On the Performance of Digital Airborne Pushbroom Cameras for Photogrammetric Data Processing – a Case Study
نویسندگان
چکیده
Within the paper the results of several studies will be presented, which have been carried out at ifp in order to evaluate the performance of digital airborne pushbroom cameras for photogrammetric data acquisition. In close cooperation with the respective system developers the DPA (Digital Photogrammetric Assembly) of DASA, the HRSC (High Resolution Stereo Camera) and the WAAC (Wide Angle Aircraft Camera), both of DLR have been tested. The aim of the paper is twofold. First the accuracy potential of the investigated systems is demonstrated. For that purpose the results of a photogrammetric point determination using imagery of the different systems collected over a well defined test field are presented. In the second part the photogrammetric processing chain covering the reconstruction of exterior orientation and point determination, but also tasks like DTM and ortho image generation will be compared for pushbroom and for full frame imagery. The discussion of theses differences will help to demonstrate the impact of applying pushbroom imagery during the standard photogrammetric evaluation process.
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