{"id":10126,"date":"2020-02-18T11:29:29","date_gmt":"2020-02-18T10:29:29","guid":{"rendered":"https:\/\/www.yellowscan.com\/knowledge\/mythe-urbain-lidar-et-photogrammetrie-sont-redondants\/"},"modified":"2023-10-11T12:15:38","modified_gmt":"2023-10-11T10:15:38","slug":"urban-myth-lidar-and-photogrammetry-are-redundant","status":"publish","type":"ys_knowledge","link":"https:\/\/www.yellowscan.com\/fr\/knowledge\/urban-myth-lidar-and-photogrammetry-are-redundant\/","title":{"rendered":"LiDAR et photogramm\u00e9trie : Une comparaison d\u00e9taill\u00e9e"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"10126\" class=\"elementor elementor-10126 elementor-1123\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3fb7f3b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3fb7f3b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bb27bc5\" data-id=\"bb27bc5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e22effa elementor-widget elementor-widget-text-editor\" data-id=\"e22effa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Lorsqu&rsquo;il s&rsquo;agit de capturer des nuages de points, il ne s&rsquo;agit pas d&rsquo;opposer LiDAR et photogramm\u00e9trie, car les deux ont leurs avantages et leurs inconv\u00e9nients.<\/h2>\n<p>Il s&rsquo;agit en fait de d\u00e9terminer la m\u00e9thode la plus adapt\u00e9e \u00e0 votre application particuli\u00e8re.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-54cdb7b8 el-section-img-x1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"54cdb7b8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-711d3a23\" data-id=\"711d3a23\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-858e0e8 elementor-widget elementor-widget-image\" data-id=\"858e0e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.yellowscan.com\/wp-content\/uploads\/2022\/08\/Using-uav-lidar-for-archaeology-min-1024x576.jpg\" class=\"attachment-large size-large wp-image-1130\" alt=\"\" srcset=\"https:\/\/www.yellowscan.com\/wp-content\/uploads\/2022\/08\/Using-uav-lidar-for-archaeology-min-1024x576.jpg 1024w, https:\/\/www.yellowscan.com\/wp-content\/uploads\/2022\/08\/Using-uav-lidar-for-archaeology-min-300x169.jpg 300w, https:\/\/www.yellowscan.com\/wp-content\/uploads\/2022\/08\/Using-uav-lidar-for-archaeology-min-768x432.jpg 768w, https:\/\/www.yellowscan.com\/wp-content\/uploads\/2022\/08\/Using-uav-lidar-for-archaeology-min.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3a593712 el-img-caption elementor-widget elementor-widget-text-editor\" data-id=\"3a593712\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\">Les nuages de points LiDAR de YellowScan aident les arch\u00e9ologues \u00e0 cartographier la couverture foresti\u00e8re dense.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b6521a9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b6521a9\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-71efcb0\" data-id=\"71efcb0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0a3d847 elementor-widget elementor-widget-text-editor\" data-id=\"0a3d847\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le LiDAR et la photogramm\u00e9trie peuvent bien entendu \u00eatre appliqu\u00e9s \u00e0 l&rsquo;examen des types et des couches de sol. Le LiDAR et la photogramm\u00e9trie sont \u00e9galement tr\u00e8s utiles aux arch\u00e9ologues qui doivent analyser les structures et l&rsquo;agencement d&rsquo;un site ancien. Il est vrai que les <strong>donn\u00e9es LiDAR n\u00e9cessitent moins de temps de capture et de traitement<\/strong>. Le LiDAR a \u00e9galement tendance \u00e0 produire un nuage de points plus net et plus facile \u00e0 exploiter. <b>Voici une analyse des avantages et des inconv\u00e9nients du LiDAR et de la photogramm\u00e9trie :<\/b><\/p>\n<h2> <\/h2>\n<h2>En quoi le LiDAR diff\u00e8re-t-il de la photogramm\u00e9trie ?<\/h2>\n<h3>Avantages du LiDAR :<\/h3>\n<ul>\n<li>Retours multiples<\/li>\n<li>Traitement rapide<\/li>\n<li>Visualisation en direct<\/li>\n<li>Informations sur chaque point<\/li>\n<li>Intensit\u00e9<\/li>\n<li>G\u00e9or\u00e9f\u00e9rencement direct<\/li>\n<li>Reconstitution d&rsquo;objets complexes et irr\u00e9guliers, par exemple la v\u00e9g\u00e9tation et les lignes \u00e9lectriques<\/li>\n<\/ul>\n<h3>Inconv\u00e9nients du LiDAR :<\/h3>\n<ul>\n<li>Interpr\u00e9tation plus dure<\/li>\n<li>Charges utiles plus lourdes<\/li>\n<li>R\u00e9putation difficile \u00e0 g\u00e9rer<\/li>\n<\/ul>\n<h2> <\/h2>\n<h2>Quelle est la diff\u00e9rence avec la photogramm\u00e9trie ?<\/h2>\n<h3>Avantages de la photogramm\u00e9trie :<\/h3>\n<ul>\n<li>Nuages de points plus denses<\/li>\n<li>Facile \u00e0 utiliser, facile \u00e0 traiter<\/li>\n<li>Facile \u00e0 comprendre sur le plan humain<\/li>\n<li>Informations RVB naturelles<\/li>\n<li>l\u00e9ger, petit porteur<\/li>\n<\/ul>\n<h3>Inconv\u00e9nients de la photogramm\u00e9trie :<\/h3>\n<ul>\n<li>Exigences en mati\u00e8re de puissance de calcul<\/li>\n<li>Sensible \u00e0 l&rsquo;\u00e9clairage (capteur passif)<\/li>\n<li>N\u00e9cessite des lignes de vol \u00e9troites pour garantir un chevauchement lat\u00e9ral suffisant des images<\/li>\n<li>N\u00e9cessit\u00e9 d&rsquo;une texture riche dans les images &#8211; les surfaces homog\u00e8nes (surfaces sans caract\u00e9ristiques\/couleurs monochromatiques) ne peuvent pas \u00eatre reconstruites en 3D avec une grande pr\u00e9cision.<\/li>\n<\/ul>\n<p>Lorsqu&rsquo;il s&rsquo;agit de comparer le LiDAR et la photogramm\u00e9trie, les deux solutions ont des capacit\u00e9s uniques, mais vous disposez de deux moyens parmi d&rsquo;autres pour atteindre un objectif. Nous pensons qu&rsquo;il est pr\u00e9f\u00e9rable de travailler main dans la main, et YellowScan propose une double solution.<\/p>\n<h2> <\/h2>\n<h2>Combiner LiDAR et photogramm\u00e9trie<\/h2>\n<ul>\n<li>\n<p><strong>Ajouter des informations RVB pour enrichir les donn\u00e9es LiDAR<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>L&rsquo;interpr\u00e9tation des photos dans les nuages de points laser permet d&rsquo;\u00e9viter les erreurs<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>Double collecte en un seul vol, m\u00e9thode optimale de collecte des donn\u00e9es<\/strong><\/p>\n<\/li>\n<\/ul>\n<p>C&rsquo;est la meilleure fa\u00e7on de collecter des donn\u00e9es. En savoir plus sur la <a style=\"font-weight: var( --e-global-typography-text-font-weight );\" href=\"https:\/\/www.yellowscan.com\/fr\/knowledge\/how-does-lidar-work\/\" target=\"_blank\" rel=\"noopener\">technologie LiDAR <\/a>ou d\u00e9couvrir nos <a href=\"https:\/\/www.yellowscan.com\/fr\/products\/\" target=\"_blank\" rel=\"noopener\">produits LiDAR<\/a>.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d2572a5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d2572a5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3945d5f\" data-id=\"3945d5f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-64cb510 elementor-widget elementor-widget-text-editor\" data-id=\"64cb510\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>NB : Auteurs Thibaud Capra, Jordan Robert<\/em><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2be022b4 el-cta elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2be022b4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2cf61dc7\" data-id=\"2cf61dc7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-7f54c650 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7f54c650\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-45c2a831\" data-id=\"45c2a831\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4bfdc906 elementor-widget elementor-widget-text-editor\" data-id=\"4bfdc906\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>D\u00e9couvrez nos solutions UAV LiDAR<\/h4>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-35ee32d9\" data-id=\"35ee32d9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2cd38435 elementor-button-success elementor-widget elementor-widget-button\" data-id=\"2cd38435\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.yellowscan.com\/fr\/products\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">En savoir plus<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"featured_media":14210,"menu_order":341,"template":"","meta":{"_acf_changed":false,"content-type":""},"categories":[29],"class_list":["post-10126","ys_knowledge","type-ys_knowledge","status-publish","has-post-thumbnail","hentry","category-article"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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