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EuroSDR building extraction comparaison / Harri Kaartinen (2005)  

Public Titre : EuroSDR building extraction comparaison Type de document : Article/Communication Auteurs : Harri Kaartinen, Auteur ; Juha Hyyppä, Auteur ; Eberhard Gülch, Auteur ; H. Hyyppä, Auteur ; Leena Matikainen, Auteur ; M. George Vosselman, Auteur ; A.D. Hofmann, Auteur ; U. Mäder, Auteur ; A. Persson, Auteur ; U. Söderman, Auteur ; M. Elmqvist, Auteur ; A. Ruiz, Auteur ; M. Dragoja, Auteur ; David Flamanc , Auteur ; Grégoire Maillet , Auteur ; et al., Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2005 Collection : International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231 num. 36-1/W3 Conférence : ISPRS 2005, WG I/5, IV/3, I/1, I/3, IV/2 ISPRS Hannover Workshop 2005 High-Resolution Earth Imaging for Geospatial Information 17/05/2005 20/05/2005 Hannovre Allemagne OA ISPRS Archives Importance : 6 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] analyse comparative [Termes IGN] arc [Termes IGN] bâtiment [Termes IGN] détection du bâti [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] étalonnage de chambre métrique [Termes IGN] modèle 3D de l'espace urbain [Termes IGN] orientation d'image [Termes IGN] orthoimage [Termes IGN] point d'appui [Termes IGN] semis de points Résumé : (auteur) The paper focuses on comparing accuracies obtained with photogrammetry and laser scanning in building extraction. The objective of the EuroSDR Building Extraction comparison was to evaluate the quality, accuracy, feasibility and economical aspects of semi automatic building extraction based on photogrammetric techniques with the emphasis on commercial and/or operative systems, semi-automatic and automatic building extraction techniques based on high density laser scanner data and semi-automatic and automatic building extraction techniques based on integration of laser scanner data and aerial images. The project consists of three test sites by the Finnish Geodetic Institute (FGI), namely Senaatti, Hermanni and Espoonlahti, and one test site by the Institut Geographique National (IGN), namely Amiens. For each test site following data was provided to the partners: aerial images, camera calibration and image orientation information, ground control point coordinates and jpg images of point locations (not for Amiens), laser scanner data and cadastral map vectors of selected buildings. Participants were requested to create vectors of 3D city models. 3D-models were obtained from 11 participants. The paper confirms with experiments that laser scanning is superior in deriving building heights, extracting planar roof faces and ridges of the roof, whereas photogrammetry and aerial images are superior in building outline and length determination. Numéro de notice : C2005-037 Affiliation des auteurs : MATIS+Ext (1993-2011) Thématique : IMAGERIE/INFORMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVI/1-W3/PDF/064-kaartinen.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100078

Knowledge-based process management to populate databases with 3D multi representation of buildings / B. Fredericque (2005)  

Public Titre : Knowledge-based process management to populate databases with 3D multi representation of buildings Titre original : Gestion des processus basés sur la connaissance pour alimenter les bases de données avec des représentations 3D des bâtiments Type de document : Article/Communication Auteurs : B. Fredericque, Auteur ; S. Daniel, Auteur ; Yvan Bédard, Auteur ; Nicolas Paparoditis , Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2005 Conférence : ISPRS 2005, WG I/5, IV/3, I/1, I/3, IV/2 ISPRS Hannover Workshop 2005 High-Resolution Earth Imaging for Geospatial Information 17/05/2005 20/05/2005 Hannovre Allemagne OA ISPRS Archives Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] bati [Termes IGN] découverte de connaissances [Termes IGN] représentation cartographique 3D Résumé : (auteur) This paper presents our approach to improve the 3D-MRDB population techniques in the context of buildings (i.e. to define several geometric representations, different levels of details, of a geographical object). After having discussed our motivations, we present an overview of existing researches relating to the extraction of buildings’ geometries. A description of the multi-scale pattern concept, developed in our working group to support the extraction of simplified geometries, is also provided. We present afterwards our system approach to improve the detailed geometry extraction automation (through parametric models) while facilitating the extraction of simplified geometries (through multi-scale pattern). Our system architecture, implementing the Instance Driven SASS (Instance Driven Selection of Algorithms Setting and Sources) concept based on a priori knowledge is then described as well as the associated concepts. This semi-automatic approach requests the operator to introduce a priori knowledge; the sources, the algorithms and the parameters are then automatically selected according to the context. Finally, our methodology, aiming at implementing and validating our system, and the progress report of the project are described in the last part of this paper. Numéro de notice : C2005-057 Affiliation des auteurs : MATIS+Ext (1993-2011) Thématique : GEOMATIQUE Nature : Communication DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVI/1-W3/PDF/087-fredericque.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=103485