{"id":303,"date":"2021-07-18T11:07:00","date_gmt":"2021-07-18T02:07:00","guid":{"rendered":"https:\/\/arithmer.blog\/?p=303"},"modified":"2022-03-08T15:43:59","modified_gmt":"2022-03-08T06:43:59","slug":"weakly-supervised-semantic-segmentation-in-3dgraph-structured-point-clouds-of-wild-scenes","status":"publish","type":"post","link":"https:\/\/arithmer.blog\/blog\/weakly-supervised-semantic-segmentation-in-3dgraph-structured-point-clouds-of-wild-scenes","title":{"rendered":"Weakly Supervised Semantic Segmentation in 3DGraph-Structured Point Clouds of Wild Scenes"},"content":{"rendered":"\n<p class=\"has-small-font-size\">\u672c\u8cc7\u6599\u306f2021\u5e747\u670818\u65e5\u306b\u793e\u5185\u5171\u6709\u8cc7\u6599\u3068\u3057\u3066\u5c55\u958b\u3057\u3066\u3044\u305f\u3082\u306e\u3092WEB\u30da\u30fc\u30b8\u5411\u3051\u306b\u30ea\u30cb\u30e5\u30fc\u30a2\u30eb\u3057\u305f\u5185\u5bb9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"\u76ee\u6b21\"><strong>\u25a0\u76ee\u6b21<\/strong><\/h3>\n\n\n\n<p style=\"font-size:16px\"><strong>Introduction<\/strong><\/p>\n\n\n\n<ul style=\"font-size:16px\"><li>Point clouds<\/li><li>Task: semantic segmentation of point clouds<\/li><li>Idea: weakly supervised learning with 2D projected image<\/li><li>Note: Projection of 3D pointcloud onto 2D image<\/li><\/ul>\n\n\n\n<p style=\"font-size:16px\"><strong>Method<\/strong><\/p>\n\n\n\n<ul style=\"font-size:16px\"><li>Model architecture<\/li><li>Perspective rendering<\/li><\/ul>\n\n\n\n<p style=\"font-size:16px\"><strong>Experiments<\/strong><\/p>\n\n\n\n<ul style=\"font-size:16px\"><li>Datasets<\/li><li>Metrics<\/li><li>Comparison with other fully-supervised methods<\/li><li>Inference samples for SUNCG dataset<\/li><li>Inference samples for S3DIS dataset<\/li><\/ul>\n\n\n\n<p style=\"font-size:16px\"><strong>Conclusion<\/strong><\/p>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"point-clouds\"><strong>\u25a0Point clouds<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"385\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_01.jpg\" alt=\"\" class=\"wp-image-307\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_01.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_01-300x113.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_01-768x289.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_01-304x114.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"task-semantic-segmentation-of-point-clouds\"><strong>\u25a0Task: semantic segmentation of point clouds<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"400\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_02.jpg\" alt=\"\" class=\"wp-image-308\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_02.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_02-300x117.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_02-768x300.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_02-304x119.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"idea-weakly-supervised-learning-with-2d-projected-image\"><strong>\u25a0Idea: weakly supervised learning with 2D projected image<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"416\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_03.jpg\" alt=\"\" class=\"wp-image-309\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_03.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_03-300x122.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_03-768x312.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_03-304x124.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"note-projection-of-3d-pointcloud-onto-2d-image\"><strong>\u25a0Note: Projection of 3D pointcloud onto 2D image<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"416\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_04.jpg\" alt=\"\" class=\"wp-image-310\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_04.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_04-300x122.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_04-768x312.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_04-304x124.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"model-architecture\"><strong>\u25a0Model architecture<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"433\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_05.jpg\" alt=\"\" class=\"wp-image-311\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_05.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_05-300x127.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_05-768x325.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_05-304x129.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"perspective-rendering\"><strong>\u25a0Perspective rendering<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"389\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_06.jpg\" alt=\"\" class=\"wp-image-312\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_06.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_06-300x114.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_06-768x292.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_06-304x115.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"datasets\"><strong>\u25a0Datasets<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"425\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_07.jpg\" alt=\"\" class=\"wp-image-313\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_07.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_07-300x125.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_07-768x319.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_07-304x126.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"metrics\"><strong>\u25a0Metrics<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"382\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_08.jpg\" alt=\"\" class=\"wp-image-314\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_08.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_08-300x112.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_08-768x287.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_08-304x113.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"comparison-with-other-fully-supervised-methods\"><strong>\u25a0Comparison with other fully-supervised methods<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"382\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_09.jpg\" alt=\"\" class=\"wp-image-315\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_09.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_09-300x112.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_09-768x287.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_09-304x113.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"inference-samples-for-suncg-dataset\"><strong>\u25a0Inference samples for SUNCG dataset<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"413\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_10.jpg\" alt=\"\" class=\"wp-image-316\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_10.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_10-300x121.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_10-768x310.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_10-304x123.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"inference-samples-for-s3dis-dataset\"><strong>\u25a0Inference samples for S3DIS dataset<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"463\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_11.jpg\" alt=\"\" class=\"wp-image-317\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_11.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_11-300x136.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_11-768x347.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_11-304x137.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"conclusion\"><strong>\u25a0Conclusion<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"460\" src=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_12.jpg\" alt=\"\" class=\"wp-image-318\" srcset=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_12.jpg 1024w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_12-300x135.jpg 300w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_12-768x345.jpg 768w, https:\/\/arithmer.blog\/wp-content\/uploads\/2022\/02\/NS20210718_12-304x137.jpg 304w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<h3 class=\"has-medium-font-size wp-block-heading\" id=\"\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\"><strong>\u25a0\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/strong><\/h3>\n\n\n\n<p style=\"font-size:16px\"><a href=\"https:\/\/arithmer.blog\/wp-content\/uploads\/2021\/07\/26_2Dweaklysupervisedsemanticsegmentationin3dgraph-structuredpointcloudsofwildscenes-20211001.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Weakly Supervised Semantic Segmentation in 3DGraph-Structured Point Clouds of Wild Scenes.pdf<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u8cc7\u6599\u306f2021\u5e747\u670818\u65e5\u306b\u793e\u5185\u5171\u6709\u8cc7\u6599\u3068\u3057\u3066\u5c55\u958b\u3057\u3066\u3044\u305f\u3082\u306e\u3092WEB\u30da\u30fc\u30b8\u5411\u3051\u306b\u30ea\u30cb\u30e5\u30fc\u30a2\u30eb\u3057\u305f\u5185\u5bb9\u306b\u306a\u308a\u307e\u3059\u3002 \u25a0\u76ee\u6b21 Introduction Point clouds Task: semantic segmen &#8230; <\/p>\n","protected":false},"author":3,"featured_media":306,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[56],"_links":{"self":[{"href":"https:\/\/arithmer.blog\/index.php?rest_route=\/wp\/v2\/posts\/303"}],"collection":[{"href":"https:\/\/arithmer.blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arithmer.blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arithmer.blog\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/arithmer.blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=303"}],"version-history":[{"count":4,"href":"https:\/\/arithmer.blog\/index.php?rest_route=\/wp\/v2\/posts\/303\/revisions"}],"predecessor-version":[{"id":713,"href":"https:\/\/arithmer.blog\/index.php?rest_route=\/wp\/v2\/posts\/303\/revisions\/713"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arithmer.blog\/index.php?rest_route=\/wp\/v2\/media\/306"}],"wp:attachment":[{"href":"https:\/\/arithmer.blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arithmer.blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=303"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arithmer.blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}