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Euroconférence SIG / Euroconference SIG (1996)
Titre : Euroconférence SIG : Union européenne Projet capital humain et mobilité Type de document : Actes de congrès Auteurs : Euroconference SIG, Auteur ; Université polytechnique de madrid, Auteur Editeur : Paris : Institut Géographique National - IGN (1940-2007) Année de publication : 1996 Conférence : Euroconference GIS 1996 18/09/1996 20/09/1996 Madrid Espagne Importance : 80 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] appareil de restitution
[Termes IGN] cadastre
[Termes IGN] mise à jour automatique
[Termes IGN] modèle numérique de terrain
[Termes IGN] photogrammétrie numériqueNuméro de notice : 10482 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : GEOMATIQUE/INFORMATIQUE Nature : Actes Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=34530 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 10482-01 CG.96 Livre Centre de documentation Congrès Disponible Proceedings of the OEEPE Workshop on application of digital photogrammetric workstations / Otto Koelbl (1996)
Titre : Proceedings of the OEEPE Workshop on application of digital photogrammetric workstations Type de document : Actes de congrès Auteurs : Otto Koelbl, Éditeur scientifique Editeur : Francfort sur le Main : Institut für Angewandte Geodäsie Année de publication : 1996 Collection : Official Publication OEEPE, ISSN 0257-0505 num. 33 Conférence : OEEPE 1996, Workshop on application of digital photogrammetric workstations 04/03/1996 06/03/1996 Lausanne Suisse Importance : 453 p. Format : 17 x 24 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] aérotriangulation
[Termes IGN] modèle numérique de terrain
[Termes IGN] numérisation
[Termes IGN] orthophotographie
[Termes IGN] photogrammétrie numérique
[Termes IGN] station de travail de photogrammétrie numériqueRésumé : (Editeur) These proceedings provide a review on the development and the practical application of digital photogrammetry. Thirty individually authored papers concentrate on the following topics : scanning ; aerial triangulation ; automatic derivation of a DTM ; orthophoto ; digital plotting ; logistics and integration of the system ; and financial aspects. Discussion revealed the efficiency of digital aerial triangulation and the advantages of incorporating matching techniques for the derivation of digital terrain models. Costs for orthophotos could be considerably reduced if the user concentrated on the application of digital data. The proceedings concluded that most mapping organisations use different equipment from vendors to meet their requirements. The exchange of digital data appears to be very cumbersome in such a platform environment, thus standards for image formats, transformation parameters and the orientation elements would be necessary. Numéro de notice : 66148 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Actes DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=36943 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 66148-01 CG.96 Livre Centre de documentation Congrès Disponible 66148-02 CG.96 Livre Centre de documentation Congrès Disponible
Titre : The development of VISAT : a mobile survey system for GIS applications Type de document : Thèse/HDR Auteurs : Naser El-Sheimy, Auteur Editeur : Calgary [Alberta - Canada] : University of Calgary Année de publication : 1996 Importance : 199 p. Format : 21 x 30 cm Note générale : bibliographie
A dissertation submitted to the Faculty of graduated studies in partial fulfillment of the requirements for the degree of Doctor of Philosophy, Department of Geomatics Engineering, Calgary, Alberta, Canada, 1996Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] capteur imageur
[Termes IGN] centrale inertielle
[Termes IGN] chambre DTC
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] géoréférencement
[Termes IGN] image 3D
[Termes IGN] instrument de photogrammétrie
[Termes IGN] récepteur GPS
[Termes IGN] restitution
[Termes IGN] système d'information géographiqueRésumé : (auteur) During the last decade, the demand for Geographic Information Systems (GIS) in management and design applications has greatly increased. The realization of a GIS in many application areas still suffers from data acquisition problems. To be of value to the user, a GIS must be updated regularity, so that the information in the database correctly represents the real world However, the acquisition of up-to-date GIS data by conventional survey techniques is prohibitive in cost and has therefore limited the applicability and usefullness of GIS to potential users. Described in this thesis is an attempt to overcome this problem by employing a mobile highway swey system and an associated workstation for georeferenced images. The total system consists of a data acquisition system, cailed VISAT, and a data processing system, called VISAT Station. in this thesis, only the first component will be addressed The data acquisition system has been designed and implemented in cooperation between The University of Calgary (UofC) and GEOFIT Inc. The system can be used to create and selectively update GIS databases very quickly and inexpensively. The system derives its name, VISAT, from the fact that it utilizes Video images, an INS system, and the GPS Satellite system. The system inteptes a cluster of Charge-Coupled- Devices (CCD) cameras, an Inertial Navigation System (INS), and Satellite receivers of the Global Positioning System (GPS). The system Cartier is currently a van, but the use of the system in airborne or marine mode can be realized in a similar way. For the van application, the overall objective was the development of a precise mobile highway survey system that could be operated at a speed of 60 km per hour and could achieve an accuracy of 0.3 m (RMS) with respect to the given control framework and a relative accuracy of 0.1 m (RMS) for points within a 35 m radius. This accuracy was required in all environments including inner cities, where a stand-alone GPS is not reliable. Sensor integration has been optimized to reliabiy reach the accuracy requirements in different environments. Data flow optimization has been done with the objective of facilitating the subsequent feature extraction process and transfer into a GIS mm. System testing indicates that highway velocities of 60 km/h can be maintaineci with adequate data transfer and target positioning in a post-processing mode with the VISAT Station software. Extensive tests in city centers, suburban areas, and rural areas have show that the run-to-run and the day-to-day repeatabiiity achieved is about 10 cm (RMS) in horizontal and about 5 cm (RMS) in height and that the expected absolute positionning accuracy of 30 cm is surpassed in many cases. Note de contenu : 1- Introduction
2- System overview
3- Georeferencing of multi-sensor data
4- System calibration
5- Three-dimensional computation using
6- Results and analysis
7- Summary, conclusions and recommendationsNuméro de notice : 24569 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Note de thèse : PhD Thesis : Geomatics Engineering : Calgary : Canada : 1996 En ligne : https://dspace.ucalgary.ca/bitstream/1880/29328/1/20734El-Sheimy.pdf Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92116 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24569-01 THESE Livre Centre de documentation Thèses Disponible 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 Réservation
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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 Un nouveau système de traitement d'images photogrammétriques / R. Schwebel in Géomètre, vol 1994 n° 10 (octobre 1994)
[article]
Titre : Un nouveau système de traitement d'images photogrammétriques Type de document : Article/Communication Auteurs : R. Schwebel, Auteur ; D. Kopf, Auteur Année de publication : 1994 Article en page(s) : pp 43 - 44 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Photogrammétrie
[Termes IGN] appareil de restitution photogrammétrique
[Termes IGN] logiciel de traitement d'image
[Termes IGN] numérisationNuméro de notice : A1994-014 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25718
in Géomètre > vol 1994 n° 10 (octobre 1994) . - pp 43 - 44[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 063-94101 RAB Revue Centre de documentation En réserve L003 Disponible Enquête auprès des utilisateurs sur les besoins en instrumentation photogrammétrique / Conseil national de l'information géographique (1994)PermalinkIntroduction à la photogrammétrie numérique / Otto Koelbl (06/09/1993)PermalinkPhotogrammétrie, cours 31 C2 / Anonyme (1993)PermalinkDigital photogrammetric systems / Heinrich Ebner (1991)PermalinkSurveying instruments and their operational principles / L. Fialovszky (1991)PermalinkA microcomputer-based general photogrammetric system / Paul-André Gagnon in Photogrammetric Engineering & Remote Sensing, PERS, vol 56 n° 5 (may 1990)PermalinkArchitecture and components of photogrammetric workstations / J.D. Bonjour in Photogrammetric record, vol 13 n° 75 (April - September 1990)PermalinkDigital plotters : current status and future developments / Ian J. Dowman in Photogrammetric record, vol 13 n° 75 (April - September 1990)PermalinkDétermination des variations d'altitude du glacier dans le passé par restitution photogrammétrique des cliches aériens disponibles / D. Roelly (1990)PermalinkL'image en 3 dimensions / L. Peretz (1990)PermalinkIntroduction aux méthodes photogrammétriques [Version 1.1] / Stéphane Rasse (1990)PermalinkPhotogrammétrie et systèmes d'information du territoire avec présentation des systèmes Intergraph, Kern, Prime Wild GIS, ZEISS / Otto Koelbl (1990)PermalinkSpot et la photogrammétrie analytique : solution de quelques problèmes - partie 2 : une méthode de calcul des coordonnées-image d'un point-sol en moins de 60 opérations élémentaires / Philippe Hottier in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 117 (Janvier 1990)PermalinkThe influence of temperature variations on the photo coordinates in an analytical plotter / A. Hogholen (1990)PermalinkThe design and development of a digital photogrammetric stereo workstation / P. Lohmann in ISPRS Journal of photogrammetry and remote sensing, vol 44 n° 4 (December 1989)PermalinkStereomicroscope photogrammetry for the measurement of small objects / H.L. Mitchell in Photogrammetric record, vol 13 n° 74 (October 1989 - March 1990)PermalinkDigital comparator correlator system (DCCS) / U.V. Helava in ISPRS Journal of photogrammetry and remote sensing, vol 44 n° 1 (September 1989)PermalinkA modern analytical stereoplotter integrated in a geographic information system / Ralf Bill (01/09/1989)PermalinkClose-range exploitation workstation / J.R. Williamson (02/04/1989)PermalinkDigital monoplotting, its potential and realisation / P. Stefanovic (02/04/1989)Permalink