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An automatic parameter selection procedure for pushbroom sensor models on imaging satellites / Inseong Jeong in Photogrammetric Engineering & Remote Sensing, PERS, vol 80 n° 2 (February 2014)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 80 n° 2 (February 2014) . - pp 171 - 178 Titre : An automatic parameter selection procedure for pushbroom sensor models on imaging satellites Type de document : Article/Communication Auteurs : Inseong Jeong, Auteur ; James Bethel, Auteur Année de publication : 2014 Article en page(s) : pp 171 - 178 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] analyse comparative [Termes IGN] capteur en peigne [Termes IGN] capteur spatial [Termes IGN] procédure opérationnelle Résumé : (Auteur) For the rigorous, physical modeling of spaceborne, push-broom imaging sensors, over-parameterization and the resulting dependencies among sensor model parameters are a continuing issue causing instability and ambiguity during parameter estimation. Traditionally, this problem hat been tackled by a fixed subset approach or by using a priori stochastic constraints, which generally require the user's intuition or intervention but with no guarantee that an optima, solution is obtained. An efficient and automated procedure to find an optimal parameter subset, that is independent and meets accuracy requirements, has been developed and tested using six images from six representative sensors. The experimental results show a stable performance of the developed procedure which results in a quality subset by the evaluation criteria and tries to minimize the checkpoint misclosure (i.e., loocvrmse) so that the resulting subset can be considered optimum. Therefore, the proposed procedure can be beneficial to the users and sensor model developers by providing an optimal and subjective solution to the well known over-parameterization problem in satellite sensor model. Numéro de notice : A2014-110 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.80.2.171-178 En ligne : https://doi.org/10.14358/PERS.80.2.171-178 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33015 [article]

A study of trajectory models for satellite image triangulation / Inseong Jeong in Photogrammetric Engineering & Remote Sensing, PERS, vol 76 n° 3 (March 2010)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 76 n° 3 (March 2010) . - pp 265 - 276 Titre : A study of trajectory models for satellite image triangulation Type de document : Article/Communication Auteurs : Inseong Jeong, Auteur ; J. Bethel, Auteur Année de publication : 2010 Article en page(s) : pp 265 - 276 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] image ALOS-PRISM [Termes IGN] image EO1-Hyperion [Termes IGN] image EROS [Termes IGN] image Quickbird [Termes IGN] image SPOT-HRV [Termes IGN] image Terra-ASTER [Termes IGN] implémentation (informatique) [Termes IGN] orbite [Termes IGN] point d'appui [Termes IGN] spatiotriangulation Résumé : (Auteur) Many spaceborne imagery products are provided with metadata or support data having diverse types, representations, frequencies, and conventions. According to the variability of metadata, a compatible physical sensor model approach must be constructed. Among the three component of the sensor model, i.e., trajectory model, projection equations, and parameter subset selection, the construction of the position and attitude trajectory is closely linked with the availability and type of support data. In this paper, we show how trajectory models can be implemented based on support data from six satellite image types: QuickBird, Hyperion, SPOT-3, ASTER. PRISM, and EROS-A. Triangulation for each image is implemented to investigate the feasibility and suitability of the different trajectory models. The results show the effectiveness of some of the simple models while indicating that careful use of dense ephemeris information is necessary. These results are based on having a number of high quality ground control points. Copyright ASPRS Numéro de notice : A2010-088 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.76.3.265 En ligne : https://doi.org/10.14358/PERS.76.3.265 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30284 [article]