{"id":4032,"date":"2025-09-16T15:12:57","date_gmt":"2025-09-16T07:12:57","guid":{"rendered":"https:\/\/www.15zhi.net\/blog\/?p=4032"},"modified":"2025-09-16T15:12:57","modified_gmt":"2025-09-16T07:12:57","slug":"202509-%e8%ae%ba%e6%96%87%e7%a0%94%e8%af%bb-dreamfusion-text-to-3d-using-2d-diffusion","status":"publish","type":"post","link":"https:\/\/www.15zhi.net\/blog\/202509-%e8%ae%ba%e6%96%87%e7%a0%94%e8%af%bb-dreamfusion-text-to-3d-using-2d-diffusion\/","title":{"rendered":"202509 \u8bba\u6587\u7814\u8bfb-DreamFusion text-to-3D using 2D diffusion"},"content":{"rendered":"\n

\u4f5c\u8005\uff1aBen Poole\u3001Ajay Jain\u3001Jonathan T. Barron\u3001Ben Mildenhall
\u5355\u4f4d\uff1aGoogle Research\u3001UC Berkeley
\u6765\u6e90\uff1aICLR
\u65f6\u95f4\uff1a2023<\/p>\n\n\n\n

\u4e00\u3001\u7814\u7a76\u80cc\u666f\u53ca\u610f\u4e49<\/h3>\n\n\n\n

\u2460\u5f53\u524dAIGC\u5728text-to-image\u4ee5\u53caimage-to-image\u8fd9\u4e9b\u9886\u57df\u53d6\u5f97\u4e86\u98de\u901f\u8fdb\u5c55\u3002\u800c\u76f8\u6bd4\u4e8e2D\u89c6\u89c9\uff0c3D\u89c6\u89c9\u8fd1\u51e0\u5e74\u5f97\u5230\u4e86\u66f4\u591a\u7684\u5173\u6ce8\uff0c\u4ece\u8fd1\u51e0\u5e74CVPR\u7684Oral\u751a\u81f3Best paper candidate\u4e5f\u80fd\u770b\u51fa\u8fd9\u4e2a\u8d8b\u52bf\u3002\u6240\u4ee5\u5c06AIGC\u4ece2D\u9886\u57df\u5f15\u5165\u52303D\u9886\u57df\uff0c\u65e0\u8bba\u4ece\u5b66\u672f\u7814\u7a76\u8fd8\u662f\u4f01\u4e1a\u843d\u5730\uff0c\u90fd\u662f\u503c\u5f97\u63a2\u7d22\u7684\u3002
\u24613D\u751f\u6210\u4efb\u52a1\u8981\u6bd42D\u751f\u6210\u4efb\u52a1\u96be\u5f97\u591a\u3002\u56fe\u50cf\u6570\u636e\u7684\u6765\u6e90\u662f\u5e7f\u6cdb\u7684\uff0c\u65e0\u8bba\u662f\u6570\u636e\u751f\u4ea7\u8fd8\u662f\u4e92\u8054\u7f51\u56fe\u50cf\u7684\u722c\u53d6\uff0c\u751a\u81f3\u662f\u5728\u73b0\u6709\u7684\u5f00\u6e90\u6570\u636e\u96c6\u4e2d\uff0c2D\u6570\u636e\u90fd\u8981\u6bd43D\u6570\u636e\u591a\u7684\u591a\uff0c\u8fd9\u4fbf\u5728\u6570\u636e\u5c42\u9762\u4e0a\u9650\u5236\u4e863D\u751f\u6210\u5de5\u4f5c\u7684\u63a8\u8fdb\u3002\u5982\u4f55\u5c06\u73b0\u6709\u7684Diffusion model\uff08DM\uff09\u7528\u8d77\u6765\uff0c\u5e76\u89c4\u907f3D\u6570\u636e\u532e\u4e4f\u7684\u7f3a\u9677\uff0c\u662ftext-to-3D\u4efb\u52a1\u6240\u9762\u4e34\u7684\uff0c\u4e5f\u662f\u8981\u89e3\u51b3\u7684\u3002
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\u4e8c\u3001\u7814\u7a76\u601d\u8def\u53ca\u65b9\u6cd5<\/h3>\n\n\n\n

\uff081\uff09\u6a21\u578b<\/h4>\n\n\n\n
\"\"<\/figure>\n\n\n\n

DreamFusion\u6a21\u578b\u7ed3\u6784\u56fe
\u2460\u751f\u6210
DreamFusion\u91c7\u7528\u7684\u6269\u6563\u6a21\u578b\u51fa\u81ea\u8c37\u6b4c\u7684Imagen\uff0cImagen\u901a\u8fc7\u6269\u6563\u6a21\u578b\u53ef\u4ee5\u5b9e\u73b0text-to-image\u7684\u6548\u679c\u3002DreamFusion\u5c06Imagen\u4f5c\u4e3a\u6587\u751f\u56fe\u7684\u201c\u5de5\u5177\u201d\uff0c\u5e0c\u671b\u5728\u7ed9\u5b9a\u7684\u6587\u672ctext\u4f5c\u4e3a\u8f93\u5165\u7684\u60c5\u51b5\u4e0b\uff0c\u5f97\u5230\u6587\u672c\u5bf9\u5e94\u7684\u56fe\u50cf\u3002\u5728\u56fe\u50cf\u7684\u751f\u6210\u8fc7\u7a0b\u4e2d\uff0c\u4e0d\u540c\u89c6\u89d2\u7684\u751f\u6210\u53d7\u5230\u6587\u672c\u4e2d\u4e0e\u65b9\u5411\u6709\u5173\u7684\u63cf\u8ff0\u6240\u63a7\u5236\u3002
\u2461\u8868\u793a
\u5bf9\u4e8e\u751f\u6210\u5bf9\u8c61\u76843D\u8868\u793a\uff0cDreamFusion\u91c7\u7528\u4e86Mip-NeRF\u3002<\/p>\n\n\n\n

\uff082\uff09\u6574\u4f53\u6d41\u7a0b<\/h4>\n\n\n\n

\u2460\u7ed9\u5b9a\u4e00\u6bb5\u8f93\u5165\u7684\u6587\u672c\uff08\u4ee5pipeline\u4e2d\u7684\u201ca DSLR photo of a peacock on a surfboard”\u4e3a\u4f8b\uff09\uff0c\u5e76\u5c06\u5176\u9001\u5230\u8bad\u7ec3\u597d\u7684Imagen\u4e2d\uff0c\u6b64\u65f6\u53ef\u4ee5\u5f97\u5230\u8be5\u6587\u672c\u6240\u5bf9\u5e94\u7684\u751f\u6210\u56fe\u50cf\u3002
<\/p>\n\n\n\n

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

\u2461\u53e6\u4e00\u65b9\u9762\uff0c\u968f\u673a\u521d\u59cb\u5316NeRF\uff0c\u7136\u540e\u5728\u7403\u5750\u6807\u4e2d\u968f\u673a\u91c7\u6837\u4e00\u4e2a\u76f8\u673a\u53c2\u6570P\u5e76\u5728\u76f8\u673a\u5468\u56f4\u91c7\u6837\u70b9\u5149\u6e90\uff0c\u8fd9\u65f6\u6211\u4eec\u4fbf\u53ef\u4ee5\u5728\u76f8\u673aP\u4e0b\u5bf9NeRF\u573a\u8fdb\u884c\u6e32\u67d3\uff08render\uff09\uff0c\u4ece\u800c\u5f97\u5230\u8be5\u76f8\u673a\u53c2\u6570P\u4e0b\u5bf9\u5e94\u7684render\u56fe\u3002\u6ce8\u610f\uff0c\u8fd9\u91ccrender\u7684\u56fe\u50cf\u5206\u8fa8\u7387\u4e5f\u662f64*64\u7684\uff0c\u4ece\u800c\u4fdd\u8bc1\u4e0eImagen\u7684\u8f93\u51fa\u4fdd\u6301\u4e00\u81f4\u3002\u4e0d\u540c\u7684\u76f8\u673a\u53c2\u6570P\u5f71\u54cd\u4e86\u5bf9\u8f93\u5165\u6587\u672c\u7684\u66f4\u6539\uff0c\u4ece\u800c\u63a7\u5236Imagen\u7684\u751f\u6210\u8fc7\u7a0b\u3002
<\/p>\n\n\n\n

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

\u2462\u901a\u8fc7\u4e0a\u9762\u4e24\u6b65\uff0c\u53ef\u4ee5\u5f97\u5230\u4e86Imagen\u7684\u8f93\u51faa\uff0cNeRF\u7684render\u7ed3\u679cb\u3002\u73b0\u5728\u8981\u505a\u7684\u662f\uff0c\u600e\u4e48\u5229\u7528a\u548cb\uff0c\u4ece\u800c\u4f18\u5316NeRF\u7684\u7f51\u7edc\u53c2\u6570\uff0c\u5e76\u5f97\u5230\u6700\u7ec8\u9884\u671f\u7ed3\u679c\u3002
\u2463\u5177\u4f53\u6765\u8bf4\uff0c\u9996\u5148\u662f\u6269\u6563\u6a21\u578b\u56fa\u6709\u7684\u52a0\u566a\u8fc7\u7a0b\u3002\u901a\u8fc7\u4e0d\u65ad\u5730\u5f80render\u7ed3\u679cb\u4e0a\u52a0\u9ad8\u65af\u566a\u58f0b’\uff0c\u6700\u7ec8\u53ef\u4ee5\u5f97\u5230\u7eaf\u566a\u58f0c\u3002\u6b64\u65f6\u5bf9\u8fd9\u4e2a\u7eaf\u566a\u58f0c\u6267\u884c\u53bb\u566a\u8fc7\u7a0b\uff08\u4e2a\u4eba\u8ba4\u4e3a\u8fd9\u65f6\u53ef\u4ee5\u628aImagen\u5f53\u4f5cVAE\u7684\u89e3\u7801\u5668\uff09\uff0c\u5e76\u5f97\u5230a’\u3002\u6211\u4eec\u77e5\u9053\uff0c\u6269\u6563\u6a21\u578b\u7684\u53bb\u566a\u8fc7\u7a0b\u5b9e\u9645\u4e0a\u662f\u5728\u4f30\u8ba1\u566a\u58f0\uff0c\u7136\u540e\u4f30\u8ba1\u7684\u566a\u58f0\u548c\u6dfb\u52a0\u7684\u566a\u58f0\u4e4b\u95f4\u6c42loss\u3002\u6240\u4ee5a’\u4e0e\u52a0\u5165\u7684\u9ad8\u65af\u566a\u58f0b’\u76f8\u51cf\uff0c\u4fbf\u6709\u4e86c’\u3002c’\u5c06\u76f4\u63a5\u7528\u6765\u66f4\u65b0NeRF\u7684\u6743\u91cd\uff0c\u4ece\u800c\u4f7frender\u7684\u7ed3\u679cb\u66f4\u52a0\u771f\u5b9e\uff0c\u5982\u6b64\u8fed\u4ee3\u4e0b\u53bb\u3002\u3002\u3002\u4fbf\u53ef\u4ee5\u5f97\u5230text-to-3D\u7684\u6548\u679c\u3002<\/p>\n\n\n\n

\uff083\uff09SDS LOSS<\/h4>\n\n\n\n
\"\"<\/figure>\n\n\n\n

SDS\u7684\u539f\u7406
\u2460\u5bf9\u4e8e\u4e00\u4e2a\u7528\u03b8_i\u8868\u793a\u7684\u53c2\u6570\u5316\u7f51\u7edc\uff08\u5bf9\u5e94\u672c\u6587\u7684\u53c2\u6570\u5316NeRF\uff09
\u2461\u901a\u8fc7\u53ef\u5fae\u7684\u56fe\u50cf\u751f\u6210\u5668g(\u03b8_i)\u5f97\u5230\u4e86\u53d8\u6362\u540e\u7684x_i\uff0c\u5728\u4e0a\u56fe\u4e2d\u628a\u8fd9\u91cc\u7684g(\u00b7)\u8868\u793a\u6210flip(\u00b7)\uff08\u5bf9\u5e94\u672c\u6587NeRF\u7684\u53ef\u5fae\u6e32\u67d3\u8fc7\u7a0b\uff09
\u2462\u5c06\u751f\u6210\u5668g(\u03b8_i)\u5f97\u5230\u7684x_i\u4e0e\u771f\u503c\u7684x \u0302_i\u6c42\u635f\u5931L(x_i)\u5e76\u901a\u8fc7\u68af\u5ea6\u4e0b\u964d\u7684\u65b9\u5f0f\u66f4\u65b0\u03b8_i\uff0c\u4ece\u800c\u4f7f\u6ee1\u8db3\u9884\u671f\u8981\u6c42\uff08\u5bf9\u5e94\u672c\u6587\u7684\u901a\u8fc7c’\u6765\u66f4\u65b0NeRF\u7684\u53c2\u6570\uff09\u3002<\/p>\n\n\n\n

\u4e09\u3001\u7ed3\u679c<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

\u56db\u3001\u603b\u7ed3\u4e0e\u601d\u8003<\/h3>\n\n\n\n

\uff081\uff09\u603b\u7ed3<\/h4>\n\n\n\n

DreamFusion\u5c06\u6bd4\u8f83\u706b\u70ed\u7684\u5927\u8bed\u8a00\u6a21\u578b\u5f15\u5165\u52303D\u5185\u5bb9\u751f\u6210\u4e2d\uff1b
\u6269\u6563\u6a21\u578b\u548cNeRF\u4e24\u5927\u70ed\u70b9\u76f8\u7ed3\u5408\uff1b
\u5206\u8fa8\u7387\u548c\u751f\u6210\u6548\u7387\u95ee\u9898\u662f\u77ed\u677f\uff1b
\u7528\u5e26\u6709\u65b9\u5411\u4fe1\u606f\u7684\u6587\u672c\u6765\u63a7\u5236\u4e0d\u540c\u89c6\u89d2\u7684\u751f\u6210\uff0c\u8fd9\u79cd\u505a\u6cd5\u5bf9\u62d3\u6251\u7ed3\u6784\u7b80\u5355\u7684\u5bf9\u8c61\u662f\u53ef\u884c\u7684\uff0c\u4f46\u662f\u5982\u679c\u66f4\u6362\u6210\u66f4\u52a0\u590d\u6742\u7684\u5bf9\u8c61\uff08\u6bd4\u5982\u4eba\u4f53\u3001\u4eba\u624b\uff09\uff0c\u5176\u751f\u6210\u7ed3\u679c\u4f1a\u53d8\u5f97\u5f88\u7cdf\u7cd5\u3002<\/p>\n\n\n\n

\uff082\uff09\u601d\u8003<\/h4>\n\n\n\n

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<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4f5c\u8005\uff1aBen Poole\u3001Ajay Jain\u3001Jonathan T. Barron\u3001Ben Mildenhal […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4032","post","type-post","status-publish","format-standard","hentry","category-events"],"_links":{"self":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts\/4032","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/comments?post=4032"}],"version-history":[{"count":1,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts\/4032\/revisions"}],"predecessor-version":[{"id":4039,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts\/4032\/revisions\/4039"}],"wp:attachment":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/media?parent=4032"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/categories?post=4032"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/tags?post=4032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}