Reference : Towards a normalised 3D Geovisualisation : the viewpoint management
Scientific congresses and symposiums : Paper published in a journal
Engineering, computing & technology : Architecture
Engineering, computing & technology : Computer science
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
Towards a normalised 3D Geovisualisation : the viewpoint management
[fr] Vers une standardisation de la Géovisualisation 3D : la gestion du point de vue
[de] Auf dem Weg zu einer normalisierten 3D-Geovisualisierung: das Management der Sichtweise
[nl] Op weg naar een genormaliseerd 3D Geovisualisation: het beheer van het gezichtspunt
[es] Hacia un normalizado 3D Geovisualización: la gestión de punto de vista
[it] Verso una normalizzato 3D Geovisualisation: la gestione punto di vista
Neuville, Romain mailto [Université de Liège > Département de géographie > Unité de Géomatique - Topographie et géométrologie >]
Poux, Florent mailto [Université de Liège > Département de géographie > Unité de Géomatique - Topographie et géométrologie >]
Hallot, Pierre mailto [Université de Liège > Département de géographie > Architecture Site Lambert Lombard >]
Billen, Roland mailto [Université de Liège > Département de géographie > Unité de Géomatique - Topographie et géométrologie >]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Copernicus Publications
11th 3D GeoInfo Conference
Yes (verified by ORBi)
du 18 octobre au 21 octobre 2016
Efi Dimopoulou
Peter Van Oosterom
[en] 3D geovisualisation ; 3D cartography, ; 3D semiotics ; camera management ; visual variables ; user’s query
[en] This paper deals with the viewpoint management in 3D environments considering an allocentric environment. The recent advances in computer sciences and the growing number of affordable remote sensors lead to impressive improvements in the 3D visualisation. Despite some research relating to the analysis of visual variables used in 3D environments, we notice that it lacks a real standardisation of 3D representation rules. In this paper we study the “viewpoint” as being the first considered parameter for a normalised visualisation of 3D data. Unlike in a 2D environment, the viewing direction is not only fixed in a top down direction in 3D. A non-optimal camera location means a poor 3D representation in terms of relayed information. Based on this statement we propose a model based on the analysis of the computational display pixels that determines a viewpoint maximising the relayed information according to one kind of query. We developed an OpenGL prototype working on screen pixels that allows to determine the optimal camera location based on a screen pixels colour algorithm. The viewpoint management constitutes a first step towards a normalised 3D geovisualisation.
Researchers ; Professionals ; Students ; General public

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