{"id":413,"date":"2013-03-22T14:46:23","date_gmt":"2013-03-22T14:46:23","guid":{"rendered":"http:\/\/69.195.124.91\/~airsensi\/2013\/03\/22\/rollercoster-english-test-2\/"},"modified":"2014-07-21T20:19:46","modified_gmt":"2014-07-21T20:19:46","slug":"rollercoster-english-test","status":"publish","type":"post","link":"https:\/\/airsensing.com\/fr\/rollercoster-english-test\/","title":{"rendered":"LIDAR"},"content":{"rendered":"<p><b>LIDAR<\/b><\/p>\n<p>\u00c0 l\u2019occasion d\u2019un r\u00e9cent essai hivernal, Airborne a install\u00e9 \u00e0 bord d\u2019un Piper Navajo \u00e9quip\u00e9 dune double baie un Lidar et un appareil photo num\u00e9rique afin de les comparer directement. \u00a0Comme nous sommes l\u2019une des rares entreprises d\u2019Am\u00e9rique du Nord \u00e0 poss\u00e9der un avion capable d\u2019accommoder simultan\u00e9ment deux appareils de grand format, nous avons r\u00e9solu de trancher le d\u00e9bat sur les m\u00e9rites respectifs du LIDAR et de la PHOTOGRAMM\u00c9TRIE MULTISPECTRALE.<\/p>\n<p><strong>Quelques observations pr\u00e9liminaires<\/strong><\/p>\n<p>Alors que, dans les zones de v\u00e9g\u00e9tation, le Lidar semble donner un meilleur rendu de la surface \u00ab\u00a0d\u00e9nud\u00e9e\u00a0\u00bb du sol que la mod\u00e9lisation num\u00e9rique de la surface par photogramm\u00e9trie, on ne constate entre la mod\u00e9lisation num\u00e9rique et le LIDAR qu\u2019une diff\u00e9rence de la valeur efficace de 1,5 pixel sur les surfaces dures (soit environ 6 cm \u00e0 cette \u00e9chelle). M\u00eame si ces deux genres de surface \u00e9taient repr\u00e9sent\u00e9es avec la m\u00eame pr\u00e9cision, la photogramm\u00e9trie traditionnelle permet malgr\u00e9 tout d\u2019obtenir la repr\u00e9sentation la plus fid\u00e8le du terrain si l\u2019on consid\u00e8re des caract\u00e9ristiques telles des murets ou des surfaces dures \u00e0 forte pente.<\/p>\n<p>M\u00eame si nous avons d\u00fb nous emmitoufler chaudement pour affronter le froid, ces vols ont constitu\u00e9 une belle aventure et une magnifique occasion d\u2019\u00e9tayer au moyen de v\u00e9ritables donn\u00e9es le rendement comparatif de ces deux technologies.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-410\" src=\"http:\/\/69.195.124.91\/~airsensi\/wp-content\/uploads\/2013\/03\/testrollercoster_main.jpg\" alt=\"testrollercoster_main\" width=\"760\" height=\"760\" srcset=\"https:\/\/airsensing.com\/wp-content\/uploads\/2013\/03\/testrollercoster_main.jpg 760w, https:\/\/airsensing.com\/wp-content\/uploads\/2013\/03\/testrollercoster_main-150x150.jpg 150w, https:\/\/airsensing.com\/wp-content\/uploads\/2013\/03\/testrollercoster_main-300x300.jpg 300w\" sizes=\"auto, (max-width: 760px) 100vw, 760px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>LIDAR \u00c0 l\u2019occasion d\u2019un r\u00e9cent essai hivernal, Airborne a install\u00e9 \u00e0 bord d\u2019un Piper Navajo \u00e9quip\u00e9 dune double baie un Lidar et un appareil photo num\u00e9rique afin de les comparer directement. \u00a0Comme nous sommes l\u2019une des rares entreprises d\u2019Am\u00e9rique du Nord \u00e0 poss\u00e9der un avion&hellip;<\/p>\n","protected":false},"author":1,"featured_media":1054,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[],"tags":[],"class_list":["post-413","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/posts\/413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/comments?post=413"}],"version-history":[{"count":4,"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/posts\/413\/revisions"}],"predecessor-version":[{"id":1416,"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/posts\/413\/revisions\/1416"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/media\/1054"}],"wp:attachment":[{"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/media?parent=413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/categories?post=413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/airsensing.com\/fr\/wp-json\/wp\/v2\/tags?post=413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}