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Termes IGN > sciences naturelles > physique > traitement d'image > photogrammétrie > photogrammétrie numérique > modèle numérique de surface
modèle numérique de surfaceSynonyme(s)modèle numérique d'élévation ;modèle numérique d'altitude ;MNE ;MNA ;DEM MNSVoir aussi |
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An efficient stochastic approach for building footprint extraction from digital elevation models / Olivier Tournaire in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 4 (July - August 2010)
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[article]
Titre : An efficient stochastic approach for building footprint extraction from digital elevation models Type de document : Article/Communication Auteurs : Olivier Tournaire , Auteur ; Didier Boldo
, Auteur ; Mélanie Durupt, Auteur ; Mathieu Brédif
, Auteur
Année de publication : 2010 Article en page(s) : 11 p. ; pp 317 - 327 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] chaîne de Markov
[Termes IGN] détection du bâti
[Termes IGN] efficacité
[Termes IGN] empreinte
[Termes IGN] méthode de Monte-Carlo
[Termes IGN] milieu urbain
[Termes IGN] modèle numérique de surfaceRésumé : (Auteur) In the past two decades, building detection and reconstruction from remotely sensed data has been an active research topic in the photogrammetric and remote sensing communities. Recently, effective high level approaches have been developed, i.e., the ones involving the minimization of an energetic formulation. Yet, their efficiency has to be balanced by the amount of processing power required to obtain good results. In this paper, we introduce an original energetic model for building footprint extraction from high resolution digital elevation models (?1 m) in urban areas. Our goal is to formulate the energy in an efficient way, easy to parametrize and fast to compute, in order to get an effective process still providing good results. Our work is based on stochastic geometry, and in particular on marked point processes of rectangles. We therefore try to obtain a reliable object configuration described by a collection of rectangular building footprints. To do so, an energy function made up of two terms is defined: the first term measures the adequacy of the objects with respect to the data and the second one has the ability to favour or penalize some footprint configurations based on prior knowledge (alignment, overlapping,...). To minimize the global energy, we use a Reversible Jump Monte Carlo Markov Chain (RJMCMC) sampler coupled with a simulated annealing algorithm, leading to an optimal configuration of objects. Various results from different areas and resolutions are presented and evaluated. Our work is also compared with an already existing methodology based on the same mathematical framework that uses a much more complex energy function. We show how we obtain similarly good results with a high computational efficiency (between 50 and 100 times faster) using a simplified energy that requires a single data-independent parameter, compared to more than 20 inter-related and hard-to-tune parameters. Numéro de notice : A2010-294 Affiliation des auteurs : IGN (1940-2011) Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2010.02.002 Date de publication en ligne : 12/03/2010 En ligne : https://doi.org/10.1016/j.isprsjprs.2010.02.002 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30488
in ISPRS Journal of photogrammetry and remote sensing > vol 65 n° 4 (July - August 2010) . - 11 p. ; pp 317 - 327[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2010041 SL Revue Centre de documentation Revues en salle Disponible Vertical accuracy of digital elevation model from Shuttle Radar Topographic Mission: a case study / Ashu Sharma in Geocarto international, vol 25 n° 4 (July 2010)
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Titre : Vertical accuracy of digital elevation model from Shuttle Radar Topographic Mission: a case study Type de document : Article/Communication Auteurs : Ashu Sharma, Auteur ; K. Tiwari, Auteur ; P. Bhadoria, Auteur Année de publication : 2010 Article en page(s) : pp 257 - 267 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] erreur en altitude
[Termes IGN] erreur moyenne quadratique
[Termes IGN] image radar moirée
[Termes IGN] MNS SRTM
[Termes IGN] modèle numérique de surface
[Termes IGN] précision altimétriqueRésumé : (Auteur) Vertical accuracy of the processed Shuttle Radar Topographic Mission (SRTM) digital elevation model (DEM) was evaluated using spot height as well as reference DEM. Terrain dependency of error was also explored in relation to elevation, slope and aspect of the terrain. The positive mean error (6.77 + 1.79 m) indicated that the SRTM DEM was slightly underestimating the elevation and this pattern gradually increases towards higher elevation. The observed root mean square error (RMSE) (27.58 + 4.22 m) for the region do not fulfill the 16 m RMSE specification of the SRTM mission. High magnitude errors are typical to steep slope (due to overestimation) and in stream valley (due to underestimation). The magnitude of residuals for NW, W and SW facing slope was smaller as compared to their complementary angle. Results also indicated a S and NE components in SRTM DEM because of underestimation and overestimation of elevation, respectively. Numéro de notice : A2010-276 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040903302931 Date de publication en ligne : 26/09/2009 En ligne : https://doi.org/10.1080/10106040903302931 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30470
in Geocarto international > vol 25 n° 4 (July 2010) . - pp 257 - 267[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 059-2010041 RAB Revue Centre de documentation En réserve L003 Disponible Definition of ICESat selection criteria for their use as height references for TanDEM-X / J. Gonzalez in IEEE Transactions on geoscience and remote sensing, vol 48 n° 6 (June 2010)
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Titre : Definition of ICESat selection criteria for their use as height references for TanDEM-X Type de document : Article/Communication Auteurs : J. Gonzalez, Auteur ; M. Bachmann, Auteur ; Rolf Scheiber, Auteur ; G. Krieger, Auteur Année de publication : 2010 Article en page(s) : pp 2750 - 2757 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] Allemagne
[Termes IGN] analyse comparative
[Termes IGN] correction géométrique
[Termes IGN] données ICEsat
[Termes IGN] erreur de positionnement
[Termes IGN] image TanDEM-X
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] modèle numérique de surface
[Termes IGN] précision altimétriqueRésumé : (Auteur) The TanDEM-X satellite synthetic aperture radar (SAR) mission, which is the result of the partnership between the German Aerospace Center (DLR) and Astrium GmbH, has the goal to deliver a high-precision global digital elevation model (DEM). The X-band SAR interferometry-derived DEMs contain absolute and relative height errors that have to be minimized with the help of height references in order to achieve the specified accuracies. ICESat laser altimetry data are suited for this task, due to their accuracy and global distribution. In order to gain experience in the comparison between a radar-derived DEM and ICESat GLA14 elevation data, an X-band DEM was acquired over a test region with the experimental airborne radar system of DLR in Oberpfaffenhofen. Additionally, a laser DEM of the area was used to verify the height accuracy claimed by previously published ICESat studies over different terrain types and after applying different selection threshold criteria. The analyses described in this paper are the basis for the definition of a suitable global ICESat selection strategy and include the computation of the density of selected ICESat samples over the Earth. These aspects are crucial for a successful TanDEM-X DEM generation. Numéro de notice : A2010-195 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2010.2041355 En ligne : https://doi.org/10.1109/TGRS.2010.2041355 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30389
in IEEE Transactions on geoscience and remote sensing > vol 48 n° 6 (June 2010) . - pp 2750 - 2757[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-2010061 RAB Revue Centre de documentation En réserve L003 Disponible 065-2010062 RAB Revue Centre de documentation En réserve L003 Disponible Obtaining high fidelity triangular Regular Network from only DEM points / T. Gökgöz in Cartographic journal (the), vol 47 n° 2 (May 2010)
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Titre : Obtaining high fidelity triangular Regular Network from only DEM points Type de document : Article/Communication Auteurs : T. Gökgöz, Auteur Année de publication : 2010 Article en page(s) : pp 150 - 156 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] contour
[Termes IGN] interpolation
[Termes IGN] modèle numérique de surface
[Termes IGN] pente
[Termes IGN] tessellation
[Termes IGN] Triangular Regular Network
[Termes IGN] triangulation (topologie)Résumé : (Auteur) When the source data for the digital elevation model (DEM) are not known and any additional information or features such as skeleton lines of terrain is not available, a triangular regular network (TRN) is constructed with simple subdivision using one or two diagonals uniformly. Such a model gives inaccurate directions for interpolation because of the inaccurate diagonals used in triangulation and thereby, results in inaccurate contours representing artificial terrain features. In this study, a new method is developed based on slope information computed at DEM points determining accurate diagonals in the subdivision process, which is beneficial not only through the skeleton lines of a terrain but also all over the DEM. Consequently, it is shown that the proposed method is able to build a high fidelity TRN from a DEM without any additional information or features. Copyright British Cartographic Society Numéro de notice : A2010-260 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/000870409X12584524219009 Date de publication en ligne : 18/07/2013 En ligne : https://doi.org/10.1179/000870409X12584524219009 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30454
in Cartographic journal (the) > vol 47 n° 2 (May 2010) . - pp 150 - 156[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 030-2010021 RAB Revue Centre de documentation En réserve L003 Disponible Positional Accuracy Evaluation of Declassified Hexagon KH-9 Mapping Camera Imagery / A. Surazakov in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 5 (May 2010)
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Titre : Positional Accuracy Evaluation of Declassified Hexagon KH-9 Mapping Camera Imagery Type de document : Article/Communication Auteurs : A. Surazakov, Auteur ; V. Alzen, Auteur Année de publication : 2010 Article en page(s) : pp 603 - 608 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] Asie centrale
[Termes IGN] compensation par faisceaux
[Termes IGN] distorsion d'image
[Termes IGN] estimation de précision
[Termes IGN] modèle géométrique de prise de vue
[Termes IGN] modèle numérique de surface
[Termes IGN] point d'appuiRésumé : (Auteur) This paper examines the positional accuracy of the declassified KH-9 Hexagon imagery and derived DEM. Aimed at geodesy and mapmaking, the KH-9 program (1973 to 1980) resulted in an image archive with worldwide stereo coverage at 6 to 9 m. We used six KH-9 images acquired in 1980 over two testfields in Central Asia. Using reseau marks on the scanned KH-9 frames, we found and corrected image distortions. In bundle orientation with Ground Control Points (GCPs) from QuickBird images, we achieved horizontal accuracies below 6 m for a flat terrain testfield and approximately 10 m for a mountainous terrain testfield. With three GCPs the image orientation horizontal accuracy degraded by only 20 percent. We generated a DEM from the KH-9 images and estimated its vertical accuracy using IceSAT laser altimetry data and an additional DEM from 1:25 000 topographic maps. The DEM RMSE was 6.18 m over flat terrain and 20.0 m over mountainous terrain. Copyright ASPRS Numéro de notice : A2010-163 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.76.5.603 En ligne : https://doi.org/10.14358/PERS.76.5.603 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30358
in Photogrammetric Engineering & Remote Sensing, PERS > vol 76 n° 5 (May 2010) . - pp 603 - 608[article] PermalinkPermalinkQualité, résolution, précision... Bienvenue dans un monde imparfait / Françoise de Blomac in SIG la lettre, n° 116 (avril 2010)
PermalinkUncertainty within satellite LiDAR estimations of vegetation and topography / J. Rosette in International Journal of Remote Sensing IJRS, vol 31 n° 5 (March 2010)
PermalinkAutomated reduction of visual complexity in small-scale relief shading / A. Leonowicz in Cartographica, vol 45 n° 1 (March 2010)
PermalinkA DEM generalization by minor valley branch detection and grid filling / Tinghua Ai in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 2 (March - April 2010)
PermalinkUsing simulated Terrestrial Laser Scanning to analyse errors in high-resolution scan data of irregular surfaces / R. Hodge in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 2 (March - April 2010)
PermalinkInterferometric microrelief sensing with Terrasar-X: first results / J. Baade in IEEE Transactions on geoscience and remote sensing, vol 48 n° 2 (February 2010)
PermalinkAssessment of terrain elevation derived from satellite laser altimetry over mountainous forest areas using airborne lidar data / Q. Chen in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 1 (January - February 2010)
PermalinkChange detection in submetric optical images using land cover classification tools / Arnaud Le Bris (2010)
PermalinkDétection d'empreintes de bâtiments dans un modèle numérique d'élévation : une approche énergétique / Olivier Tournaire (2010)
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PermalinkPermalinkPermalinkPermalinkModelling vertical error in LiDAR-derived digital elevation models / F. Aguilar in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 1 (January - February 2010)
PermalinkStructural approach for building reconstruction from a single DSM / Florent Lafarge in IEEE Transactions on Pattern Analysis and Machine Intelligence, PAMI, vol 32 n° 1 (January 2010)
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PermalinkPermalinkUpdating and improving the accuracy of a large 3D database through the careful use of GCPs and Icesat data : Example of REFERENCE3D / Emilie Le Hir (2010)
PermalinkThe building shadow problem of airborne lidar / T.Y. Shih in Photogrammetric record, vol 24 n° 128 (December 2009 - February 2010)
PermalinkEffects of Lidar post-spacing and DEM resolution to mean slope estimation / T. Edwin in International journal of geographical information science IJGIS, vol 23 n°9-10 (september 2009)
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