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Separate adjustment in close-range photogrammetry / X. Wang in ISPRS Journal of photogrammetry and remote sensing, vol 55 n° 5-6 (March - June 2001)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 55 n° 5-6 (March - June 2001) . - pp 289 - 298 Titre : Separate adjustment in close-range photogrammetry Type de document : Article/Communication Auteurs : X. Wang, Auteur ; T.A. Clarke, Auteur Année de publication : 2001 Article en page(s) : pp 289 - 298 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] compensation par faisceaux [Termes IGN] compensation par moindres carrés [Termes IGN] coordonnées [Termes IGN] élément d'orientation externe [Termes IGN] photogrammétrie métrologique [Termes IGN] temps réel Résumé : (Auteur) Industrial manufacturing processes will increasingly require high-speed 3D measurement. If a photogrammetric measurement system is used, cameras will typically be pre-calibrated for interior orientation parameters. The conventional bundle adjustment may be computationally too expensive and other algorithms such as DLT or direct intersection can be used. However, these methods do not provide optimum solutions. In this paper, the separate adjustment method is introduced. This method is based on the separate least squares estimation (LSE) of both the camera exterior orientation parameters and the 3D co-ordinates of the object points. The same results as the bundle adjustment are produced but with a significantly lower computational load. This method is analogous to iterative solution algorithms such as Jacobi or Gauss-Seidel; however, the implementation is different. It is also similar to the successive application of resection and intersection under certain circumstances. The separate adjustment algorithm is described and compared with the bundle adjustment in terms of results, speed and memory requirements. Copyright ISPRS Numéro de notice : A2001-086 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/S0924-2716(01)00021-1 En ligne : https://doi.org/10.1016/S0924-2716(01)00021-1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21786 [article]

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