대한원격탐사학회:학술대회논문집 (Proceedings of the KSRS Conference)
- 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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- Pages.14-17
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- 2007
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- 1226-9743(pISSN)
REGISTRATION OF IKONOS-2 GEO-LEVEL SATELLITE IMAGERY USING ALS DATA;BY USING LINEAR FEATURES AS REGISTRATION PRIMITIVES
- Lee, Jae-Bin (Civil, Urban, and Geosystem Engineering, Seoul National University) ;
- Song, Woo-Seok (Civil, Urban, and Geosystem Engineering, Seoul National University) ;
- Lee, Chang-No (Department of Civil Engineering, Seoul National University of Technology) ;
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Yu, Ki-Yun
(Civil, Urban, and Geosystem Engineering, Seoul National University) ;
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Kim, Yong-Il
(Civil, Urban, and Geosystem Engineering, Seoul National University)
- 발행 : 2007.10.31
초록
To make use of surveying data obtained from different sensors and different techniques in a common reference frame, it is a pre-requite step to register them in a common coordinate system. For this purpose, we have developed a methodology to register IKONOS-2 Satellite Imagery using ALS data. To achieve this, conjugate features from these data should be extracted in advance. In the study, linear features are chosen as conjugate features because they can be accurately extracted from man-made structures in urban area, and more easily than point features from ALS data. Then, observation equations are established from similarity measurements of the extracted features. During the process, considering the characteristics of systematic errors in IKONOS-2 satellite imagery, the transformation function were selected and used. In addition, we also analyzed how the number of linear features and their spatial distribution used as control features affect the accuracy of registration. Finally, the results were evaluated statistically and the results clearly demonstrated that the proposed algorithms are appropriate to register these data.