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Sensor modeling, self-calibration and accuracy testing of panoramic cameras and laser scanners / J. Amiri Parian in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 1 (January - February 2010)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 65 n° 1 (January - February 2010) . - pp 60 - 76 Titre : Sensor modeling, self-calibration and accuracy testing of panoramic cameras and laser scanners Type de document : Article/Communication Auteurs : J. Amiri Parian, Auteur ; Armin W. Gruen, Auteur Année de publication : 2010 Article en page(s) : pp 60 - 76 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] auto-étalonnage [Termes IGN] chambre panoramique [Termes IGN] étalonnage d'instrument [Termes IGN] étalonnage de chambre métrique [Termes IGN] lasergrammétrie [Termes IGN] modélisation géométrique de prise de vue [Termes IGN] télémètre laser terrestre Résumé : (Auteur) Terrestrial Linear Array CCD-based panoramic cameras have been used for purely imaging purposes, but they also have a high potential for use in high accuracy measurement applications. The imaging geometry and the high information content of those images make them suitable candidates for quantitative image analysis. For that a particular sensor model has to be established and the inherent accuracy potential has to be investigated. We developed a sensor model for terrestrial Linear Array-based panoramic cameras by means of a modified bundle adjustment with additional parameters, which models substantial deviations of a real camera from the ideal one. We used 3D straight-line information in addition to tie points to conduct a full calibration and orientation without control point information. Due to the similarity of the operation of laser scanners to panoramic cameras the sensor model of the panoramic cameras was extended for the self-calibration of laser scanners. We present the joint sensor model for panoramic cameras and laser scanners and the results of self-calibration, which indicate a subpixel accuracy level for such highly dynamic systems. Finally we demonstrate the systems’ accuracy of two typical panoramic cameras in 3D point positioning, using both a minimal number of control points and a free network adjustment. With these new panoramic imaging devices we have additional powerful sensors for image recording and efficient 3D object modeling. Numéro de notice : A2010-230 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2009.08.005 En ligne : https://doi.org/10.1016/j.isprsjprs.2009.08.005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30424 [article]

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