Multi-level representation of terrain features on a contour map

Auteur(s): Guilbert, Eric
Résumé: Contour lines are important for quantitatively displaying relief and identifying morphometric features on a map. Contour trees are often used to represent spatial relationships between contours and assist the user in analysing the terrain. How- ever, automatic analysis from the contour tree is still limited as features identified on a map by sets of contours are not only characterised by local relationships be- tween contours but also by relationships with other features at different levels of representation. In this paper, a new method based on adjacency and inclusion re- lationships between regions defined by sets of contours is presented. The method extracts terrain features and stores them in a feature tree providing a description of the landscape at multiple levels of detail. The method is applied to terrain analysis and generalisation of a contour map by selecting the most relevant features accord- ing to the purpose of the map. Experimental results are presented and discussed.
Type de document: Article de recherche
Date de publication: 11 avril 2012
Date de la mise en libre accès: 13 octobre 2016
Version du document: AM
Lien permanent: http://hdl.handle.net/20.500.11794/11328
Ce document a été publié dans: GeoInformatica, Vol. 17 ( 2), 301–324 (2013)
https://doi.org/10.1007/s10707-012-0153-z
Springer
Autre version disponible: 10.1007/s10707-012-0153-z
Collection :Articles publiés dans des revues avec comité de lecture

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