{"id":12001,"date":"2023-01-30T14:09:14","date_gmt":"2023-01-30T06:09:14","guid":{"rendered":"http:\/\/139.9.1.231\/?p=12001"},"modified":"2023-01-30T14:09:16","modified_gmt":"2023-01-30T06:09:16","slug":"clip-nerf","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2023\/01\/30\/clip-nerf\/","title":{"rendered":"CLIP-NeRF:\u6587\u672c\u548c\u56fe\u50cf\u9a71\u52a8\u7684NeRF\u7f16\u8f91\u6846\u67b6"},"content":{"rendered":"\n<p class=\"has-text-align-center\">\u8bba\u6587\uff1a<a rel=\"noreferrer noopener\" href=\"https:\/\/arxiv.org\/abs\/2112.05139\" target=\"_blank\">(CVPR 2022) CLIP-NeRF: Text-and-Image Driven Manipulation of Neural Radiance Fields<\/a><\/p>\n\n\n\n<p class=\"has-text-align-center\">\u9879\u76ee\u4e3b\u9875\uff1a<a href=\"https:\/\/cassiepython.github.io\/clipnerf\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/cassiepython.github.io\/clipnerf\/<\/a><\/p>\n\n\n\n<h3 id=\"h_590868929_1\"><strong>Overview<\/strong><\/h3>\n\n\n\n<ul><li>\u63d0\u51fa\u4e86\u7b2c\u4e00\u4e2a\u7edf\u4e00\u6587\u672c\u548c\u56fe\u50cf\u9a71\u52a8\u7684NeRF\u7f16\u8f91\u6846\u67b6\uff0c\u4f7f\u5f97\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u6587\u672c\u63d0\u793a\u6216\u793a\u4f8b\u56fe\u50cf\u5bf93D\u5185\u5bb9\u8fdb\u884c\u7075\u6d3b\u7f16\u8f91\u3002<\/li><li>Zs\u00a0\u548cZa\uff0c\u5206\u522b\u63a7\u5236\u5f62\u72b6\u548c\u5916\u89c2\u3002<\/li><li>\u63d0\u51fafeed forward mapper\uff0c\u80fd\u591f\u5b9e\u73b0\u5feb\u901f\u63a8\u7406\u51fa\u7528\u6237\u8f93\u5165\u5bf9\u7269\u4f53\u5f62\u72b6\u548c\u5916\u89c2\u7684\u6539\u53d8\u91cf\u3002<\/li><li>\u63d0\u51fa\u4e86\u4e00\u79cd\u53cd\u6f14\u65b9\u6cd5\uff0c\u5229\u7528EM\u7b97\u6cd5\u4ece\u771f\u5b9e\u7684\u56fe\u50cf\u4e2d\u63a8\u65ad\u51fa\u76f8\u673a\u4f4d\u59ff\u3001Zs\u00a0\u548c\u00a0Za\uff0c\u8fdb\u800c\u5b9e\u73b0\u7f16\u8f91\u73b0\u6709\u7269\u4f53\u7684\u5f62\u72b6\u3001\u5916\u89c2\u3001\u59ff\u6001\u3002<\/li><\/ul>\n\n\n\n<h3><strong>Network architecture<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"565\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-60-1024x565.png\" alt=\"\" class=\"wp-image-12010\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-60-1024x565.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-60-300x165.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-60-768x424.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-60.png 1503w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul><li>\u4e0e<strong>GRAF<\/strong>\u4e0d\u540c\uff0c\u8be5\u7f51\u7edc\u5e76\u4e0d\u662f\u5c06\u00a0Zs\u00a0\u76f4\u63a5\u4e0epositional encoding\u62fc\u63a5\u8d77\u6765\u9001\u5165\u795e\u7ecf\u8f90\u5c04\u573a\uff0c\u800c\u662f\u5148\u7528deformation network\uff08\u53d7\u5230Nerfies\u542f\u53d1\uff09\u751f\u6210\u539f\u59cb\u4f4d\u7f6e\u7f16\u7801\u7684\u504f\u79fb\u91cf\u5e76\u4e0e\u539f\u59cb\u4f4d\u7f6e\u7f16\u7801\u76f8\u52a0\uff0c\u518d\u9001\u5165\u540e\u7eed\u8f90\u5c04\u573a\u4e2d\u3002\u4f18\u70b9\uff1a\u4f7f\u7528tanh\u51fd\u6570\u9650\u5236deformation network\u8f93\u51fa\u7684\u504f\u79fb\u91cf\u7684\u503c\u57df\uff0c\u63d0\u5347\u4e86shape\u64cd\u63a7\u7684\u9c81\u68d2\u6027\u4e0e\u7a33\u5b9a\u6027\uff0c\u540c\u65f6\u4f7f\u5f97\u5bf9shape\u7684\u64cd\u7eb5\u5bf9\u4e8eappearance\u65e0\u5f71\u54cd\uff08\u4f20\u7edfconditional NeRF\uff0c\u5982GRAF\uff0c\u5b9e\u9645\u4e0a\u6539\u53d8\u00a0Zs\u4f1a\u5bf9appearance\u4ea7\u751f\u4e00\u4e9b\u5f71\u54cd\uff09\u3002<\/li><li>\u5148\u9884\u8bad\u7ec3\u597d\u4e00\u4e2a\u89e3\u8026\u6761\u4ef6NeRF\uff0c\u4f7f\u5f97NeRF\u80fd\u591f\u5145\u5206\u5b66\u4e60\u5230\u573a\u666f\u76843D\u4fe1\u606f\u4ee5\u53ca\u751f\u6210\u51fa\u771f\u5b9e\u7684\u573a\u666f\u7269\u4f53\u3002<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-61.png\" alt=\"\" class=\"wp-image-12014\" width=\"439\" height=\"79\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-61.png 644w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-61-300x54.png 300w\" sizes=\"(max-width: 439px) 100vw, 439px\" \/><\/figure><\/div>\n\n\n\n<ul><li>\u7136\u540e\u5229\u7528CLIP distance\u8bad\u7ec3CLIP\u5206\u652f\u4e2d\u7684shape mapper and appearance mapper\uff08\u56fa\u5b9a\u5176\u4ed6\u6a21\u5757\u7684\u53c2\u6570\uff09\u3002\u4f7f\u5f97mapper\u80fd\u591f\u6b63\u786e\u5b66\u4e60\u5230\u5982\u4f55\u5c06\u7528\u6237\u8f93\u5165\u7684modify \u4fe1\u606f\u6620\u5c04\u4e3a\u00a0Zs, Za\u00a0\u7684\u6539\u53d8\u91cf\u4ee5\u4f7f\u5f97NeRF\u6b63\u786e\u751f\u6210\u76ee\u6807\u7ed3\u679c<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-62.png\" alt=\"\" class=\"wp-image-12018\" width=\"427\" height=\"143\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-62.png 643w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-62-300x101.png 300w\" sizes=\"(max-width: 427px) 100vw, 427px\" \/><\/figure><\/div>\n\n\n\n<h3 id=\"h_590868929_3\"><strong>Inverse Manipulation<\/strong><\/h3>\n\n\n\n<p>\u4e3a\u4e86\u83b7\u5f97\u67d0\u7269\u4f53\u5bf9\u5e94\u7684latent code\u4ee5\u4fbf\u5bf9\u5176\u5b9e\u65bd\u7f16\u8f91\uff0c\u4f5c\u8005\u6839\u636eEM\u7b97\u6cd5(\u00a0Expectation Maximization Algorithm\u3002\u671f\u671b\u6700\u5927\u7b97\u6cd5)\u8bbe\u8ba1\u4e86\u4e00\u79cd\u8fed\u4ee3\u65b9\u6cd5\u6765\u4ea4\u66ff\u4f18\u5316\u00a0\u3001Zs\u3001Za\u00a0\u548c\u76f8\u673a\u4f4d\u59ff\u00a0v\u00a0\uff0c\u672c\u8d28\u662f\u4f18\u5316\u5404\u9879\u53c2\u6570\uff0c\u4f7f\u5f97\u5728\u8be5\u7ec4\u53c2\u6570\u4e0b\u5f97\u5230\u7684\u751f\u6210\u7ed3\u679c\u63a5\u8fd1\u4e8e\u5b9e\u9645\u7ed3\u679c\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-63.png\" alt=\"\" class=\"wp-image-12022\" width=\"463\" height=\"117\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-63.png 735w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-63-300x76.png 300w\" sizes=\"(max-width: 463px) 100vw, 463px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-64.png\" alt=\"\" class=\"wp-image-12023\" width=\"384\" height=\"100\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-64.png 586w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-64-300x78.png 300w\" sizes=\"(max-width: 384px) 100vw, 384px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-65.png\" alt=\"\" class=\"wp-image-12024\" width=\"425\" height=\"102\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-65.png 673w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-65-300x72.png 300w\" sizes=\"(max-width: 425px) 100vw, 425px\" \/><\/figure><\/div>\n\n\n\n<p>\u5176\u4e2dZn\u662f\u6270\u52a8\uff0c\u7528\u4e8e\u63d0\u5347\u4f18\u5316\u8fc7\u7a0b\u7684\u9c81\u68d2\u6027\uff0c\u00a0\u5165n\u00a0\u4ece1decay\u52300\uff0c\u8868\u793a\u8d8a\u5f80\u540e\u53c2\u6570\u5df2\u7ecf\u4f18\u5316\u5f97\u5dee\u4e0d\u591a\u4e86\uff0c\u90a3\u4e48\u6270\u52a8\u4e5f\u5c31\u76f8\u5e94\u5730\u51cf\u5c0f\u3002<\/p>\n\n\n\n<p>\u5f53\u83b7\u5f97\u67d0\u7269\u4f53\u5bf9\u5e94\u7684\u00a0Zs,Za,v\u00a0\u540e\uff0c\u8f93\u5165\u6587\u672c\u4fbf\u53ef\u4ee5\u8f93\u51fa\u7f16\u8f91\u540e\u7684\u7269\u4f53\u3002<\/p>\n\n\n\n<h3 id=\"h_590868929_4\"><strong>Experiment results<\/strong><\/h3>\n\n\n\n<ul><li>Text-Driven<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"447\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-66-1024x447.png\" alt=\"\" class=\"wp-image-12029\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-66-1024x447.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-66-300x131.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-66-768x335.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-66.png 1472w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul><li>Exemplar-Driven Editing Results<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"302\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-67-1024x302.png\" alt=\"\" class=\"wp-image-12030\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-67-1024x302.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-67-300x89.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-67-768x227.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-67.png 1456w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul><li>Convert real image into corresponding latent code and camera pose, then use prompt to edit real image<\/li><\/ul>\n\n\n\n<p>\u5b9e\u73b0\u7f16\u8f91\u5e94\u8be5\u5c31\u662f\u5148\u53cd\u6f14\u51fa\u76ee\u6807\u56fe\u50cf\u5bf9\u5e94\u7684\u5404\u4e2alatent codes\uff0c\u7136\u540e\u5411CLIP encoder\u8f93\u5165\u53c2\u8003\u56fe\u50cf\/\u6587\u5b57\uff0c\u518d\u901a\u8fc7shape\/appearancce mapper\u5f97\u5230\u76f8\u5e94\u7684\u7f16\u8f91\u6539\u53d8\u91cf\uff0c\u5c06\u6539\u53d8\u91cf\u548c\u539f\u59cb\u63a8\u7b97\u51fa\u7684latent codes\u76f8\u52a0\uff0c\u518d\u5229\u7528NeRF\u524d\u5411\u6e32\u67d3\u51fa\u6700\u7ec8\u7f16\u8f91\u540e\u7684\u56fe\u50cf\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-68.png\" alt=\"\" class=\"wp-image-12031\" width=\"378\" height=\"326\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-68.png 696w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/01\/image-68-300x259.png 300w\" sizes=\"(max-width: 378px) 100vw, 378px\" \/><\/figure><\/div>\n\n\n\n<h3 id=\"h_590868929_5\"><strong>Limitations<\/strong><\/h3>\n\n\n\n<ul><li>\u65e0\u6cd5\u8fdb\u884c\u7ec6\u7c92\u5ea6\u7684\u7269\u4f53\u4fee\u6539\uff0c\u6bd4\u5982\u4fee\u6539\u8f66\u8f6e\u4e3a\u7ea2\u8272\u3002\u6839\u6e90\u5728\u4e8e\u9690\u7a7a\u95f4\u548c\u9884\u8bad\u7ec3CLIP\u7684\u56fa\u6709\u5c40\u9650\u6027\uff0c\u6bd4\u5982CLIP\u5c31\u6ca1\u6709\u5b66\u5230\u8f6e\u80ce\u7684\u8bed\u4e49\u4fe1\u606f\u3002<\/li><li>\u5c40\u9650\u4e8e\u4f7f\u7528\u6587\u672c\u548c\u793a\u4f8b\u56fe\u50cf\u5bf9\u4e8e<strong>\u5355\u4e2a\u7269\u4f53<\/strong>\u8fdb\u884c\u4fee\u6539\uff0c\u6ca1\u6709\u6269\u5c55\u5230\u590d\u6742\u573a\u666f\uff08\u5982object-nerf\u5904\u7406\u7684\u73b0\u5b9e\u573a\u666f\uff09\u3002\u5982\u4f55\u5b9e\u73b0\u591a\u7269\u4f53\u573a\u666f\u7684text\/img guided modify\uff1f<strong>\u7ed3\u5408object-nerf\u548cclip-nerf<\/strong>\uff1f<\/li><li>\u5148\u8bad\u7ec3\u597dNeRF\uff0c\u518d\u8bad\u7ec3mapping network\uff0c\u90a3\u5c31\u9650\u5b9a\u4e86\u6a21\u578b\u53ea\u80fd\u7528\u53c2\u8003\u6587\u5b57\/\u53c2\u8003\u56fe\u50cf\u7f16\u8f91\u56fa\u5b9a\u573a\u666f\u4e2d\u7684\u7269\u4f53\uff0c\u800c\u4e14\u901a\u8fc7\u6a21\u578b\u7ed3\u6784\u4e0d\u96be\u63a8\u6d4b\u51fa\uff0c\u8be5\u6a21\u578b\u8fc1\u79fb\u5230\u591a\u7269\u4f53\u6570\u636e\u96c6\u4e0a\u662f\u4e0d\u53ef\u884c\u7684\u3002\u5728\u591a\u7269\u4f53\u573a\u666f\u4e0b\uff0c\u7531\u4e8e\u6587\u672c\u53ea\u80fd\u5f71\u54cd\u5168\u5c40\u7684\u00a0Za,Zs\u00a0\uff0c\u56e0\u6b64\u7f16\u8f91\u4f1a\u5f71\u54cd\u573a\u666f\u4e2d\u7684\u6240\u6709\u7269\u4f53\u3002<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u8bba\u6587\uff1a(CVPR 2022) CLIP-NeRF: Text-and-Image Driven Manipul &hellip; <a href=\"http:\/\/139.9.1.231\/index.php\/2023\/01\/30\/clip-nerf\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">CLIP-NeRF:\u6587\u672c\u548c\u56fe\u50cf\u9a71\u52a8\u7684NeRF\u7f16\u8f91\u6846\u67b6<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,31],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/12001"}],"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=12001"}],"version-history":[{"count":22,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/12001\/revisions"}],"predecessor-version":[{"id":12033,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/12001\/revisions\/12033"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=12001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=12001"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=12001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}