{"id":11460,"date":"2024-06-13T17:11:47","date_gmt":"2024-06-13T09:11:47","guid":{"rendered":"http:\/\/192.168.10.115\/?p=11460"},"modified":"2024-06-13T17:11:47","modified_gmt":"2024-06-13T09:11:47","slug":"2024-06-13-%e9%80%9f%e5%ba%a6%e6%8f%90%e9%ab%9860%e5%80%8d%ef%bc%81gaussiancity%ef%bc%9a%e9%87%8d%e5%bb%ba%e4%bd%a0%e7%9a%84%e8%87%aa%e5%8a%a8%e9%a9%be%e9%a9%b6%e5%9c%ba%e6%99%af%e5%8d%97%e6%b4%8b","status":"publish","type":"post","link":"http:\/\/222.128.65.89:18086\/index.php\/2024\/06\/13\/11460\/","title":{"rendered":"2024-06-13 \u901f\u5ea6\u63d0\u9ad860\u500d\uff01GaussianCity\uff1a\u91cd\u5efa\u4f60\u7684\u81ea\u52a8\u9a7e\u9a76\u573a\u666f(\u5357\u6d0b\u7406\u5de5\u5927\u5b66)"},"content":{"rendered":"\n

\u57fa\u4e8eNeRF\u7684\u65b9\u6cd5\u751f\u62103D\u57ce\u5e02\u663e\u793a\u51fa\u4e86\u6709\u5e0c\u671b\u7684\u751f\u6210\u7ed3\u679c\uff0c\u4f46\u5728\u8ba1\u7b97\u4e0a\u6548\u7387\u4e0d\u9ad8\u3002\u6700\u8fd1\uff0c3D\u9ad8\u65afSplatting\uff083D-GS\uff09\u5df2\u6210\u4e3a\u76ee\u6807\u7ea73D\u751f\u6210\u7684\u9ad8\u6548\u66ff\u4ee3\u65b9\u6848\u3002\u7136\u800c\uff0c\u5c063D-GS\u4ece\u6709\u9650\u5c3a\u5ea6\u76843D\u7269\u4f53\u548c\u4eba\u7c7b\u6269\u5c55\u5230\u65e0\u9650\u5c3a\u5ea6\u76843D\u57ce\u5e02\u5e76\u975e\u6613\u4e8b\u3002\u65e0\u8fb9\u754c\u76843D\u57ce\u5e02\u751f\u6210\u4f1a\u4ea7\u751f\u663e\u8457\u7684\u5b58\u50a8\u5f00\u9500\uff08\u5185\u5b58\u6ea2\u51fa\u95ee\u9898\uff09\uff0c\u56e0\u4e3a\u9700\u8981\u5c06\u70b9\u6269\u5c55\u5230\u6570\u5341\u4ebf\u4e2a\uff0c\u8fd9\u901a\u5e38\u9700\u8981\u6570\u767eGB\u7684VRAM\u6765\u5448\u73b0\u4e00\u4e2a\u8de8\u8d8a10km\u00b2\u7684\u57ce\u5e02\u573a\u666f\u3002<\/p>\n\n\n\n

GaussianCity\uff0c\u4e00\u4e2a\u751f\u6210\u6027Gaussain Saplatting\u6846\u67b6\uff0c\u4e13\u95e8\u7528\u4e8e\u901a\u8fc7\u5355\u6b21\u524d\u9988\u4f20\u9012\u9ad8\u6548\u5730\u5408\u6210\u65e0\u8fb9\u754c\u76843D\u57ce\u5e02\u3002\u4e3b\u8981\u8d21\u732e\u6709\u4e24\u70b9\uff1a<\/p>\n\n\n\n

1\uff09\u7d27\u51d1\u76843D\u573a\u666f\u8868\u793a\uff1a\u5f15\u5165\u4e86BEV-Point\u4f5c\u4e3a\u9ad8\u5ea6\u7d27\u51d1\u7684\u4e2d\u95f4\u8868\u793a\uff0c\u786e\u4fdd\u65e0\u8fb9\u754c\u573a\u666f\u4e2d\u7684VRAM\u4f7f\u7528\u91cf\u589e\u957f\u4fdd\u6301\u4e0d\u53d8\uff0c\u4ece\u800c\u5b9e\u73b0\u65e0\u8fb9\u754c\u57ce\u5e02\u7684\u751f\u6210\u3002<\/p>\n\n\n\n

2\uff09\u7a7a\u95f4\u611f\u77e5\u7684\u9ad8\u65af\u5c5e\u6027\u89e3\u7801\u5668\uff1a\u63d0\u51fa\u4e86\u7a7a\u95f4\u611f\u77e5\u7684BEV-Point\u89e3\u7801\u5668\u6765\u751f\u62103D\u9ad8\u65af\u5c5e\u6027\uff0c\u8be5\u89e3\u7801\u5668\u5229\u7528\u70b9\u5e8f\u5217\u5316\u5668\u6574\u5408BEV\u70b9\u7684\u7ed3\u6784\u548c\u4e0a\u4e0b\u6587\u7279\u5f81\u3002<\/p>\n\n\n\n

\u5927\u91cf\u5b9e\u9a8c\u8868\u660e\uff0cGaussianCity\u5728\u65e0\u4eba\u673a\u89c6\u89d2\u548c\u8857\u9053\u89c6\u89d2\u76843D\u57ce\u5e02\u751f\u6210\u4e2d\u90fd\u53d6\u5f97\u4e86\u6700\u5148\u8fdb\u7684\u7ed3\u679c\u3002\u7279\u522b\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u4e0eCityDreamer\u76f8\u6bd4\uff0cGaussianCity\u8868\u73b0\u51fa\u66f4\u4f18\u8d8a\u7684\u6027\u80fd\uff0c\u901f\u5ea6\u63d0\u9ad8\u4e8660\u500d\uff0810.72 FPS vs 0.18 FPS\uff09\u3002<\/p>\n\n\n\n

GaussianCity\u65b9\u6cd5\u4ecb\u7ecd<\/strong><\/p>\n\n\n\n

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

BEV-Point Initialization<\/strong><\/p>\n\n\n\n

\u57283D-GS\u4e2d\uff0c\u6240\u6709\u76843D\u9ad8\u65af\u51fd\u6570\u5728\u4f18\u5316\u8fc7\u7a0b\u4e2d\u90fd\u4f1a\u4f7f\u7528\u4e00\u7ec4\u9884\u5b9a\u4e49\u7684\u53c2\u6570\u8fdb\u884c\u521d\u59cb\u5316\u3002\u7136\u800c\uff0c\u968f\u7740\u573a\u666f\u89c4\u6a21\u7684\u6269\u5927\uff0cVRAM\u7684\u4f7f\u7528\u91cf\u4f1a\u6025\u5267\u589e\u52a0\uff0c\u4f7f\u5f97\u751f\u6210\u5927\u89c4\u6a21\u573a\u666f\u53d8\u5f97\u4e0d\u5b9e\u9645\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u8fd9\u91cc\u63d0\u51fa\u4e86\u4e00\u79cd\u9ad8\u5ea6\u7d27\u51d1\u7684\u8868\u793a\u65b9\u6cd5\uff0c\u5373BEV-Point\u3002\u5728BEV-Point\u8868\u793a\u6cd5\u4e2d\uff0c\u4ec5\u4fdd\u7559\u53ef\u89c1\u7684BEV\u70b9\uff0c\u56e0\u4e3a\u53ea\u6709\u5b83\u4eec\u4f1a\u5f71\u54cd\u5f53\u524d\u5e27\u7684apperance\u3002\u5b83\u786e\u4fddVRAM\u7684\u4f7f\u7528\u91cf\u4fdd\u6301\u4e0d\u53d8\uff0c\u56e0\u4e3a\u7ed9\u5b9a\u56fa\u5b9a\u7684\u76f8\u673a\u53c2\u6570\uff0c\u53ef\u89c1BEV\u70b9\u7684\u6570\u91cf\u4e0d\u4f1a\u968f\u7740\u573a\u666f\u89c4\u6a21\u7684\u589e\u52a0\u800c\u589e\u52a0\u3002<\/p>\n\n\n\n

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

BEV-Point Feature Generation<\/strong><\/p>\n\n\n\n

BEV-Point\u8868\u793a\u4e2d\u7684\u7279\u5f81\u53ef\u4ee5\u5206\u4e3a\u4e09\u7c7b\uff1a\u5b9e\u4f8b\u5c5e\u6027\u3001BEV-Point\u5c5e\u6027\u548c\u6837\u5f0f\u67e5\u627e\u8868\u3002\u5b9e\u4f8b\u5c5e\u6027\u5305\u542b\u6bcf\u4e2a\u5b9e\u4f8b\u7684\u57fa\u672c\u7ec6\u8282\uff0c\u5982\u5b9e\u4f8b\u6807\u7b7e\u3001\u5927\u5c0f\u548c\u4e2d\u5fc3\u5750\u6807\u3002BEV-Point\u5c5e\u6027\u51b3\u5b9a\u4e86\u5b9e\u4f8b\u5185\u7684apperance\uff0c\u800c\u6837\u5f0f\u67e5\u627e\u8868\u5219\u63a7\u5236\u4e0d\u540c\u5b9e\u4f8b\u4e4b\u95f4\u7684\u6837\u5f0f\u53d8\u5316\u3002<\/p>\n\n\n\n

\u5b9e\u4f8b\u5c5e\u6027\u3002\u8bed\u4e49\u5730\u56feS\u4e3aBEV\u70b9\u63d0\u4f9b\u4e86\u8bed\u4e49\u6807\u7b7e\uff0c\u53c2\u7167CityDreamer\uff0c\u8fd9\u91cc\u5f15\u5165\u4e86\u5b9e\u4f8b\u5730\u56feQ\u6765\u5904\u7406\u57ce\u5e02\u73af\u5883\u4e2d\u5efa\u7b51\u548c\u8f66\u8f86\u7684\u591a\u6837\u6027\u3002<\/p>\n\n\n\n

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

\u5176\u4e2d\uff0cInst(\u00b7) \u8868\u793a\u901a\u8fc7\u5728\u8bed\u4e49\u5730\u56fe\u4e0a\u68c0\u6d4b\u8fde\u901a\u5206\u91cf\u6765\u8fdb\u884c\u5b9e\u4f8b\u5316\u3002\u56e0\u6b64\uff0cBEV\u70b9\u7684\u5b9e\u4f8b\u6807\u7b7eI\u53ef\u4ee5\u8ba1\u7b97\u4e3a\uff1a<\/p>\n\n\n\n

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

\u6837\u5f0f\u67e5\u627e\u8868\u3002\u57283D-GS\u4e2d\uff0c3D\u9ad8\u65af\u51fd\u6570\u7684\u5916\u89c2\u7531\u6bcf\u4e2a\u9ad8\u65af\u51fd\u6570\u7684\u5c5e\u6027\u5b9a\u4e49\u3002\u968f\u77403D\u9ad8\u65af\u51fd\u6570\u6570\u91cf\u7684\u589e\u52a0\uff0c\u5bf9VRAM\u548c\u6587\u4ef6\u5b58\u50a8\u7684\u9700\u6c42\u4e5f\u663e\u8457\u589e\u52a0\uff0c\u4f7f\u5f97\u65e0\u9650\u5236\u7684\u573a\u666f\u751f\u6210\u53d8\u5f97\u4e0d\u53ef\u884c\u3002\u4e3a\u4e86\u8fdb\u4e00\u6b65\u964d\u4f4e\u8ba1\u7b97\u6210\u672c\uff0c\u5b9e\u4f8b\u7684\u5916\u89c2\u88ab\u7f16\u7801\u4e3a\u4e00\u7ec4\u6f5c\u5728\u5411\u91cfZT \u5373:<\/p>\n\n\n\n

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

BEV-Point Decoding<\/strong><\/p>\n\n\n\n

BEV-Point\u89e3\u7801\u5668\u88ab\u8bbe\u8ba1\u7528\u6765\u5229\u7528BEV-Point\u7279\u5f81\u751f\u6210\u9ad8\u65af\u5c5e\u6027A\u3002\u5b83\u5305\u542b\u4e94\u4e2a\u5173\u952e\u6a21\u5757\uff1apositional encoder, point serializer, point transformer, modulated MLP, and Gaussian rasterizer\u3002<\/p>\n\n\n\n

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

\u70b9\u5e8f\u5217\u5316\u5668\u3002\u4e0eNeRF\u4e0d\u540c\uff0cNeRF\u7ef4\u6301\u4e86\u6cbf\u5c04\u7ebf\u91c7\u6837\u7684\u70b9\u4e4b\u95f4\u7684\u7a7a\u95f4\u76f8\u5173\u6027\uff0c\u4f46\u7531\u4e8e\u70b9\u4e91\u7684\u4e0d\u89c4\u5219\u6027\uff0cBEV\u70b9\u548c3D\u9ad8\u65af\u51fd\u6570\u662f\u65e0\u7ed3\u6784\u548c\u65e0\u5e8f\u7684\u3002\u56e0\u6b64\uff0c\u76f4\u63a5\u5c06\u591a\u5c42\u611f\u77e5\u673a\uff08MLPs\uff09\u5e94\u7528\u4e8e\u4eceFP\u751f\u6210\u9ad8\u65af\u5c5e\u6027\u53ef\u80fd\u4e0d\u4f1a\u4ea7\u751f\u6700\u4f18\u7ed3\u679c\uff0c\u56e0\u4e3aMLPs\u5e76\u6ca1\u6709\u5b8c\u5168\u8003\u8651\u70b9\u4e91\u7684\u7ed3\u6784\u548c\u4e0a\u4e0b\u6587\u7279\u6027\u3002<\/p>\n\n\n\n

\u4e3a\u4e86\u5c06\u65e0\u7ed3\u6784\u7684BEV\u70b9\u8f6c\u6362\u4e3a\u7ed3\u6784\u5316\u683c\u5f0f\uff0c\u8fd9\u91cc\u63d0\u51fa\u4e86\u70b9\u5e8f\u5217\u5316\u5668L: (x, y, z) \u2192 o\uff0c\u5176\u4e2do \u2208 Z\uff0c\u7528\u4e8e\u5c06\u70b9\u5750\u6807\u8f6c\u6362\u4e3a\u6574\u6570\uff0c\u4ee5\u53cd\u6620\u8be5\u70b9\u5728\u7ed9\u5b9aBEV\u70b9\u4e2d\u7684\u987a\u5e8f\u3002<\/p>\n\n\n\n

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

point transformer\u3002\u5728\u5e8f\u5217\u5316\u4e4b\u540e\uff0cBEV\u70b9\u7684\u7279\u5f81\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2aTransformer F\u8fdb\u884c\u5904\u7406\uff1a<\/p>\n\n\n\n

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

\u5728\u6805\u683c\u5316\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679cA\u4e2d\u672a\u751f\u6210\u6240\u9700\u7684\u5c5e\u6027\uff0c\u5219\u4f1a\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002\u8fd9\u4e9b\u9ed8\u8ba4\u503c\u5305\u62ec\u7f29\u653e\u56e0\u5b50s = 1\uff0c\u65cb\u8f6c\u56db\u5143\u6570q = [1, 0, 0, 0]\uff0c\u4ee5\u53ca\u4e0d\u900f\u660e\u5ea6\u03b1 = 1\u3002<\/p>\n\n\n\n

\u635f\u5931\u51fd\u6570<\/strong><\/p>\n\n\n\n

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

\u5b9e\u9a8c\u5bf9\u6bd4<\/strong><\/p>\n\n\n\n

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

\u53c2\u8003<\/strong><\/p>\n\n\n\n

[1] GaussianCity: Generative Gaussian Splatting for Unbounded 3D City Generation<\/p>\n","protected":false},"excerpt":{"rendered":"

\u57fa\u4e8eNeRF\u7684\u65b9\u6cd5\u751f\u62103D\u57ce\u5e02\u663e\u793a\u51fa\u4e86\u6709\u5e0c\u671b\u7684 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,1],"tags":[],"class_list":["post-11460","post","type-post","status-publish","format-standard","hentry","category-technology-frontier","category-home"],"views":0,"_links":{"self":[{"href":"http:\/\/222.128.65.89:18086\/index.php\/wp-json\/wp\/v2\/posts\/11460"}],"collection":[{"href":"http:\/\/222.128.65.89:18086\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/222.128.65.89:18086\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/222.128.65.89:18086\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/222.128.65.89:18086\/index.php\/wp-json\/wp\/v2\/comments?post=11460"}],"version-history":[{"count":1,"href":"http:\/\/222.128.65.89:18086\/index.php\/wp-json\/wp\/v2\/posts\/11460\/revisions"}],"predecessor-version":[{"id":11489,"href":"http:\/\/222.128.65.89:18086\/index.php\/wp-json\/wp\/v2\/posts\/11460\/revisions\/11489"}],"wp:attachment":[{"href":"http:\/\/222.128.65.89:18086\/index.php\/wp-json\/wp\/v2\/media?parent=11460"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/222.128.65.89:18086\/index.php\/wp-json\/wp\/v2\/categories?post=11460"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/222.128.65.89:18086\/index.php\/wp-json\/wp\/v2\/tags?post=11460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}