\n\n<p>\u6211\u4eec\u5df2\u7ecf\u4ecb\u7ecd\u8fc7\uff0c\u5728 Stable Diffusion \u4e2d\uff0c\u566a\u58f0\u56fe\u50cf\u662f\u6bcf\u6b65\u51cf\u53bb\u6a21\u578b\u9884\u6d4b\u51fa\u7684\u566a\u58f0\uff0c\u4e00\u70b9\u4e00\u70b9\u53d8\u6210\u5e72\u51c0\u56fe\u50cf\u7684\u3002noise schedule \u5c31\u662f\u7528\u6765\u63a7\u5236\u5728\u6bcf\u4e2a\u91c7\u6837\u6b65\u4e2d\u566a\u58f0\u7684\u5f3a\u5ea6\u7684\u3002\u566a\u58f0\u5728\u7b2c\u4e00\u6b65\u6700\u5927\uff0c\u6162\u6162\u964d\u4f4e\uff0c\u76f4\u5230\u6700\u540e\u4e00\u6b65\u964d\u4e3a0\u3002<\/p>\n\n\n\n<p>\u5728\u6bcf\u4e00\u6b65\u4e2d\uff0c\u91c7\u6837\u5668\u7684\u5de5\u4f5c\u5c31\u662f\u6839\u636e noise schedule \u4e2d\u5bf9\u5e94\u7684\u8be5\u6b65\u7684\u566a\u58f0\u5f3a\u5ea6\uff0c\u51cf\u53bb\u5bf9\u5e94\u7684\u566a\u58f0\uff0c\u6765\u4ea7\u751f\u8be5\u6b65\u7684\u53bb\u566a\u56fe\u50cf\u3002\u5982\u679c\u6211\u4eec\u589e\u5927\u91c7\u6837\u6b65\u6570\u4f1a\u6709\u4ec0\u4e48\u5f71\u54cd\u5462\uff1f\u6bcf\u4e00\u6b65\u566a\u58f0\u4e0b\u964d\u7684\u4f1a\u66f4\u5c11\uff0c\u8fd9\u6709\u52a9\u4e8e\u51cf\u5c11\u91c7\u6837\u8fc7\u7a0b\u4e2d\u7684\u622a\u65ad\u8bef\u5dee\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f 15 \u6b65\u548c 30 \u6b65\u7684 noise schedule \u7684\u5bf9\u6bd4\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"495\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image.webp\" alt=\"\" class=\"wp-image-437\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-300x206.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"397\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-15.webp\" alt=\"\" class=\"wp-image-456\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-15.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-15-300x165.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u91c7\u6837\u5668\u603b\u89c8<\/h3>\n\n\n\n<p>\u5230\u672c\u6587\u5199\u4f5c\u65f6\uff0cSD webui \u5171\u652f\u6301 19 \u4e2d\u91c7\u6837\u5668\uff0c\u800c\u4e14\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u8d8a\u6765\u8d8a\u591a\u3002\u90a3\u4e48\uff0c\u4e0d\u540c\u7684\u91c7\u6837\u5668\u4e4b\u95f4\u6709\u4f55\u533a\u522b\u5462\uff1f<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u76ee\u524d\u4e3a\u6b62\uff0cSD webui \u652f\u6301\u7684\u91c7\u6837\u5668\uff1a<br>Euler a\u3001Euler\u3001LMS\u3001Heun\u3001DPM2\u3001DPM2 a\u3001DPM++ 2S a\u3001DPM++2M\u3001DPM++ SDE\u3001DPM fast\u3001DPM adaptive\u3001LMS Karras\u3001DPM2 Karras\u3001DPM2 a\u3001Karras\u3001DPM++2S a Karras\u3001DPM++ 2M Karras\u3001DPM++ SDE Karras\u3001DDIM\u3001PLMS\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u672c\u6587\u540e\u534a\u90e8\u5206\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u6280\u672f\u4e0a\u7ec6\u8282\u5f88\u591a\u3002\u6240\u4ee5\u8fd9\u91cc\u5148\u63d0\u4f9b\u4e00\u4e2a\u603b\u89c8\u7684\u89c6\u89d2\uff0c\u5e2e\u52a9\u5927\u5bb6\u5bf9\u5404\u79cd\u91c7\u6837\u5668\u6709\u4e00\u4e2a\u5927\u81f4\u7684\u4e86\u89e3\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Old-School ODE Solvers<\/h3>\n\n\n\n<p>\u6211\u4eec\u5148\u6765\u770b\u6700\u7b80\u5355\u7684\u4e00\u7c7b\uff0c\u8fd9\u4e9b\u91c7\u6837\u5668\u4e2d\u7684\u53d1\u660e\u65f6\u95f4\u90fd\u5df2\u7ecf\u8d85\u8fc7\u4e00\u767e\u5e74\u4e86\uff0c\u5b83\u4eec\u662f\u5c31\u8001\u5f0f\u7684<a href=\"https:\/\/zhida.zhihu.com\/search?q=%E5%B8%B8%E5%BE%AE%E5%88%86%E6%96%B9%E7%A8%8B&amp;zhida_source=entity&amp;is_preview=1\" target=\"_blank\" rel=\"noreferrer noopener\">\u5e38\u5fae\u5206\u65b9\u7a0b<\/a>\uff08ODE\uff09\u6c42\u89e3\u5668\uff08solver\uff09\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Euler\uff1a\u6700\u7b80\u5355\u7684\u6c42\u89e3\u5668\uff1b<\/li>\n\n\n\n<li>Heun\uff1a\u6bd4 Euler \u66f4\u51c6\u786e\uff0c\u4f46\u4e5f\u66f4\u6162<\/li>\n\n\n\n<li>LMS\uff08Linear Multi-Step method\uff09\uff1a\u548c Euler \u4e00\u6837\u5feb\uff0c\u4f46\uff08\u5e94\u8be5\u4f1a\uff09\u66f4\u51c6\u786e<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Ancestor Samplers<\/h3>\n\n\n\n<p>\u4f60\u662f\u5426\u6ce8\u610f\u5230\u67d0\u4e9b\u91c7\u6837\u5668\u540d\u5b57\u91cc\u5e26\u4e86\u4e00\u4e2a\u5b57\u6bcd&nbsp;<code>a<\/code>\uff1f<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Euler a<\/li>\n\n\n\n<li>DPM2 a<\/li>\n\n\n\n<li>DPM++ 2S a<\/li>\n\n\n\n<li>DPM++ 2S a Karras<\/li>\n<\/ul>\n\n\n\n<p>\u4ed6\u4eec\u5c31\u662f\u7956\u5148\u91c7\u6837\u5668\u3002\u7956\u5148\u91c7\u6837\u5668\u4f1a\u5728\u6bcf\u4e2a\u91c7\u6837\u6b65\u5bf9\u56fe\u50cf\u6dfb\u52a0\u566a\u58f0\u3002\u7956\u5148\u91c7\u6837\u5668\u90fd\u662f\u968f\u673a\uff08stochastic\uff09\u91c7\u6837\u5668\uff0c\u56e0\u4e3a\u4ed6\u4eec\u7684\u91c7\u6837\u7ed3\u679c\u5177\u6709\u968f\u673a\u6027\u3002\u4f46\u662f\uff0c\u6ce8\u610f\u4e5f\u6709\u5176\u4ed6\u7684\u540d\u5b57\u4e2d\u4e0d\u5e26&nbsp;<code>a<\/code>&nbsp;<a href=\"https:\/\/zhida.zhihu.com\/search?q=%E9%9A%8F%E6%9C%BA%E9%87%87%E6%A0%B7&amp;zhida_source=entity&amp;is_preview=1\" target=\"_blank\" rel=\"noreferrer noopener\">\u968f\u673a\u91c7\u6837<\/a>\u5668\u3002<\/p>\n\n\n\n<p>\u7956\u5148\u91c7\u6837\u5668\u6709\u4e00\u4e2a\u7f3a\u70b9\uff0c\u5c31\u662f\u5176\u91c7\u6837\u7ed3\u679c\u56fe\u7247\u4e0d\u4f1a\u6536\u655b\u3002\u4ee5\u4e0b\u662f Euler \u548c Euler a \u7684\u91c7\u6837\u8fc7\u7a0b\u5bf9\u6bd4\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"512\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image.jpeg\" alt=\"\u52a8\u56fe\u5c01\u9762\" class=\"wp-image-440\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image.jpeg 512w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-300x300.jpeg 300w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-150x150.jpeg 150w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">euler\u53ef\u4ee5\u6536\u655b<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"512\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-1.jpeg\" alt=\"\u52a8\u56fe\u5c01\u9762\" class=\"wp-image-455\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-1.jpeg 512w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-1-300x300.jpeg 300w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-1-150x150.jpeg 150w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">euler-a\u65e0\u6cd5\u6536\u655b<\/figcaption><\/figure>\n\n\n\n<p>\u53ef\u4ee5\u770b\u5230\uff0cEuler a \u7684\u91c7\u6837\u7ed3\u679c\u4e0d\u6536\u655b\uff0c\u800c Euler \u7684\u91c7\u6837\u7ed3\u679c\u6536\u655b\u5f97\u5f88\u597d\u3002\u8003\u8651\u5230\u53ef\u590d\u73b0\u6027\uff0c\u6211\u4eec\u901a\u5e38\u66f4\u559c\u6b22\u53ef\u4ee5\u6536\u655b\u7684\u7ed3\u679c\u3002\u5f53\u7136\uff0c\u5982\u679c\u60f3\u8981\u7a0d\u5fae\u6709\u4e9b\u53d8\u5316\uff0c\u53ef\u4ee5\u4f7f\u7528&nbsp;<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/stable-diffusion-art.com\/automatic1111\/%23Extra_seed_options\" target=\"_blank\" rel=\"noreferrer noopener\">variational seed<\/a>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Karras noise schedule<\/h3>\n\n\n\n<p>\u540d\u5b57\u4e2d\u5e26\u6709&nbsp;<code>Karras<\/code>&nbsp;\u7684\u91c7\u6837\u5668\uff0c\u662f\u4f7f\u7528\u4e86 Karras \u7684<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/arxiv.org\/abs\/2206.00364\" target=\"_blank\" rel=\"noreferrer noopener\">\u8bba\u6587<\/a>\u4e2d\u63a8\u8350\u7684 noise schedule\u3002\u5982\u679c\u4ed4\u7ec6\u89c2\u5bdf\u53ef\u4ee5\u53d1\u73b0\uff0cKarras \u63a8\u8350\u7684 noise schedule \u4e2d\uff0c\u63a5\u8fd1\u7ec8\u70b9\u9644\u8fd1\u7684\u7684\u51e0\u6b65\u503c\u4f1a\u66f4\u5c0f\uff0c\u4ed6\u4eec\u53d1\u73b0\u8fd9\u79cd\u7b56\u7565\u4f1a\u6709\u66f4\u597d\u7684\u751f\u56fe\u8d28\u91cf\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"397\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-20.webp\" alt=\"\" class=\"wp-image-462\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-20.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-20-300x165.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>\u9ed8\u8ba4noise schedule\u4e0eKarras noise schedule\u7684\u5bf9\u6bd4<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DDIM\u548cPLMS<\/h3>\n\n\n\n<p>DDIM (Denoising Diffusion Implicit Model) \u548c PLMS (Pseudo Linear Multi-Step method) \u662f&nbsp;<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/github.com\/CompVis\/stable-diffusion\" target=\"_blank\" rel=\"noreferrer noopener\">SDv1<\/a>&nbsp;\u5e26\u7684\u4e24\u79cd\u91c7\u6837\u5668\u3002DDIM \u662f\u7b2c\u4e00\u6279\u8f6c\u4e3a<a href=\"https:\/\/zhida.zhihu.com\/search?q=%E6%89%A9%E6%95%A3%E6%A8%A1%E5%9E%8B&amp;zhida_source=entity&amp;is_preview=1\" target=\"_blank\" rel=\"noreferrer noopener\">\u6269\u6563\u6a21\u578b<\/a>\u8bbe\u8ba1\u7684\u91c7\u6837\u5668\u4e4b\u4e00\uff0c\u800c PLMS \u662f DDIM \u66f4\u65b0\u3001\u66f4\u5feb\u7684\u7248\u672c\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e24\u79cd\u91c7\u6837\u5668\u73b0\u5728\u770b\u6765\u5df2\u7ecf\u6709\u4e9b\u8fc7\u65f6\u4e86\uff0c\u4e00\u822c\u4e0d\u518d\u5e7f\u6cdb\u4f7f\u7528\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DPM\u548cDPM++<\/h3>\n\n\n\n<p>DPM (Diffusion probabilistic model solver) and DPM++ \u662f\u4e00\u7cfb\u5217\u53d1\u5e03\u4e8e 2022 \u5e74\u7684\u65b0\u578b\u6269\u6563\u6a21\u578b\u91c7\u6837\u5668\u3002\u4ed6\u4eec\u4ee3\u8868\u4e86\u4e00\u4e9b\u5177\u6709\u7c7b\u4f3c\u7ed3\u6784\u7684\u6c42\u89e3\u5668\u3002<\/p>\n\n\n\n<p>DPM \u548c DPM2 \u5f88\u7c7b\u4f3c\uff0c\u4f46\u662f DPM2 \u662f\u4e8c\u9636\u7684\uff0c\u66f4\u51c6\u786e\u4f46\u662f\u66f4\u6162\u3002<\/p>\n\n\n\n<p>DPM++ \u662f DPM \u7684\u4f18\u5316\u7248\u672c\u3002<\/p>\n\n\n\n<p>DPM adaptive \u53ef\u4ee5\u81ea\u9002\u5e94\u5730\u8c03\u6574\u6bcf\u4e00\u6b65\u7684\u503c\u3002\u5b83\u53ef\u80fd\u4f1a\u975e\u5e38\u6162\uff0c\u56e0\u4e3a\u4ed6\u5e76\u4e0d\u786e\u4fdd<a href=\"https:\/\/zhida.zhihu.com\/search?q=%E6%89%A9%E6%95%A3%E8%BF%87%E7%A8%8B&amp;zhida_source=entity&amp;is_preview=1\" target=\"_blank\" rel=\"noreferrer noopener\">\u6269\u6563\u8fc7\u7a0b<\/a>\u5728\u67d0\u4e2a\u786e\u5b9a\u7684\u91c7\u6837\u6b65\u6570\u5185\u80fd\u5b8c\u6210\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">UniPC<\/h3>\n\n\n\n<p><a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/unipc.ivg-research.xyz\/\" target=\"_blank\" rel=\"noreferrer noopener\">UniPC<\/a>&nbsp;(Unified Predictor-Corrector) \u662f\u4e00\u79cd\u53d1\u5e03\u4e8e 2023 \u5e74\u7684\u65b0\u578b\u91c7\u6837\u5668\u3002\u7075\u611f\u6765\u81ea\u4e8e ODE \u6c42\u89e3\u5668\u4e2d\u7684 predictor-corrector \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5728 5-10 \u6b65\u91c7\u6837\u51fa\u9ad8\u8d28\u91cf\u7684\u56fe\u7247\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">k-diffusion<\/h3>\n\n\n\n<p>\u6700\u540e\uff0c\u4f60\u53ef\u80fd\u542c\u8bf4\u8fc7 k-diffusion \u5e76\u597d\u5947\u8fd9\u662f\u4ec0\u4e48\u4e1c\u897f\u3002\u5b83\u5176\u5b9e\u5c31\u662f\u6307 Katherine Crowson \u7684 GitHub \u4ed3\u5e93\uff1a&nbsp;<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/github.com\/crowsonkb\/k-diffusion\" target=\"_blank\" rel=\"noreferrer noopener\">k-diffusion<\/a>\uff0c\u8be5\u4ed3\u5e93\u5b9e\u73b0\u4e86 Karras \u8bba\u6587\u4e2d\u63d0\u5230\u7684\u8bf8\u591a\u91c7\u6837\u5668\u3002<\/p>\n\n\n\n<p>\u5b9e\u9645\u4e0a\uff0cSD webui \u4e2d\u9664\u4e86 DDIM\u3001PLMS \u548c UniPC \u5916\u7684\u5176\u4ed6\u6240\u6709\u91c7\u6837\u5668\u90fd\u662f\u4f7f\u7528\u7684 k-diffusion \u4ed3\u5e93\u7684\u5b9e\u73b0\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8bc4\u4f30\u91c7\u6837\u5668<\/h3>\n\n\n\n<p>\u5982\u4f55\u9009\u62e9\u91c7\u6837\u5668\uff1f\u672c\u8282\u5c06\u4f1a\u8fdb\u884c\u4e00\u4e9b\u5ba2\u89c2\u7684\u5bf9\u6bd4\uff0c\u6765\u5e2e\u52a9\u4f60\u9009\u62e9\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Image Convergence<\/h3>\n\n\n\n<p>\u672c\u5c0f\u8282\u5c06\u4f1a\u4f7f\u7528\u4e0d\u540c\u7684\u91c7\u6837\u5668\u751f\u6210\u76f8\u540c\u7684\u56fe\u7247\uff0c\u6700\u5927\u91c7\u6837\u6b65\u6570\u4e3a 40\u3002\u5728\u7b2c 40 \u6b65\u7684\u6700\u540e\u4e00\u5f20\u56fe\u7247\u5c06\u4f5c\u4e3a\u53c2\u8003\uff0c\u6765\u8bc4\u4f30\u91c7\u6837\u5668\u6536\u655b\u7684\u901f\u5ea6\u3002Euler \u5c06\u4f5c\u4e3a\u53c2\u7167\u3002<\/p>\n\n\n\n<p><strong>Euler, DDIM, PLMS, LMS Karras and Heun<\/strong><\/p>\n\n\n\n<p>\u9996\u5148\u6211\u4eec\u770b\u4e00\u4e0b Euler, DDIM, PLMS, LMS Karras and Heun \u8fd9\u51e0\u4e2a\u91c7\u6837\u5668\uff0c\u4ed6\u4eec\u662f\u8001\u5f0f\u7684 ODE \u6c42\u89e3\u5668\u6216\u8005\u662f\u6269\u6563\u6a21\u578b\u539f\u59cb\u7684\u6c42\u89e3\u5668\u3002<\/p>\n\n\n\n<p>\u53ef\u4ee5\u770b\u5230\uff0cDDIM \u4e0e Euler \u7684\u6536\u655b\u6b65\u6570\u5dee\u4e0d\u591a\uff0c\u4f46\u662f\u53d8\u52a8\u66f4\u5927\uff0c\u8fd9\u662f\u56e0\u4e3a DDIM \u4f1a\u5728\u91c7\u6837\u6b65\u4e2d\u6ce8\u5165<a href=\"https:\/\/zhida.zhihu.com\/search?q=%E9%9A%8F%E6%9C%BA%E5%99%AA%E5%A3%B0&amp;zhida_source=entity&amp;is_preview=1\" target=\"_blank\" rel=\"noreferrer noopener\">\u968f\u673a\u566a\u58f0<\/a>\u3002<\/p>\n\n\n\n<p>PLMS \u5728\u672c\u6b21\u6d4b\u8bd5\u4e2d\u8868\u73b0\u4e0d\u4f73\uff0c\u6536\u655b\u6027\u6700\u5dee\u3002<\/p>\n\n\n\n<p>Heun \u6536\u655b\u5f97\u5f88\u5feb\uff0c\u4f46\u91c7\u6837\u901f\u5ea6\u5b9e\u9645\u8981\u6162\u4e24\u500d\uff0c\u56e0\u4e3a\u5b83\u662f\u4e00\u79cd\u4e8c\u9636\u7684\u65b9\u6cd5\u3002\u6240\u4ee5\u6211\u4eec\u5e94\u8be5\u5bf9\u6bd4 Heun \u7b2c 30 \u6b65\u7684\u7ed3\u679c\u4e0e Euler \u7b2c 15 \u6b65\u7684\u57fa\u51c6\u7ed3\u679c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"470\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-10.webp\" alt=\"\" class=\"wp-image-449\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-10.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-10-300x196.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>Euler, DDIM, PLMS, LMS Karras and Heun \u91c7\u6837\u7ed3\u679c\u6536\u655b\u6027\u5bf9\u6bd4 (\u8d8a\u4f4e\u8d8a\u597d)<\/p>\n\n\n\n<p><strong>Ancestral Samplers<\/strong><\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u7684\u76ee\u6807\u662f\u4ea7\u751f\u7a33\u5b9a\u3001\u53ef\u590d\u73b0\u7684\u91c7\u6837\u7ed3\u679c\uff0c\u90a3\u4e48\u4f60\u4e0d\u5e94\u8be5\u4f7f\u7528\u7956\u5148\u91c7\u6837\u5668\u3002\u56e0\u4e3a\u4ed6\u4eec\u90fd\u5e26\u6709\u968f\u673a\u6027\uff0c\u4e14\u4e0d\u4f1a\u6536\u655b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"466\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-11.webp\" alt=\"\" class=\"wp-image-450\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-11.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-11-300x194.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>\u7956\u5148\u91c7\u6837\u5668\u5747\u65e0\u6cd5\u6536\u655b<\/p>\n\n\n\n<p><strong>DPM and DPM2<\/strong><\/p>\n\n\n\n<p>\u5728 DPM \u7cfb\u5217\u91c7\u6837\u5668\u4e2d\uff0cDPM fast \u65e0\u6cd5\u5f88\u597d\u5730\u6536\u655b\uff0cDPM2 \u548c DPM2 Karras \u7684\u6536\u655b\u6027\u770b\u8d77\u6765\u6bd4 Euler \u8981\u597d\uff0c\u4f46\u522b\u5fd8\u4e86\uff0c\u5b83\u4eec\u4e5f\u662f\u4e8c\u9636\u7684\u65b9\u6cd5\uff0c\u901f\u5ea6\u8981\u6162\u4e24\u500d\u3002<\/p>\n\n\n\n<p>DPM adaptive \u770b\u8d77\u6765\u5f88\u597d\uff0c\u4f46\u4ed6\u662f\u7528\u7684\u81ea\u5df1\u7684\u81ea\u9002\u5e94\u6b65\u6570\uff0c\u5b9e\u9645\u53ef\u80fd\u975e\u5e38\u6162\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"494\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-14.webp\" alt=\"\" class=\"wp-image-454\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-14.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-14-300x206.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p><strong>DPM++ Solvers<\/strong><\/p>\n\n\n\n<p>DPM++ SDE \u548c DPM++ SDE Karras \u4e0e\u7956\u5148\u91c7\u6837\u5668\u6709\u76f8\u540c\u7684\u95ee\u9898\uff0c\u4ed6\u4eec\u4e0d\u4ec5\u4e0d\u6536\u655b\uff0c\u800c\u4e14\u968f\u7740\u6b65\u6570\u7684\u53d8\u5316\uff0c\u56fe\u7247\u8d28\u91cf\u4e5f\u4f1a\u6ce2\u52a8\u3002<\/p>\n\n\n\n<p>DPM++ 2M and DPM++ 2M Karras \u6536\u655b\u6027\u4e0d\u9519\u3002 \u5728\u6b65\u6570\u8db3\u591f\u5927\u65f6\uff0cKarras \u7684\u7b56\u7565\u4f1a\u6536\u655b\u5f97\u5f88\u5feb\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"451\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-9.webp\" alt=\"\" class=\"wp-image-448\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-9.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-9-300x188.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p><strong>UniPC<\/strong><\/p>\n\n\n\n<p>UniPC \u6536\u655b\u5f97\u6bd4 Euler \u7a0d\u6162\uff0c\u4f46\u4e5f\u8fd8\u4e0d\u9519\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"691\" height=\"473\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-13.webp\" alt=\"\" class=\"wp-image-452\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-13.webp 691w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-13-300x205.webp 300w\" sizes=\"auto, (max-width: 691px) 100vw, 691px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Speed<\/h3>\n\n\n\n<p>\u867d\u7136\u524d\u9762\u770b\u5230\uff0cDPM adaptive \u6536\u655b\u6027\u5f88\u4e0d\u9519\uff0c\u4f46\u901f\u5ea6\u8fd9\u91cc\u53ef\u4ee5\u660e\u663e\u770b\u5230\u4ed6\u662f\u6700\u6162\u7684\u3002<\/p>\n\n\n\n<p>\u9664\u4e86 DPM adaptive \u5916\uff0c\u53ef\u4ee5\u770b\u5230\u5269\u4e0b\u7684\u91c7\u6837\u5668\u5206\u4e3a\u4e86\u4e24\u7ec4\u3002\u5206\u522b\u5dee\u4e0d\u591a\u662f\u4e00\u500d\u65f6\u95f4\u548c\u4e24\u500d\u65f6\u95f4\u3002\u8fd9\u53cd\u6620\u51fa\u7684\u662f\u6c42\u89e3\u5668\u7684\u9636\u6b21\uff0c\u4e00\u9636\u6c42\u89e3\u5668\u66f4\u5feb\uff0c\u4e8c\u9636\u6c42\u89e3\u5668\u66f4\u51c6\u786e\uff0c\u4f46\u662f\u901f\u5ea6\u8981\u6162\u4e24\u500d\uff0c\u56e0\u4e3a\u9700\u8981\u8fc7\u4e24\u904d\u53bb\u566a UNet \u6a21\u578b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"388\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-2.webp\" alt=\"\" class=\"wp-image-439\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-2.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-2-300x162.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Quality<\/h3>\n\n\n\n<p>\u5f53\u7136\uff0c\u5982\u679c\u751f\u6210\u56fe\u7247\u7684\u8d28\u91cf\u770b\u8d77\u6765\u5f88\u77ec\uff0c\u6536\u655b\u6027\u548c\u901f\u5ea6\u90fd\u6ca1\u6709\u610f\u4e49\u3002\u4ee5\u4e0b\u662f\u4e0d\u540c\u91c7\u6837\u5668\u7ed3\u679c\u7684\u5bf9\u6bd4\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"234\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-5.webp\" alt=\"\" class=\"wp-image-444\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-5.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-5-300x98.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"233\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-6.webp\" alt=\"\" class=\"wp-image-445\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-6.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-6-300x97.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"235\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-17.webp\" alt=\"\" class=\"wp-image-459\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-17.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-17-300x98.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"236\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-7.webp\" alt=\"\" class=\"wp-image-446\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-7.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-7-300x98.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"233\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-12.webp\" alt=\"\" class=\"wp-image-451\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-12.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-12-300x97.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"233\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-3.webp\" alt=\"\" class=\"wp-image-442\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-3.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-3-300x97.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>\u4ece\u7ed3\u679c\u6765\u770b\uff0cDPM++ fast \u662f\u660e\u663e\u8d28\u91cf\u7a0d\u5dee\u7684\u3002\u53e6\u5916\uff0c\u5404\u4e2a\u7956\u5148\u91c7\u6837\u5668\u6ca1\u6709\u6536\u655b\u5230\u5176\u4ed6\u91c7\u6837\u5668\u6536\u655b\u7684\u7ed3\u679c\u3002\u7956\u5148\u91c7\u6837\u5668\u6536\u5230\u4e00\u81f4 kitten\uff0c\u800c\u5176\u4ed6\u91c7\u6837\u5668\u6536\u655b\u5230\u4e00\u53ea cat\u3002<\/p>\n\n\n\n<p>\u751f\u6210\u7ed3\u679c\u7684\u4e3b\u89c2\u611f\u77e5\u8fd9\u91cc\u6ca1\u6709\u660e\u663e\u7684\u54ea\u4e2a\u6bd4\u54ea\u4e2a\u597d\uff0c\u81ea\u5df1\u770b\u7740\u597d\u5c31\u884c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Perceptual Quality<\/h3>\n\n\n\n<p>\u5373\u4f7f\u6ca1\u6709\u6536\u655b\uff0c\u751f\u6210\u56fe\u50cf\u7684\u8d28\u91cf\u4e5f\u53ef\u80fd\u5df2\u7ecf\u4e0d\u9519\u4e86\u3002\u8fd9\u8282\u6211\u4eec\u770b\u4e00\u4e0b\u5404\u4e2a\u91c7\u6837\u5668\u9700\u8981\u591a\u5c11\u6b65\u80fd\u591f\u5f97\u5230\u9ad8\u8d28\u91cf\u7684\u751f\u6210\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u8fd9\u91cc\u6211\u4eec\u91c7\u7528\u7684\u6307\u6807\u662f&nbsp;<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/learnopencv.com\/image-quality-assessment-brisque\/\" target=\"_blank\" rel=\"noreferrer noopener\">BRISQUE<\/a>&nbsp;(Blind\/Referenceless Image Spatial Quality Evaluator)\uff0c\u5b83\u53cd\u6620\u4e86\u81ea\u7136\u56fe\u50cf\u7684\u8d28\u91cf\uff0c\u6570\u503c\u8d8a\u4f4e\uff0c\u56fe\u50cf\u8d28\u91cf\u8d8a\u9ad8\u3002<\/p>\n\n\n\n<p>\u5728\u7b2c\u4e00\u7ec4\u4e2d\uff0cDDIM \u8fd9\u91cc\u8868\u73b0\u5f97\u51fa\u4e4e\u610f\u6599\u7684\u597d\uff0c\u53ea\u9700\u8981 8 \u6b65\uff0c\u5c31\u751f\u6210\u4e86\u8d28\u91cf\u6700\u9ad8\u7684\u56fe\u50cf\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"494\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-18.webp\" alt=\"\" class=\"wp-image-460\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-18.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-18-300x206.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>\u7b2c\u4e8c\u7ec4\u5bf9\u6bd4\u7684\u662f\u7956\u5148\u91c7\u6837\u5668\u7684\u7ed3\u679c\uff0c\u9664\u4e86\u4e00\u4e24\u4e2a\u4f8b\u5916\u4e4b\u5916\uff0c\u5927\u591a\u6570\u7956\u5148\u91c7\u6837\u5668\u7684\u8d28\u91cf\u4e0e Euler\u7c7b\u4f3c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"494\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-14.webp\" alt=\"\" class=\"wp-image-453\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-14.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-14-300x206.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>DPM2 \u91c7\u6837\u5668\u7cfb\u5217\u6bd4 Euler \u7a0d\u597d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"495\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image.webp\" alt=\"\" class=\"wp-image-438\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-300x206.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>\u5728\u672c\u8282\u7684\u751f\u6210\u8d28\u91cf\u5bf9\u6bd4\u4e2d\uff0cDPM++ SDE and DPM++ SDE Karras \u7684\u8868\u73b0\u6700\u597d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"494\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-16.webp\" alt=\"\" class=\"wp-image-457\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-16.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-16-300x206.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>UniPC \u5728\u5c0f\u6b65\u6570\u65f6\u6bd4 Euler \u7a0d\u5dee\uff0c\u5728\u5927\u6b65\u6570\u65f6\u5dee\u4e0d\u591a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"902\" height=\"620\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-1.webp\" alt=\"\" class=\"wp-image-441\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-1.webp 902w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-1-300x206.webp 300w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-1-768x528.webp 768w\" sizes=\"auto, (max-width: 902px) 100vw, 902px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">So &#8230; which one is the best<\/h3>\n\n\n\n<p>\u5728\u5bf9\u6bd4\u4e86\u5404\u4e2a\u91c7\u6837\u5668\u5728\u591a\u4e2a\u7ef4\u5ea6\u7684\u8868\u73b0\u4e4b\u540e\uff0c\u63a8\u8350\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5982\u679c\u60f3\u8981\u901f\u5ea6\u5feb\u3001\u6536\u655b\u6027\u597d\u3001\u8d28\u91cf\u4e5f\u4e0d\u9519\uff0c\u4e14\u60f3\u8bd5\u8bd5\u65b0\u4e1c\u897f\u7684\u8bdd\uff0c\u6700\u597d\u9009\u62e9\uff1a<\/li>\n\n\n\n<li>DPM++ 2M Karras\u300120-30 \u6b65<\/li>\n\n\n\n<li>UniPC\u300120-30 \u6b65<\/li>\n\n\n\n<li>\u5982\u679c\u60f3\u8981\u6bd4\u8f83\u597d\u7684\u8d28\u91cf\uff0c\u540c\u65f6\u4e0d\u5728\u610f\u662f\u5426\u6536\u655b\u7684\u8bdd\uff0c\u53ef\u4ee5\u9009\u62e9\uff1a<\/li>\n\n\n\n<li>DPM++ SDE Karras\u300110-15 \u6b65 \uff08\u6ce8\u610f\u8be5\u91c7\u6837\u5668\u6bd4\u8f83\u6162\uff09<\/li>\n\n\n\n<li>DDIM\u300110-15 \u6b65<\/li>\n\n\n\n<li>\u5982\u679c\u60f3\u8981\u7a33\u5b9a\u3001\u53ef\u590d\u73b0\u7684\u7ed3\u679c\uff0c\u4e0d\u8981\u7528\u4efb\u4f55\u5e26\u6709\u968f\u673a\u6027\u7684\u91c7\u6837\u5668\uff0c\u6bd4\u5982\u7956\u5148\u91c7\u6837\u5668<\/li>\n\n\n\n<li>\u5982\u679c\u60f3\u751f\u6210\u4e00\u4e9b\u7b80\u5355\u7684\u7ed3\u679c\uff0c\u53ef\u4ee5\u7528 Euler \u6216 Heun\u3002\u5728\u4f7f\u7528 Heun \u65f6\uff0c\u53ef\u4ee5\u8c03\u4f4e\u4e00\u4e9b\u6b65\u6570\u6765\u8282\u7701\u65f6\u95f4\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u91c7\u6837\u5668\u7b80\u4ecb<\/h3>\n\n\n\n<p>SD webui \u4e2d\u6709\u5404\u79cd\u91c7\u6837\u5668\u7684\u76f8\u5173\u4fe1\u606f\u3002\u8fd9\u4e9b\u91c7\u6837\u5668\u7684\u5185\u90e8\u5de5\u4f5c\u539f\u7406\u9700\u8981\u5927\u91cf\u6570\u5b66\u77e5\u8bc6\u6765\u7406\u89e3\u3002\u8fd9\u91cc\u5c06\u8be6\u7ec6\u89e3\u91ca\u4e00\u4e0b\u6700\u7b80\u5355\u7684 Euler\uff0c\u7b80\u7565\u4ecb\u7ecd\u5176\u4ed6\u91c7\u6837\u5668\uff0c\u5b83\u4eec\u4e5f\u4e0e Euler \u6709\u8bb8\u591a\u5171\u901a\u70b9\u3001<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Euler<\/h3>\n\n\n\n<p>Euler \u53ef\u80fd\u662f\u6700\u76f4\u63a5\u7684\u91c7\u6837\u5668\uff0c\u5176\u6570\u5b66\u672c\u8d28\u5c31\u662f\u7528\u4e8e\u89e3\u51b3\u5e38\u5fae\u5206\u65b9\u7a0b\u7684<a href=\"https:\/\/zhida.zhihu.com\/search?q=%E6%AC%A7%E6%8B%89%E6%96%B9%E6%B3%95&amp;zhida_source=entity&amp;is_preview=1\" target=\"_blank\" rel=\"noreferrer noopener\">\u6b27\u62c9\u65b9\u6cd5<\/a>\u3002Euler \u91c7\u6837\u5668\u662f\u5b8c\u5168\u786e\u5b9a\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5728\u91c7\u6837\u8fc7\u7a0b\u4e2d\u4e0d\u4f1a\u5f15\u5165\u4efb\u4f55\u7684\u968f\u673a\u566a\u58f0\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u9010\u6b65\u62c6\u89e3\u91c7\u6837\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u6b65\uff1a\u5728\u9690\u5c42\u7a7a\u95f4\u4e2d\uff0c\u566a\u58f0\u9884\u6d4b\u5668\u4f30\u8ba1\u51fa\u56fe\u50cf\u4e2d\u7684\u566a\u58f0<\/li>\n\n\n\n<li>\u7b2c\u4e8c\u6b65\uff1a\u6839\u636e noise schedule\uff0c\u8ba1\u7b97\u51fa\u9700\u8981\u88ab\u51cf\u6389\u7684<a href=\"https:\/\/zhida.zhihu.com\/search?q=%E5%99%AA%E5%A3%B0%E7%B3%BB%E6%95%B0&amp;zhida_source=entity&amp;is_preview=1\" target=\"_blank\" rel=\"noreferrer noopener\">\u566a\u58f0\u7cfb\u6570<\/a>\uff0c\u8fd9\u5728\u6bcf\u4e00\u6b65\u662f\u4e0d\u540c\u7684<\/li>\n\n\n\n<li>\u7b2c\u4e09\u6b65\uff1a\u5c06\u7b2c\u4e00\u6b65\u7684\u566a\u58f0\u4e0e\u7b2c\u4e8c\u6b65\u7684\u7cfb\u6570\u4e58\u8d77\u6765\uff0c\u4ece\u9690\u5c42\u56fe\u7247\u4e2d\u51cf\u6389\u7684\u8be5\u566a\u58f0\u91cf<\/li>\n<\/ol>\n\n\n\n<p>\u91cd\u590d\u4e0a\u8ff0\u6b65\u9aa4\uff0c\u76f4\u5230 noise schedule \u7ed3\u675f\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\u6211\u4eec\u600e\u4e48\u77e5\u9053\u6bcf\u4e00\u6b65\u7684\u566a\u58f0\u7cfb\u6570\u5e94\u8be5\u662f\u591a\u5c11\u5462\uff1f\u5b9e\u9645\u4e0a\uff0c\u8fd9\u5c31\u662f\u6211\u4eec\u9700\u8981\u544a\u8bc9\u91c7\u6837\u5668\u7684 noise schedule\u3002<\/p>\n\n\n\n<p>noise schedule \u544a\u8bc9\u91c7\u6837\u5668\u6bcf\u4e00\u6b65\u7684\u566a\u58f0\u5e94\u8be5\u662f\u591a\u5c11\u3002\u566a\u58f0\u9884\u6d4b\u5668\u6839\u636e\u5e94\u8be5\u5b58\u5728\u7684\u566a\u58f0\u603b\u91cf\u6765\u4f30\u8ba1\u9690\u5c42\u56fe\u50cf\u4e2d\u7684\u566a\u58f0\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"397\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-4.webp\" alt=\"\" class=\"wp-image-443\" srcset=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-4.webp 720w, https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/image-4-300x165.webp 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>\u5728\u7b2c\u4e00\u6b65\u7684\u566a\u58f0\u91cf\u662f\u6700\u9ad8\u7684\uff0c\u7136\u540e\u566a\u58f0\u4f1a\u968f\u7740\u6b65\u6570\u7684\u589e\u52a0\u4e0d\u65ad\u964d\u4f4e\uff0c\u76f4\u5230\u5728\u6700\u540e\u4e00\u6b65\u964d\u81f3 0\u3002\u6539\u53d8\u91c7\u6837\u6b65\u6570\uff0c\u5c31\u4f1a\u5bf9\u5e94\u7684\u6539\u53d8 noise schedule\u3002\u6bd4\u5982\u6211\u4eec\u589e\u5927\u91c7\u6837\u6b65\u6570\uff0c\u90a3\u4e48\u6bcf\u4e00\u6b65\u566a\u58f0\u4e0b\u964d\u7684\u4f1a\u66f4\u5c11\uff0c\u8fd9\u6709\u52a9\u4e8e\u51cf\u5c11\u91c7\u6837\u8fc7\u7a0b\u4e2d\u7684\u622a\u65ad\u8bef\u5dee\u3002<\/p>\n\n\n\n<p>\u4e3a\u4ec0\u4e48\u786e\u5b9a\u6027\u7684 ODE \u6c42\u89e3\u5668\u80fd\u591f\u6c42\u89e3\u968f\u673a\u91c7\u6837\u95ee\u9898\u5462\uff1f\u8fd9\u79f0\u4e3a\u6982\u7387\u6d41\uff08<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/arxiv.org\/abs\/2011.13456\" target=\"_blank\" rel=\"noreferrer noopener\">probability flow<\/a>\uff09\uff0c\u6211\u4eec\u4e0d\u662f\u89e3\u51b3\u6837\u672c\u5982\u4f55\u6f14\u5316\uff08evolve\uff09\uff0c\u800c\u662f\u89e3\u51b3\u5176\u6982\u7387\u5206\u5e03\u7684\u6f14\u5316\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u6c42\u89e3\u968f\u673a\u8fc7\u7a0b\u4e2d\u7684\u6982\u7387\u5206\u5e03\u800c\u4e0d\u662f\u6837\u672c\u8f68\u8ff9\u3002<\/p>\n\n\n\n<p>\u4e0e\u6f02\u79fb\u8fc7\u7a0b\uff08drift process\uff09\u5bf9\u7167\uff0cODE \u6c42\u89e3\u5668\u7684\u5bf9\u5e94\u5173\u7cfb\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Time \u2192 noise<\/li>\n\n\n\n<li>Time quantization \u2192 noise schedule<\/li>\n\n\n\n<li>Position \u2192 latent image<\/li>\n\n\n\n<li>Velocity \u2192 Predicted noise<\/li>\n\n\n\n<li>Initial position \u2192 Initial random latent image<\/li>\n\n\n\n<li>Final position \u2192 Final clear latent image<\/li>\n<\/ul>\n\n\n\n<p><strong>\u91c7\u6837\u793a\u4f8b<\/strong><\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4f7f\u7528 Euler \u91c7\u6837\u8fdb\u884c\u6587\u751f\u56fe\u7684\u4e00\u4e2a\u793a\u4f8b\u3002noise schedule \u6307\u793a\u4e86\u6bcf\u4e00\u6b65\u4e2d\u7684\u566a\u58f0\u5f3a\u5ea6\u3002\u91c7\u6837\u5668\u7684\u5de5\u4f5c\u5c31\u662f\u5728\u6bcf\u4e00\u6b65\u4e2d\uff0c\u6839\u636e noise schedule \u7684\u8bbe\u5b9a\uff0c\u548c UNet \u566a\u58f0\u9884\u6d4b\u7f51\u7edc\u7684\u8f93\u51fa\uff0c\u4ece\u566a\u58f0\u56fe\u4e2d\u51cf\u6389\u9002\u91cf\u7684\u566a\u58f0\uff0c\u76f4\u5230\u6700\u7ec8\u566a\u58f0\u4e3a 0\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/blog.ppdd.vip\/wp-content\/uploads\/2024\/08\/v2-34754be078e092db6e47af3b31cc5ff1_b.webp\" alt=\"\u52a8\u56fe\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Euler a<\/h3>\n\n\n\n<p>Euler ancestral (Euler a) \u91c7\u6837\u5668\u4e0e Euler \u91c7\u6837\u5668\u7c7b\u4f3c\u3002\u533a\u522b\u5728\u4e8e\uff0cEuler a \u4f1a\u5728\u6bcf\u4e00\u6b65\u51cf\u6389\u66f4\u591a\u7684\u566a\u58f0\uff0c\u7136\u540e\u5b83\u4f1a\u5728\u91c7\u6837\u4e00\u4e9b\u968f\u673a\u566a\u58f0\u52a0\u56de\u5230\u566a\u58f0\u56fe\u4e2d\uff0c\u8fd9\u6837\u4e0e noise schedule \u4e2d\u8bbe\u5b9a\u7684\u566a\u58f0\u5f3a\u5ea6\u5339\u914d\u3002Euler a \u4e2d\u7684\u53bb\u566a\u56fe\u4e0e\u4e4b\u524d\u7684\u6b65\u6570\u4e2d\u52a0\u5165\u4e86\u4ec0\u4e48\u6837\u7684\u566a\u58f0\u6709\u5173\uff0c\u56e0\u6b64\u5b83\u88ab\u79f0\u4e3a\u7956\u5148\u91c7\u6837\u5668\uff08ancestral sampler \uff09\u3002\u7531\u4e8e\u5728\u8fc7\u7a0b\u4e2d\u52a0\u5165\u4e86\u989d\u5916\u7684\u566a\u58f0\uff0c\u6240\u4ee5\u7956\u5148\u91c7\u6837\u5668\u4e24\u6b21\u7684\u91c7\u6837\u7ed3\u679c\u4f1a\u662f\u4e0d\u540c\u7684\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DDIM<\/h3>\n\n\n\n<p><a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/arxiv.org\/abs\/2010.02502\" target=\"_blank\" rel=\"noreferrer noopener\">Denoising Diffusion Implicit Models (DDIM)<\/a>&nbsp;\u662f\u6700\u5148\u88ab\u63d0\u51fa\u7684\u6269\u6563\u6a21\u578b\u91c7\u6837\u5668\u4e4b\u4e00\u3002\u5b83\u7684\u6838\u5fc3\u60f3\u6cd5\u662f\u6bcf\u4e00\u6b65\u7684\u56fe\u7247\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u4ee5\u4e0b\u4e09\u4e2a\u4e1c\u897f\u6765\u8fd1\u4f3c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6700\u7ec8\u7684\u56fe\u7247<\/li>\n\n\n\n<li>\u56fe\u50cf\u65b9\u5411\u6307\u5411\u5f53\u524d\u6b65\u9aa4\u7684\u56fe\u50cf<\/li>\n\n\n\n<li>\u968f\u673a\u566a\u58f0<\/li>\n<\/ol>\n\n\n\n<p>\u53ef\u662f\u5728\u62b5\u8fbe\u6700\u540e\u4e00\u6b65\u4e4b\u524d\uff0c\u6211\u4eec\u600e\u4e48\u77e5\u9053\u6700\u7ec8\u7684\u56fe\u7247\u5462\uff1fDDIM \u91c7\u6837\u5668\u662f\u4f7f\u7528\u53bb\u566a\u56fe\u7247\u6765\u5bf9\u6700\u7ec8\u56fe\u7247\u8fdb\u884c\u4f30\u8ba1\u3002\u7c7b\u4f3c\u7684\uff0c\u56fe\u7247\u7684\u65b9\u5411\u4e5f\u662f\u901a\u8fc7\u566a\u58f0\u9884\u6d4b\u5668\u9884\u6d4b\u51fa\u7684\u566a\u58f0\u6765\u8fd1\u4f3c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">LMS and LMS Karras<\/h3>\n\n\n\n<p>\u4e0e Euler \u65b9\u6cd5\u7c7b\u4f3c\uff0c<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/en.wikipedia.org\/wiki\/Linear_multistep_method\" target=\"_blank\" rel=\"noreferrer noopener\">linear multistep method<\/a>&nbsp;(LMS) \u65b9\u6cd5\u4e5f\u662f\u7528\u4e8e\u89e3\u51b3 ODE \u7684\u4e00\u79cd\u6807\u51c6\u65b9\u6cd5\u3002\u4ed6\u901a\u8fc7\u5de7\u5999\u5229\u7528\u4e4b\u524d\u65f6\u95f4\u6b65\u7684\u503c\u6765\u63d0\u5347\u51c6\u786e\u5ea6\u3002SD webui \u9ed8\u8ba4\u4f7f\u7528\u81f3\u591a\u524d 4 \u6b65\u7684\u503c\u3002<\/p>\n\n\n\n<p>LMS Karras \u4f7f\u7528\u4e86 Karras \u7684 noise schedule\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Heun<\/h3>\n\n\n\n<p><a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/en.wikipedia.org\/wiki\/Heun%27s_method\" target=\"_blank\" rel=\"noreferrer noopener\">Heun\u2019s method<\/a>&nbsp;\u6bd4 Euler \u65b9\u6cd5\u66f4\u51c6\u786e\uff0c\u4f46\u662f\u5b83\u5728\u6bcf\u6b65\u9700\u8981\u9884\u6d4b\u4e24\u6b21\u566a\u58f0\uff0c\u6240\u4ee5\u5b83\u6bd4 Euler \u6162\u4e24\u500d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DPM Solvers<\/h3>\n\n\n\n<p>Diffusion Probabilistic Model Solvers (<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/arxiv.org\/abs\/2206.00927\" target=\"_blank\" rel=\"noreferrer noopener\">DPM-Solvers<\/a>) \u662f\u4e00\u7cfb\u5217\u65b0\u63d0\u51fa\u7684\u6269\u6563\u6a21\u578b\u6c42\u89e3\u5668\u3002\u5728 SD webui \u4e2d\uff0c\u5305\u542b\u4ee5\u4e0b\u51e0\u79cd\uff1aDPM2\uff0cDPM2 Karras\uff0cDPM2 a\uff0cDPM2 a Karras\uff0cDPM Fast\uff0cDPM adaptive\uff0cDPM Karras\u3002<\/p>\n\n\n\n<p><strong>DPM2<\/strong>&nbsp;\u5c31\u662f&nbsp;<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/arxiv.org\/abs\/2206.00927\" target=\"_blank\" rel=\"noreferrer noopener\">DPM-Solver<\/a>&nbsp;\u8bba\u6587\u4e2d\u7684 DPM-Solver-2 (Algorithm 1)\uff0c\u662f\u4e00\u79cd\u7cbe\u786e\u5230\u4e8c\u9636\u6c42\u89e3\u5668\u3002<\/p>\n\n\n\n<p><strong>DPM2 Karras<\/strong>&nbsp;\u548c DPM2 \u57fa\u672c\u76f8\u540c\uff0c\u4f46\u662f\u4f7f\u7528\u4e86 Karras \u7684 noise schedule\u3002<\/p>\n\n\n\n<p><strong>DPM2 a<\/strong>&nbsp;\u4e5f\u4e0e DPM2 \u57fa\u672c\u76f8\u540c\uff0c\u4f46\u662f\u4f5c\u4e3a\u4e00\u79cd\u7956\u5148\u91c7\u6837\u5668\uff0c\u5b83\u5728\u6bcf\u4e00\u6b65\u6dfb\u52a0\u4e86\u989d\u5916\u7684\u566a\u58f0\u3002<\/p>\n\n\n\n<p><strong>DPM2 a Karras<\/strong>&nbsp;\u662f\u5728 DPM2 a \u7684\u57fa\u7840\u4e0a\u518d\u4f7f\u7528\u4e86 Karras \u7684 noise schedule\u3002<\/p>\n\n\n\n<p><strong>DPM Fast<\/strong>&nbsp;\u7684 noise schedule \u662f\u5747\u5300\u7684\u3002\u5b83\u7cbe\u786e\u5230\u4e00\u9636\uff0c\u6bd4 DPM2 \u7cfb\u5217\u5feb\u4e24\u500d\u3002<\/p>\n\n\n\n<p><strong>DPM adaptive<\/strong>&nbsp;\u4e5f\u662f\u4e00\u9636\u7684 DPM Solver\uff0c\u5176 noise schedule \u662f\u81ea\u9002\u5e94\u7684\uff0c\u5b83\u4f1a\u65e0\u89c6\u6211\u4eec\u8bbe\u7f6e\u7684\u53bb\u566a\u6b65\u6570\uff0c\u5e76\u81ea\u9002\u5e94\u5730\u81ea\u884c\u51b3\u5b9a\u6b65\u6570\u3002<\/p>\n\n\n\n<p><strong>DPM++<\/strong>&nbsp;\u91c7\u6837\u5668\u662f DPM \u7684\u4f18\u5316\u7248\u672c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">UniPC<\/h3>\n\n\n\n<p><a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/unipc.ivg-research.xyz\/\" target=\"_blank\" rel=\"noreferrer noopener\">UniPC<\/a>&nbsp;(Unified Predictor Corrector method) \u662f 2023 \u5e74\u65b0\u63d0\u51fa\u7684\u4e00\u79cd\u91c7\u6837\u5668\u3002\u5b83\u5305\u542b\u4e24\u90e8\u5206\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unified predictor (UniP)<\/li>\n\n\n\n<li>Unified corrector (UniC)<\/li>\n<\/ul>\n\n\n\n<p>\u5b83\u652f\u6301\u4efb\u4f55\u6c42\u89e3\u5668\uff0c\u4efb\u4f55\u566a\u58f0\u9884\u6d4b\u5668\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/zhuanlan.zhihu.com\/p\/673899723 \u5728 AUTOMATIC1111 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-411","post","type-post","status-publish","format-standard","hentry","category-ai"],"_links":{"self":[{"href":"https:\/\/blog.ppdd.vip\/index.php\/wp-json\/wp\/v2\/posts\/411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ppdd.vip\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ppdd.vip\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ppdd.vip\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ppdd.vip\/index.php\/wp-json\/wp\/v2\/comments?post=411"}],"version-history":[{"count":2,"href":"https:\/\/blog.ppdd.vip\/index.php\/wp-json\/wp\/v2\/posts\/411\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/blog.ppdd.vip\/index.php\/wp-json\/wp\/v2\/posts\/411\/revisions\/464"}],"wp:attachment":[{"href":"https:\/\/blog.ppdd.vip\/index.php\/wp-json\/wp\/v2\/media?parent=411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ppdd.vip\/index.php\/wp-json\/wp\/v2\/categories?post=411"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ppdd.vip\/index.php\/wp-json\/wp\/v2\/tags?post=411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}