Article (Scientific journals)
3D Viewpoint Management and Navigation in Urban Planning: Application to the Exploratory Phase
Neuville, Romain; Pouliot, Jacynthe; Poux, Florent et al.
2019In Remote Sensing, 11 (3), p. 236
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Keywords :
3D geovisualization; Visualization pipeline; 3D geospatial data; Virtual 3D city model; Viewpoint; Occlusion; Camera; Urban planning; Planning activities; Urban indicators
Abstract :
[en] 3D geovisualization is essential in urban planning as it assists the analysis of geospatial data and decision making in the design and development of land use and built environment. However, we noted that 3D geospatial models are commonly visualized arbitrarily as current 3D viewers often lack of design instructions to assist end users. This is especially the case for the occlusion management in most 3D environments where the high density and diversity of 3D data to be displayed require efficient visualization techniques for extracting all the geoinformation. In this paper, we propose a theoretical and operational solution to manage occlusion by automatically computing best viewpoints. Based on user’s parameters, a viewpoint management algorithm initially calculates optimal camera settings for visualizing a set of 3D objects of interest through parallel projections. Precomputed points of view are then integrated into a flythrough creation algorithm for producing an automatic navigation within the 3D geospatial model. The algorithm’s usability is illustrated within the scope of a fictive exploratory phase for the public transport services access in the European quarter of Brussels. Eventually, the proposed algorithms may also assist additional urban planning phases in achieving their purposes.
Disciplines :
Computer science
Earth sciences & physical geography
Author, co-author :
Neuville, Romain ;  Université de Liège - ULiège > Département de géographie > Unité de Géomatique - Topographie et géométrologie
Pouliot, Jacynthe;  Université Laval > Département des sciences géomatiques
Poux, Florent  ;  Université de Liège - ULiège > Département de géographie > Unité de Géomatique - Topographie et géométrologie
Billen, Roland  ;  Université de Liège - ULiège > Département de géographie > Unité de Géomatique - Topographie et géométrologie
Language :
English
Title :
3D Viewpoint Management and Navigation in Urban Planning: Application to the Exploratory Phase
Alternative titles :
[en] Gestion tridimensionnelle du point de vue et de la navigation au sein de la planification urbaine: Application à la phase exploratoire
Publication date :
23 January 2019
Journal title :
Remote Sensing
eISSN :
2072-4292
Publisher :
MDPI, Basel, Switzerland
Special issue title :
Remote Sensing-Based Urban Planning Indicators
Volume :
11
Issue :
3
Pages :
236
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 24 January 2019

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