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ISPRS 2006, Commission 1, Working Groups I/5, I/6 workshop on Topographic Mapping from Space with Special Emphasis on Small Satellites 14/02/2006 16/02/2006 Ankara Turquie OA ISPRS Archives
nom du congrès :
ISPRS 2006, Commission 1, Working Groups I/5, I/6 workshop on Topographic Mapping from Space with Special Emphasis on Small Satellites
début du congrès :
14/02/2006
fin du congrès :
16/02/2006
ville du congrès :
Ankara
pays du congrès :
Turquie
site des actes du congrès :
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Affiner la recherche Interroger des sources externesPreparing the use of Pleiades images for mapping purposes : preliminary assessments at IGN-France / Jean-Philippe Cantou (01/02/2006)
Titre : Preparing the use of Pleiades images for mapping purposes : preliminary assessments at IGN-France Type de document : Article/Communication Auteurs : Jean-Philippe Cantou Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 01/02/2006 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 36-1/W41 Conférence : ISPRS 2006, Commission 1, Working Groups I/5, I/6 workshop on Topographic Mapping from Space with Special Emphasis on Small Satellites 14/02/2006 16/02/2006 Ankara Turquie OA ISPRS Archives Importance : 6 p. Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] cartographie topographique
[Termes IGN] image à résolution submétrique
[Termes IGN] image optique
[Termes IGN] image Pléiades-HR
[Termes IGN] mise à jour cartographique
[Termes IGN] qualité géométrique (image)
[Termes IGN] qualité radiométrique (image)
[Termes IGN] satellite agileRésumé : (Auteur) The Pleiades System, of which the first platform of the constellation shall be ready for launch in early 2009, is the new generation of high resolution optical sensor satellites developed by CNES, the French space agency. With its ability to provide photogrammetrists with instantaneous colour image stereo-pairs of 20km swath and 70cm resolution acquired with B/H ratios ranging from 0.15 to 2, the very agile and precisely pointing Pleiades platforms should open in many countries a new era for the updating of high scale maps, by probably avoiding heavy aerial survey campaigns in many cases. In the framework of a cooperation agreement between CNES and IGN-France (IGN-F), designed to prepare an operational use of these images, several experimentations and simulations are being carried out, in order to verify the ability of the System to fulfill the technical and operational requirements of the map-making processes, in comparison with those presently based on digital aerial photography. Among others, present studies particularly focus on :
the geometric and radiometric quality assessment of the planned System products (sensor level, orthoimages and mosaics).
the capacity assessment of the Pleiades constellation to meet the IGN-F cartographic mission needs in terms of image volume for the coverage of the national territory, whether in monoscopic or stereoscopic mode.
the potential of stereo- and three-fold stereoscopic image simulations for the extraction of buildings in 3D, after adapting algorithms primarily dedicated to higher resolution aerial images.
After an overview of the main characteristics of the Pleiades System, the paper aims at presenting the first results of these studies, which will be of great importance, together with the economic side, in the decision process of IGN-F to transfer, or not, part of the supplying of fresh images from the aerial source to the satellite source.Numéro de notice : C2006-008 Affiliation des auteurs : IGN (1940-2011) Thématique : IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : http://www.isprs.org/proceedings/XXXVI/1-W41/makaleler/Cantau_Preparing_Pleiades [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64396 Documents numériques
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Preparing the use of Pleiades images for mapping purposesAdobe Acrobat PDF
Titre : A multiresolution and optimization-based image matching approach: An application to surface reconstruction from SPOT5-HRS stereo imagery Type de document : Article/Communication Auteurs : Marc Pierrot-Deseilligny Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2006 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 36/2-W40 Conférence : ISPRS 2006, Commission 1, Working Groups I/5, I/6 workshop on Topographic Mapping from Space with Special Emphasis on Small Satellites 14/02/2006 16/02/2006 Ankara Turquie OA ISPRS Archives Importance : 5 p. Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] appariement d'images
[Termes IGN] image SPOT 5
[Termes IGN] modèle numérique de surface
[Termes IGN] niveau de détail
[Termes IGN] optimisation (mathématiques)
[Termes IGN] reconstruction 3D
[Termes IGN] reconstruction d'objetRésumé : (auteur) This paper addresses the multi-resolution implementation of a Cox&Roy optimal flow image matching algorithm. This minimization algorithm aims at solving the surface reconstruction problem formalized as a minimization of an energy. This multi-resolution approach is necessary for achieving reasonable processing times on extended areas and improving robustness by restraining matching ambiguities. Some very good results are shown on a 10m ground sample distance (GSD) SPOT5-HRS stereopair. Intermediate results at different steps of the reconstruction process show all the Level Of Details provided by the different pyramid scale levels. The tuning of the regularization parameter is also discussed for different landscapes. Numéro de notice : C2006-003 Affiliation des auteurs : MATIS (1993-2011) Thématique : IMAGERIE/INFORMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : http://www.isprs.org/proceedings/XXXVI/1-W41/makaleler/Pierrot_multiresolution_m [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75692 Documents numériques
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multiresolution optimization image matchingAdobe Acrobat PDF
