{"id":372,"date":"2006-10-27T13:25:25","date_gmt":"2006-10-27T11:25:25","guid":{"rendered":"http:\/\/www.mpateraki.org\/?p=372"},"modified":"2015-01-27T13:42:54","modified_gmt":"2015-01-27T11:42:54","slug":"from-point-samples-to-surfaces-on-meshing-and-alternatives","status":"publish","type":"post","link":"https:\/\/mpateraki.org\/?p=372","title":{"rendered":"From point samples to surfaces \u2013 on meshing and alternatives"},"content":{"rendered":"<p>Boehm J., Pateraki M., 2006. From point samples to surfaces \u2013 on meshing and alternatives. In: Proc. of the ISPRS Commission V Symposium Image Engineering and Vision Metrology, IAPRS, Vol. 37, Part B5. [<a href=\"http:\/\/www.isprs.org\/proceedings\/XXXVI\/part5\/paper\/BOEHM_640.pdf\" target=\"_blank\">pdf<\/a>] [<a href=\"http:\/\/www.mpateraki.org\/wp-content\/uploads\/2015\/01\/boehm06.txt\" target=\"_blank\">bib<\/a>]<\/p>\n<p>Abstract:<\/p>\n<p>Terrestrial laser scanners deliver a dense point-wise sampling of an object\u2019s surface. For many applications a surface-like reconstruction\u00a0is required. The most typical example is the visualization of the scanned data. Traditional approaches use meshing algorithms to\u00a0reconstruct and triangulate the surface represented by the points. Especially in cultural heritage, where complex objects with delicate\u00a0structures are recorded in highly detailed scans, this process is not without problems. Often long and tedious manual clean-up procedures\u00a0are required to achieve satisfactory results. After summarizing our experience with current meshing technology we therefore\u00a0explore alternative approaches for surface reconstruction. An alternative approach presented within this paper is point splatting. We\u00a0have developed an algorithm to compute a suitable surfel representation directly from the raw laser scanner data. This results in a\u00a0speedy and fully automated procedure for surface reconstruction. The properties of the different approaches for surface reconstruction\u00a0are discussed considering a practical example from the field of cultural heritage. The Panagia Kera in Kritsa near Agios Nikolaos on\u00a0the island of Crete was chosen as a suitable example.<\/p>\n<table align=\"center\">\n<tbody align=\"center\">\n<tr align=\"center\">\n<td align=\"center\" width=\"50%\"><a href=\"http:\/\/www.mpateraki.org\/wp-content\/uploads\/2015\/01\/BOEHM_640_1.bmp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-374 size-medium\" src=\"http:\/\/www.mpateraki.org\/wp-content\/uploads\/2015\/01\/BOEHM_640_1-300x138.bmp\" alt=\"\" width=\"300\" height=\"138\" srcset=\"https:\/\/mpateraki.org\/wp-content\/uploads\/2015\/01\/BOEHM_640_1-300x138.bmp 300w, https:\/\/mpateraki.org\/wp-content\/uploads\/2015\/01\/BOEHM_640_1-1024x471.bmp 1024w, https:\/\/mpateraki.org\/wp-content\/uploads\/2015\/01\/BOEHM_640_1.bmp 1030w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/td>\n<td align=\"center\" width=\"50%\"><a href=\"http:\/\/www.mpateraki.org\/wp-content\/uploads\/2015\/01\/BOEHM_640_2.bmp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-375 size-medium\" src=\"http:\/\/www.mpateraki.org\/wp-content\/uploads\/2015\/01\/BOEHM_640_2-300x244.bmp\" alt=\"\" width=\"300\" height=\"244\" srcset=\"https:\/\/mpateraki.org\/wp-content\/uploads\/2015\/01\/BOEHM_640_2-300x244.bmp 300w, https:\/\/mpateraki.org\/wp-content\/uploads\/2015\/01\/BOEHM_640_2.bmp 833w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Boehm J., Pateraki M., 2006. From point samples to surfaces \u2013 on meshing and alternatives. In: Proc. of the ISPRS Commission V Symposium Image Engineering and Vision Metrology, IAPRS, Vol. 37, Part B5. [pdf] [bib] Abstract: Terrestrial laser scanners deliver a dense point-wise sampling of an object\u2019s surface. For many applications a surface-like reconstruction\u00a0is required. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":375,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-372","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-publications"],"_links":{"self":[{"href":"https:\/\/mpateraki.org\/index.php?rest_route=\/wp\/v2\/posts\/372","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mpateraki.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mpateraki.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mpateraki.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mpateraki.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=372"}],"version-history":[{"count":1,"href":"https:\/\/mpateraki.org\/index.php?rest_route=\/wp\/v2\/posts\/372\/revisions"}],"predecessor-version":[{"id":376,"href":"https:\/\/mpateraki.org\/index.php?rest_route=\/wp\/v2\/posts\/372\/revisions\/376"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mpateraki.org\/index.php?rest_route=\/wp\/v2\/media\/375"}],"wp:attachment":[{"href":"https:\/\/mpateraki.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mpateraki.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mpateraki.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}