{"id":15055,"date":"2023-05-11T09:39:55","date_gmt":"2023-05-11T01:39:55","guid":{"rendered":"http:\/\/139.9.1.231\/?p=15055"},"modified":"2023-07-10T13:35:13","modified_gmt":"2023-07-10T05:35:13","slug":"ai_3d","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2023\/05\/11\/ai_3d\/","title":{"rendered":"AI\u751f\u62103D\u6a21\u578b\uff1aDreamFusion\u3001Point-E\u3001Magic3D"},"content":{"rendered":"\n\n\n<h2>1\u3001DreamFusion\uff08\u8c37\u6b4c\uff09<\/h2>\n\n\n\n<p class=\"has-text-align-center\">\u9879\u76ee\u4e3b\u9875\uff1a<a href=\"https:\/\/dreamfusion3d.github.io\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/dreamfusion3d.github.io\/<\/a><\/p>\n\n\n\n<p class=\"has-text-align-center\">paper: <a href=\" https:\/\/arxiv.org\/abs\/2209.14988\"> <\/a><a href=\"https:\/\/arxiv.org\/abs\/2209.14988\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/arxiv.org\/abs\/2209.14988<\/a><\/p>\n\n\n\n<p class=\"has-text-align-center\">code:  <a href=\"https:\/\/github.com\/ashawkey\/stable-dreamfusion\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/github.com\/ashawkey\/stable-dreamfusion<\/a><\/p>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/dreamfusion-cdn.ajayj.com\/sept28\/banner_1x6_customhue_A.mp4\"><\/video><\/figure>\n\n\n\n<p>        \u8be5\u6587\u7ae0\u89e3\u51b3\u7684\u662f3D\u91cd\u5efa\u9886\u57df\u7684\u5c11\u89c6\u89d2\u91cd\u5efa(Sparse-view Reconstruction)\u95ee\u9898\uff0c\u7ed3\u5408\u4e86\u6269\u6563\u6a21\u578b\u548cNeRF\u3002<\/p>\n\n\n\n<h3>\u6458\u8981<\/h3>\n\n\n\n<p>        \u6700\u8fd1\u6269\u6563\u6a21\u578b\u5728\u4e0a\u4ebf\u7ea7\u522b\u7684\u6587\u672c-\u56fe\u50cf\u5bf9\u6570\u636e\u4e0a\u8bad\u7ec3\u5728\u6587\u672c\u56fe\u50cf\u751f\u6210\u4e0a\u53d6\u5f97\u5de8\u5927\u7684\u8fdb\u5c55\uff0c\u5c06\u8fd9\u79cd\u65b9\u6cd5\u5e94\u7528\u4e8e3D\u5408\u6210\uff0c\u9700\u8981\u5927\u89c4\u6a21\u7684\u6709\u6807\u7b7e\u76843D\u6570\u636e\u96c6\u548c\u9ad8\u6548\u7684\u67b6\u6784\u6765\u53bb\u566a3D\u6570\u636e\uff0c\u800c\u8fd9\u4e24\u8005\u76ee\u524d\u90fd\u4e0d\u5b58\u5728\u3002\u5728\u8fd9\u9879\u5de5\u4f5c\u4e2d\uff0c\u901a\u8fc7\u4f7f\u7528\u9884\u5148\u8bad\u7ec3\u597d\u7684\u4e8c\u7ef4\u7684\u6587\u672c\u5230\u56fe\u50cf\u7684\u6269\u6563\u6a21\u578b\u6765\u7ed5\u5f00\u8fd9\u4e9b\u9650\u5236\u8fdb\u884c\u6587\u672c\u52303D\u7684\u5408\u6210\u3002\u672c\u6587\u5f15\u5165\u4e00\u79cd\u57fa\u4e8e\u6982\u7387\u5bc6\u5ea6\u84b8\u998f\u7684\u635f\u5931\u51fd\u6570\uff0c\u53ef\u4ee5\u4f7f\u75282D\u7684\u6269\u6563\u6a21\u578b\u4f5c\u4e3a\u5148\u9a8c\u7528\u4e8e\u4f18\u5316\u53c2\u6570\u5316\u56fe\u50cf\u751f\u6210\u5668\u3002\u4f7f\u7528\u8fd9\u4e2a\u635f\u5931\u51fd\u6570\u5c31\u50cf\u4e00\u4e2aDeepDream-like\u7684\u8fc7\u7a0b\uff0c(\u8fd9\u91cc\u7684DeepDream\u662f\u8c37\u6b4c\u63d0\u51fa\uff0c\u4f7f\u7528\u68af\u5ea6\u4e0a\u5347\u7684\u65b9\u6cd5\u53ef\u89c6\u5316\u7f51\u7edc\u6bcf\u4e00\u5c42\u7684\u7279\u5f81\uff0c\u5373\u7528\u4e00\u5f20\u566a\u58f0\u56fe\u50cf\u8f93\u5165\u7f51\u7edc\uff0c\u53cd\u5411\u66f4\u65b0\u7684\u65f6\u5019\u4e0d\u66f4\u65b0\u7f51\u7edc\u6743\u91cd\uff0c\u800c\u662f\u66f4\u65b0\u521d\u59cb\u56fe\u50cf\u7684\u50cf\u7d20\u503c\uff0c\u4ee5\u8fd9\u79cd\u8bad\u7ec3\u56fe\u50cf\u7684\u65b9\u5f0f\u53ef\u89c6\u5316\u7f51\u7edc)\u3002\u672c\u6587\u68af\u5ea6\u4e0b\u964d\u4f18\u5316\u4e00\u4e2a\u968f\u673a\u521d\u59cb\u5316\u76843D\u6a21\u578b\u4f7f\u5f97\u4efb\u610f\u968f\u673a\u89c6\u89d2\u968f\u673a\u6e32\u67d3\u7684\u56fe\u50cf\u90fd\u8fbe\u5230\u8f83\u4f4e\u7684\u635f\u5931\u3002<strong>\u751f\u6210\u7684\u6a21\u578b\u53ef\u4ee5\u4efb\u610f\u4fee\u6539\uff0c\u4e0d\u9700\u8981\u4e09\u7ef4\u6570\u636e\uff0c\u4e5f\u4e0d\u9700\u8981\u4fee\u6539\u6269\u6563\u6a21\u578b\u3002<\/strong><\/p>\n\n\n\n<p>\u672c\u6587\u7684\u65b9\u6cd5\u548cDreamFields\u7684\u65b9\u6cd5\u7c7b\u4f3c\uff0c\u4f46\u662f\u7528\u4e00\u4e2a2D\u6269\u6563\u6a21\u578b\u84b8\u998f\u63a8\u5bfc\u800c\u6765\u7684\u635f\u5931\u51fd\u6570\u53d6\u4ee3CLIP\u3002\u8fd9\u4e2a\u635f\u5931\u51fd\u6570\u662f\u901a\u8fc7\u6982\u7387\u5bc6\u5ea6\u84b8\u998f\u800c\u6765\u7684\uff0c\u5c31\u662f\u7528KL- divergence\u6700\u5c0f\u5316\u524d\u5411\u8fc7\u7a0b\u548c\u53cd\u5411\u7684\u6982\u7387\u5bc6\u5ea6\uff0c\u8fd9\u91cc\u7684\u53cd\u5411\u8fc7\u7a0b\u662f\u662f\u4e0e\u8bad\u7ec3\u597d\u76842D\u6269\u6563\u6a21\u578b\uff0c\u56e0\u4e3a\u53cd\u5411\u8fc7\u7a0b\u4e5f\u662f\u4e00\u4e2a\u4f30\u8ba1score\u7684\u8fc7\u7a0b\uff0c\u6240\u4ee5\u6211\u7406\u89e3\u8fd9\u5c31\u662f\u4ed6\u53eb score distillation sampling\u7684\u539f\u56e0\u5427\u3002<\/p>\n\n\n\n<p>       \u8be5\u5de5\u4f5c\u57fa\u4e8e\u76843D\u8868\u793a\u65b9\u6cd5\u4e5f\u662fNeRF\u4e2d\u7684\u4e00\u79cd\u3002\u4e8b\u5b9e\u4e0a\uff0c\u57fa\u4e8eNeRF\u7684\u91cd\u5efa\u65b9\u6cd5\u901a\u5e38\u9700\u8981\u9488\u5bf9\u7279\u5b9a\u573a\u666f\u7684\u5927\u91cf\u7684\u89c6\u56fe\uff0c\u5e76\u4e14\u5bf9\u4e8e\u8bad\u7ec3\u96c6\u4e2d\u51fa\u73b0\u9891\u7387\u8f83\u5c11\u7684\u89c6\u89d2\uff0c\u5176\u5173\u4e8e\u8be5\u89c6\u89d2\u7684\u91cd\u5efa\u7ed3\u679c\u4e5f\u4f1a\u5f88\u5dee\u3002\u800c\u5bf9\u4e8e\u5c11\u89c6\u89d23D\u91cd\u5efa\uff0c\u867d\u7136\u6700\u8fd1\u5df2\u7ecf\u6709\u5f88\u591a\u5de5\u4f5c\u7ed3\u5408\u4e86\u6df1\u5ea6\u7f51\u7edc\u548c\u6e32\u67d3\u516c\u5f0f\u6765\u5b8c\u6210\u8fd9\u6837\u7684\u4efb\u52a1\uff0c\u4f46\u662f\u5b83\u4eec\u8981\u4e48\u7f3a\u4e4f3D\u4e00\u81f4\u6027\uff0c\u8981\u4e48\u611f\u77e5\u8d28\u91cf\u6bd4\u8f83\u5dee\u3002<\/p>\n\n\n\n<p>      \u57283D\u751f\u6210\u9886\u57df\uff0cDreamFusion\u4f7f\u7528\u6587\u672c\u6269\u6563\u6a21\u578b\u4f18\u53163D\u8868\u793a\uff0c\u5e76\u4e14\u53d6\u5f97\u4e86\u975e\u5e38\u597d\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"623\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-7-1024x623.png\" alt=\"\" class=\"wp-image-15117\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-7-1024x623.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-7-300x183.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-7-768x467.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-7.png 1385w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>      \u5982\u4e0a\u56fe\uff0c\u8fd9\u662fDreamFusion\u7684\u67b6\u6784\u56fe\uff0c\u53f3\u8fb9\u4e00\u90e8\u5206\u5c31\u662fDiffusion Model\uff0c\u8fd9\u91cc\u7528\u7684\u662f\u4e00\u4e2a\u9884\u8bad\u7ec3\u7684\u6a21\u578b\uff0c\u5de6\u8fb9\u4e00\u90e8\u5206\u5c31\u662fNeRF\uff0c\u662f\u4e00\u4e2a\u76ee\u6807\u573a\u666f\u76843D\u8868\u793a\uff0c\u867d\u7136\u753b\u7684\u82b1\u91cc\u80e1\u54e8\u7684\uff0c\u4f46\u662f\u5176\u5b9e\u601d\u8def\u975e\u5e38\u76f4\u767d\u7b80\u5355\uff1a<strong>\u8bad\u7ec3\u7684\u65f6\u5019\u9501\u4f4fDiffusion\u7684\u68af\u5ea6\uff0c\u589e\u52a0\u89c6\u89d2guidance\uff0c\u7528\u751f\u6210\u7ed3\u679c\u6765\u4f18\u5316\u548c\u8bad\u7ec3NeRF\uff1b\u6cdb\u5316\u9636\u6bb5\u53ea\u9700\u8981\u4f7f\u7528\u4f18\u5316\u540e\u7684NeRF\u5c31\u53ef\u4ee5\u4e86\u3002\u5728\u8fd9\u91cc\uff0cDiffsuion\u7684\u4f5c\u7528\u662f\u6839\u636e\u6587\u672c\u751f\u6210\u76f8\u5e94\u89c6\u89d2\u548c\u5185\u5bb9\u7684\u56fe\u7247\uff0cNeRF\u7684\u4f5c\u7528\u662f\u7ea6\u675f3D\u4e00\u81f4\u6027\u3002<\/strong><\/p>\n\n\n\n<h2>2\u3001<strong>Magic3D<\/strong>\uff08NVIDIA\uff09<\/h2>\n\n\n\n<p>\u9ad8\u5206\u8fa8\u7387\u6587\u672c\u52303D\u5185\u5bb9\u521b\u5efa\uff1a<\/p>\n\n\n\n<p class=\"has-text-align-center\">\u9879\u76ee\u4e3b\u9875\uff1a<a href=\"https:\/\/deepimagination.cc\/Magic3D\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/deepimagination.cc\/Magic3D\/<\/a><\/p>\n\n\n\n<p class=\"has-text-align-center\">\u8bba\u6587\uff1a<a href=\"https:\/\/arxiv.org\/abs\/2211.10440\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/arxiv.org\/abs\/2211.10440<\/a><\/p>\n\n\n\n<p>     \u4eba\u4eec\u53ea\u9700\u8981\u8f93\u5165\u4e00\u6bb5\u6587\u5b57\u6bd4\u5982\u300c\u4e00\u53ea\u5750\u5728\u7761\u83b2\u4e0a\u7684\u84dd\u8272\u7bad\u6bd2\u86d9\u300d\uff0cAI \u5c31\u80fd\u7ed9\u4f60\u751f\u6210\u4e2a\u7eb9\u7406\u9020\u578b\u4ff1\u5168\u7684 3D \u6a21\u578b\u51fa\u6765\u3002Magic3D \u8fd8\u53ef\u4ee5\u6267\u884c\u57fa\u4e8e\u63d0\u793a\u7684 3D \u7f51\u683c\u7f16\u8f91\uff1a\u7ed9\u5b9a\u4f4e\u5206\u8fa8\u7387 3D \u6a21\u578b\u548c\u57fa\u672c\u63d0\u793a\uff0c\u53ef\u4ee5\u66f4\u6539\u6587\u672c\u4ece\u800c\u4fee\u6539\u751f\u6210\u7684\u6a21\u578b\u5185\u5bb9\u3002\u6b64\u5916\uff0c\u4f5c\u8005\u8fd8\u5c55\u793a\u4e86\u4fdd\u6301\u753b\u98ce\uff0c\u4ee5\u53ca\u5c06 2D \u56fe\u50cf\u6837\u5f0f\u5e94\u7528\u4e8e 3D \u6a21\u578b\u7684\u80fd\u529b\u3002<\/p>\n\n\n\n<p>     \u7c7b\u4f3c\u4e8e DreamFusion \u7528\u6587\u672c\u751f\u6210 2D \u56fe\u50cf\uff0c\u518d\u5c06\u5176\u4f18\u5316\u4e3a\u4f53\u79ef NeRF\uff08\u795e\u7ecf\u8f90\u5c04\u573a\uff09\u6570\u636e\u7684\u6d41\u7a0b\uff0cMagic3D \u4f7f\u7528\u4e24\u9636\u6bb5\u751f\u6210\u6cd5\uff0c\u7528\u4f4e\u5206\u8fa8\u7387\u751f\u6210\u7684\u7c97\u7565\u6a21\u578b\u518d\u4f18\u5316\u5230\u66f4\u9ad8\u7684\u5206\u8fa8\u7387\u3002<\/p>\n\n\n\n<p>     \u82f1\u4f1f\u8fbe\u7684\u65b9\u6cd5\u9996\u5148\u4f7f\u7528\u4f4e\u5206\u8fa8\u7387\u6269\u6563\u5148\u9a8c\u83b7\u5f97\u7c97\u7cd9\u6a21\u578b\uff0c\u5e76\u4f7f\u7528\u7a00\u758f 3D \u54c8\u5e0c\u7f51\u683c\u7ed3\u6784\u8fdb\u884c\u52a0\u901f\u3002\u7528\u7c97\u7565\u8868\u793a\u4f5c\u4e3a\u521d\u59cb\uff0c\u518d\u8fdb\u4e00\u6b65\u4f18\u5316\u4e86\u5e26\u7eb9\u7406\u7684 3D \u7f51\u683c\u6a21\u578b\uff0c\u8be5\u6a21\u578b\u5177\u6709\u4e0e\u9ad8\u5206\u8fa8\u7387\u6f5c\u5728\u6269\u6563\u6a21\u578b\u4ea4\u4e92\u7684\u9ad8\u6548\u53ef\u5fae\u5206\u6e32\u67d3\u5668\u3002<\/p>\n\n\n\n<p>      Magic3D \u53ef\u4ee5\u5728 40 \u5206\u949f\u5185\u521b\u5efa\u9ad8\u8d28\u91cf\u7684 3D \u7f51\u683c\u6a21\u578b\uff0c\u6bd4 DreamFusion \u5feb 2 \u500d\uff08\u540e\u8005\u5e73\u5747\u9700\u8981 1.5 \u5c0f\u65f6\uff09\uff0c\u540c\u65f6\u8fd8\u5b9e\u73b0\u4e86\u66f4\u9ad8\u7684\u5206\u8fa8\u7387\u3002<\/p>\n\n\n\n<p>     Magic3D \u53ef\u4ee5\u5728\u8f83\u77ed\u7684\u8ba1\u7b97\u65f6\u95f4\u5185\u6839\u636e\u6587\u672c prompt \u5408\u6210\u9ad8\u5ea6\u8be6\u7ec6\u7684 3D \u6a21\u578b\u3002Magic3D \u901a\u8fc7\u6539\u8fdb DreamFusion \u4e2d\u7684\u51e0\u4e2a\u4e3b\u8981\u8bbe\u8ba1\u9009\u62e9\u6765\u4f7f\u7528\u6587\u672c prompt \u5408\u6210\u9ad8\u8d28\u91cf\u7684 3D \u5185\u5bb9\u3002<\/p>\n\n\n\n<p>    \u5177\u4f53\u6765\u8bf4\uff0cMagic3D \u662f\u4e00\u79cd\u4ece\u7c97\u5230\u7cbe\u7684\u4f18\u5316\u65b9\u6cd5\uff0c\u5176\u4e2d\u4f7f\u7528\u4e0d\u540c\u5206\u8fa8\u7387\u4e0b\u7684\u591a\u4e2a\u6269\u6563\u5148\u9a8c\u6765\u4f18\u5316 3D \u8868\u5f81\uff0c\u4ece\u800c\u751f\u6210\u89c6\u56fe\u4e00\u81f4\u7684\u51e0\u4f55\u5f62\u72b6\u4ee5\u53ca\u9ad8\u5206\u8fa8\u7387\u7ec6\u8282\u3002Magic3D \u4f7f\u7528\u76d1\u7763\u65b9\u6cd5\u5408\u6210 8 \u500d\u9ad8\u5206\u8fa8\u7387\u7684 3D \u5185\u5bb9\uff0c\u901f\u5ea6\u4e5f\u6bd4 DreamFusion \u5feb 2 \u500d\u3002<\/p>\n\n\n\n<p>Magic3D \u7684\u6574\u4e2a\u5de5\u4f5c\u6d41\u7a0b\u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5\uff1a<\/p>\n\n\n\n<ul><li>\u5728\u7b2c\u4e00\u9636\u6bb5\uff0c\u8be5\u7814\u7a76\u4f18\u5316\u4e86\u7c7b\u4f3c\u4e8e DreamFusion \u7684\u7c97\u7565\u795e\u7ecf\u573a\u8868\u5f81\uff0c\u4ee5\u5b9e\u73b0\u5177\u6709\u57fa\u4e8e\u54c8\u5e0c\u7f51\u683c\uff08hash grid\uff09\u7684\u5185\u5b58\u548c\u8ba1\u7b97\u7684\u9ad8\u6548\u573a\u666f\u8868\u5f81\u3002<\/li><li>\u5728\u7b2c\u4e8c\u9636\u6bb5\u8be5\u65b9\u6cd5\u5207\u6362\u5230\u4f18\u5316\u7f51\u683c\u8868\u5f81\u3002\u8fd9\u4e2a\u6b65\u9aa4\u5f88\u5173\u952e\uff0c\u5b83\u5141\u8bb8\u8be5\u65b9\u6cd5\u5728\u9ad8\u8fbe 512 \u00d7 512 \u7684\u5206\u8fa8\u7387\u4e0b\u5229\u7528\u6269\u6563\u5148\u9a8c\u3002\u7531\u4e8e 3D \u7f51\u683c\u9002\u7528\u4e8e\u5feb\u901f\u56fe\u5f62\u6e32\u67d3\uff0c\u53ef\u4ee5\u5b9e\u65f6\u6e32\u67d3\u9ad8\u5206\u8fa8\u7387\u56fe\u50cf\uff0c\u56e0\u6b64\u8be5\u7814\u7a76\u5229\u7528\u57fa\u4e8e\u5149\u6805\u5316\u7684\u9ad8\u6548\u5fae\u5206\u6e32\u67d3\u5668\u548c\u76f8\u673a\u7279\u5199\u6765\u6062\u590d\u51e0\u4f55\u7eb9\u7406\u4e2d\u7684\u9ad8\u9891\u7ec6\u8282\u3002<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"418\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-8-1024x418.png\" alt=\"\" class=\"wp-image-15128\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-8-1024x418.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-8-300x123.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-8-768x314.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-8.png 1221w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2>3\u3001<strong>Point-E\uff08OpenAI\uff09<\/strong><\/h2>\n\n\n\n<p><strong>Point\u00b7E\uff0c\u53ef\u4ee5\u4f9d\u636e\u6587\u672c\u63d0\u793a\u76f4\u63a5\u751f\u6210 3D \u70b9\u4e91\uff1a<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>\u9879\u76ee\u4e3b\u9875\uff1a<a href=\"https:\/\/openai.com\/research\/point-e\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/openai.com\/research\/point-e<\/a><\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>Github: <a rel=\"noreferrer noopener\" href=\"https:\/\/github.com\/openai\/point-e\" target=\"_blank\">https:\/\/github.com\/openai\/point-e<\/a><\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"914\" height=\"268\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-9.png\" alt=\"\" class=\"wp-image-15136\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-9.png 914w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-9-300x88.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-9-768x225.png 768w\" sizes=\"(max-width: 914px) 100vw, 914px\" \/><\/figure>\n\n\n\n<p><strong>\u901a\u5e38\u610f\u4e49\u4e0a\uff0c\u6587\u672c\u5230 3D \u5408\u6210\u7684\u65b9\u6cd5\u5206\u4e3a\u4e24\u7c7b\uff1a<\/strong><\/p>\n\n\n\n<p><strong>\u65b9\u6cd5 1\uff1a<\/strong>\u76f4\u63a5\u5728\u6210\u5bf9\u7684 (text, 3D) \u6570\u636e\u6216\u65e0\u6807\u7b7e\u7684 3D \u6570\u636e\u4e0a\u8bad\u7ec3\u751f\u6210\u6a21\u578b\u3002<\/p>\n\n\n\n<p>\u6b64\u7c7b\u65b9\u6cd5\u867d\u7136\u53ef\u4ee5\u5229\u7528\u73b0\u6709\u7684\u751f\u6210\u6a21\u578b\u65b9\u6cd5\uff0c\u6709\u6548\u5730\u751f\u6210\u6837\u672c\uff0c\u4f46\u7531\u4e8e\u7f3a\u4e4f\u5927\u89c4\u6a21 3D \u6570\u636e\u96c6\uff0c\u56e0\u6b64\u5f88\u96be\u6269\u5c55\u5230\u590d\u6742\u7684\u6587\u672c\u63d0\u793a\u3002<\/p>\n\n\n\n<p><strong>\u65b9\u6cd5 2\uff1a<\/strong>\u5229\u7528\u9884\u5148\u8bad\u7ec3\u597d\u7684 text-to-image \u6a21\u578b\uff0c\u4f18\u5316\u53ef\u533a\u5206\u7684 3D \u8868\u5f81\u3002<\/p>\n\n\n\n<p>\u6b64\u7c7b\u65b9\u6cd5\u901a\u5e38\u80fd\u591f\u5904\u7406\u590d\u6742\u591a\u6837\u7684\u6587\u672c\u63d0\u793a\uff0c\u4f46\u6bcf\u4e2a\u6837\u672c\u7684\u4f18\u5316\u8fc7\u7a0b\u90fd\u4ee3\u4ef7\u9ad8\u6602\u3002\u6b64\u5916\uff0c\u7531\u4e8e\u7f3a\u4e4f\u5f3a\u5927\u7684 3D prior\uff0c\u6b64\u7c7b\u65b9\u6cd5\u53ef\u80fd\u4f1a\u9677\u5165 local minima\uff08\u65e0\u6cd5\u4e0e\u6709\u610f\u4e49\u6216\u8fde\u8d2f\u7684 3D \u76ee\u6807\u4e00\u4e00\u5bf9\u5e94\uff09\u3002<\/p>\n\n\n\n<p>Point\u00b7E \u7ed3\u5408\u4e86 text-to-image \u6a21\u578b\u4ee5\u53ca image-to-3D \u6a21\u578b\uff0c<strong>\u7efc\u5408\u4ee5\u4e0a\u4e24\u79cd\u65b9\u6cd5\u7684\u4f18\u52bf\uff0c<\/strong>\u8fdb\u4e00\u6b65\u63d0\u5347\u4e86 3D \u5efa\u6a21\u7684\u6548\u7387\uff0c\u53ea\u9700\u8981\u4e00\u4e2a GPU\u3001\u4e00\u4e24\u5206\u949f\u5373\u53ef\u5b8c\u6210\u6587\u672c\u5230 3D \u70b9\u4e91\u7684\u8f6c\u6362\u3002<\/p>\n\n\n\n<p>Point\u00b7E \u4e2d\uff0ctext-to-image \u6a21\u578b\u5229\u7528\u4e86\u5927\u578b\u8bed\u6599\u5e93 \uff08text, image pair)\uff0c\u4f7f\u5176\u5bf9\u590d\u6742\u7684\u6587\u672c\u63d0\u793a\u4e5f\u80fd\u5904\u7406\u5f97\u5f53\uff1bimage-to-3D \u6a21\u578b\u5219\u662f\u5728\u4e00\u4e2a\u8f83\u5c0f\u7684\u6570\u636e\u96c6 (image, 3D pair) \u4e0a\u8bad\u7ec3\u7684\u3002<\/p>\n\n\n\n<p><strong>\u7528 Point\u00b7E \u4f9d\u636e\u6587\u672c\u63d0\u793a\u751f\u6210 3D \u70b9\u4e91\u7684\u8fc7\u7a0b\u5206\u4e3a\u4e09\u4e2a\u6b65\u9aa4\uff1a<\/strong><\/p>\n\n\n\n<p>1\u3001\u4f9d\u636e\u6587\u672c\u63d0\u793a\uff0c\u751f\u6210\u4e00\u4e2a\u5408\u6210\u89c6\u56fe (synthetic view)<\/p>\n\n\n\n<p>                  <a href=\"https:\/\/zhuanlan.zhihu.com\/p\/449284962\" target=\"_blank\" rel=\"noreferrer noopener\">GLIDE &#8211; \u57fa\u4e8e\u6269\u6563\u6a21\u578b\u7684\u6587\u672c\u56fe\u50cf\u751f\u6210\u5927\u6a21\u578b<\/a><\/p>\n\n\n\n<p>2\u3001\u4f9d\u636e\u5408\u6210\u89c6\u56fe\uff0c\u751f\u6210 coarse point cloud (1024 point)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-11.png\" alt=\"\" class=\"wp-image-15149\" width=\"544\" height=\"500\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-11.png 544w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-11-300x276.png 300w\" sizes=\"(max-width: 544px) 100vw, 544px\" \/><\/figure>\n\n\n\n<p>3\u3001\u57fa\u4e8e\u4f4e\u5206\u8fa8\u7387\u70b9\u4e91\u548c\u5408\u6210\u89c6\u56fe\uff0c\u751f\u6210 fine point cloud (4096 Point)<\/p>\n\n\n\n<p>\u7531\u4e8e\u6570\u636e\u683c\u5f0f\u548c\u6570\u636e\u8d28\u91cf\u5bf9\u8bad\u7ec3\u7ed3\u679c\u5f71\u54cd\u5de8\u5927\uff0c<strong>Point\u00b7E \u501f\u52a9 Blender\uff0c\u5c06\u6240\u6709\u8bad\u7ec3\u6570\u636e\u90fd\u8f6c\u6362\u4e3a\u4e86\u901a\u7528\u683c\u5f0f\u3002<\/strong><\/p>\n\n\n\n<p><strong>Blender \u652f\u6301\u591a\u79cd 3D \u683c\u5f0f\uff0c\u5e76\u914d\u6709\u4f18\u5316\u7684\u6e32\u67d3 engine\u3002<\/strong>Blender \u811a\u672c\u5c06\u6a21\u578b\u7edf\u4e00\u4e3a\u4e00\u4e2a bounding cube\uff0c\u914d\u7f6e\u4e00\u4e2a\u6807\u51c6\u7684 lighting \u8bbe\u7f6e\uff0c\u6700\u540e\u4f7f\u7528 Blender \u5185\u7f6e\u7684\u5b9e\u65f6\u6e32\u67d3 engine \u5bfc\u51fa RGBAD \u56fe\u50cf\u3002<\/p>\n\n\n\n<h2>4\u3001Zero-1-to-3: Zero-shot One Image to 3D Object<\/h2>\n\n\n\n<p>\u9879\u76ee\u94fe\u63a5\uff1a<\/p>\n\n\n\n<p><a href=\"https:\/\/zero123.cs.columbia.edu\/\">https:\/\/zero123.cs.columbia.edu\/<\/a><\/p>\n\n\n\n<p>\u6e90\u7801\uff1a<\/p>\n\n\n\n<p><a href=\"https:\/\/github.com\/cvlab-columb\">https:\/\/github.com\/cvlab-columb<\/a><\/p>\n\n\n\n<h2>Method<\/h2>\n\n\n\n<p>We learn a view-conditioned diffusion model that can subsequently control the viewpoint of an image containing a novel object (left). Such diffusion model can also be used to train a NeRF for 3D reconstruction (right). Please refer to our paper for more details or checkout our code for implementation.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"374\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/04\/image-44-1024x374.png\" alt=\"\" class=\"wp-image-15076\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/04\/image-44-1024x374.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/04\/image-44-300x110.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/04\/image-44-768x280.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/04\/image-44.png 1509w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2>Text to Image to Novel Views<\/h2>\n\n\n\n<p>Here are results of applying Zero-1-to-3 to images generated by Dall-E-2.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"345\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/04\/image-45-1024x345.png\" alt=\"\" class=\"wp-image-15078\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/04\/image-45-1024x345.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/04\/image-45-300x101.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/04\/image-45-768x259.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/04\/image-45.png 1426w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2>5\u3001SceneDreamer\uff1a\u4ece2D\u56fe\u50cf\u4e2d\u5b66\u4e60\u751f\u6210\u65e0\u96503D\u573a\u666f<\/h2>\n\n\n\n<p>\u6765\u81ea\u5357\u6d0b\u7406\u5de5\u5927\u5b66 S-Lab \u7684\u7814\u7a76\u8005\u63d0\u51fa\u4e86\u4e00\u4e2a\u65b0\u7684\u6846\u67b6 SceneDreamer\uff0c\u4e13\u6ce8\u4e8e\u4ece\u6d77\u91cf\u65e0\u6807\u6ce8\u81ea\u7136\u56fe\u7247\u4e2d\u5b66\u4e60\u65e0\u754c\u4e09\u7ef4\u573a\u666f\u7684\u751f\u6210\u6a21\u578b\u3002<\/p>\n\n\n\n<ul><li>\u9879\u76ee\u4e3b\u9875\uff1ahttps:\/\/scene-dreamer.github.io\/<\/li><li>\u4ee3\u7801\uff1ahttps:\/\/github.com\/FrozenBurning\/SceneDreamer<\/li><li>\u8bba\u6587\uff1ahttps:\/\/arxiv.org\/abs\/2302.01330<\/li><li>\u5728\u7ebf Demo\uff1ahttps:\/\/huggingface.co\/spaces\/FrozenBurning\/SceneDreamer<\/li><\/ul>\n\n\n\n<p> \u4e3a\u6ee1\u8db3\u5143\u5b87\u5b99\u4e2d\u5bf9 3D \u521b\u610f\u5de5\u5177\u4e0d\u65ad\u589e\u957f\u7684\u9700\u6c42\uff0c\u4e09\u7ef4\u573a\u666f\u751f\u6210\u6700\u8fd1\u53d7\u5230\u4e86\u76f8\u5f53\u591a\u7684\u5173\u6ce8\u30023D \u5185\u5bb9\u521b\u4f5c\u7684\u6838\u5fc3\u662f\u9006\u5411\u56fe\u5f62\u5b66\uff0c\u65e8\u5728\u4ece 2D \u89c2\u6d4b\u4e2d\u6062\u590d 3D \u8868\u5f81\u3002\u8003\u8651\u5230\u521b\u5efa 3D \u8d44\u4ea7\u6240\u9700\u7684\u6210\u672c\u548c\u52b3\u52a8\u529b\uff0c3D \u5185\u5bb9\u521b\u4f5c\u7684\u6700\u7ec8\u76ee\u6807\u5c06\u662f\u4ece\u6d77\u91cf\u7684\u4e92\u8054\u7f51\u4e8c\u7ef4\u56fe\u50cf\u4e2d\u5b66\u4e60\u4e09\u7ef4\u751f\u6210\u6a21\u578b\u3002\u6700\u8fd1\u5173\u4e8e\u4e09\u7ef4\u611f\u77e5\u751f\u6210\u6a21\u578b\u7684\u5de5\u4f5c\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\uff0c\u591a\u6570\u5de5\u4f5c\u5229\u7528 2D \u56fe\u50cf\u6570\u636e\u751f\u6210\u4ee5\u7269\u4f53\u4e3a\u4e2d\u5fc3\u7684\u5185\u5bb9\uff08\u4f8b\u5982\u4eba\u8138\u3001\u4eba\u4f53\u6216\u7269\u4f53\uff09\u3002\u7136\u800c\uff0c\u8fd9\u7c7b\u751f\u6210\u4efb\u52a1\u7684\u89c2\u6d4b\u7a7a\u95f4\u5904\u4e8e\u6709\u9650\u57df\u4e2d\uff0c\u751f\u6210\u7684\u76ee\u6807\u5360\u636e\u4e86\u4e09\u7ef4\u7a7a\u95f4\u7684\u6709\u9650\u533a\u57df\u3002\u8fd9\u5c31\u4ea7\u751f\u4e86\u4e00\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u662f\u5426\u80fd\u4ece\u6d77\u91cf\u4e92\u8054\u7f51 2D \u56fe\u50cf\u4e2d\u5b66\u4e60\u5230\u65e0\u754c\u573a\u666f\u7684 3D \u751f\u6210\u6a21\u578b\uff1f\u6bd4\u5982\u80fd\u591f\u8986\u76d6\u4efb\u610f\u5927\u533a\u57df\uff0c\u4e14\u65e0\u9650\u62d3\u5c55\u7684\u751f\u52a8\u81ea\u7136\u666f\u89c2 <\/p>\n\n\n\n<p>\u60f3\u8981\u8fbe\u6210\u8fd9\u6837\u7684\u76ee\u6807\uff0c\u6211\u4eec\u9762\u4e34\u7740\u5982\u4e0b\u4e09\u4e2a\u6311\u6218\uff1a<\/p>\n\n\n\n<p>1\uff09\u65e0\u754c\u573a\u666f\u7f3a\u4e4f\u9ad8\u6548\u4e09\u7ef4\u8868\u5f81\uff1a\u65e0\u8fb9\u754c\u573a\u666f\u5e38\u5e38\u5360\u636e\u4e86\u4e00\u4e2a\u4efb\u610f\u5927\u7684\u6b27\u6c0f\u7a7a\u95f4\uff0c\u8fd9\u51f8\u663e\u4e86\u9ad8\u6548\u4e14\u5177\u5907\u8868\u73b0\u529b\u7684\u5e95\u5c42\u4e09\u7ef4\u8868\u5f81\u7684\u91cd\u8981\u6027\u3002<\/p>\n\n\n\n<p>2\uff09\u7f3a\u4e4f\u5185\u5bb9\u5bf9\u9f50\uff1a\u5df2\u6709\u4e09\u7ef4\u751f\u6210\u5de5\u4f5c\u4f7f\u7528\u5177\u5907\u5bf9\u9f50\u6027\u8d28\u7684\u6570\u636e\u96c6\uff08\u5982\u4eba\u8138\u3001\u4eba\u4f53\u3001\u5e38\u7528\u7269\u4f53\u7b49\uff09\uff0c\u8fd9\u4e9b\u6709\u754c\u573a\u666f\u4e2d\u7684\u76ee\u6807\u7269\u4f53\u901a\u5e38\u5177\u5907\u7c7b\u4f3c\u7684\u8bed\u4e49\u3001\u76f8\u8fd1\u7684\u5c3a\u5ea6\u4f4d\u7f6e\u548c\u65b9\u5411\u3002\u7136\u800c\uff0c\u5728\u6d77\u91cf\u7684\u65e0\u6807\u6ce8\u4e8c\u7ef4\u56fe\u50cf\u4e2d\uff0c\u4e0d\u540c\u7269\u4f53\u6216\u573a\u666f\u5e38\u5e38\u5177\u5907\u8fe5\u5f02\u7684\u8bed\u4e49\uff0c\u4e14\u62e5\u6709\u591a\u53d8\u7684\u5c3a\u5ea6\u3001\u4f4d\u7f6e\u548c\u65b9\u5411\u3002\u8fd9\u6837\u7f3a\u4e4f\u5bf9\u9f50\u7684\u6027\u8d28\u4f1a\u5e26\u6765\u751f\u6210\u6a21\u578b\u8bad\u7ec3\u7684\u4e0d\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n<p>3\uff09\u7f3a\u4e4f\u76f8\u673a\u4f4d\u59ff\u5148\u9a8c\uff1a\u4e09\u7ef4\u751f\u6210\u6a21\u578b\u4f9d\u8d56\u4e8e\u51c6\u786e\u76f8\u673a\u4f4d\u59ff\u6216\u76f8\u673a\u4f4d\u59ff\u5206\u5e03\u7684\u5148\u9a8c\u6765\u5b9e\u73b0\u56fe\u50cf\u5230\u4e09\u7ef4\u8868\u5f81\u7684\u9006\u5411\u6e32\u67d3\u8fc7\u7a0b\u3002\u4f46\u4e92\u8054\u7f51\u81ea\u7136\u56fe\u50cf\u6765\u6e90\u4e8e\u4e0d\u540c\u7684\u573a\u666f\u548c\u50cf\u6e90\uff0c\u8ba9\u6211\u4eec\u65e0\u6cd5\u83b7\u53d6\u5176\u76f8\u673a\u4f4d\u59ff\u51c6\u786e\u4fe1\u606f\u6216\u5148\u9a8c\u3002<\/p>\n\n\n\n<p>\u4e3a\u6b64\u6211\u4eec\u63d0\u51fa\u4e86\u4e00\u4e2a\u539f\u5219\u6027\u7684\u5bf9\u6297\u5b66\u4e60\u6846\u67b6 SceneDreamer\uff0c\u4ece\u6d77\u91cf\u7684\u65e0\u6807\u6ce8\u81ea\u7136\u56fe\u50cf\u4e2d\u5b66\u4e60\u751f\u6210\u65e0\u754c\u4e09\u7ef4\u573a\u666f\u3002\u8be5\u6846\u67b6\u5305\u542b\u4e09\u4e2a\u4e3b\u8981\u6a21\u5757\uff1a1\uff09\u9ad8\u6548\u4e14\u9ad8\u8868\u73b0\u529b\u7684\u9e1f\u77b0\uff08BEV\uff09\u4e09\u7ef4\u573a\u666f\u8868\u5f81\uff1b2\uff09\u5b66\u4e60\u573a\u666f\u901a\u7528\u8868\u5f81\u7684\u751f\u6210\u5f0f\u795e\u7ecf\u54c8\u5e0c\u7f51\u683c\uff1b3\uff09\u7531\u98ce\u683c\u9a71\u52a8\u7684\u4f53\u79ef\u6e32\u67d3\u5668\uff0c\u5e76\u7ecf\u8fc7\u5bf9\u6297\u5b66\u4e60\u7684\u65b9\u5f0f\u76f4\u63a5\u4ece\u4e8c\u7ef4\u56fe\u50cf\u4e2d\u8fdb\u884c\u8bad\u7ec3\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"974\" height=\"551\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-10.png\" alt=\"\" class=\"wp-image-15144\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-10.png 974w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-10-300x170.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-10-768x434.png 768w\" sizes=\"(max-width: 974px) 100vw, 974px\" \/><\/figure>\n\n\n\n<h2>6\u3001<strong>&nbsp;Shap\u30fbE\uff0c\u5408\u6210 3D \u6761\u4ef6\u751f\u6210\u5f0f\u6a21\u578b<\/strong><\/h2>\n\n\n\n<ul class=\"has-yellow-background-color has-background\"><li>\u8bba<strong>\u6587\u5730\u5740\uff1a<a href=\"https:\/\/arxiv.org\/abs\/2305.02463\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/arxiv.org\/abs\/2305.02463<\/a><\/strong><\/li><li><strong>\u9879\u76ee\u5730\u5740\uff1a<a href=\"https:\/\/github.com\/openai\/shap-e\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/github.com\/openai\/shap-e<\/a><\/strong><\/li><\/ul>\n\n\n\n<p>\u6211\u4eec\u5148\u6765\u770b\u4e00\u4e0b\u751f\u6210\u6548\u679c\u3002\u4e0e\u6839\u636e\u6587\u5b57\u751f\u6210\u56fe\u50cf\u7c7b\u4f3c\uff0cShap\u30fbE \u751f\u6210\u7684 3D \u7269\u4f53\u6a21\u578b\u4e3b\u6253\u4e00\u4e2a\u300c\u5929\u9a6c\u884c\u7a7a\u300d\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\/05\/image-12.png\" alt=\"\" class=\"wp-image-15160\" width=\"472\" height=\"263\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-12.png 712w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-12-300x168.png 300w\" sizes=\"(max-width: 472px) 100vw, 472px\" \/><\/figure><\/div>\n\n\n\n<p>\u672c\u6587\u63d0\u51fa\u7684 Shap\u30fbE \u662f\u4e00\u79cd\u5728 3D \u9690\u5f0f\u51fd\u6570\u7a7a\u95f4\u4e0a\u7684\u6f5c\u6269\u6563\u6a21\u578b\uff0c\u53ef\u4ee5\u6e32\u67d3\u6210 NeRF \u548c\u7eb9\u7406\u7f51\u683c\u3002\u5728<strong>\u7ed9\u5b9a\u76f8\u540c\u7684\u6570\u636e\u96c6\u3001\u6a21\u578b\u67b6\u6784\u548c\u8bad\u7ec3\u8ba1\u7b97\u7684\u60c5\u51b5\u4e0b\uff0cShap\u30fbE \u66f4\u4f18\u4e8e\u540c\u7c7b\u663e\u5f0f\u751f\u6210\u6a21\u578b<\/strong>\u3002\u7814\u7a76\u8005\u53d1\u73b0\u7eaf\u6587\u672c\u6761\u4ef6\u6a21\u578b\u53ef\u4ee5\u751f\u6210\u591a\u6837\u5316\u3001\u6709\u8da3\u7684\u7269\u4f53\uff0c\u66f4\u5f70\u663e\u4e86\u751f\u6210\u9690\u5f0f\u8868\u5f81\u7684\u6f5c\u529b\u3002<\/p>\n\n\n\n<p>\u4e0d\u540c\u4e8e 3D \u751f\u6210\u6a21\u578b\u4e0a\u4ea7\u751f\u5355\u4e00\u8f93\u51fa\u8868\u793a\u7684\u5de5\u4f5c\uff0cShap-E \u80fd\u591f\u76f4\u63a5\u751f\u6210\u9690\u5f0f\u51fd\u6570\u7684\u53c2\u6570\u3002\u8bad\u7ec3 Shap-E \u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5\uff1a\u9996\u5148\u8bad\u7ec3\u7f16\u7801\u5668\uff0c\u8be5\u7f16\u7801\u5668\u5c06 3D \u8d44\u4ea7\u786e\u5b9a\u6027\u5730\u6620\u5c04\u5230\u9690\u5f0f\u51fd\u6570\u7684\u53c2\u6570\u4e2d\uff1b\u5176\u6b21\u5728\u7f16\u7801\u5668\u7684\u8f93\u51fa\u4e0a\u8bad\u7ec3\u6761\u4ef6\u6269\u6563\u6a21\u578b\u3002\u5f53\u5728\u914d\u5bf9 3D \u548c\u6587\u672c\u6570\u636e\u7684\u5927\u578b\u6570\u636e\u96c6\u4e0a\u8fdb\u884c\u8bad\u7ec3\u65f6\uff0c \u8be5\u6a21\u578b\u80fd\u591f\u5728\u51e0\u79d2\u949f\u5185\u751f\u6210\u590d\u6742\u800c\u591a\u6837\u7684 3D \u8d44\u4ea7\u3002<strong>\u4e0e\u70b9\u4e91\u663e\u5f0f\u751f\u6210\u6a21\u578b Point\u30fbE \u76f8\u6bd4\uff0cShap-E \u5efa\u6a21\u4e86\u9ad8\u7ef4\u3001\u591a\u8868\u793a\u7684\u8f93\u51fa\u7a7a\u95f4\uff0c\u6536\u655b\u66f4\u5feb\uff0c\u5e76\u4e14\u8fbe\u5230\u4e86\u76f8\u5f53\u6216\u66f4\u597d\u7684\u6837\u672c\u8d28\u91cf<\/strong>\u3002<\/p>\n\n\n\n<p>\u7814\u7a76\u8005\u9996\u5148\u8bad\u7ec3\u7f16\u7801\u5668\u4ea7\u751f\u9690\u5f0f\u8868\u793a\uff0c\u7136\u540e\u5728\u7f16\u7801\u5668\u4ea7\u751f\u7684\u6f5c\u5728\u8868\u793a\u4e0a\u8bad\u7ec3\u6269\u6563\u6a21\u578b\uff0c\u4e3b\u8981\u5206\u4e3a\u4ee5\u4e0b\u4e24\u6b65\u5b8c\u6210:<br>1. \u8bad\u7ec3\u4e00\u4e2a\u7f16\u7801\u5668\uff0c\u5728\u7ed9\u5b9a\u5df2\u77e5 3D \u8d44\u4ea7\u7684\u5bc6\u96c6\u663e\u5f0f\u8868\u793a\u7684\u60c5\u51b5\u4e0b\uff0c\u4ea7\u751f\u9690\u5f0f\u51fd\u6570\u7684\u53c2\u6570\u3002\u7f16\u7801\u5668\u4ea7\u751f 3D \u8d44\u4ea7\u7684\u6f5c\u5728\u8868\u793a\u540e\u7ebf\u6027\u6295\u5f71\uff0c\u4ee5\u83b7\u5f97\u591a\u5c42\u611f\u77e5\u5668\uff08MLP\uff09\u7684\u6743\u91cd\uff1b<\/p>\n\n\n\n<p>2. \u5c06\u7f16\u7801\u5668\u5e94\u7528\u4e8e\u6570\u636e\u96c6\uff0c\u7136\u540e\u5728\u6f5c\u5728\u6570\u636e\u96c6\u4e0a\u8bad\u7ec3\u6269\u6563\u5148\u9a8c\u3002\u8be5\u6a21\u578b\u4ee5\u56fe\u50cf\u6216\u6587\u672c\u63cf\u8ff0\u4e3a\u6761\u4ef6\u3002<br>\u7814\u7a76\u8005\u5728\u4e00\u4e2a\u5927\u578b\u7684 3D \u8d44\u4ea7\u6570\u636e\u96c6\u4e0a\u4f7f\u7528\u76f8\u5e94\u7684\u6e32\u67d3\u3001\u70b9\u4e91\u548c\u6587\u672c\u6807\u9898\u8bad\u7ec3\u6240\u6709\u6a21\u578b\u3002<\/p>\n\n\n\n<p><strong>3D \u7f16\u7801\u5668<\/strong>:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"735\" height=\"687\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-13.png\" alt=\"\" class=\"wp-image-15167\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-13.png 735w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-13-300x280.png 300w\" sizes=\"(max-width: 735px) 100vw, 735px\" \/><\/figure>\n\n\n\n<p><strong>\u6f5c\u5728\u6269\u6563<\/strong><br>\u751f\u6210\u6a21\u578b\u91c7\u7528\u57fa\u4e8e transformer \u7684 Point\u30fbE \u6269\u6563\u67b6\u6784\uff0c\u4f46\u662f\u4f7f\u7528\u6f5c\u5728\u5411\u91cf\u5e8f\u5217\u53d6\u4ee3\u70b9\u4e91\u3002\u6f5c\u5728\u51fd\u6570\u5f62\u72b6\u5e8f\u5217\u4e3a 1024\u00d71024\uff0c\u5e76\u4f5c\u4e3a 1024 \u4e2a token \u5e8f\u5217\u8f93\u5165 transformer\uff0c\u5176\u4e2d\u6bcf\u4e2a token \u5bf9\u5e94\u4e8e MLP \u6743\u91cd\u77e9\u9635\u7684\u4e0d\u540c\u884c\u3002\u56e0\u6b64\uff0c\u8be5\u6a21\u578b\u5728\u8ba1\u7b97\u4e0a\u5927\u81f4\u76f8\u5f53\u4e8e\u57fa\u7840 Point\u30fbE \u6a21\u578b\uff08\u5373\u5177\u6709\u76f8\u540c\u7684\u4e0a\u4e0b\u6587\u957f\u5ea6\u548c\u5bbd\u5ea6\uff09\u3002\u5728\u6b64\u57fa\u7840\u4e0a\u589e\u52a0\u4e86\u8f93\u5165\u548c\u8f93\u51fa\u901a\u9053\uff0c\u80fd\u5728\u66f4\u9ad8\u7ef4\u5ea6\u7684\u7a7a\u95f4\u4e2d\u751f\u6210\u6837\u672c\u3002<\/p>\n\n\n\n<h2>7\u3001Make-it-3D\uff1adiffusion+NeRF\u4ece\u5355\u5f20\u56fe\u50cf\u751f\u6210\u9ad8\u4fdd\u771f\u7684\u4e09\u7ef4\u7269\u4f53<\/h2>\n\n\n\n<p class=\"has-text-align-center has-yellow-background-color has-background\"><strong>Title: Make-It-3D: High-Fidelity 3D Creation from A Single Image with Diffusion Prior<br><\/strong>Paper: <a href=\"https:\/\/arxiv.org\/pdf\/2303.14184.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/arxiv.org\/pdf\/2303.14184.pdf<\/a><br>Code: <a href=\"https:\/\/make-it-3d.github.io\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/make-it-3d.github.io\/<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"848\" height=\"304\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-14.png\" alt=\"\" class=\"wp-image-15175\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-14.png 848w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-14-300x108.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-14-768x275.png 768w\" sizes=\"(max-width: 848px) 100vw, 848px\" \/><\/figure>\n\n\n\n<p>\u4eba\u7c7b\u5177\u6709\u4e00\u79cd\u4e0e\u751f\u4ff1\u6765\u7684\u80fd\u529b\uff0c\u53ef\u4ee5<strong>\u8f7b\u677e\u5730\u60f3\u8c613D\u51e0\u4f55\u548c\u865a\u6784\u51fa\u4ece\u4e0d\u540c\u89d2\u5ea6\u770b\u7269\u4f53\u7684\u5916\u89c2\uff0c\u8fd9\u57fa\u4e8e\u4ed6\u4eec\u5bf9\u4e16\u754c\u7684\u5148\u9a8c\u77e5\u8bc6<\/strong>\u3002<\/p>\n\n\n\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u7814\u7a76\u8005\u7684\u76ee\u6807\u662f\u5b9e\u73b0\u7c7b\u4f3c\u7684\u76ee\u6807\uff1a<strong>\u4ece\u4e00\u4e2a\u771f\u5b9e\u6216\u4eba\u5de5\u751f\u6210\u7684\u5355\u5f20\u56fe\u50cf\u4e2d\u521b\u5efa\u9ad8\u4fdd\u771f\u5ea6\u76843D\u5185\u5bb9<\/strong>\u3002\u8fd9\u5c06\u4e3a\u827a\u672f\u8868\u8fbe\u548c\u521b\u610f\u5f00\u8f9f\u65b0\u7684\u9014\u5f84\uff0c\u4f8b\u5982\u4e3a\u50cfStable Diffusion\u8fd9\u6837\u7684\u524d\u6cbf2D\u751f\u6210\u6a21\u578b\u521b\u5efa\u7684\u5e7b\u60f3\u56fe\u50cf\u5e26\u67653D\u6548\u679c\u3002\u901a\u8fc7\u63d0\u4f9b\u4e00\u79cd\u66f4\u6613\u4e8e\u8bbf\u95ee\u548c\u81ea\u52a8\u5316\u7684\u521b\u5efa\u89c6\u89c9\u4e0a\u60ca\u4eba\u76843D\u5185\u5bb9\u7684\u65b9\u6cd5\uff0c\u7814\u7a76\u8005\u5e0c\u671b\u5438\u5f15\u66f4\u5e7f\u6cdb\u7684\u53d7\u4f17\u52a0\u5165\u5230\u8f7b\u677e\u76843D\u5efa\u6a21\u4e16\u754c\u4e2d\u6765\u3002<\/p>\n\n\n\n<p>\u672c\u6587\u63a2\u8ba8\u4e86<strong>\u4ec5\u4f7f\u7528\u5355\u5f20\u56fe\u50cf\u521b\u5efa\u9ad8\u4fdd\u771f\u5ea63D\u5185\u5bb9<\/strong>\u7684\u95ee\u9898\u3002\u8fd9\u672c\u8d28\u4e0a\u662f\u4e00\u9879\u5177\u6709\u6311\u6218\u6027\u7684\u4efb\u52a1\uff0c\u9700\u8981\u4f30\u8ba1\u6f5c\u5728\u76843D\u51e0\u4f55\u7ed3\u6784\uff0c\u5e76\u540c\u65f6\u4ea7\u751f\u672a\u89c1\u8fc7\u7684\u7eb9\u7406\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u8bba\u6587\u5229\u7528\u8bad\u7ec3\u597d\u76842D\u6269\u6563\u6a21\u578b\u7684\u5148\u9a8c\u77e5\u8bc6\u4f5c\u4e3a3D\u751f\u6210\u7684\u76d1\u7763\u3002\u8bba\u6587\u7684\u65b9\u6cd5\u540d\u4e3a\uff1a<strong>Make-It-3D<\/strong>\uff0c\u91c7\u7528\u4e24\u9636\u6bb5\u4f18\u5316pipeline\uff1a\u7b2c\u4e00\u9636\u6bb5\u901a\u8fc7\u5728\u524d\u666f\u89c6\u56fe\u4e2d\u7ed3\u5408\u53c2\u8003\u56fe\u50cf\u7684\u7ea6\u675f\u548c\u65b0\u89c6\u56fe\u4e2d\u7684\u6269\u6563\u5148\u9a8c\u6765\u4f18\u5316\u795e\u7ecf\u8f90\u5c04\u573a\uff1b\u7b2c\u4e8c\u9636\u6bb5\u5c06\u7c97\u7565\u6a21\u578b\u8f6c\u5316\u4e3a\u7eb9\u7406\u70b9\u4e91\uff0c\u5e76\u5229\u7528\u53c2\u8003\u56fe\u50cf\u7684\u9ad8\u8d28\u91cf\u7eb9\u7406\uff0c\u7ed3\u5408\u6269\u6563\u5148\u9a8c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u903c\u771f\u5ea6\u3002\u5927\u91cf\u5b9e\u9a8c\u8bc1\u660e\uff0c\u8bba\u6587\u7684\u65b9\u6cd5\u5728\u7ed3\u679c\u4e0a\u663e\u8457\u4f18\u4e8e\u5148\u524d\u7684\u65b9\u6cd5\uff0c\u5b9e\u73b0\u4e86\u9884\u671f\u7684\u91cd\u5efa\u6548\u679c\u548c\u4ee4\u4eba\u5370\u8c61\u6df1\u523b\u7684\u89c6\u89c9\u8d28\u91cf\u3002\u8bba\u6587\u7684\u65b9\u6cd5\u662f<strong>\u7b2c\u4e00\u4e2a\u5c1d\u8bd5\u4ece\u5355\u5f20\u56fe\u50cf\u4e3a\u4e00\u822c\u5bf9\u8c61\u521b\u5efa\u9ad8\u8d28\u91cf3D\u5185\u5bb9\u7684\u65b9\u6cd5<\/strong>\uff0c\u53ef\u7528\u4e8etext-to-3D\u7684\u521b\u5efa\u548c\u7eb9\u7406\u7f16\u8f91\u7b49\u5404\u79cd\u5e94\u7528\u3002<\/p>\n\n\n\n<p>\u8bba\u6587\u7684<strong>\u4e3b\u8981\u8d21\u732e<\/strong>\u603b\u7ed3\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol><li>\u8bba\u6587\u63d0\u51fa\u4e86<strong>Make-It-3D<\/strong>\u6846\u67b6\uff0c\u4f7f\u75282D\u6269\u6563\u6a21\u578b\u4f5c\u4e3a3D-aware\u5148\u9a8c\uff0c\u4ece\u5355\u4e2a\u56fe\u50cf\u4e2d\u521b\u5efa\u9ad8\u4fdd\u771f\u5ea6\u76843D\u7269\u4f53\u3002\u8be5\u6846\u67b6\u4e0d\u9700\u8981\u591a\u89c6\u56fe\u56fe\u50cf\u8fdb\u884c\u8bad\u7ec3\uff0c\u5e76\u53ef\u5e94\u7528\u4e8e\u4efb\u4f55\u8f93\u5165\u56fe\u50cf\uff0c\u65e0\u8bba\u662f\u771f\u5b9e\u7684\u8fd8\u662f\u751f\u6210\u7684\u3002<\/li><li>\u901a\u8fc7\u4e24\u4e2a\u9636\u6bb5\u7684\u521b\u5efa\u65b9\u6848\uff0cMake-It-3D\u662f<strong>\u9996\u4e2a\u5b9e\u73b0\u666e\u9002\u5bf9\u8c61\u9ad8\u4fdd\u771f3D\u521b\u5efa\u7684\u5de5\u4f5c<\/strong>\u3002\u751f\u6210\u76843D\u6a21\u578b\u5c55\u73b0\u51fa\u7cbe\u7ec6\u7684\u51e0\u4f55\u7ed3\u6784\u548c\u903c\u771f\u7684\u7eb9\u7406\uff0c\u4e0e\u53c2\u8003\u56fe\u50cf\u76f8\u7b26\u3002<\/li><li>\u9664\u4e86\u56fe\u50cf\u52303D\u521b\u5efa\u4e4b\u5916\uff0c\u8bba\u6587\u7684\u65b9\u6cd5\u8fd8\u80fd\u5b9e\u73b0\u9ad8\u8d28\u91cf<strong>text-to-3D\u521b\u5efa\u548c\u7eb9\u7406\u7f16\u8f91<\/strong>\u7b49\u591a\u79cd\u5e94\u7528\u3002<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"844\" height=\"567\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-15.png\" alt=\"\" class=\"wp-image-15178\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-15.png 844w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-15-300x202.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-15-768x516.png 768w\" sizes=\"(max-width: 844px) 100vw, 844px\" \/><\/figure>\n\n\n\n<p>\u8bba\u6587\u5229\u7528\u4e86\u6587\u672c-\u56fe\u50cf\u751f\u6210\u6a21\u578b\u548c\u6587\u672c-\u56fe\u50cf\u5bf9\u6bd4\u6a21\u578b\u7684\u5148\u9a8c\u77e5\u8bc6\uff0c\u901a\u8fc7<strong>\u4e24\u9636\u6bb5<\/strong>(Coarse Stage\u548cRefine Stage)\u7684\u5b66\u4e60\u6765\u8fd8\u539f\u9ad8\u4fdd\u771f\u5ea6\u7684\u7eb9\u7406\u548c\u51e0\u4f55\u4fe1\u606f\uff0c\u6240\u63d0\u51fa\u7684\u4e24\u9636\u6bb5\u4e09\u7ef4\u5b66\u4e60\u6846\u67b6\u5982\u56fe2\u6240\u793a\u3002<\/p>\n\n\n\n<h2>8\u3001ProlificDreamer\uff1a\u76f4\u63a5\u6587\u672c\u751f\u6210\u9ad8\u8d28\u91cf3D\u5185\u5bb9<\/h2>\n\n\n\n<p>\u8bba\u6587\uff1a\u300aProlificDreamer: High-Fidelity and Diverse Text-to-3D Generation with Variational Score Distillation\u300b<\/p>\n\n\n\n<ul><li>\u8bba\u6587\u94fe\u63a5\uff1a<a href=\"https:\/\/arxiv.org\/abs\/2305.16213\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/arxiv.org\/abs\/2305.16213<\/a><\/li><li>\u9879\u76ee\u4e3b\u9875\uff1a<a href=\"https:\/\/ml.cs.tsinghua.edu.cn\/prolificdreamer\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/ml.cs.tsinghua.edu.cn\/prolificdreamer\/<\/a><\/li><\/ul>\n\n\n\n<p>\u6e05\u534e\u5927\u5b66 TSAIL \u56e2\u961f\u6700\u65b0\u63d0\u51fa\u7684\u6587\u751f 3D \u65b0\u7b97\u6cd5 ProlificDreamer\uff0c\u5728\u65e0\u9700\u4efb\u4f55 3D \u6570\u636e\u7684\u524d\u63d0\u4e0b\u80fd\u591f\u751f\u6210\u8d85\u9ad8\u8d28\u91cf\u7684 3D \u5185\u5bb9\u3002ProlificDreamer \u7b97\u6cd5\u4e3a\u6587\u751f 3D \u9886\u57df\u5e26\u6765\u91cd\u5927\u8fdb\u5c55\u3002\u5229\u7528 ProlificDreamer\uff0c\u8f93\u5165\u6587\u672c \u201c\u4e00\u4e2a\u83e0\u841d\u201d\uff0c\u5c31\u80fd\u751f\u6210\u975e\u5e38\u903c\u771f\u4e14\u9ad8\u6e05\u7684 3D \u83e0\u841d\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"811\" height=\"415\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-18.png\" alt=\"\" class=\"wp-image-15207\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-18.png 811w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-18-300x154.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-18-768x393.png 768w\" sizes=\"(max-width: 811px) 100vw, 811px\" \/><figcaption>\u5c06 Imagen \u751f\u6210\u7684\u7167\u7247\uff08\u4e0b\u56fe\u9759\u6001\u56fe\uff09\u548c ProlificDreamer\uff08\u57fa\u4e8e Stable-Diffusion\uff09\u751f\u6210\u7684 3D\uff08\u4e0b\u56fe\u52a8\u6001\u56fe\uff09\u8fdb\u884c\u5bf9\u6bd4\u3002\u6709\u7f51\u53cb\u611f\u6168\uff1a\u77ed\u77ed\u4e00\u5e74\u65f6\u95f4\uff0c\u9ad8\u8d28\u91cf\u7684\u751f\u6210\u5df2\u7ecf\u80fd\u591f\u4ece 2D \u56fe\u50cf\u9886\u57df\u6269\u5c55\u5230 3D \u9886\u57df\u4e86<\/figcaption><\/figure>\n\n\n\n<p>\u5728\u6570\u5b57\u521b\u4f5c\u548c\u865a\u62df\u73b0\u5b9e\u7b49\u9886\u57df\uff0c\u4ece\u6587\u672c\u5230\u4e09\u7ef4\u6a21\u578b\uff08Text-to-3D\uff09\u7684\u6280\u672f\u5177\u6709\u91cd\u8981\u7684\u4ef7\u503c\u548c\u5e7f\u6cdb\u7684\u5e94\u7528\u6f5c\u529b\u3002\u8fd9\u79cd\u6280\u672f\u53ef\u4ee5\u4ece\u7b80\u5355\u7684\u6587\u672c\u63cf\u8ff0\u4e2d\u751f\u6210\u5177\u4f53\u7684 3D \u6a21\u578b\uff0c\u4e3a\u8bbe\u8ba1\u5e08\u3001\u6e38\u620f\u5f00\u53d1\u8005\u548c\u6570\u5b57\u827a\u672f\u5bb6\u63d0\u4f9b\u5f3a\u5927\u7684\u5de5\u5177\u3002\u7136\u800c\uff0c\u4e3a\u4e86\u6839\u636e\u6587\u672c\u751f\u6210\u51c6\u786e\u7684 3D \u6a21\u578b\uff0c\u4f20\u7edf\u65b9\u6cd5\u9700\u8981\u5927\u91cf\u7684\u6807\u8bb0 3D \u6a21\u578b\u6570\u636e\u96c6\u3002\u8fd9\u4e9b\u6570\u636e\u96c6\u9700\u8981\u5305\u542b\u591a\u79cd\u4e0d\u540c\u7c7b\u578b\u548c\u98ce\u683c\u7684 3D \u6a21\u578b\uff0c\u5e76\u4e14\u6bcf\u4e2a\u6a21\u578b\u90fd\u9700\u8981\u4e0e\u76f8\u5e94\u7684\u6587\u672c\u63cf\u8ff0\u76f8\u5173\u8054\u3002\u521b\u5efa\u8fd9\u6837\u7684\u6570\u636e\u96c6\u9700\u8981\u5927\u91cf\u7684\u65f6\u95f4\u548c\u4eba\u529b\u8d44\u6e90\uff0c\u76ee\u524d\u8fd8\u6ca1\u6709\u73b0\u6210\u7684\u5927\u89c4\u6a21\u6570\u636e\u96c6\u53ef\u4f9b\u4f7f\u7528\u3002\u7531\u8c37\u6b4c\u63d0\u51fa\u7684 DreamFusion [1] \u5229\u7528\u9884\u8bad\u7ec3\u7684 2D \u6587\u672c\u5230\u56fe\u50cf\u6269\u6563\u6a21\u578b\uff0c\u9996\u6b21\u5728\u65e0\u9700 3D \u6570\u636e\u7684\u60c5\u51b5\u4e0b\u5b8c\u6210\u5f00\u653e\u57df\u7684\u6587\u672c\u5230 3D \u7684\u5408\u6210\u3002\u4f46\u662f DreamFusion \u63d0\u51fa\u7684 Score Distillation Sampling (SDS) [1] \u7b97\u6cd5\u751f\u6210\u7ed3\u679c\u9762\u4e34\u4e25\u91cd\u7684\u8fc7\u9971\u548c\u3001\u8fc7\u5e73\u6ed1\u3001\u7f3a\u5c11\u7ec6\u8282\u7b49\u95ee\u9898\u3002\u9ad8\u8d28\u91cf 3D \u5185\u5bb9\u751f\u6210\u76ee\u524d\u4ecd\u7136\u662f\u975e\u5e38\u56f0\u96be\u7684\u524d\u6cbf\u95ee\u9898\u4e4b\u4e00\u3002ProlificDreamer \u8bba\u6587\u63d0\u51fa\u4e86 Variational Score Distillation\uff08VSD\uff09\u7b97\u6cd5\uff0c\u4ece\u8d1d\u53f6\u65af\u5efa\u6a21\u548c\u53d8\u5206\u63a8\u65ad\uff08variational inference\uff09\u7684\u89d2\u5ea6\u91cd\u65b0\u5f62\u5f0f\u5316\u4e86 text-to-3D \u95ee\u9898\u3002\u5177\u4f53\u800c\u8a00\uff0cVSD \u628a 3D \u53c2\u6570\u5efa\u6a21\u4e3a\u4e00\u4e2a\u6982\u7387\u5206\u5e03\uff0c\u5e76\u4f18\u5316\u5176\u6e32\u67d3\u7684\u4e8c\u7ef4\u56fe\u7247\u7684\u5206\u5e03\u548c\u9884\u8bad\u7ec3 2D \u6269\u6563\u6a21\u578b\u7684\u5206\u5e03\u95f4\u7684\u8ddd\u79bb\u3002\u53ef\u4ee5\u8bc1\u660e\uff0cVSD \u7b97\u6cd5\u4e2d\u7684 3D \u53c2\u6570\u8fd1\u4f3c\u4e86\u4ece 3D \u5206\u5e03\u4e2d\u91c7\u6837\u7684\u8fc7\u7a0b\uff0c\u89e3\u51b3\u4e86 DreamFusion \u6240\u63d0 SDS \u7b97\u6cd5\u7684\u8fc7\u9971\u548c\u3001\u8fc7\u5e73\u6ed1\u3001\u7f3a\u5c11\u591a\u6837\u6027\u7b49\u95ee\u9898\u3002\u6b64\u5916\uff0cSDS \u5f80\u5f80\u9700\u8981\u5f88\u5927\u7684\u76d1\u7763\u6743\u91cd\uff08CFG=100\uff09\uff0c\u800c VSD \u662f\u9996\u4e2a\u53ef\u4ee5\u7528\u6b63\u5e38 CFG\uff08=7.5\uff09\u7684\u7b97\u6cd5\u3002<\/p>\n\n\n\n<p>\u4e0e\u4ee5\u5f80\u65b9\u6cd5\u4e0d\u540c\uff0cProlificDreamer \u5e76\u4e0d\u5355\u7eaf\u4f18\u5316\u5355\u4e2a 3D \u7269\u4f53\uff0c\u800c\u662f\u4f18\u5316 3D \u7269\u4f53\u5bf9\u5e94\u7684<strong>\u6982\u7387\u5206\u5e03<\/strong>\u3002\u901a\u5e38\u800c\u8a00\uff0c\u7ed9\u5b9a\u4e00\u4e2a\u6709\u6548\u7684\u6587\u672c\u8f93\u5165\uff0c\u5b58\u5728\u4e00\u4e2a\u6982\u7387\u5206\u5e03\u5305\u542b\u4e86\u8be5\u6587\u672c\u63cf\u8ff0\u4e0b\u6240\u6709\u53ef\u80fd\u7684 3D \u7269\u4f53\u3002\u57fa\u4e8e\u8be5 3D \u6982\u7387\u5206\u5e03\uff0c\u6211\u4eec\u53ef\u4ee5\u8fdb\u4e00\u6b65\u8bf1\u5bfc\u51fa\u4e00\u4e2a 2D \u6982\u7387\u5206\u5e03\u3002\u5177\u4f53\u800c\u8a00\uff0c\u53ea\u9700\u8981\u5bf9\u6bcf\u4e00\u4e2a 3D \u7269\u4f53\u7ecf\u8fc7\u76f8\u673a\u6e32\u67d3\u5230 2D\uff0c\u5373\u53ef\u5f97\u5230\u4e00\u4e2a 2D \u56fe\u50cf\u7684\u6982\u7387\u5206\u5e03\u3002\u56e0\u6b64\uff0c\u4f18\u5316 3D \u5206\u5e03\u53ef\u4ee5\u88ab\u7b49\u6548\u5730\u8f6c\u6362\u4e3a\u4f18\u5316 2D \u6e32\u67d3\u56fe\u7247\u7684\u6982\u7387\u5206\u5e03\u4e0e 2D \u6269\u6563\u6a21\u578b\u5b9a\u4e49\u7684\u6982\u7387\u5206\u5e03\u4e4b\u95f4\u7684\u8ddd\u79bb\uff08\u7531 KL \u6563\u5ea6\u5b9a\u4e49\uff09\u3002\u8fd9\u662f\u4e00\u4e2a\u7ecf\u5178\u7684\u53d8\u5206\u63a8\u65ad\uff08variational inference\uff09\u4efb\u52a1\uff0c\u56e0\u6b64 ProlificDreamer \u6587\u4e2d\u5c06\u8be5\u4efb\u52a1\u53ca\u5bf9\u5e94\u7684\u7b97\u6cd5\u79f0\u4e3a\u53d8\u5206\u5f97\u5206\u84b8\u998f\uff08Variational Score Distillation\uff0cVSD\uff09\u3002\u5177\u4f53\u800c\u8a00\uff0cVSD \u7684\u7b97\u6cd5\u6d41\u7a0b\u56fe\u5982\u4e0b\u6240\u793a\u3002\u5176\u4e2d\uff0c3D \u7269\u4f53\u7684\u8fed\u4ee3\u66f4\u65b0\u9700\u8981\u4f7f\u7528\u4e24\u4e2a\u6a21\u578b\uff1a\u4e00\u4e2a\u662f\u9884\u8bad\u7ec3\u7684 2D \u6269\u6563\u6a21\u578b\uff08\u4f8b\u5982 Stable-Diffusion\uff09\uff0c\u53e6\u4e00\u4e2a\u662f\u57fa\u4e8e\u8be5\u9884\u8bad\u7ec3\u6a21\u578b\u7684 LoRA\uff08low-rank adaptation\uff09\u3002\u8be5 LoRA \u4f30\u8ba1\u4e86\u5f53\u524d 3D \u7269\u4f53\u8bf1\u5bfc\u7684 2D \u56fe\u7247\u5206\u5e03\u7684\u5f97\u5206\u51fd\u6570\uff08score function\uff09\uff0c\u5e76\u8fdb\u4e00\u6b65\u7528\u4e8e\u66f4\u65b0 3D \u7269\u4f53\u3002\u8be5\u7b97\u6cd5\u5b9e\u9645\u4e0a\u5728\u6a21\u62df Wasserstein \u68af\u5ea6\u6d41\uff0c\u5e76\u53ef\u4ee5\u4fdd\u8bc1\u6536\u655b\u5f97\u5230\u7684\u5206\u5e03\u6ee1\u8db3\u4e0e\u9884\u8bad\u7ec3\u7684 2D \u6269\u6563\u6a21\u578b\u7684 KL \u6563\u5ea6\u6700\u5c0f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"280\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-19-1024x280.png\" alt=\"\" class=\"wp-image-15215\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-19-1024x280.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-19-300x82.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-19-768x210.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/05\/image-19.png 1328w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"has-light-pink-background-color has-background\">3D\u8868\u793a+2D Diffusion\u505a3D\u4efb\u52a1\u7684\u56db\u4e2a\u6d41\u6d3e\uff1a<\/h2>\n\n\n\n<ol><li>\u7528Diffusion\u4f18\u53163D\u9690\u5f0f\u573a\uff08<strong>\u5176\u4e2dDiffusion\u662f\u9884\u8bad\u7ec3\u7684<\/strong>\uff09\uff0c\u7279\u522b\u662fNeRF\u76f8\u5173\u5de5\u4f5c\uff0c\u4f8b\u5982DreamFusion\u548cSparseFusion\uff1b<\/li><li>\u4f7f\u75283D Unet\u5b9a\u52363D Diffusion\uff0c\u7279\u522b\u662fpoint cloud\u76f8\u5173\u5de5\u4f5c\uff1b<\/li><li>\u628a3D\u8868\u793a\u62c6\u89e3\u5e76\u4e14\u91cd\u65b0\u62fc\u63a5\uff0c\u53d8\u6210\u8d85\u591a\u901a\u90532D\u56fe\u50cf\uff0c\u76f4\u63a5\u590d\u75282D Diffusion\uff0c\u7279\u522b\u662fTriplane\u76f8\u5173\u5de5\u4f5c\uff0c\u4f8b\u59823D Neural Field Generation using Triplane Diffusion\uff1b<\/li><li>\u628a2D Diffusion\u7684Unet()\u6362\u6210\u4e00\u4e2arenderer+encoder\u7684\u7ed3\u6784\uff0c\u5373\u95f4\u63a5\u5f15\u51653D\u7ea6\u675f\uff0c\u4f8b\u5982RenderDiffusion\uff1b<\/li><li>\u5c063D\u7ea6\u675f\u7f16\u7801\u6210\u6761\u4ef6\uff0c\u7528\u6765\u7ea6\u675f2D Diffusion\uff0c\u4f8b\u5982DiffPose\uff1b<\/li><\/ol>\n\n\n\n<h2>9\uff1a GET3D \u82f1\u4f1f\u8fbe\uff1a\u566a\u58f0&#8212;-&gt;3D\u7269\u4f53<\/h2>\n\n\n\n<p>A Generative Model of High Quality 3D Textured Shapes Learned from Images&nbsp;<strong>(NeurIPS 2022<\/strong>&nbsp;)<\/p>\n\n\n\n<p><strong>\u4ee3\u7801<\/strong>\uff1ahttps:\/\/github.com\/nv-tlabs\/GET3D<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"365\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-1024x365.png\" alt=\"\" class=\"wp-image-15272\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-1024x365.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-300x107.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-768x273.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-1536x547.png 1536w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image.png 1927w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>GET3D \u5305\u62ec\u4e24\u4e2a\u5206\u652f\uff1a<\/p>\n\n\n\n<p>1.\u51e0\u4f55\u5206\u652f\uff1a\u53ef\u5fae\u7684\u8f93\u51fa\u4efb\u610f\u62d3\u6251\u7684\u8868\u9762mesh<\/p>\n\n\n\n<p>2.\u7eb9\u7406\u5206\u652f\uff1a\u6839\u636e\u67e5\u8be2\u7684\u8868\u9762\u70b9\u6765\u4ea7\u751f texture field\uff0c\u8fd8\u53ef\u4ee5\u6269\u5c55\u5230\u8868\u9762\u7684\u5176\u4ed6\u5c5e\u6027\uff0c\u6bd4\u5982\u6750\u8d28<\/p>\n\n\n\n<p>\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\uff0c\u4e00\u4e2a\u6709\u6548\u7684\u53ef\u5fae\u6805\u683c\u5668\u5c06\u751f\u6210\u7684\u5e26\u7eb9\u7406 3D \u6a21\u578b\u6295\u5f71\u5230 2D \u7684\u9ad8\u5206\u8fa8\u7387\u56fe\u7247\u3002\u6574\u4e2a\u8fc7\u7a0b\u90fd\u662f\u53ef\u5fae\u5206\u7684\uff0c\u4f7f\u5f97\u6574\u4e2a\u5bf9\u6297\u8bad\u7ec3\u53ef\u4ee5\u4ece discriminator \u4f20\u9012\u5230\u4e24\u4e2a\u5206\u652f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"317\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-1-1024x317.png\" alt=\"\" class=\"wp-image-15274\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-1-1024x317.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-1-300x93.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-1-768x238.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-1-1536x476.png 1536w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-1.png 1905w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"358\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-2-1024x358.png\" alt=\"\" class=\"wp-image-15275\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-2-1024x358.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-2-300x105.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-2-768x268.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-2-1536x537.png 1536w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-2.png 1714w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2>10.  DragGAN meets GET3D for interactive mesh generation and editing.<\/h2>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/github.com\/ashawkey\/Drag3D\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/github.com\/ashawkey\/Drag3D<\/a><\/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\/07\/image-3.png\" alt=\"\" class=\"wp-image-15278\" width=\"436\" height=\"407\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-3.png 993w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-3-300x280.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-3-768x717.png 768w\" sizes=\"(max-width: 436px) 100vw, 436px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/github.com\/XingangPan\/DragGAN\">https:\/\/github.com\/XingangPan\/DragGAN<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"900\" height=\"591\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-4.png\" alt=\"\" class=\"wp-image-15279\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-4.png 900w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-4-300x197.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2023\/07\/image-4-768x504.png 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>1\u3001DreamFusion\uff08\u8c37\u6b4c\uff09 \u9879\u76ee\u4e3b\u9875\uff1ahttps:\/\/dreamfusion3d.github.io\/ &hellip; <a href=\"http:\/\/139.9.1.231\/index.php\/2023\/05\/11\/ai_3d\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">AI\u751f\u62103D\u6a21\u578b\uff1aDreamFusion\u3001Point-E\u3001Magic3D<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[37,4,31],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/15055"}],"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=15055"}],"version-history":[{"count":67,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/15055\/revisions"}],"predecessor-version":[{"id":15280,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/15055\/revisions\/15280"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=15055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=15055"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=15055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}