{"id":3725,"date":"2022-12-12T22:13:46","date_gmt":"2022-12-12T21:13:46","guid":{"rendered":"https:\/\/topo4d.be\/la-photogrammetrie-en-topographie\/"},"modified":"2026-07-17T10:14:55","modified_gmt":"2026-07-17T08:14:55","slug":"la-photogrammetrie-en-topographie","status":"publish","type":"post","link":"https:\/\/topo4d.be\/fr\/la-photogrammetrie-en-topographie\/","title":{"rendered":"La photogramm\u00e9trie en topographie"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3725\" class=\"elementor elementor-3725 elementor-2518\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7290723 e-flex e-con-boxed e-con e-parent\" data-id=\"7290723\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7c8de42 elementor-widget elementor-widget-heading\" data-id=\"7c8de42\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">La photogramm\u00e9trie en topographie<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b5e5285 e-flex e-con-boxed e-con e-parent\" data-id=\"b5e5285\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-91f6139 e-grid e-con-full e-con e-child\" data-id=\"91f6139\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d520abd elementor-widget elementor-widget-image\" data-id=\"d520abd\" 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=\"502\" src=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/Schermafbeelding-2021-03-30-120845-1024x502.png\" class=\"attachment-large size-large wp-image-3727\" alt=\"\" srcset=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/Schermafbeelding-2021-03-30-120845-1024x502.png 1024w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/Schermafbeelding-2021-03-30-120845-300x147.png 300w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/Schermafbeelding-2021-03-30-120845-768x377.png 768w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/Schermafbeelding-2021-03-30-120845-1536x753.png 1536w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/Schermafbeelding-2021-03-30-120845.png 1582w\" 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-067ef1c elementor-widget elementor-widget-image\" data-id=\"067ef1c\" 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 decoding=\"async\" width=\"1024\" height=\"554\" src=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/hoogtes-1024x554.jpg\" class=\"attachment-large size-large wp-image-3728\" alt=\"\" srcset=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/hoogtes-1024x554.jpg 1024w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/hoogtes-300x162.jpg 300w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/hoogtes-768x416.jpg 768w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/hoogtes.jpg 1508w\" 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-4deb74d elementor-widget elementor-widget-image\" data-id=\"4deb74d\" data-element_type=\"widget\" data-e-type=\"widget\" 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class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"723\" src=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/image-2.png\" class=\"attachment-large size-large wp-image-3726\" alt=\"\" srcset=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/image-2.png 810w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/image-2-300x268.png 300w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/image-2-768x686.png 768w\" sizes=\"(max-width: 810px) 100vw, 810px\" \/>\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-c240344 elementor-widget elementor-widget-image\" data-id=\"c240344\" 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 loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"881\" 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src=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/P1470004-002-scaled-1-1024x683.jpg\" class=\"attachment-large size-large wp-image-3732\" alt=\"\" srcset=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/P1470004-002-scaled-1-1024x683.jpg 1024w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/P1470004-002-scaled-1-300x200.jpg 300w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/P1470004-002-scaled-1-768x512.jpg 768w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/P1470004-002-scaled-1-1536x1024.jpg 1536w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/P1470004-002-scaled-1-2048x1366.jpg 2048w\" 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-be3edb4 elementor-widget elementor-widget-image\" data-id=\"be3edb4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div 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width=\"745\" height=\"843\" src=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/m300-rtk.jpg\" class=\"attachment-large size-large wp-image-3734\" alt=\"\" srcset=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/m300-rtk.jpg 745w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/m300-rtk-265x300.jpg 265w\" sizes=\"(max-width: 745px) 100vw, 745px\" \/>\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-2068d17 elementor-widget elementor-widget-image\" data-id=\"2068d17\" 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 loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/digital-twin-cad-erfgoed-gevel-landmeter-scan-drone-3d-1024x1024.png\" class=\"attachment-large size-large wp-image-3735\" alt=\"\" srcset=\"https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/digital-twin-cad-erfgoed-gevel-landmeter-scan-drone-3d-1024x1024.png 1024w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/digital-twin-cad-erfgoed-gevel-landmeter-scan-drone-3d-300x300.png 300w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/digital-twin-cad-erfgoed-gevel-landmeter-scan-drone-3d-150x150.png 150w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/digital-twin-cad-erfgoed-gevel-landmeter-scan-drone-3d-768x768.png 768w, https:\/\/topo4d.be\/wp-content\/uploads\/2026\/01\/digital-twin-cad-erfgoed-gevel-landmeter-scan-drone-3d.png 1080w\" 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>\n\t\t\t\t<div class=\"elementor-element elementor-element-f941fca elementor-widget elementor-widget-text-editor\" data-id=\"f941fca\" 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>La photogramm\u00e9trie est une technique de mesure <strong>utilisant des photographies pour calculer des distances, des volumes et des formes<\/strong>. En combinant des images prises sous diff\u00e9rents angles, on obtient des cartes 2D et des mod\u00e8les 3D pr\u00e9cis de terrains, de b\u00e2timents et de structures. <\/p><p>Dans le domaine de la topographie, la photogramm\u00e9trie est souvent utilis\u00e9e pour cartographier de <strong>vastes zones de mani\u00e8re rapide et efficace<\/strong>, avec un niveau de d\u00e9tail qui n\u2019\u00e9tait auparavant r\u00e9alisable que par un travail de terrain intensif.<\/p><h2>Qu\u2019est-ce que la photogramm\u00e9trie ?<\/h2><p>La photogramm\u00e9trie utilise des cam\u00e9ras, souvent mont\u00e9es sur des drones, pour collecter des images redondantes. Ces images sont ensuite trait\u00e9es par logiciel pour devenir des ensembles de donn\u00e9es mesurables, tels que : <\/p><ul><li>des orthophotos \u00e0 l\u2019\u00e9chelle<\/li><li>des nuages de points 3D<\/li><li>des mod\u00e8les num\u00e9riques de terrain et d\u2019\u00e9l\u00e9vation<\/li><\/ul><p>\u26a0\ufe0f Important : la photogramm\u00e9trie fonctionne <strong>au-dessus de la surface de l\u2019eau<\/strong>.<br\/>Pour les mesures <strong>sous l\u2019eau<\/strong>, on utilise la <a href=\"https:\/\/topo4d.be\/fr\/bathymetrie\/\"><strong>bathym\u00e9trie<\/strong><\/a>, une autre technique de mesure par sonar.<\/p><h2>La valeur ajout\u00e9e de la photogramm\u00e9trie<\/h2><h4>Pr\u00e9cision et d\u00e9tail<\/h4><p>La photogramm\u00e9trie fournit des donn\u00e9es de mesure tr\u00e8s d\u00e9taill\u00e9es, adapt\u00e9es \u00e0 l\u2019analyse, \u00e0 la conception et au suivi. Les formes complexes et les zones difficiles d\u2019acc\u00e8s sont int\u00e9gralement relev\u00e9es. <\/p><h4>Efficacit\u00e9 et rapidit\u00e9<\/h4><p>De grands terrains ou chantiers peuvent \u00eatre mesur\u00e9s en peu de temps, ce qui limite le temps pass\u00e9 sur place et permet aux projets d\u2019avancer plus rapidement.<\/p><h4>Applications polyvalentes<\/h4><p>La photogramm\u00e9trie est notamment utilis\u00e9e pour les <a href=\"https:\/\/topo4d.be\/fr\/leve-par-drone\/\">lev\u00e9s de terrain<\/a>, les calculs de volumes, le suivi de chantier, les relev\u00e9s de fa\u00e7ades, la cartographie et les applications urbanistiques.<\/p><h4>Respect de l\u2019environnement<\/h4><p>La m\u00e9thode est non invasive et id\u00e9ale pour les zones \u00e9cologiquement sensibles, car les perturbations physiques sont r\u00e9duites au minimum.<\/p><h2>Photogramm\u00e9trie versus autres techniques de mesure<\/h2><p>La photogramm\u00e9trie n\u2019est <strong>pas toujours la meilleure solution<\/strong>. Selon le projet, une autre technique peut s\u2019av\u00e9rer plus appropri\u00e9e : <\/p><ul><li><strong>Bathym\u00e9trie<\/strong> \u2192 pour les mesures de fonds sous-marins<\/li><li><a href=\"https:\/\/topo4d.be\/fr\/balayage-laser-3d\/\"><strong>Scan laser 3D<\/strong><\/a> \u2192 pour une haute pr\u00e9cision en int\u00e9rieur ou pour des structures complexes<\/li><li><a href=\"https:\/\/topo4d.be\/fr\/geometre-expert\/\"><strong>Topographie classique<\/strong><\/a> \u2192 pour la d\u00e9limitation juridique des fronti\u00e8res<\/li><\/ul><p>En pratique, ces techniques sont <strong>souvent combin\u00e9es<\/strong>.<\/p><h2>Applications typiques de la photogramm\u00e9trie<\/h2><ul><li>D\u00e9termination du volume de stocks et de terrassements<\/li><li>Relev\u00e9s de fa\u00e7ades sans \u00e9chafaudage<\/li><li>Planification urbaine et cartographie<\/li><li>Surveillance d\u2019infrastructures telles que les ponts et les routes<\/li><li>Documentation du patrimoine et des sites arch\u00e9ologiques<\/li><\/ul><h2>La photogramm\u00e9trie en pratique<\/h2><p>La photogramm\u00e9trie fournit des donn\u00e9es de mesure brutes qui sont ensuite transform\u00e9es en <strong>r\u00e9sultats exploitables<\/strong>. La qualit\u00e9 du r\u00e9sultat final d\u00e9pend non seulement des images, mais aussi de : <\/p><ul><li>la planification du vol<\/li><li>le recouvrement et la r\u00e9solution<\/li><li>les points de contr\u00f4le au sol (GCP)<\/li><li>le traitement et l\u2019interpr\u00e9tation<\/li><\/ul><p>C\u2019est pourquoi, en topographie, la photogramm\u00e9trie est bien plus qu\u2019un simple \u00ab vol de drone \u00bb.<\/p><h2>En savoir plus ?<\/h2><p>Vous souhaitez savoir si la photogramm\u00e9trie est adapt\u00e9e \u00e0 votre projet, ou si une autre m\u00e9thode de mesure conviendrait mieux ?<br>N\u2019h\u00e9sitez pas \u00e0 nous contacter pour plus d\u2019explications ou des conseils.<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1e3ecff e-flex e-con-boxed e-con e-parent\" data-id=\"1e3ecff\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7a19d23 elementor-mobile-align-center elementor-widget elementor-widget-button\" data-id=\"7a19d23\" 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 elementor-animation-shrink\" href=\"https:\/\/topo4d.be\/fr\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-caret-right\" viewBox=\"0 0 192 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M0 384.662V127.338c0-17.818 21.543-26.741 34.142-14.142l128.662 128.662c7.81 7.81 7.81 20.474 0 28.284L34.142 398.804C21.543 411.404 0 402.48 0 384.662z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contactez-nous ! <\/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\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>La photogramm\u00e9trie est une technique de mesure o\u00f9 des drones et des photos sont utilis\u00e9s pour cr\u00e9er des cartes et des mod\u00e8les 3D pr\u00e9cis. D\u00e9couvrez quand cette m\u00e9thode est appropri\u00e9e et quelles en sont les limites. <\/p>\n","protected":false},"author":1,"featured_media":3726,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[60],"tags":[],"class_list":["post-3725","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-base-de-connaissances"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>La photogramm\u00e9trie en topographie : fonctionnement, applications et avantages<\/title>\n<meta name=\"description\" content=\"La photogramm\u00e9trie est une technique de mesure utilisant des drones et des cam\u00e9ras pour cr\u00e9er des mod\u00e8les 3D et des cartes pr\u00e9cis. 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