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Insights into the affine model for high-resolution satellite sensor orientation / Clive Simpson Fraser in ISPRS Journal of photogrammetry and remote sensing, vol 58 n° 5-6 (July 2004)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 58 n° 5-6 (July 2004) . - pp 275 - 288 Titre : Insights into the affine model for high-resolution satellite sensor orientation Type de document : Article/Communication Auteurs : Clive Simpson Fraser, Auteur ; T. Yamakawa, Auteur Année de publication : 2004 Article en page(s) : pp 275 - 288 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] capteur (télédétection) [Termes IGN] géométrie affine [Termes IGN] géopositionnement tridimensionnel [Termes IGN] image Ikonos [Termes IGN] modélisation géométrique de prise de vue [Termes IGN] orientation du capteur [Termes IGN] stéréoscopie [Termes IGN] système de coordonnées Résumé : (Auteur) As a model for sensor orientation and 3D geopositioning for high-resolution satellite imagery (HRSI), the affine transformation from object to image space has obvious advantages. Chief among these is that it is a straightforward linear model, comprising only eight parameters, which has been shown to yield sub-pixel geopositioning accuracy when applied to Ikonos stereo imagery. This paper aims to provide further insight into the affine model in order to understand why it performs as well as it does. Initially, the model is compared to counterpart, 'rigorous' affine transformation formulations which account for the conversion from a central perspective to affine image. Examination of these rigorous models sheds light on issues such as the effects of terrain and size of area, as well as upon the choice of reference coordinate system and the impact of the adopted scanning mode of the sensor. The results of application of the affine sensor orientation model to four multi-image Ikonos test field configurations are then presented. These illustrate the very high geopositioning accuracy attainable with the affine model, and illustrate that the model is not affected by size of area, but can be influenced to a modest extent by mountainous terrain, the mode of scanning and the choice of object space coordinate system. Above all, the affine model is shown to be both a robust and practical sensor orientation/triangulation model with high metric potential. Copyright ISPRS Numéro de notice : A2004-294 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2003.10.001 En ligne : https://doi.org/10.1016/j.isprsjprs.2003.10.001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26821 [article]

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081-04021	RAB	Revue	Centre de documentation	En réserve L003	Disponible

From point-based to feature-based aerial triangulation / T. Schenk in ISPRS Journal of photogrammetry and remote sensing, vol 58 n° 5-6 (July 2004)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 58 n° 5-6 (July 2004) . - pp 315 - 329 Titre : From point-based to feature-based aerial triangulation Type de document : Article/Communication Auteurs : T. Schenk, Auteur Année de publication : 2004 Article en page(s) : pp 315 - 329 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] aérotriangulation [Termes IGN] analyse comparative [Termes IGN] colinéarité [Termes IGN] compensation par bloc [Termes IGN] extraction automatique [Termes IGN] ligne caractéristique [Termes IGN] modèle stochastique [Termes IGN] objet géographique linéaire [Termes IGN] photogrammétrie numérique [Termes IGN] points homologues Résumé : (Auteur) This paper is concerned with using linear features in aerial triangulation. Without loss of generality, the focus is on straight lines with the attempt to treat tie lines in the same fashion as tie points. The parameters of tie lines appear in the block adjustment like the tie points do. This requires a unique representation of lines in object space. We propose a four-parameter representation that also offers a meaningful stochastic interpretation of the line parameters. The proposed line representation lends itself to a parameterized form, allowing use of the collinearity model for expressing orientation and tie line parameters as a function of points measured on image lines. The paper describes in detail the derivation of the extended collinearity model and discusses the advantages of this new approach compared to the standard coplanarity model that is used in line photogrammetry. The intention of the paper is to make a contribution to feature-based aerial triangulation on the algorithmic level. Copyright ISPRS Numéro de notice : A2004-295 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2004.02.003 En ligne : https://doi.org/10.1016/j.isprsjprs.2004.02.003 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26822 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-04021	RAB	Revue	Centre de documentation	En réserve L003	Disponible