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High-quality DTMs: combining laser scanning, digital photogrammetry and ground survey / P. Reiss in GIM international, vol 16 n° 11 (November 2002)

Public [article]  inGIM international > vol 16 n° 11 (November 2002) . - pp 40 - 43 Titre : High-quality DTMs: combining laser scanning, digital photogrammetry and ground survey Type de document : Article/Communication Auteurs : P. Reiss, Auteur Année de publication : 2002 Article en page(s) : pp 40 - 43 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] Bavière (Allemagne) [Termes IGN] Bayerisches Landesvermessungsamt [Termes IGN] données de terrain [Termes IGN] données lidar [Termes IGN] filtre numérique [Termes IGN] modèle numérique de terrain [Termes IGN] qualité des données [Termes IGN] réalité de terrain [Termes IGN] station de travail de photogrammétrie numérique Résumé : (Editeur) Photogrammetry is an efficient technique for mapping the topography of larger areas. However, areas such as coniferous forests, housing and flat terrain in open fields have to be completed by tedious and time-consuming ground surveys. The author incorporated laser scanning (LiDAR) to diminish the amount of ground work. LiDAR is the only technique which enables more or less automatic and accurate collection of terrain data over bare ground, even within forests. LIDAR reduces the percentage of areas to be completed by ground surveys from forty to less than ten. Photogrammetric stereo-compilation was also reduced. This led to an increase in throughput by a factor of four to five. However, these figures do not represent all that may eventually be achieved. Copyright GITC Numéro de notice : A2002-331 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22242 [article]

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