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Titre : OEEPE Project on topographic mapping from high resolution space sensors Type de document : Rapport Auteurs : David A. Holland, Auteur ; Bob Guilford, Auteur ; Keith J. Murray, Auteur Editeur : Organisation Européenne d'Etudes Photogrammétriques Expérimentales OEEPE Année de publication : 2002 Collection : Official Publication OEEPE, ISSN 0257-0505 num. 44 ISBN/ISSN/EAN : 978-3-89888-865-3 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie spatiale
[Termes IGN] changement d'occupation du sol
[Termes IGN] détection de changement
[Termes IGN] modèle numérique de surface
[Termes IGN] occupation du sol
[Termes IGN] utilisation du solIndex. décimale : 33.40 Photogrammétrie spatiale Note de contenu : 1 Introduction
2 Test sites and test data
3 Summaries of the Reports
3.1 Work Package 1 - Topographic mapping from high resolution space sensors
3.2 Work Package 2 - DEM generation
3.3 Work Package 3 - Automatic change detection
3.4 Work Package 4 - Automatic land use classification
3.4 Work Package 5 - Software
4 Implications and key issues
5 Conclusions
6 RecommendationsNuméro de notice : 17074 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Rapport Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79323 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 17074-01 33.40 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Documents numériques
en open access
Oeepe Project on topographic mappingAdobe Acrobat PDF
Titre : The OEEPE Geosar test of Geocoding ERS-1 SAR data Type de document : Rapport Auteurs : Ian J. Dowman, Auteur Editeur : Francfort sur le Main : Institut für Angewandte Geodäsie Année de publication : 1996 Collection : Official Publication OEEPE, ISSN 0257-0505 num. 32 Importance : 126 p. Format : 17 x 25 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie spatiale
[Termes IGN] géoréférencement
[Termes IGN] image ERS-SAR
[Termes IGN] image radarIndex. décimale : 33.40 Photogrammétrie spatiale Résumé : (Auteur) The OEEPE (Organisation Européenne d'Etudes Photogrammétriques Expérimentales) has collaborated with the GeoSAR working group' to prepare and carry out a test to compare different methods of geocoding ERS1 SAR data and of the application of geocoded SAR data to topographic mapping. ESA has supported the test by providing the data and The German Aerospace Research Establishment (DLR) has copied and distributed the data. HAG provided additional data for the phase 2 work, this included KFA1000 photography, Thematic Mapper data and a digital elevation model (DEM).The test site is around Frankfurt am Main in Germany and 4 ERS1 images have been provided together with two DEMs and ground control information. 20 organisations from Europe and North America expressed an interest in the test and data was sent to 14 of them. Reports from some of these were presented at the 4th GeoSAR workshop. This report sets out the objectives of the test and describes the data which was provided. The methods and results of the participants are summarised and papers are included in the appendices which give more detail. The test concludes that high accuracy can be achieved from geocoding when compared to maps but that the information content for mapping is limited. Numéro de notice : 66147 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Rapport d'étude technique Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=61568 Exemplaires(3)
Code-barres Cote Support Localisation Section Disponibilité 66147-01 33.40 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible 66147-03 33.40 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible 66147-02 33.40 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Experimente zur GPS-gestützten Aerotriangulation unter besonderer Berücksichtigung systematischer Einflüsse / C. Schwiertz (1994)
Titre : Experimente zur GPS-gestützten Aerotriangulation unter besonderer Berücksichtigung systematischer Einflüsse Titre original : [Expériences pour une aérotriangulation basée sur le GPS en considérant particulièrement les influences systématiques] Type de document : Monographie Auteurs : C. Schwiertz, Auteur Editeur : Munich : Universität der Bundeswehr Année de publication : 1994 Collection : Schriftenreihe des Instituts für Geodäsie, ISSN 0173-1009 num. 48 Importance : 190 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Photogrammétrie spatiale
[Termes IGN] aérotriangulation
[Termes IGN] densité des points
[Termes IGN] GPS en mode cinématique
[Termes IGN] point d'appuiIndex. décimale : 33.40 Photogrammétrie spatiale Résumé : (Auteur) Kinematic GPS-positioning enables the determination of the eccentric positions of exposure during a photo flight. Introducing these positions in an extended bundle adjustment makes it possible to reduce the number of ground control points necessary in classical mode to a minimum. This thesis concentrates on three main topics to reveal various advantages and problems concerning the combined adjustment of photogrammetric data and GPS-positions. In outline, the main results are as follows:
The influence of systematic errors
It is well known that exposure stations tend to compensate errors ill the photogrammetric block. In GPS-controlled blocks the exposure stations are virtually fixed in space. Remaining systematic errors will result in block deformation. The theoretical investigations show that the method of self-calibration becomes more important in this case. On the other hand, a more realistic determination of additional parameters and of the elements of interior orientation would be possible by GPS-supported aerial triangulation.
The datum problem
The datum problem is caused by the fact that GPS-derived positions are related to a global earth fixed coordinate system (e.g. WGS84), but the results of the photogrammetric point determination are preferably wanted ill a regional national reference system. The problem is solved ill GPS-supported aerial triangulation with control points as usual. For the needs of practicality and for the sake of accuracy, it is recommended to use control points and to determine the datum parameters by a combined adjustment. Some examinations using simulated data show that this is possible based only oil one control point. In such a case, additional geometric information -especially height information- would assist in limiting the loss of accuracy.
Mathematical models for GPS-supported aerial triangulation
At the onset of the discussion, different mathematical models for the integration of GPSderived coordinates of the perspective centres ill bundle adjustment are reviewed. These models contain additional parameters for modelling constant and time dependant trends ill GPS-positions.
Furthermore, a new model is presented which allows the formulation of a 'time-dependant' bundle adjustment. The calculation of the camera positions based on the GPS-positions and the recorded times of exposure is integrated in the combined adjustment. In marginal cases, exact knowledge of the times of exposure is no longer necessary.
The main advantage of all these models is that the influence of errors in GPS-data or in time recording can be mitigated during extended bundle adjustment.
The efficiency of GPS-controlled bundle adjustment is demonstrated by the results of two test flights carried out in the year 1988 (Schwabmünchen, photo scale 1:14.000) and 1990 (Hambach, photo scale 1:4.500). The Hambach test flight in particular shows that the positions of exposure eau be determined by kinematic GPS at a tolerance of 2 to 4 cm. Concerning the point determination, it can be established that GPS-supported aerial triangulation with only a few control points is almost as accurate as the conventional method.
Contrary to other test sites, investigated elsewhere, that were located in fairly flat terrain, t lie test area at Hambach shows great differences in height. This caused some problems for height deter mina ion in the CPS-supported mode when only a few control points were used, as there is a high correlation with the focal length computed by self calibration.Numéro de notice : 61670 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=60963 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 61670-01 33.40 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Analytical calibration of the airborne photogrammetric system using a priori knowledge of the exposure station obtained from kinematic Global Positioning System techniques / Lewis A. Lapine (1991)
Titre : Analytical calibration of the airborne photogrammetric system using a priori knowledge of the exposure station obtained from kinematic Global Positioning System techniques Type de document : Thèse/HDR Auteurs : Lewis A. Lapine, Auteur Editeur : Colombus (Ohio) : Ohio State University Année de publication : 1991 Collection : Department of Geodetic Science and Surveying Reports num. 411 Importance : 188 p. Format : 21 x 27 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie spatiale
[Termes IGN] capteur aérien
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] GPS en mode cinématique
[Termes IGN] orientation externe
[Termes IGN] orientation interneIndex. décimale : 33.40 Photogrammétrie spatiale Résumé : (Auteur) The airborne photogrammetric system is a complex combination of measuring tools which form a system used predominantly in most modern mapping programs. Classic aerial photogrammetry relies on the projective transformation of known object space coordinates into the photo coordinate system, enforcing the condition of collinearity, in order to solve for the six unknown parameters of exterior orientation for each photograph. Errors due to the imperfect determination of the system calibration, particularly those errors related to the interior orientation elements of the camera lens system, propagate into the exterior orientation parameters due to the high correlation between the orientation parameters. Three of the exterior orientation parameters are the object space coordinates of the camera exposure station.
In the future, the position of the exposure station will be determined by very accurate navigation systems such as the NAVSTAR Global Positioning System (GPS). Direct measurement of the exposure station position has the potential of minimizing or totally eliminating the requirement for signalized control in the object space. The positions of object space points can be extrapolated from their image coordinates through the known position of the exposure station. The extrapolation accuracy will be highly dependent on the precise calibration of the entire airborne system under normal operating conditions.
Kinematic GPS techniques provide the means to accurately position the airborne system over a dense set of signalized geodetic control points so that the entire airborne can be calibrated in the environment which it normally operates. This research instrumented the calibration technique, analyzed obvious sources of systematic error, and demonstrated the technique by calibrating an airborne system. The lens system, as well as aircraft induced systematic errors, were modeled and verified. Certain systematic errors would not otherwise have been determined by normal laboratory calibrations.
The airborne calibration improved the overall performance of the system. Relative positional accuracies of 5 cm were achieved for targeted object space points. These accuracies were achieved from photography obtained at an altitude of 2100 m above the ground at speeds in excess of 80 meters per second without any knowledge of the object space coordinates.Numéro de notice : 12094 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Note de thèse : PhD thesis : Ohio State University : 1991 DOI : sans Accessibilité hors numérique : Non accessible via le SUDOC Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=54524 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 12094-01 33.40 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Simulation d'images de Mars pour le projet VAP et évaluation des modèles numériques de terrains dérivés / Patrick Julien (1991)
Titre : Simulation d'images de Mars pour le projet VAP et évaluation des modèles numériques de terrains dérivés : rapport au CNES Type de document : Rapport Auteurs : Patrick Julien , Auteur
Editeur : Paris : Institut Géographique National - IGN (1940-2007) Année de publication : 1991 Collection : Publications du COGIT Importance : 26 p. Format : 21 x 30 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Photogrammétrie spatiale
[Termes IGN] corrélation automatique de points homologues
[Termes IGN] image numérique
[Termes IGN] Mars (planète)
[Termes IGN] modèle numérique de terrain
[Termes IGN] simulation d'image
[Termes IGN] véhicule automobileIndex. décimale : 33.40 Photogrammétrie spatiale Numéro de notice : 60503 Affiliation des auteurs : COGIT (1988-2011) Thématique : IMAGERIE Nature : Rapport DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=44193 Exemplaires(3)
Code-barres Cote Support Localisation Section Disponibilité 60503-01 33.40 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible 60503-02 33.40 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible 60503-03 K321 Livre LASTIG Dépôt en unité Exclu du prêt PermalinkPermalinkPermalinkPermalinkExpériences franco-canadiennes sur la spatiotriangulation, la précision planimétrique et altimétrique / Isabelle Veillet (13/10/1988)
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