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：2002
卷号：XXXIV Part 1
出版社：Copernicus Publications
摘要：The direct sensor orientation based on the combination of an inertial measurement system (IMU) and relative kinematic GPS- positioning has reached a high accuracy potential. By this reason it can be used not only for the generation of ortho images, but also for the georeferencing of models for the generation of digital elevation models (DEM). With the data set of the test 'Integrated Sensor Orientation' of the European Organization for Experimental Photogrammetric Research (OEEPE), the generation of DEM's has been investigated. The reached ground accuracy is in the range of ~ 10cm for X and Y, and ~ 10 - 20cm for Z is sufficient for several applications. A mayor problem are y-parallaxes appearing in the set up of the models which has been investigated in detail. This can be reduced by a combined adjustment of the image orientations from direct sensor orientation together with image coordinates of tie points, but without control points. The effect of remaining orientation discrepancies to the model orientation and the resulting model deformation was analyzed
关键词：Photogrammetry; GPS; Navigation; Direct; Sensor; Orientation; DEM
