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Fish-eye calibration and epipolar rectification / Saji Abraham in ISPRS Journal of photogrammetry and remote sensing, vol 59 n° 5 (August - October 2005)
[article]
Titre : Fish-eye calibration and epipolar rectification Type de document : Article/Communication Auteurs : Saji Abraham, Auteur ; Wolfgang Förstner, Auteur Année de publication : 2005 Article en page(s) : pp 278 - 288 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] correction d'image
[Termes IGN] couple stéréoscopique
[Termes IGN] étalonnage géométrique
[Termes IGN] étalonnage radiométrique
[Termes IGN] géométrie épipolaire
[Termes IGN] modèle mathématique
[Termes IGN] projectionRésumé : (Auteur) The paper describes calibration and epipolar rectification for stereo with fish-eye optics. While stereo processing of classical cameras is state of the art for many applications, stereo with fish-eye cameras have been much less discussed in literature. This paper discusses the geometric calibration and the epipolar rectification as pre-requisite for stereo processing with fish-eyes. First, it surveys mathematical models to describe the projection. Then the paper presents a method of generating epipolar images which are suitable for stereo-processing with a field of view larger than 1 SO' in vertical and horizontal viewing directions. One example with 3D-point measuring from real fish-eye images demonstrates the feasibility of the calibration and rectification procedure. Copyright ISPRS Numéro de notice : A2005-352 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2005.03.001 En ligne : https://doi.org/10.1016/j.isprsjprs.2005.03.001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27488
in ISPRS Journal of photogrammetry and remote sensing > vol 59 n° 5 (August - October 2005) . - pp 278 - 288[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-05031 SL Revue Centre de documentation Revues en salle Disponible Stability analysis and geometric calibration of off-the-shelf digital cameras / A. Habib in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 6 (June 2005)
[article]
Titre : Stability analysis and geometric calibration of off-the-shelf digital cameras Type de document : Article/Communication Auteurs : A. Habib, Auteur ; M. Morgan, Auteur Année de publication : 2005 Article en page(s) : pp 733 - 741 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] caméra numérique
[Termes IGN] chambre CMOS
[Termes IGN] chambre DTC
[Termes IGN] compensation par faisceaux
[Termes IGN] élément d'orientation interne
[Termes IGN] étalonnage géométrique
[Termes IGN] orientation interne
[Termes IGN] stabilitéRésumé : (Auteur) Recent developments of digital cameras in terms of the size of a Charged Coupled Device (CCD) and Complementary Metal Oxide Semiconductor (CMOS) arrays, as well as reduced costs, are leading to their applications in traditional and new photogrammetric, surveying, and mapping functions. Such cameras require careful calibration to determine their metric characteristics, as defined by the Interior Orientation Parameters (IOP), which are essential for any photogrammetric activity. Moreover, the stability of the estimated iop of these cameras over short and long time periods has to be analyzed and quantified. This paper outlines the incorporation of straight lines in a bundle adjustment procedure for calibrating off-the-shelf/low-cost digital cameras. A framework for automatic extraction of the straight lines in the images is also presented and tested. In addition, the research introduces new approaches for testing the camera stability, where the degree of similarity between reconstructed bundles using two sets of IOP is quantitatively evaluated. Experimental results with real data proved the feasibility of the line-based self-calibration approach. Analysis of the estimated IOP from various calibration sessions over long time periods revealed the stability of the implemented camera. Numéro de notice : A2005-221 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.71.6.733 En ligne : https://doi.org/10.14358/PERS.71.6.733 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27358
in Photogrammetric Engineering & Remote Sensing, PERS > vol 71 n° 6 (June 2005) . - pp 733 - 741[article]Influence of system calibration on direct sensor orientation / N. Yastikli in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 5 (May 2005)
[article]
Titre : Influence of system calibration on direct sensor orientation Type de document : Article/Communication Auteurs : N. Yastikli, Auteur ; Karsten Jacobsen, Auteur Année de publication : 2005 Article en page(s) : pp 629 - 633 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] antenne GPS
[Termes IGN] erreur aléatoire
[Termes IGN] erreur systématique
[Termes IGN] étalonnage d'instrument
[Termes IGN] étalonnage de capteur (imagerie)
[Termes IGN] GPS-INS
[Termes IGN] ligne de visée
[Termes IGN] modèle mathématique
[Termes IGN] orientation du capteur
[Termes IGN] orientation interne
[Termes IGN] positionnement par GPS
[Termes IGN] système de coordonnéesRésumé : (Auteur) The determination of object coordinates based on direct sensor orientation is an extrapolation from the projection centers to the ground coordinate system. Like any extrapolation, it is sensitive to random and systematic errors, as well as, to improper data handling. Direct sensor orientation is based on the combination of an Inertial Measurement System (IMU) and GPS. The GPS antenna, the IMU, and the imaging sensor are located in different positions, and the latter two have different orientations. Therefore, the calibration of all sensors and the relation between the sensors is of vital importance for precise ground positioning. The system calibration includes the determination of the boresight misalignment, the interior camera orientation, and the GPS antenna offset. A rigorous mathematical model is required. The inner orientation of the camera used has to be determined under flight conditions to achieve sufficient results. In this paper, the influence of the system calibration to the direct sensor orientation and improper data handling will be shown. Numéro de notice : A2005-183 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.71.5.629 En ligne : http://dx.doi.org/10.14358/PERS.71.5.629 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27320
in Photogrammetric Engineering & Remote Sensing, PERS > vol 71 n° 5 (May 2005) . - pp 629 - 633[article]MIRAS end-to-end calibration: application to SMOS L1 processor / I. Corbella in IEEE Transactions on geoscience and remote sensing, vol 43 n° 5 (May 2005)
[article]
Titre : MIRAS end-to-end calibration: application to SMOS L1 processor Type de document : Article/Communication Auteurs : I. Corbella, Auteur ; F. Torres, Auteur ; et al., Auteur Année de publication : 2005 Article en page(s) : pp 1126 - 1134 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] bruit (théorie du signal)
[Termes IGN] erreur
[Termes IGN] étalonnage radiométrique
[Termes IGN] Microwave Imaging Radiometer with Aperture Synthesis
[Termes IGN] radiomètre à hyperfréquence
[Termes IGN] reconstruction d'image
[Termes IGN] Soil Moisture and Ocean Salinity Mission
[Termes IGN] température de luminanceRésumé : (Auteur) End-to-end calibration of the Microwave Imaging Radiometer by Aperture Synthesis (MIRAS) radiometer refers to processing the measured raw data up to dual-polarization brightness temperature maps over the earth's surface, which is the level 1 product of the Soil Moisture and Ocean Salinity (SMOS) mission. The process starts with a self-correction of comparators offset and quadrature error and is followed by the calibration procedure itself. This one is based on periodically injecting correlated and uncorrelated noise to all receivers in order to measure their relevant parameters, which are then used to correct the raw data. This can deal with most of the errors associated with the receivers but does not correct for antenna errors, which must be included in the image reconstruction algorithm. Relative S-parameters of the noise injection network and of the input switch are needed as additional data, whereas the whole process is independent of the exact value of the noise source power and of the distribution network physical temperature. On the other hand, the approach relies on having at least one very well-calibrated reference receiver, which is implemented as a noise injection radiometer. The result is the calibrated visibility function, which is inverted by the image reconstruction algorithm to get the brightness temperature as a function of the director cosines at the antenna reference plane. The final step is a coordinate rotation to obtain the horizontal and vertical brightness temperature maps over the earth. The procedures presented are validated using a complete SMOS simulator previously developed by the authors. Numéro de notice : A2005-216 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2004.840458 En ligne : https://doi.org/10.1109/TGRS.2004.840458 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27353
in IEEE Transactions on geoscience and remote sensing > vol 43 n° 5 (May 2005) . - pp 1126 - 1134[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-05051 RAB Revue Centre de documentation En réserve L003 Disponible MIRAS reference radiometer: a fully polarimetric noise injection radiometer / A. Colliander in IEEE Transactions on geoscience and remote sensing, vol 43 n° 5 (May 2005)
[article]
Titre : MIRAS reference radiometer: a fully polarimetric noise injection radiometer Type de document : Article/Communication Auteurs : A. Colliander, Auteur ; S. Tauriainen, Auteur ; et al., Auteur Année de publication : 2005 Article en page(s) : pp 1135 - 1143 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] bruit (théorie du signal)
[Termes IGN] corrélation automatique de points homologues
[Termes IGN] étalonnage d'instrument
[Termes IGN] formule de Stokes
[Termes IGN] Microwave Imaging Radiometer with Aperture Synthesis
[Termes IGN] polarisationRésumé : (Auteur) A prototype reference radiometer for the Microwave lmaging Radiometer Using Aperture Synthesis (MIRAS) instrument of the Soil Moisture and Ocean Salinity satellite has been developed. The reference radiometer is an L-band fully polarimetric noise injection radiometer (NIR). The main purposes of the NIR are : 1) to provide precise measurement of the average fully polarimetric brightness temperature scene for absolute calibration of the MIRAS image map and 2) to measure the noise temperature level of the noise distribution network of the MIRAS for individual receiver calibration. The performance of the NIR is a decisive factor of the MIRAS performance. In this paper, we present the operation principles and calibration procedures of the NIR, a measurement technique called blind correlation making measurements of full Stokes vector possible with the noise injection method, and finally experimental results verifying certain aspects of the design. Numéro de notice : A2005-217 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2004.840667 En ligne : https://doi.org/10.1109/TGRS.2004.840667 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27354
in IEEE Transactions on geoscience and remote sensing > vol 43 n° 5 (May 2005) . - pp 1135 - 1143[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-05051 RAB Revue Centre de documentation En réserve L003 Disponible Continuous navigation: combining GPS with sensor-based dead reckoning / G.Z. Bronsen in GPS world, vol 16 n° 4 (April 2005)PermalinkOrtho-rectification of QuickBird satellite / F. Volpe in GEO: Geoconnexion international, vol 4 n° 4 (april 2005)PermalinkExtension of retrospective datasets using multiple sensors: an approach to radiometric intercalibration of Landsat TM and MSS data / Arno Röder in Remote sensing of environment, vol 95 n° 2 (30/03/2005)PermalinkDigital close range photogrammetry for measurement of soil erosion / D. Rieke-Zapp in Photogrammetric record, vol 20 n° 109 (March - May 2005)PermalinkInteroperability on time: GPS-Galileo offset will bias position / A. Moudrak in GPS world, vol 16 n° 3 (March 2005)PermalinkMetric capabilities of low cost digital cameras for close range surface measurement / Jim H. Chandler in Photogrammetric record, vol 20 n° 109 (March - May 2005)PermalinkAerial mapping by consumer camcoders / C.A. Rokhmana in GIM international, vol 19 n° 2 (February 2005)PermalinkTerra MODIS on-orbit spatial characterization and performance / X. Xiong in IEEE Transactions on geoscience and remote sensing, vol 43 n° 2 (February 2005)PermalinkAutomatisierte Auswertung und Kalibrierung von scannenden Messsystemen mit tachymetrischem Messprinzip / A. Rietdorf (2005)PermalinkCalibrage d’imageurs avec prise en compte des distorsions / Nicolas Cornille in Revue des Systèmes, RS - Instrumentation - Mesure - Métrologie, Série I2M, vol 4 n° 3 - 4 (01/01/2005)Permalink