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ISPRS conference on Automatic extraction of GIS objects from digital imagery, September 8 - 10, 1999, Munich, Germany / Heinrich Ebner (1999)
Titre : ISPRS conference on Automatic extraction of GIS objects from digital imagery, September 8 - 10, 1999, Munich, Germany Type de document : Actes de congrès Auteurs : Heinrich Ebner, Éditeur scientifique ; Wolfgang Eckstein, Éditeur scientifique ; Christian Heipke, Éditeur scientifique ; Helmut Mayer, Éditeur scientifique Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 1999 Collection : International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231 num. 32-3-2W5 Conférence : ISPRS 1999, WG III/ 2 & 3 Workshop Automatic extraction of GIS objects from digital imagery 08/09/1999 10/09/1999 Munich Allemagne Importance : 226 p. Format : 21 x 30 cm Note générale : pas passé en numérique dans les archives de l'ISPRS Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] détection du bâti
[Termes IGN] extraction de la végétation
[Termes IGN] extraction du réseau routier
[Termes IGN] orientation d'imageNote de contenu : Session 1 Building extraction and scene models
Session 2 Evaluation and accuracy
Session 3 Theory and algorithms
Session 4 Building extraction
Session 5 Road extraction
Session 6 Image orientation
Session 7 Vegetation extraction
Session 8 Building extraction
Session 9 Road extraction and visualizationNuméro de notice : 19894 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Actes DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86143 ContientExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 19894-01 CG1999 Livre Centre de documentation Congrès Exclu du prêt OEEPE survey on 3D-city models / C. Fuchs (1998)
Titre : OEEPE survey on 3D-city models Autre titre : Performance of tie-point extraction in automatic aerial triangulation Type de document : Rapport Auteurs : C. Fuchs, Auteur ; Eberhard Gülch, Auteur ; Wolfgang Förstner, Auteur ; Christian Heipke, Auteur ; Konrad Eder, Auteur Editeur : Francfort sur le Main : Institut für Angewandte Geodäsie Année de publication : 1998 Collection : Official Publication OEEPE, ISSN 0257-0505 num. 35 Importance : 185 p. Format : 17 x 24 cm ISBN/ISSN/EAN : 978-3-88648-075-3 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie
[Termes IGN] aérotriangulation
[Termes IGN] extraction automatique
[Termes IGN] milieu urbain
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] modélisation 3DIndex. décimale : 33.00 Photogrammétrie - généralités Numéro de notice : 66889 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Rapport d'étude technique Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=61673 ContientExemplaires(3)
Code-barres Cote Support Localisation Section Disponibilité 66889-01 33.00 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible 66889-02 33.00 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible 66889-03 33.00 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Performance of tie-point extraction in automatic aerial triangulation / Christian Heipke (December 1998)
Titre : Performance of tie-point extraction in automatic aerial triangulation Type de document : Chapitre/Contribution Auteurs : Christian Heipke, Auteur Editeur : Francfort sur le Main : Institut für Angewandte Geodäsie Année de publication : December 1998 Collection : Official Publication OEEPE, ISSN 0257-0505 num. 35 Importance : pp 125 - 183 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] aérotriangulation numérique
[Termes IGN] extraction automatique
[Termes IGN] points homologuesRésumé : (Auteur) The European Organisation for Experimental Photogrammetric Research (OEEPE) and the International Society for Photogrammetry and Remote Sensing (ISPRS) have carried out a test on the performance of tie point extraction in automatic aerial triangulation (AAT). The aims of the test were to investigate the geometrical block stability, the accuracy of the tie points and the derived orientation parameters, and the limitations of existing commercial and experimental software systems. In order to separate the essentially new aspect of digital processing, namely automation, from conventional issues of aerial triangulation, control information was not assessed, and the test blocks to be processed had an arbitrary block datum. The Chair for Photogrammetry and Remote Sensing, Technische Universität München acted as pilot centre for the test. In early 1997 various small blocks of different scene content were distributed to interested participants. Their task was to generate tie points in an automatic way. The results of 21 participants, including all major software vendors of AAT and users of their systems, have been analysed and are presented in this report. Given a large number of tie points per image has been extracted, the blocks were found to be mostly stable. Under good conditions (open, flat terrain) an accuracy for the tie points of up to 2.2 mm corresponding to 0. 11 pixel could be reached, while under less favourable conditions, the result was 49 mm or 0.20.3 pixel. These figures were found to be very similar for the different systems. In mountainous and forested areas, some systems failed to produce acceptable results. Reliable self control is a feature missing in all systems to date. Also, it seems that considerable experience is required to properly run the systems. Numéro de notice : H1998-009 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Chapître / contribution Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75596 Digitale photogrammetrische Arbeitsstationen / Christian Heipke (1995)
Titre : Digitale photogrammetrische Arbeitsstationen Titre original : [Station de travail de photogrammétrie numérique] Type de document : Thèse/HDR Auteurs : Christian Heipke, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1995 Collection : DGK - C Sous-collection : Dissertationen num. 450 Importance : 111 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9493-2 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] photogrammétrie numérique
[Termes IGN] station de travail de photogrammétrie numériqueIndex. décimale : 33.30 Photogrammétrie numérique Résumé : (Auteur) This work deals with digital photogrammetric workstations (DPWS). It contains a complete overview of this important photogrammetric topic, something which does not exist to date. Besides documenting the state-of-the-art of DPWS, it describes the design of a universal DPWS for the acquisition and revision of topographic data. This design is geared towards practical applications. At the same time current trends in research and development of digital photogram-metry are emphasized. The potential of the universal DPWS is demonstrated for a number of tasks. The universal DPWS is also compared to the analytical plotter - today's standard instrument for photogrammetric data acquisition, to commercially available DPWS, and to representative research and development projects of the computer vision community.
The design of the universal DPWS is based on an analysis of the photogrammetric processing chain for digital imagery. It is also strongly influenced by scientific approaches for automated image analysis and by the results of intensive discussions with various DPWS companies. The universal DPWS design includes the following features:
- interactive processing with semi-automatic and automatic data collection modules,
- mono and stereo viewing,
- mono and stereo measurement with subpixel accuracy,
- multi image processing in all steps,
- standard hardware components wherever possible,
- modular software design.
The possibilities of automatic processing of photogrammetric imagery are demonstrated with three examples from the areas of image compression, automatic relative orientation, and automatic generation of a digital terrain model (DTM). Image compression has hardly been investigated within photogrammetry. However, due to the rapidly growing data volume its importance is steadily increasing. In this work the impact of lossy image compression onto the accuracy of subsequently generated photogrammetric products is quantitatively examined' for the first time. It is shown that for black and white images a compression rate of 5 can already lead to errors which are comparable in size to the measurement accuracy. For automatic relative orientation a new algorithm is presented which is based on hierarchical feature matching. The results of various tests confirm that the algorithm has reached an operational stage in terms of being able to handle a large variety of images, and in terms of accuracy, robustness, and computational speed. The automatic DTM generation is based on global image matching in object space and constitutes the first controlled test of this rather general approach using real imagery.
A comparison between the analytical plotter and the DPWS reveals clear advantages on the side of the DPWS despite some technological drawbacks. These advantages ensure that the DPWS will become the major photogrammetric data acquisition system in the near future. While reviewing the capabilities of currently available commercial DPWS it is shown that they operate on the cutting edge of today's technology. Most of them were developed with concepts of analytical photogrammetry in mind, and thus do not take full advantage of the additional possibilities provided by the digital imagery. This is especially true for multi image processing and semi-automatic data collection. Therefore, the commercial systems have to be considered as prototypes of the universal DPWS. Two American projects, RADIUS (Research and development for image understanding systems) and IUE (image understanding environment), and their connection to DPWS are discussed next. An evaluation of the universal DPWS for practical applications concludes the work.Numéro de notice : 28039 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63386 Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 28039-01 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible 28039-02 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible From digital images to spatial objects / Christian Heipke (1995)
Titre : From digital images to spatial objects : research and development topics in digital photogrammetry Type de document : Monographie Auteurs : Christian Heipke, Éditeur scientifique Editeur : Colombus (Ohio) : Ohio State University Année de publication : 1995 Collection : Department of Geodetic Science and Surveying Reports num. 433 Importance : 85 p. Format : 21 x 27 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] détection de contours
[Termes IGN] extraction du réseau routier
[Termes IGN] ondelette
[Termes IGN] orientation relativeIndex. décimale : 33.30 Photogrammétrie numérique Note de contenu : Part 1
1. Automatic relative orientation of aerial images / Liang Tang, Christian Heipke
2. Photogrammetric point determination using MOMS-02/D2 imagery / Wolfgang Kornus, Heinrich Ebner, Christian Heipke
3. A hierarchical approach to automatic road extraction from aerial imagery / Christian Heipke, Carsten Steger, Ralph Multhammer
Part 2
4. Experiments with edge detection using one-dimensional surface fitting / Gabor Terei, Jorge Luis Nunes, Silva Brito
5. Introduction to edge detection by wavelet analysis / Tim P. Farrier, Grady H. Tuell, Christian Heipke
6. Experiments with anisotropic diffusion for adaptive image smoothing / Edward R. Oshel, Paula J. Stevenson, Christian HeipkeNuméro de notice : 12106 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Recueil / ouvrage collectif Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=40171 Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 12106-01 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible 12106-02 K321 Livre Saint-Mandé Dépôt en unité Exclu du prêt ISPRS commission 3 symposium, Spatial information from digital photogrammetry and computer vision, September 5 - 9, 1994, Munich, Germany, 2. Proceedings / Heinrich Ebner (1994)PermalinkISPRS commission 3 symposium, Spatial information from digital photogrammetry and computer vision, September 5 - 9, 1994, Munich, Germany, vol 1. Proceedings / Heinrich Ebner (1994)PermalinkDigital photogrammetric systems / Heinrich Ebner (1991)PermalinkIntegration von Bildzuordnung, Punktbestimmung, Oberflächenrekonstruktion und Orthoprojektion innerhalb der digitalen Photogrammetrie / Christian Heipke (1990)Permalink