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Termes IGN > sciences naturelles > physique > traitement d'image > modèle numérique de terrain
modèle numérique de terrainSynonyme(s)MNT ;DTM DGMVoir aussi |
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Accuracy prediction for ortho-image generation / Amnon Krupnik in Photogrammetric record, vol 18 n° 101 (March - May 2003)
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Titre : Accuracy prediction for ortho-image generation Type de document : Article/Communication Auteurs : Amnon Krupnik, Auteur Année de publication : 2003 Article en page(s) : pp 41 - 58 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Orthophotographie, orthoimage
[Termes IGN] erreur de mesure
[Termes IGN] modèle numérique de terrain
[Termes IGN] orthoimage
[Termes IGN] pente
[Termes IGN] point d'appui
[Termes IGN] points homologues
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] propagation d'erreurRésumé : (Auteur) This paper revisits the basic mathematical formulation of orthoimage (digital orthophoto) generation. The main objective is to provide an approach for predicting the accuracy of an orthoimage, according to the accuracy of the digital elevation model (DEM), control points and image measurements, the configuration of fiducial, tie and control points, and the ground slope. The approach is based on applying the wellknown law of error propagation to the mathematical model of orthoimage generation. Although it may seem intuitive for professionals in the field of photogrammetry, such an approach is essential in the era when specialists in other fields use offtheshelf software packages for orthoimage generation. Simulations with the derived approach show that the accuracy of the orthoimage is more sensitive to errors in image measurement of fiducial, tie and control points and ground coordinates of control points, than to DEM errors. Nonstandard configurations of fiducial, tie and control points further impair the accuracy. In addition, certain combinations of point location and ground slope might lead to unacceptably large error on the orthoimage. Numéro de notice : A2003-090 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/0031-868X.t01-1-00001 En ligne : https://doi.org/10.1111/0031-868X.t01-1-00001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22386
in Photogrammetric record > vol 18 n° 101 (March - May 2003) . - pp 41 - 58[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-03011 RAB Revue Centre de documentation En réserve L003 Disponible Multiresolution compression and visualization of global topographic data / T. Gerstner in Geoinformatica, vol 7 n° 1 (March - May 2003)
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Titre : Multiresolution compression and visualization of global topographic data Type de document : Article/Communication Auteurs : T. Gerstner, Auteur Année de publication : 2003 Article en page(s) : pp 7 - 32 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie numérique
[Termes IGN] arbre-B
[Termes IGN] compression de données
[Termes IGN] données topographiques
[Termes IGN] modèle numérique de terrain
[Termes IGN] représentation multiple
[Termes IGN] Triangulated Irregular Network
[Termes IGN] visualisationRésumé : (Auteur) We present a multiresolution model for terrain surfaces which is able to handle large-scale global topographic. It is based on a hierarchical decomposition of the sphere by a recursive bisection triangulation in geographic coordinates. Error indicators allow the representation of the data at various levels of detail and enable data compression by local omission of data values. The resulting adaptive hierarchical triangulation is stored using a bit code of the underlying binary tree and additionally, relative pointers which allow a selective tree traversal. This way, it is possible to work directly on the compressed data. We show that significant compression rates can be obtained already for small threshold values. In a visualization application, adaptive triangulations which consist of hundreds of thousands of shaded triangles are extracted and drawn at interactive rates. Numéro de notice : A2003-059 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1023/A:1022818126783 En ligne : https://doi.org/10.1023/A:1022818126783 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22355
in Geoinformatica > vol 7 n° 1 (March - May 2003) . - pp 7 - 32[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 057-03011 RAB Revue Centre de documentation En réserve L003 Disponible Ordering points for incremental TIN construction from DEMs / J.J. Little in Geoinformatica, vol 7 n° 1 (March - May 2003)
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Titre : Ordering points for incremental TIN construction from DEMs Type de document : Article/Communication Auteurs : J.J. Little, Auteur ; P. Shi, Auteur Année de publication : 2003 Article en page(s) : pp 33 - 53 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie numérique
[Termes IGN] erreur absolue
[Termes IGN] erreur aléatoire
[Termes IGN] erreur moyenne quadratique
[Termes IGN] ligne de base
[Termes IGN] modèle numérique de terrain
[Termes IGN] Triangulated Irregular NetworkRésumé : (Auteur) The standard method of building compact triangulated surface approximations to terrain surfaces (TINs) from dense digital elevation models (DEMs) adds points to an initial sparse triangulation or removes points from a dense initial mesh. Typically, in each triangle in the current TIN, the worst fitting point, in terms of vertical distance, is selected. The order of insertion of the points is determined by the magnitude of the maximum vertical difference. This measure produces triangulations that minimize the maximum vertical distance between the TIN and the source DEM. Other approximation criteria are often used, however, including the rootmeansquared error or the mean absolute error, both for the vertical difference and normal difference, i.e., the distance in the direction of the normal to the triangular approximation. For these approximation criteria, we still select the worst fit point, but determine the insertion order by various sums of' errors over the triangle. Experiments show that using these better evaluation measures significantly reduces the size of the TIN for a given approximation error. Numéro de notice : A2003-060 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1023/A:1022870110853 En ligne : https://doi.org/10.1023/A:1022870110853 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22356
in Geoinformatica > vol 7 n° 1 (March - May 2003) . - pp 33 - 53[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 057-03011 RAB Revue Centre de documentation En réserve L003 Disponible The Shuttle Radar Topography Mission: a new class of digital elevation models acquired by spaceborne radar / B. Rabus in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 4 (February - March 2003)
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Titre : The Shuttle Radar Topography Mission: a new class of digital elevation models acquired by spaceborne radar Type de document : Article/Communication Auteurs : B. Rabus, Auteur ; M. Eineder, Auteur ; Achim Roth, Auteur ; R. Bamler, Auteur Année de publication : 2003 Article en page(s) : pp 241 - 262 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] bande C
[Termes IGN] bande X
[Termes IGN] image radar moirée
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] mission spatiale
[Termes IGN] modèle numérique de terrain
[Termes IGN] navette spatiale
[Termes IGN] qualité des données
[Termes IGN] SRTMRésumé : (Auteur) For 11 days in february 2000, the Shuttle Radar Topography Mission (SRTM) successfully recorded by interferometric synthetic aperture radar (InSAR) data of the entire land mass of the earth between 60° N and 57° S. The data acquired in C-and X-bands are processed into the first global elevation models (DEMs) at 1 arc sec resolution, by NASA-JPL and German aerospace center (DLR), respectively. From the perspective of the STRM-X system, we give in this paper an overview of the mission and the DEM production, as well as an evaluation of the DEM product quality. Special emphasis is on challenges and peculiarities of the processing that arose from the unique designn of the STRM system, which has been the first single-pass interferometer in space. Copyright ISPRS Numéro de notice : A2003-023 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0924-2716(02)00124-7 En ligne : https://doi.org/10.1016/S0924-2716(02)00124-7 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22320
in ISPRS Journal of photogrammetry and remote sensing > vol 57 n° 4 (February - March 2003) . - pp 241 - 262[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-03011 SL Revue Centre de documentation Revues en salle Disponible
Titre : 3D image models in a dynamic environmental GIS Type de document : Article/Communication Auteurs : Eva Savina Malinverni, Auteur ; F. Di Gioia, Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2003 Collection : International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231 num. 34-5/W10 Conférence : ISPRS 2003, WG V/6 International Workshop Visualization and animation of reality-based 3D Models 24/02/2003 27/02/2003 Tarasp-Vulpera Suisse OA proceedings Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] aménagement du territoire
[Termes IGN] base de données cartographiques
[Termes IGN] cartographie numérique
[Termes IGN] modèle numérique de terrain
[Termes IGN] orthoimage
[Termes IGN] représentation multiple
[Termes IGN] SIG dynamique
[Termes IGN] système d'information environnementale
[Termes IGN] visualisation 3DIndex. décimale : 33.30 Photogrammétrie numérique Résumé : (Auteur) The modem digital cartography, represented by numerical cartography, digital elevation models (DEM, DTM, DSM), orthoimages or the same like photo textured on DEM, is the metrically correct and highly descriptive system on which integrate any other source of information. These three-dimensional models in dynamic GIS can provide an interesting tool for the environmental and territorial data management. Aim of this research is to set up procedures for generating a three-dimensional map with maximum characteristics of description and the best accuracy, in order to be over the bidimensional GIS mapping system. DTMs, orthoimages and their 3D models overlay are performed by softwares dedicated to digital photogrammetry (ER Mapper, Surfer) and CAD designs (3dStudio Max, AutoCAD 2000). Successively these representations have been elaborated within the GIS system for a series of different themes and queries, which can be of a great support for a decision system. The use of geographic computerised system is fundamental to acquire, manage and revise all sort of information. This work shows how to create a complete, as far as the cartography is concerned, threedimensional database within the GIS system. Digital sensor derived images, or digitalised images, remote sensing acquired, or any other spatial referred qualitative or quantitative data can be used as data for the application of new methodologies and new procedures for the cartographical elaborations and their representations. Their final products, or the intermediate ones, are easily managed by very well and worldwide known systems, such as the GIS one. Numéro de notice : 15075 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Communication DOI : sans En ligne : https://www.isprs.org/proceedings/XXXIV/5-W10/papers/malinver.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64386 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15075-01 33.30 Tiré à part Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Conception et développement d'une application de modélisation de crue et inondation en 3 dimensions et temps réel / J.B. Feriot (2003)
PermalinkContribution de la topométrie à une modélisation intégrée de la lagune de Merja Zerga (Maroc) / Thierry Germain (2003)
PermalinkPermalinkDéveloppement d'indicateurs géomorphométriques à partir de modèles numériques de terrain / Olivier Passalacqua (2003)
PermalinkPermalinkImpact of relief accuracy on flood simulations and road network vulnerability analysis / Jean-François Gleyze (2003)
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PermalinkIntégration cohérente de données 2D et 2,5D dans un modèle numérique de terrain / A. Lafragueta (2003)
PermalinkPermalinkPermalinkValidation des estimations de l'aléa érosion des sols à l'échelle européenne / Anton Van Rompaey (2003)
PermalinkCreation of digital terrain models using an adaptative Lidar vegetation point removal process / G.T. Raber in Photogrammetric Engineering & Remote Sensing, PERS, vol 68 n° 12 (December 2002)
PermalinkL'orthophoto institutionnelle : grande facilité d'emploi et d'interprétation / Michel Kasser in Géomètre, vol 2002 n° 12 (décembre 2002)
PermalinkHigh-quality DTMs: combining laser scanning, digital photogrammetry and ground survey / P. Reiss in GIM international, vol 16 n° 11 (November 2002)
PermalinkHigh-resolution 3D modelling and visualization of Mount Everest / Armin W. Gruen in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 1-2 (November - December 2002)
PermalinkRemote sensing for environmental protection of the eastern Mediterranean rugged mountainous areas, Lebanon / M. Khawlie in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 1-2 (November - December 2002)
PermalinkTopographic SAR interferometry formulation for high-précision DEM generation / R. Abdelfattah in IEEE Transactions on geoscience and remote sensing, vol 40 n° 11 (November 2002)
PermalinkGeo-information through photogrammetry: effectiveness factors in mapping from large-scale images / B. Makarovic in GIM international, vol 16 n° 9 (September 2002)
PermalinkErrors of signal processing in digital terrain modelling / Igor V. Florinsky in International journal of geographical information science IJGIS, vol 16 n° 5 (july 2002)
PermalinkPermalinkPreserving cartographic quality in DTM interpolation from contour lines / Gil Rito-Gonçalves in ISPRS Journal of photogrammetry and remote sensing, vol 56 n° 3 (April - June 2002)
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