Descripteur
Termes IGN > sciences naturelles > physique > métrologie > étalonnage > étalonnage d'instrument > étalonnage de capteur (imagerie)
étalonnage de capteur (imagerie)Voir aussi |
Documents disponibles dans cette catégorie (386)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Close range photogrammetry and machine vision / Keith B. Atkinson (2001)
Titre : Close range photogrammetry and machine vision Type de document : Monographie Auteurs : Keith B. Atkinson, Éditeur scientifique Editeur : Caithness : Whittles Publishing Année de publication : 2001 Importance : 370 p. Format : 15 x 23 cm ISBN/ISSN/EAN : 978-1-870325-73-8 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] archéométrie
[Termes IGN] architecture
[Termes IGN] calibrage
[Termes IGN] capteur (télédétection)
[Termes IGN] chambre DTC
[Termes IGN] détecteur à transfert de charge
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] médecine humaine
[Termes IGN] méthode des moindres carrés
[Termes IGN] photogrammétrie métrologique
[Termes IGN] photogrammétrie numérique
[Termes IGN] secteur secondaireIndex. décimale : 33.30 Photogrammétrie numérique Résumé : (Editeur) Over the past decade, advances in the field of close-range photogrammetry have been rapid and the era of digital photogrammetry is well on its way. This book provides a complete account of the subject, and presents the methodology, algorithms, techniques and equipment. Note de contenu : Introduction; Theory of close range photogrammetry; Fundamentals of digital photo-grammetry; Digital close range photogrammetry; development of methodology and systems; Sensor technology for real-time photogrammetry; Camera calibration; Vision-based automated 3-D measurement techniques; Least squares matching: a fundamental measurement algorithm; Network design; Architectural and archaeological photogrammetry; Medical photogrammetry; Industrial measurement applications Numéro de notice : 10134 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Recueil / ouvrage collectif DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=39756 Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 10134-01 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Development of a solar spectro-irradiometer for the validation of remotely sensed hyperspectral images / A. Barducci (2001)
Titre : Development of a solar spectro-irradiometer for the validation of remotely sensed hyperspectral images Type de document : Article/Communication Auteurs : A. Barducci, Auteur ; P. Marcoionni, Auteur ; I. Pippi, Auteur ; M. Poggesi, Auteur Editeur : Lisse et Amsterdam : Balkema (August Aimé) Année de publication : 2001 Conférence : EARSeL 2001, 21st international symposium, Observing our environment from space : news solutions for a new millennium 14/05/2001 16/05/2001 Paris France Importance : pp 197 - 202 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] éclairement énergétique
[Termes IGN] étalonnage radiométrique
[Termes IGN] image hyperspectrale
[Termes IGN] modèle de transfert radiatif
[Termes IGN] spectroradiomètreRésumé : (Auteur) The main troubles affecting the application of remote sensing are connected with the radiometric calibration of the sensor signal as well as with the physical parameters to be used for the radiative transfer modelling through the atmosphere. In order to overcome these problems, we are developing two new instruments to be used for in-field measurements devoted to the validation of remotely sensed hyperspectral images. The main instrument is a solar spectro-irradiometer, operated in the imaging-spectrometer mode, that samples the impinging irradiance with 7 nm of spectral resolution and a digitalisation accuracy of 10 bit. The 256 independent samples held in the measured spectrum are acquired with a sampling step of about 3.0 nm and cover the range from 200 nm up to 950 nm of wavelength. From this original instrument we have also derived a spectro-radiometer having similar spectral characteristics. In this paper, we discuss the development of the main common spectrometer and describe the experimental activity carried out for its calibration. Preliminary experimental data are shown and thoroughly analysed. Numéro de notice : C2001-029 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Communication DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64937 Genauigkeitsuntersuchungen zur GPS/INS-Integration in der Aerophotogrammetrie / Michael Cramer (2001)
Titre : Genauigkeitsuntersuchungen zur GPS/INS-Integration in der Aerophotogrammetrie Titre original : [Recherches de l'exactitude pour l'intégration GPS/INS en photogrammétrie aérienne] Type de document : Thèse/HDR Auteurs : Michael Cramer, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 2001 Collection : DGK - C Sous-collection : Dissertationen num. 537 Importance : 120 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9576-2 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] aérotriangulation
[Termes IGN] centrale inertielle
[Termes IGN] élément d'orientation externe
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] filtre de Kalman
[Termes IGN] géoréférencement direct
[Termes IGN] GPS-INS
[Termes IGN] image aérienne
[Termes IGN] orientation du capteur
[Termes IGN] orientation externe
[Termes IGN] point de vérification
[Termes IGN] précision de localisation
[Termes IGN] prise de vue aérienne
[Termes IGN] recouvrement d'imagesIndex. décimale : 33.30 Photogrammétrie numérique Résumé : (Auteur) Within this thesis different approaches for the direct measurement of exterior orientation elements of airborne sensors using integrated GPS/INS modules are investigated. The main focus is laid on the analysis of the accuracy potential of a commercially available integrated GPS/INS module using the "standard" approach for direct georeferencing : the integration of continuously recorded GPS and INS data in a Kalman filter approach. This method, originally developed for navigation purposes, is compared to a more straightforward strip-wise approach, which allows, in combination with an imaging sensor, the direct orientation determination even for short time intervals and data segments during photogrammetric strips. Beforehand, the basic principles of GPS/INS integration and the different system-characteristics of GPS and INS are summarized.
The two different approaches for GPS/INS integration mentioned before are investigated on their accuracy performance. For the accuracy analysis the GPS/INS module was combined with a standard analogue aerial camera and flown over a well controlled photogrammetric test site. Utilizing the standard approach of indirect image orientation applying the method of aerial triangulation independent exterior orientations for the discrete camera air stations are obtained and can be used for the estimation of the accuracy potential from GPS/INS. For tile tested commercial GPS/INS module the obtained quality of directly measured orientation elements in an operational airborne environment was about ~10cm for the positioning and ~15” for the attitude. Using the GPS/INS exterior orientations for direct georeferencing without ground control an accuracy of about 8-11µm and 15-23µm in image space is obtained for horizontal and vertical components, respectively. Transferring the accuracy on medium scale photo flight from an altitude of about 2000m above ground, object points are determined with an accuracy of 10-20cm for the horizontal and 20-30cm for the vertical coordinates. This accuracy even holds for the photogrammetrically problematic case of single flight lines. The use of stronger image overlap is of positive influence on the quality of object point determination. Using the second approach of strip-wise GPS/INS evaluation in a combined AT approach similar accuracy is obtained from the same data set. Therefore, this approach offers an alternative orientation method for imaging sensors in case of non-continuously recorded INS data.
The accuracy potential of GPS/INS integration is dependent on the quality of the used sensors and the quality of the GPS update information. The influence of the remaining errors in GPS/INS positions and attitudes on the object point determination is related on the actual flying height. For large scale imagery recorded from lower altitudes positioning errors are of major influence, whereas for higher altitudes remaining attitude errors are the main part of the error budget. Additionally, the overall system quality including the GPS/INS orientation components and the imaging sensor is strongly dependent on the correct overall system calibration. Within this context system calibration is not only restricted on the correct determination of the time and spatial eccentricities between the different sensor components but the calibration of the imaging sensor itself is of major importance. Since there is no possibility of subsequent self-calibration in direct georeferencing, every difference between the assumed mathematical model and the true physical environment during data recording will cause errors in object space. Within the analyzed data set scale dependent errors in the vertical coordinate are present. which could be modelled by slightly modifying the camera focal length used for data evaluation.
The obtained empirical accuracy is of major interest for the subsequent operational use of direct georeferencing in a standard photogrammetric environment. Due to this, the GPS/INS orientation accuracy is calculated using different baseline lengths between aircraft and reference station and varying image overlap and block geometry. Additionally, the influence of interpolation errors on varying data rates used for GPS/INS trajectory computations is estimated. Against the background of direct georeferencing using GPS/INS in photogrammetric practice - without ground control in the ideal case - the overall system requirements are discussed. In the final part of this thesis the possible future use of direct GPS/INS orientation measurements in photogrammetric practice is pointed out.Numéro de notice : 27826 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère DOI : sans En ligne : https://www.ifp.uni-stuttgart.de/dokumente/Dissertationen/Cramer_Diss.pdf Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=56450 Réservation
Réserver ce documentExemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 27826-02 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible 27826-01 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Traitement des images de RSO [Radar à Synthèse d'0uverture] / Henri Maître (2001)
Titre : Traitement des images de RSO [Radar à Synthèse d'0uverture] Type de document : Guide/Manuel Auteurs : Henri Maître, Auteur Editeur : Paris : Hermès Année de publication : 2001 Collection : Traitement du Signal et de l'Image Importance : 348 p. Format : 16 x 24 cm ISBN/ISSN/EAN : 978-2-7462-0155-2 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] chatoiement
[Termes IGN] classification bayesienne
[Termes IGN] détection de contours
[Termes IGN] étalonnage radiométrique
[Termes IGN] filtrage du rayonnement
[Termes IGN] géoréférencement
[Termes IGN] image radar
[Termes IGN] image radar moirée
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] polarisation
[Termes IGN] radar à antenne synthétique
[Termes IGN] radarclinométrie
[Termes IGN] radargrammétrie
[Termes IGN] rayonnement électromagnétique
[Termes IGN] réflectivité
[Termes IGN] restauration d'image
[Termes IGN] rétrodiffusion
[Termes IGN] surface de la mer
[Termes IGN] télédétection en hyperfréquence
[Termes IGN] traitement du signalIndex. décimale : 35.22 Télédétection en hyperfréquence - Traitement d'image radar Note de contenu : Introduction
1. Bases physiques de l'imagerie de radar à synthèse d'ouvertureNuméro de notice : 69171 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Manuel Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=49274 Réservation
Réserver ce documentExemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 69171-01 35.22 Livre Centre de documentation Télédétection Disponible 69171-02 35.22 Livre Saint-Mandé Dépôt en unité Exclu du prêt A multi-sensor system for airborne image capture and georeferencing / M.M.R. Mostafa in Photogrammetric Engineering & Remote Sensing, PERS, vol 66 n° 12 (December 2000)
[article]
Titre : A multi-sensor system for airborne image capture and georeferencing Type de document : Article/Communication Auteurs : M.M.R. Mostafa, Auteur ; K.P. Schwarz, Auteur Année de publication : 2000 Article en page(s) : pp 1417 - 1424 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] caméra numérique
[Termes IGN] élément d'orientation externe
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] étalonnage géométrique
[Termes IGN] géoréférencement direct
[Termes IGN] GPS-INS
[Termes IGN] image aérienne
[Termes IGN] orientation externe
[Termes IGN] photographie aérienneRésumé : (Auteur) The development and preliminary testing of a fully digital multi-sensor system for airborne remote sensing and geographic information system (GIS) applications is described. This system was developed at The University of Calgary in collaboration with The University of California at Berkeley, with aircraft and logistics support by HJW Inc., California. It integrates a medium class inertial navigation system (INS), two low-cost Global Positioning System (GPS) receivers, and a high resolution digital camera. During aerial image capture, camera exposure stations and INS digital records are time-tagged in real time by GPS. The INS/GPS-derived trajectory parameters describe the rigid body motion of the carrier ail-craft. Thus, they are directly related to the parameters of exterior orientation. During post-processing, these parameters are extracted, eliminating the need for ground control for airborne image acquisition applications. Flight tests were performed over a part of the university campus at Berkeley, using a strip photography approach to test the integrated system performance. In this paper, the concept of direct georeferencing of digital images without ground control is presented. System calibration results are then discussed in some detail, and special attention is given to the geometrical analysis of the system imaging component. An improved imaging system is proposed and validated by computer simulations. The potential of the new system for photogrammetric use is then discussed. The major applications of such a system will be in photo ecometrics; the mapping of utility lines, roads, and pipelines; and the generation of digital elevation models for engineering applications. Numéro de notice : A2000-218 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans En ligne : https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=01270670349cbdc4d [...] Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21633
in Photogrammetric Engineering & Remote Sensing, PERS > vol 66 n° 12 (December 2000) . - pp 1417 - 1424[article]Influence de la qualité de l'étalonnage géométrique sur la qualité des produits à valeur ajoutée / Patrick Gigord in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 159 (Juillet 2000)PermalinkEin hybrides Meßsystem zur Kalibrierung von Strichteilungen / O. Freide (2000)PermalinkSatellite-derived mapping [la cartographie basée sur l'imagerie satellitaire / Serge Le Blanc (2000)PermalinkCalibration status of the NOAA AVHRR solar reflectance channels / R.M. Mitchell (1999)PermalinkDreidimensionale Objektrekonstruktion mit digitalen Dreizeilenscannerdaten des Weltraumprojekts MOMS-02/D2 / W. Kornus (1999)PermalinkPermalinkPhysics in signal & image processing, optimizing signal & image processing by adequate modelling sensors and of their environments, PSIP'99, First International Symposium, Paris, France, 18-19 January 1999 / Société des électriciens et des électroniciens (1999)PermalinkRapport de la 14ème session (avril 1999) / Comite consultatif du temps et des frequences cctf (1999)PermalinkPrincipal point behaviour and calibration parameter models for kodak DCS cameras / M.R. Shortis in Photogrammetric record, vol 16 n° 92 (October 1998 - March 1999)PermalinkThe principal point and CCD cameras / T.A. Clarke in Photogrammetric record, vol 16 n° 92 (October 1998 - March 1999)Permalink