GF-7 and ZY-3 satellites jointly serve airport clearance monitoring

doi:10.13474/j.cnki.11-2246.2023.0182

Abstract

Abstract: According to the DSM production requirement of airport clearance monitoring, the DSM data is obtained by stereo matching of the GF-7 satellite image based on the high-precision control data in this paper. The matching effect of high-rise and super high-rise buildings is not good, and the manual stereo editing workload is large. Joint block adjustment is performed on the satellite images of GF-7 and ZY-3, and technologies such as multi-horizon epipolar image matching, globally optimized occlusion detection and parallax hole repair are adopted to obtain high-precision DSM data by stereo matching. The high-precision DSM can effectively extract high-rise and super-high-rise buildings, and provide basic spatial data for airport clearance monitoring.

Key words: joint block adjustment, multi-horizon epipolar image matching, globally optimized occlusion detection, parallax hole repair

CLC Number:

P237

LIU Dongzhi, XU Qingling. GF-7 and ZY-3 satellites jointly serve airport clearance monitoring[J]. Bulletin of Surveying and Mapping, 2023, 0(6): 138-141.

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