Urban environment modelling by fusion of a cadastral map and a digital elevation model
Identifieur interne : 000C15 ( PascalFrancis/Corpus ); précédent : 000C14; suivant : 000C16Urban environment modelling by fusion of a cadastral map and a digital elevation model
Auteurs : P. Dosch ; G. MasiniSource :
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
This paper describes a method to automatically construct a 3D geometric model of an urban area by merging features extracted from a cadastral map of the area and from the corresponding digital elevation model (DEM). The cadastral map and the DEM are both transformed into two sets of contour segments: The segments extracted from the map represent contours of buildings and blocks of buildings, whereas the segments extracted from the DEM represent the external edges of blocks of buildings (edges of buildings are generally missed because buildings of a same block often have the same height). The fusion of these two sets takes two main steps. The DEM segments are first matched with map segments by pruning a correspondence graph using a maximal clique technique. The result gives the 3D structure of the blocks of buildings. The remaining map segments, i.e. those which have no correspondent in the DEM, represent the contours of the buildings inside the blocks. The elevation of such a segment can then be estimated from the previously matched segments with which it is connected in the 3D structure. Some results and perspectives are presented as a conclusion.
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NO : | PASCAL 98-0079956 INIST |
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ET : | Urban environment modelling by fusion of a cadastral map and a digital elevation model |
AU : | DOSCH (P.); MASINI (G.); FRYDRYCH (Michael); PARKKINENE (Jussi); VISA (Ari) |
AF : | INRIA Lorraine - CRIN/CNRS, 615, rue du jardin botanique B.P. 101/54602 Villers-lès-Nancy/France (1 aut., 2 aut.) |
DT : | Congrès; Niveau analytique |
SO : | Scandinavian conference on image analysis/10/1997-06-09/Lappeeranta FIN; Finlande; Lappeeranta: Pattern Recognition Society; Da. 1997; Pp. 431-437; ISBN 951-764-145-1 |
LA : | Anglais |
EA : | This paper describes a method to automatically construct a 3D geometric model of an urban area by merging features extracted from a cadastral map of the area and from the corresponding digital elevation model (DEM). The cadastral map and the DEM are both transformed into two sets of contour segments: The segments extracted from the map represent contours of buildings and blocks of buildings, whereas the segments extracted from the DEM represent the external edges of blocks of buildings (edges of buildings are generally missed because buildings of a same block often have the same height). The fusion of these two sets takes two main steps. The DEM segments are first matched with map segments by pruning a correspondence graph using a maximal clique technique. The result gives the 3D structure of the blocks of buildings. The remaining map segments, i.e. those which have no correspondent in the DEM, represent the contours of the buildings inside the blocks. The elevation of such a segment can then be estimated from the previously matched segments with which it is connected in the 3D structure. Some results and perspectives are presented as a conclusion. |
CC : | 001D02C03 |
FD : | Simulation numérique; Traitement image; Reconnaissance forme; Reconstruction surface; Carte cadastrale |
ED : | Numerical simulation; Image processing; Pattern recognition; Surface reconstruction; Cadastral map |
GD : | Bildverarbeitung; Mustererkennung |
SD : | Simulación numérica; Procesamiento imagen; Reconocimiento patrón; Reconstrucción superficie; Mapa catastral |
LO : | INIST-Y 31653.354000068107910580 |
ID : | 98-0079956 |
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Pascal:98-0079956Le document en format XML
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<front><div type="abstract" xml:lang="en">This paper describes a method to automatically construct a 3D geometric model of an urban area by merging features extracted from a cadastral map of the area and from the corresponding digital elevation model (DEM). The cadastral map and the DEM are both transformed into two sets of contour segments: The segments extracted from the map represent contours of buildings and blocks of buildings, whereas the segments extracted from the DEM represent the external edges of blocks of buildings (edges of buildings are generally missed because buildings of a same block often have the same height). The fusion of these two sets takes two main steps. The DEM segments are first matched with map segments by pruning a correspondence graph using a maximal clique technique. The result gives the 3D structure of the blocks of buildings. The remaining map segments, i.e. those which have no correspondent in the DEM, represent the contours of the buildings inside the blocks. The elevation of such a segment can then be estimated from the previously matched segments with which it is connected in the 3D structure. Some results and perspectives are presented as a conclusion.</div>
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<ET>Urban environment modelling by fusion of a cadastral map and a digital elevation model</ET>
<AU>DOSCH (P.); MASINI (G.); FRYDRYCH (Michael); PARKKINENE (Jussi); VISA (Ari)</AU>
<AF>INRIA Lorraine - CRIN/CNRS, 615, rue du jardin botanique B.P. 101/54602 Villers-lès-Nancy/France (1 aut., 2 aut.)</AF>
<DT>Congrès; Niveau analytique</DT>
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<EA>This paper describes a method to automatically construct a 3D geometric model of an urban area by merging features extracted from a cadastral map of the area and from the corresponding digital elevation model (DEM). The cadastral map and the DEM are both transformed into two sets of contour segments: The segments extracted from the map represent contours of buildings and blocks of buildings, whereas the segments extracted from the DEM represent the external edges of blocks of buildings (edges of buildings are generally missed because buildings of a same block often have the same height). The fusion of these two sets takes two main steps. The DEM segments are first matched with map segments by pruning a correspondence graph using a maximal clique technique. The result gives the 3D structure of the blocks of buildings. The remaining map segments, i.e. those which have no correspondent in the DEM, represent the contours of the buildings inside the blocks. The elevation of such a segment can then be estimated from the previously matched segments with which it is connected in the 3D structure. Some results and perspectives are presented as a conclusion.</EA>
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