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Photogrammetric week' 2003, Vol 2. Tutorium PHOWO 2003 photogrammetry and 3d visualisation, added value and visions / Dieter Fritsch (2003)
Titre de série : Photogrammetric week' 2003, Vol 2 Titre : Tutorium PHOWO 2003 photogrammetry and 3d visualisation, added value and visions Type de document : Actes de congrès Auteurs : Dieter Fritsch, Éditeur scientifique ; Institut für Photogrammetrie der Universität Stuttgart (Stuttgart, Allemagne), Producteur Editeur : Stuttgart : Institüt für Photogrammetrie der Universität Stuttgart Année de publication : 2003 Conférence : PhoWo 2003, 49th Photogrammetric Week Stuttgart Allemagne OA Proceedings Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] acquisition de données
[Termes IGN] appareil portable
[Termes IGN] caméra numérique
[Termes IGN] données localisées 3D
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] réalité virtuelle
[Termes IGN] temps réel
[Termes IGN] texture d'image
[Termes IGN] visualisation 3DIndex. décimale : MULTIM Cédéroms et DVD Numéro de notice : 15133B Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Actes Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64088 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15133-01B MULTIM Cédérom Centre de documentation Indéterminé Disponible Real time volcano activity mapping using ground-based digital imagery / K. Honda in ISPRS Journal of photogrammetry and remote sensing, vol 57 n° 1-2 (November - December 2002)
[article]
Titre : Real time volcano activity mapping using ground-based digital imagery Type de document : Article/Communication Auteurs : K. Honda, Auteur ; M. Nagai, Auteur Année de publication : 2002 Article en page(s) : pp 159 - 168 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique
[Termes IGN] caméra numérique
[Termes IGN] cartographie des risques
[Termes IGN] chambre métrique
[Termes IGN] éruption volcanique
[Termes IGN] modèle numérique de surface
[Termes IGN] orthoimage
[Termes IGN] risque naturel
[Termes IGN] surveillance géologique
[Termes IGN] système d'information géographique
[Termes IGN] temps réel
[Termes IGN] thermographie
[Termes IGN] volcanRésumé : (Auteur) The mapping of volcanic activity such as lava and pyroclastic flows and mudflows on a real-time basis during eruptions is very important for event monitoring and prediction for disaster mitigation. These events are usually dynamic and of short duration. In this paper, a real-time volcanic activity mapping system utilizing a single ground-based digital camera is described. This automatic system, which produces ortho-images as a final output from digital landscape images, is designed for real-time monitoring. Each recorded image is first rectified to a reference image generated from a DEM of the volcano. This produces a textured image of known location and orientation. The rectification is carried out by matching between the common skyline edge that appears both in the digital landscape image and in the reference image. The rectified landscape image is then converted to an ortho-image map using the same DEM of the volcano. Through this system, ortho-image maps showing volcanic activity are automatically generated in real-time. This helps chronological short-term change analysis of volcanic activity. Also, volcanic activities mapped by the system can be analysed by volcanologists to assist in any disaster prevention associated with a volcanic eruption. Copyright ISPRS Numéro de notice : A2002-362 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0924-2716(02)00112-0 En ligne : https://doi.org/10.1016/S0924-2716(02)00112-0 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22273
in ISPRS Journal of photogrammetry and remote sensing > vol 57 n° 1-2 (November - December 2002) . - pp 159 - 168[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-02042 RAB Revue Centre de documentation En réserve L003 Disponible 081-02041 RAB Revue Centre de documentation En réserve L003 Disponible Look beneath the surface with augmented reality / G. Roberts in GPS world, vol 13 n° 2 (February 2002)
[article]
Titre : Look beneath the surface with augmented reality Type de document : Article/Communication Auteurs : G. Roberts, Auteur ; et al., Auteur Année de publication : 2002 Article en page(s) : pp 14 - 20 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] cable
[Termes IGN] caméra numérique
[Termes IGN] canalisation
[Termes IGN] carrière souterraine
[Termes IGN] géoréférencement direct
[Termes IGN] GPS-INS
[Termes IGN] image vidéo
[Termes IGN] lever souterrain
[Termes IGN] photographie terrestre
[Termes IGN] réalité augmentée
[Termes IGN] réseau d'assainissement
[Termes IGN] réseau d'énergie
[Termes IGN] réseau de distribution d'eau
[Termes IGN] réseau de drainage
[Termes IGN] réseau de télécommunication
[Termes IGN] système d'information géographiqueRésumé : (Auteur) Field engineers and excavators may soon get sub-surface perspectives of cables, pipes, and other buried items from a new set of binoculars combining GPS, inertial systems, GIS, and a digital video camera. Numéro de notice : A2002-014 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21931
in GPS world > vol 13 n° 2 (February 2002) . - pp 14 - 20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 067-02021 RAB Revue Centre de documentation En réserve L003 Disponible Konzeption, Entwicklung und Erprobung eines digitalen integrierten flugzeuggetragenen Fernerkundungssystems für Precision Farming (PFIFF) / Görres Grenzdorffer (2002)
Titre : Konzeption, Entwicklung und Erprobung eines digitalen integrierten flugzeuggetragenen Fernerkundungssystems für Precision Farming (PFIFF) Titre original : [Conception, développement et expérimentation d'un système de télédétection intégré numérique aéroporté pour l'agriculture de précision] Type de document : Thèse/HDR Auteurs : Görres Grenzdorffer, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 2002 Collection : DGK - C Sous-collection : Dissertationen num. 552 Importance : 142 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9591-5 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] aérotriangulation automatisée
[Termes IGN] agriculture de précision
[Termes IGN] angle de visée
[Termes IGN] caméra numérique
[Termes IGN] centrale inertielle
[Termes IGN] géoréférencement direct
[Termes IGN] GPS-INS
[Termes IGN] image RVB
[Termes IGN] orientation du capteur
[Termes IGN] orientation externe
[Termes IGN] orientation interne
[Termes IGN] point d'appui
[Termes IGN] récepteur GPSIndex. décimale : 35.10 Acquisition d'images Résumé : (Auteur) “The introduction of GPS will change the crop production as deeply as the turn of a horse plough to the tractor in the 20th century" Prof. Ewald Schnug, 1996 A prerequisite for the success of precision farming is the determination of the heterogeneity of the soil and the crops within a field. Here comes remote sensing into play, because from the birds view the farmer becomes actual and detailed information of the surface of his fields. With this detailed and current information and other data the farmer or scientist is able to make site-specific decisions. The appropriate acquisition time is crucial for the documentation and the analysis of the canopy development. The biggest handicaps of optical remote sensing in our latitudes are uncertain and rapidly changing weather conditions. The comparison of potential days for airborne surveys and available satellite scenes revealed that the possibilities for airborne systems are many times better than for satellite systems. Due to image acquisition possibilities, the turn around time. The ground resolution and additional information flexible digital low-cost remote sensing systems such as PFIFF are very well suited for as an additional management instrument for the farmer and to support site specific treatments in an offline approach. For the efficient use of a small aircraft with a ground hole a GPS based flight management system is necessary. Thereby tools for survey planning, survey navigation, automatic triggering and the recording of the parameters of the exterior orientation during the aerial survey were developed.
For the use of a digital camera in aerial surveys not only the size of the CCD-sensor is important, but also many other criteria of the camera such as the exposure interval, the storage capacity. The preview options, the mechanical stability, the temporal eccentricity, the reliability and the radiometric properties have to be considered and determined. After thorough calibration modem high resolution digital cameras are well suitable for photogrammetric aerial applications. The parameters of the interior orientation for the Rollei DSP 104 were determined by a test field calibration. Thereby it became obvious, that due to the poor mechanical stability of the digital back pack the position of the principal point is variable, while the radial distortion and the focal length maintain relatively constant. The examination of the linearity, the spectral characteristics of the RGB band filters and the signal to noise ratio revealed that the radiometric properties of the digital camera are superior to an equivalent photographic system.
For the registration of the angles of the parameters of the exterior orientation cheap sensors were used and calibrated, because a high price inertial navigation system would undermine the low-cost system approach. The observed angles should be used as initial values for the automated image matching procedures. In detail a two axe inclination sensor which records the accelerations in the roll and pitch direction and an electronic fluxgate compass for the true heading angle were implemented in the attitude and heading reference system (AHRS).
The sensor system was tested in the lab as well as under airborne conditions with an additional geodetic GPS receiver and a multi antenna GPS on board of the aeroplane to explore the accuracy, potential for direct georeferencing of the system. Through the comparison of the exterior orientation parameters of both systems the absolute positional and angular accuracy of the GPS/AHRS-system could be determined. The accuracy assessment is complete because the residuals of the orientation parameters as well as calibration errors of the optical system and errors of the sensor orientation are incorporated in the difference vectors to the well known ground control point co-ordinates.
The co-ordinate quality of the Garmin-GPS receiver is sufficient to initiate an automated aerotriangulation, even if the co-ordinates can not enhance the accuracy of the block in the triangulation process. In contrary to the GPS the directly determined values of the angular AHRS-sensors differed with 1° in pitch and 2.45° in roll and 14° in the heading angle, compared to the indirectly determined angles of the aerotriangulation. The problematical values of the compass are related to several factors, which could not be calibrated afterwards.
PFIFF has a high photogrammetric potential, which allows for an aerotriangulation without ground control points using a geodetic GPS receiver. However a prerequisite for an aerotriangulation without ground control points is a known interior orientation, because due to the lack of redundancy no simultaneous calibration is possible. At an image scale of 1:44.500 the accuracy of the test flight was in the sub pixel range, that means < 1 m positional accuracy on the ground. Between 1999 and 2001 single components and PFIFF as a whole was well tested in 31 aerial surveys with more than 3.500 images recorded.Numéro de notice : 13121 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=54889 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13121-01 35.10 Livre Centre de documentation En réserve M-103 Disponible Optical imagery from airborne & spaceborne: comparison of resolution, coverage for given ground pixel size / Gordon Petrie in Geoinformatics, vol 5 n° 1 (01/01/2002)
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Titre : Optical imagery from airborne & spaceborne: comparison of resolution, coverage for given ground pixel size Type de document : Article/Communication Auteurs : Gordon Petrie, Auteur Année de publication : 2002 Article en page(s) : pp 28 - 35 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] analyse comparative
[Termes IGN] caméra numérique
[Termes IGN] capteur à balayage
[Termes IGN] capteur aérien
[Termes IGN] capteur en peigne
[Termes IGN] capteur imageur
[Termes IGN] capteur optique
[Termes IGN] capteur spatial
[Termes IGN] chambre DTC
[Termes IGN] EROS
[Termes IGN] Ikonos
[Termes IGN] image à très haute résolution
[Termes IGN] image multibande
[Termes IGN] image optique
[Termes IGN] QuickbirdRésumé : (Auteur) As discussed in my article on imagers published in the april/may 2000 issue of Geoinformatics, over the last two or three years, the previous rather simple distinction between (i) analogue film cameras producing very high-resolution frame images from aiborne platforms ; and (ii) digital line scanners producing continuous strips of linescan imagery of markedly lower resolution from spaceborne platforms, is being replaced by a much more complex scenario. This is based on the very varied mixtures of technologies, geometries and platforms that are now becoming available through the introduction of the new types of digital imagers capable of being operated both from airborne and spaceborne platforms. Numéro de notice : A2002-272 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22183
in Geoinformatics > vol 5 n° 1 (01/01/2002) . - pp 28 - 35[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-02011 SL Revue Centre de documentation Revues en salle Disponible Saisie de la couverture neigeuse de sites avalancheux par des systèmes aéroportés / Julien Vallet (2002)PermalinkVision with non-traditional sensors, 26th workshop of the Austrian Association for Pattern Recognition (ÖAGM/AAPR), Graz, September 10 - 11, 2002 / Franz W. Leberl (2002)PermalinkL'aérotriangulation : aussi pour l'ADS40 / François Gervaix in XYZ, n° 89 (décembre 2001 - février 2002)PermalinkLes caméras numériques aéroportées / Michel Kasser in Géomètre, vol 2001 n° 11 (novembre 2001)PermalinkLa métrologie photogrammétrique numérique / F. Guillon in Géomètre, vol 2001 n° 11 (novembre 2001)PermalinkTraining for digital aerial survey and mapping: the potential and training aspects of medium format digital camera / R. Graham in GeoEurope, vol 10 n° 11 (01/11/2001)PermalinkDigital image georeferencing from a multiple camera system by GPS-INS / M.M. Mostafa in ISPRS Journal of photogrammetry and remote sensing, vol 56 n° 1 (May - June 2001)PermalinkL'ADS40 de LH systems ou la photogrammétrie en tout numérique / P. Fricker in XYZ, n° 86 (décembre 2001 - février 2002)PermalinkClose range photogrammetry and machine vision / Keith B. Atkinson (2001)PermalinkEvaluation d'un système de positionnement d'un véhicule sur route basé sur la fusion de données / E. Helou Helo (2001)Permalink