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Remote sensing and spatial data: the establishment and visualisation of 3D computer landscape models as basis for visual impact assessment / B. Koch in GIS Geo-Informations-Systeme, vol 2001 n° 12 (Dezember 2001)

Public [article]  inGIS Geo-Informations-Systeme > vol 2001 n° 12 (Dezember 2001) . - pp 41 - 48 Titre : Remote sensing and spatial data: the establishment and visualisation of 3D computer landscape models as basis for visual impact assessment Type de document : Article/Communication Auteurs : B. Koch, Auteur ; J. Harm, Auteur Année de publication : 2001 Article en page(s) : pp 41 - 48 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] appareil de restitution analytique [Termes IGN] données auxiliaires [Termes IGN] données localisées 3D [Termes IGN] instrumentation Zeiss [Termes IGN] ligne électrique [Termes IGN] MicroStation [Termes IGN] objet géographique [Termes IGN] paysage [Termes IGN] visibilité [Termes IGN] visualisation 3D Résumé : (Auteur) A research project at the department of Remote Sensing and Landscape Information Systems deals with the potential of 3D landscape models for the development of quantitative visual impact assessment parameters. The models were based on photogrammetric measurements from aerial photographs on one hand and auxiliary spatial data from different data pools on the other hand. The measurements were taken with an analytical plotter (ZEISS P3) which was connected to a CADprogramme (Bentley MicroStation). The measurements included the landsurface as well as surfaces of different forest stands, roads, single trees and houses. Objects close to the planned impacts (powerlines) were measured, the other objects were modelled based on auxiliary spatial data. The planned powerlines were also modelled with MicroStation. In contrast to photographic layout manipulations, this method is based on 3D data. That allows to visualise the impact on the landscape from each position within the model and to calculate quantitative parameters like sensitivity of the landscape, visibility of the impact, etc. on a solid 3D geometric basis. There were two categories of parameters derived from the model. The first was used to assess the sensitivity of the landscape to possible impacts. The other category is used to quantify the impact. Numéro de notice : A2001-214 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21908 [article]

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