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ICDAR 1999, 5th International Conference on Document Analysis and Recognition 22/09/1999 22/09/1999 Bengalore Inde Proceedings IEEE
nom du congrès :
ICDAR 1999, 5th International Conference on Document Analysis and Recognition
début du congrès :
22/09/1999
fin du congrès :
22/09/1999
ville du congrès :
Bengalore
pays du congrès :
Inde
site des actes du congrès :
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Documents disponibles (1)
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Titre : DTM extraction from topographic maps Type de document : Article/Communication Auteurs : François Dupont , Auteur ; Marc Pierrot-Deseilligny
Editeur : New-York : IEEE Computer society Année de publication : 1999 Conférence : ICDAR 1999, 5th International Conference on Document Analysis and Recognition 22/09/1999 22/09/1999 Bengalore Inde Proceedings IEEE Importance : pp 475 - 478 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] carte numérisée
[Termes IGN] carte topographique
[Termes IGN] courbe de niveau
[Termes IGN] modèle numérique de terrainRésumé : (auteur) This paper deals with the automatic quotation of the contour lines extracted from a scanned paper map, in the way to create a DTM (digital terrain model). The great number of contour line interruptions, the connections between two (or more) contour lines and the low density of the elevation information contained on the map, make the quotation task very difficult. Our technique is based on the computation of an intermediate DTM from the global analysis of the main contour lines and the elevation dots. By using this intermediate DTM, we are able to estimate the contour line orientation (i.e. the slopeway), and then to quote the contour lines. By analyzing the trust on the orientation and the coherence of the quotation transitions, we select all the unsuspicious elevations and use them to create a new DTM. We assume that this new DTM is more precise than the intermediate DTM. So we can use, if necessary, this new DTM as a new intermediate DTM to repeat the process (orientation estimation and quotation). Numéro de notice : C1999-075 Affiliation des auteurs : MATIS+Ext (1993-2011) Thématique : IMAGERIE Nature : Communication DOI : 10.1109/ICDAR.1999.791828 Date de publication en ligne : 06/08/2002 En ligne : https://doi.org/10.1109/ICDAR.1999.791828 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=98612
