대한원격탐사학회:학술대회논문집 (Proceedings of the KSRS Conference)
- 대한원격탐사학회 1998년도 Proceedings of International Symposium on Remote Sensing
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- Pages.342-348
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- 1998
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- 1226-9743(pISSN)
A method on Digital Elevation Model Extraction Using Satellite Images
- Ye, Soo-Chul (Sogang Univ. Electronic Eng. Dept.) ;
- Jeon, Min-Byung (Sogang Univ. Electronic Eng. Dept.) ;
- Lee, Kwae-Hi (Sogang Univ. Electronic Eng. Dept.)
- 발행 : 1998.09.01
초록
The purpose of this paper is to extract fast DEM (Digital Elevation Model) using satellite images. DEM extraction consists of three parts. First part is the modeling of satellite position and attitude, second part is the matching of two images to find corresponding poults of them and third part is to calculate the elevation of each point by using the result of the first and second part. The position and attitude modeling of satellite is processed by using GCPs. A area based matching method is used to find corresponding points between the stereo satellite images. In the DEM generation system, this procedure holds most of a processing time, therefore a new fast matching algorithm is proposed to reduce the time for matching. The elevation of each point is calculated using the exterior orientation obtained from modeling and disparity from matching. In this paper, the SPOT satellite images, level IA 6000
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