期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2000
卷号：XXXIII Part B4 (/1-3)
页码：1199-1202
出版社：Copernicus Publications
摘要：The paper deals with the photogrammetric point determination using digital images of the asteroid 243 Ida, which were acquired during the second asteroid .yby of the Galileo spacecraft in August 1993. The photogrammetric point deter- mination was carried out with three different methods: Forward intersections assuming error-free orientation parameters, bundle adjustment without orbital constraints, and bundle adjustment including orbital constraints. The forward intersec- tions lead to poor results, since, in fact, the orientation parameters of the images are not error-free. Thus the functional model has significant systematic errors. Much better results could be achieved by the conventional bundle adjustment, where the exterior orientation parameters were treated as unknowns in the collinearity equations and, in addition, intro- duced as direct observations. The best results were obtained from the bundle adjustment with orbital constraints. This approach guarantees that all exposure stations are lying on a physically consistent trajectory. With the help of the image and orbit information from the Ida .yby the efficiency of the bundle adjustment incorporating orbital constraints was clearly demonstrated
关键词：Point Determination; Bundle Block Adjustment; Asteroids; Orbital Constraints
