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학술대회 Digital Surface Model Generation based on Satellite Images
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유정재, 이만희, 박창준
International Conference on Information and Communication Technology Convergence (ICTC) 2019, pp.664-668
19HS5100, 다고도 이기종 실사영상 기반 3차원 합성전장 구축 및 가시화 기술 개발, 박창준
We propose an algorithm for computing digital surface model from several satellite images of same site. The proposed method is applicable not only to stereo pair images, but also to multi-mono images of the same region independently taken by different satellites at different times. We used multiview stereo approach in satellite imagery using semi-global matching to acquire depth maps. In order to minimize the deterioration effect caused by photographing the same area with different satellites at different times, we use the knowldege of structural characteristics in the shooting space that can be assumed in the satellite image. The proposed method was performed to generate DSM based on World View3 satellite images and it is confirmed that the detailed shape of a building can be identified in the DSM.
KSP 제안 키워드
Depth Map, Deterioration effect, Digital surface model generation, Multi-view stereo, Satellite imagery, World View, semi-global matching, stereo pair, structural characteristics