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Auteur European Spatial Data Research EuroSDR
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EuroSDR est une organisation paneuropéenne dont l'objet est de mettre en relation les agences cartographiques et cadastrales avec les instituts de recherche et les universités en Europe à des fins de recherche appliquée dans la collecte, la gestion et la diffusion de données géospatiales.
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Documents disponibles écrits par cet auteur (16)
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Titre : [Three reports of EuroSDR projects] Type de document : Rapport Auteurs : European Spatial Data Research EuroSDR, Auteur Editeur : Dublin : European Spatial Data Research EuroSDR Année de publication : 2006 Collection : EuroSDR official publication, ISSN 0257-0505 num. 51 Importance : 185 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-90-5179-491-6 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] analyse comparative
[Termes IGN] automatisation
[Termes IGN] données multisources
[Termes IGN] modèle numérique de terrainIndex. décimale : 30.60 Géodésie spatiale Résumé : (Auteur) This report deals with research work how digital terrain models can automatically be checked and improved. Test material consisting of three DTMs of different acquisition methods has been prepared, and six research groups applied their methods with the delivered DTMs. The provided imagery is suitable for the production of orthoimages and serves also as auxiliary material for the checking and improving of DTMs. The results of the participants were analyzed by means of accurate reference material with regard to accuracy. Furthermore, the completeness and degree of automation at the different methods have been evaluated.
The report describes in detail the delivered test material, the characteristics of the different methods, the strategy in the evaluation including the applied accuracy measures. The improving of DTMs is also possible to a large extent. A thematic map can give a quick overview where additional measure-ments are required. The applied methods are compared by means of the accuracy measures derived both from the delivered material and from the accurate reference data of the pilot centre. One method, which derives correction for the delivered DTM by means of parallaxes between two over-lapping orthoimages, was applied to all test areas and achieved the best results. The three DTMs could be tested with an accuracy of Oj,=0.015% of the flying height. Proposals for future practical work and further investigations are given. The results of this investigation will also be disseminated in educational seminars and e-learning courses of the EuroSDR. The contributions of the participating research groups are attached in the appendix of the report. Copyright European Spatial Data ResearchNuméro de notice : 15390 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Rapport d'étude technique DOI : sans En ligne : http://www.eurosdr.net/sites/default/files/uploaded_files/eurosdr_publication_nd [...] Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=62708 Contient
- The EuroSDR Test “Checking and Improving of Digital Terrain Models” / Joachim Höhle (2006)
- Reliability of direct georeferencing: An overview of the current approaches and possibilities / Jan Skaloud (2006)
- Reliability of direct georeferencing: A case study on practical problems and solutions / Klaus Legat (2006)
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Code-barres Cote Support Localisation Section Disponibilité 15390-01 33.60 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible