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During the implementation of the DGPF-project on Digital Photogrammetric Camera Evaluation a team "Digital Elevation Models" was established. The main goal was to use the test's framework for documentation and evaluation of the current state-of-the-art on photogrammetric 3D data capture from automatic image matching. During these investigations the accuracy and reliability of DSM rasters and 3D point clouds as derived from imagery of digital photogrammetric camera systems were evaluated. For this purpose they were compared to reference measurements from ground truth and airborne LiDAR. In addition to the evaluation of standard products, the usability of elevation data from image matching was investigated while aiming at specific applications in the context of urban modeling and forestry.
Haala et al. (Sat,) studied this question.