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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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Titre : De la 3D avec GRASS GIS et NVIZ Type de document : Article/Communication Auteurs : Philippe Lépinard, Auteur Année de publication : 2011 Article en page(s) : pp 10 - 13 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] GRASS
[Termes IGN] logiciel libre
[Termes IGN] modèle numérique de surface
[Termes IGN] visualisation 3DRésumé : (Auteur) GRASS GIS est un Système d'Information Géographique complet, gratuit et open source. C'est l'un des projets officiels de l'Open Source Geospatial Foundation (OSGeo). Vous pouvez le découvrir soit en autonome soit couplé avec Quantum GIS (QGIS). Néanmoins, le principe reste le même ; le fait de travailler avec Quantum GIS vous permet simplement de transférer rapidement des couches d'information géographique entre les deux applications. Numéro de notice : A2011-119 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30899
in Géomatique expert > n° 79 (01/03/2011) . - pp 10 - 13[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 265-2011021 RAB Revue Centre de documentation En réserve L003 Disponible IFN-001-P001267 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Acquisition of the 3D boundary of the Triglav glacier from archived non-metric panoramic images / Mihaela Triglav Cekada in Photogrammetric record, vol 26 n° 133 (March - May 2011)
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[article]
Titre : Acquisition of the 3D boundary of the Triglav glacier from archived non-metric panoramic images Type de document : Article/Communication Auteurs : Mihaela Triglav Cekada, Auteur ; R. Radovanovic, Auteur ; Dalibor Radovan, Auteur ; M. Gabrovec, Auteur ; Mojca Kosmatin-Fras, Auteur Année de publication : 2011 Article en page(s) : pp 111 - 129 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] alpes orientales
[Termes IGN] analyse diachronique
[Termes IGN] angle vertical
[Termes IGN] chambre non métrique
[Termes IGN] chambre panoramique
[Termes IGN] données localisées 3D
[Termes IGN] glacier
[Termes IGN] modèle numérique de surface
[Termes IGN] montagne
[Termes IGN] numérisation de photographie
[Termes IGN] photographie argentique
[Termes IGN] Slovénie
[Termes IGN] volume (grandeur)Résumé : (Auteur) A panoramic, non-metric, Horizont camera has been used for regular, monthly, close-range photography of the rapidly retreating Triglav glacier in Slovenia since 1976. The unfavourable geometry of the convergent images taken from the two camera stations has made any direct stereoscopic observation and recording impossible. The aim of this research was to define the most useful method for acquiring 3D data from these panoramic, convergent images. The Horizont camera was calibrated and three methods were then tested: the generation of pseudo-orthophotographs, the application of 2D clinometry and the interactive orientation of a detailed digital elevation model (DEM) on the images. The third turned out to be the only method suitable for determining the boundary of the Triglav glacier. The interactive orientation of a detailed DEM on the Horizont images is described in detail. The 3D glacier boundary can be acquired from individual Horizont images (camera stations A and B) enabling the computation of the glacier’s area and theoretical volume. By repeating the glacier boundary acquisition for different orientation parameters, the standard deviations of the glacier area and theoretical volume were computed. Because of the more precise average area and volume measurements achieved with the camera station B images, only these were chosen for the glacier disappearance study. Every third year between 1976 and 2005 the Horizont images were used to compute the changes in the area and volume of the glacier. The glacier area was found to have reduced to 8% of its earlier size, from 15 ha in 1976 to 1·2 ha in 2000. However, owing to harsher than average winters since then the decline in the glacier area was found to have slowed in the past decade (2000 to 2009). The glacier’s theoretical volume decreased roughly exponentially from 1976 to 2005 Numéro de notice : A2011-079 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2011.00622.x Date de publication en ligne : 16/03/2011 En ligne : https://doi.org/10.1111/j.1477-9730.2011.00622.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30860
in Photogrammetric record > vol 26 n° 133 (March - May 2011) . - pp 111 - 129[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-2011011 RAB Revue Centre de documentation En réserve L003 Disponible Minimising systematic error surfaces in digital elevation models using oblique convergent imagery / R. Wackrow in Photogrammetric record, vol 26 n° 133 (March - May 2011)
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[article]
Titre : Minimising systematic error surfaces in digital elevation models using oblique convergent imagery Type de document : Article/Communication Auteurs : R. Wackrow, Auteur ; Jim H. Chandler, Auteur Année de publication : 2011 Article en page(s) : pp 16 - 31 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] angle de visée
[Termes IGN] déformation de surface
[Termes IGN] erreur systématique
[Termes IGN] image oblique
[Termes IGN] inondation
[Termes IGN] modèle numérique de surface
[Termes IGN] photogrammétrie terrestreRésumé : (Auteur) There are increasing opportunities to use consumer-grade digital cameras, particularly if accurate spatial data can be captured. Research recently conducted at Loughborough University identified residual systematic error surfaces or domes discernible in digital elevation models (DEMs). These systematic effects are often associated with such cameras and are caused by slightly inaccurate estimated lens distortion parameters. A methodology that minimises the systematic error surfaces was therefore developed, using a mildly convergent image configuration in a vertical perspective. This methodology was tested through simulation and a series of practical tests. This paper investigates the potential of the convergent configuration to minimise the error surfaces, even if the geometrically more complex oblique perspective is used. Initially, simulated data was used to demonstrate that an oblique convergent image configuration can minimise remaining systematic error surfaces using various imaging angles. Additionally, practical tests using a laboratory testfield were conducted to verify results of the simulation. The need to develop a system to measure the topographic surface of a flooding river provided the opportunity to verify the findings of the simulation and laboratory test using real data. Results of the simulation process, the laboratory test and the practical test are reported in this paper and demonstrate that an oblique convergent image configuration eradicates the systematic error surfaces which result from inaccurate lens distortion parameters. This approach is significant because by removing the need for an accurate lens model it effectively improves the accuracies of digital surface representations derived using consumer-grade digital cameras. Carefully selected image configurations could therefore provide new opportunities for improving the quality of photogrammetrically acquired data. Numéro de notice : A2011-076 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2011.00623.x Date de publication en ligne : 16/03/2011 En ligne : https://doi.org/10.1111/j.1477-9730.2011.00623.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30857
in Photogrammetric record > vol 26 n° 133 (March - May 2011) . - pp 16 - 31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-2011011 RAB Revue Centre de documentation En réserve L003 Disponible New data sources for completing national topographic mapping of Northern Canada at 1:50,000 / D. Clavet in Geomatica, vol 65 n° 1 (March 2011)
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[article]
Titre : New data sources for completing national topographic mapping of Northern Canada at 1:50,000 Type de document : Article/Communication Auteurs : D. Clavet, Auteur Année de publication : 2011 Article en page(s) : pp 9 - 14 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] 1:50.000
[Termes IGN] Arctique
[Termes IGN] Canada
[Termes IGN] carte topographique
[Termes IGN] couverture cartographique
[Termes IGN] diffusion de données
[Termes IGN] données vectorielles
[Termes IGN] géoportail
[Termes IGN] gestion des ressources
[Termes IGN] image ERS
[Termes IGN] image Landsat-ETM+
[Termes IGN] image Radarsat
[Termes IGN] image SPOT-HRS
[Termes IGN] modèle numérique de surface
[Termes IGN] photographie aérienneRésumé : (Auteur) Complete topographic mapping coverage of Canada is essential as a basis for the sustainable development of its resources. In 2000, the unmapped areas at a scale of 1:50,000 in the Arctic islands in Nunavut and the Northwest Territories, amount to over 800,000 square kilometres, equivalent to approximately 1,500 map sheets. In 2003, a northern mapping project was launched to complete the topographic map coverage in Northern Canada. In order to explore all possible scenarios, the Centre for Topographic Information – Sherbrooke (CTIS) worked closely with the Canadian Space Agency and the private sector on various feasibility tests. After investigating multiple data sources, the combination of existing aerial photography, LANDSAT 7 ETM+, SPOT5/HRS imagery, interferometric pairs of ERS 1-2 tandem and RADARSAT-2 imagery were chosen for planimetric data and Canadian Digital Elevation Data (CDED) acquisition. In 2004, mapping contracts were carried out on a test site and positive results from these tests initiated the production of the unmapped areas of Canada. The planimetric vector data are available on the GeoGratis Web portal and the CDED data sets are available on the GeoBase Web portal. Numéro de notice : A2011-536 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.5623/cig2011-004 En ligne : https://doi.org/10.5623/cig2011-004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31430
in Geomatica > vol 65 n° 1 (March 2011) . - pp 9 - 14[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 035-2011011 RAB Revue Centre de documentation En réserve L003 Disponible Construction of digital 3D highway model using stereo IKONOS satellite imagery / Ahmed Shaker in Geocarto international, vol 26 n° 1 (February 2011)
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[article]
Titre : Construction of digital 3D highway model using stereo IKONOS satellite imagery Type de document : Article/Communication Auteurs : Ahmed Shaker, Auteur ; W. Yan, Auteur ; S. Easa, Auteur Année de publication : 2011 Article en page(s) : pp 49 - 67 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] autoroute
[Termes IGN] extraction semi-automatique
[Termes IGN] géoréférencement indirect
[Termes IGN] Hong-Kong
[Termes IGN] image Ikonos
[Termes IGN] modèle géométrique de prise de vue
[Termes IGN] modèle numérique de surface
[Termes IGN] modèle par fonctions rationnelles
[Termes IGN] pansharpening (fusion d'images)
[Termes IGN] point d'appui
[Termes IGN] signalisation routière
[Termes IGN] TorontoRésumé : (Auteur) This study aims to assess the accuracy of using stereo high resolution satellite imagery for extracting the highway profiles and plans and constructing accurate 3D highway visualization model. Two stereo-pair IKONOS satellite images for Hong Kong and Toronto are geo-referenced by using a number of ground control points acquired by global positioning system measurements. A polynomial-based generic pushbroom model and rational function model are used to perform the sensor orientation, respectively. The highway alignments are extracted semi-automatically using stereoscopic measurements, and a 3D digital model along the highway is constructed. It is found that the highway alignments retrieved from the stereo IKONOS images result in less than 1-m root mean squared error in most of the cases in the horizontal and vertical directions. Near half-pixel accuracy can be achieved by using pansharpening stereo satellite imagery and under the condition that clear road surface markings can be identified along the highway. Numéro de notice : A2011-036 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2010.537785 Date de publication en ligne : 04/12/2010 En ligne : https://doi.org/10.1080/10106049.2010.537785 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30817
in Geocarto international > vol 26 n° 1 (February 2011) . - pp 49 - 67[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 059-2011011 RAB Revue Centre de documentation En réserve L003 Disponible PermalinkPermalinkChange detection in a topographic building database using submetric satellite images / Arnaud Le Bris (2011)
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PermalinkDétection de changement 2D à partir d’imagerie satellitaire : Application à la mise à jour des bases de données géographiques / Nicolas Champion (2011)
PermalinkEstimation of avalanche front velocities from high speed terrestrial photogrammetry / A. Soruco (2011)
PermalinkGeneralization of DEM for terrain analysis using a compound method / Q. Zhou in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 1 (January - February 2011)
PermalinkPermalinkAdjustment computation of HASM : a high-accuracy and high speed method / T. Yue in International journal of geographical information science IJGIS, vol 24 n°11-12 (december 2010)
PermalinkUse of high-resolution satellite imagery in an integrated model to predict the distribution of shade coffee tree hybrid zones / C. Gomez in Remote sensing of environment, vol 114 n° 11 (15/11/2010)
PermalinkDTM generalisation : handling large volumes of data for multi-scale mapping / O. Chaudry in Cartographic journal (the), vol 47 n° 4 (November 2010)
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