Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)
- 2008.10a
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- Pages.11-13
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- 2008
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- 1226-9743(pISSN)
CO-REGISTRATION OF KOMPSAT IMAGERY AND DIGITAL MAP
- Han, Dong-Yeob (Chonnam National University) ;
- Lee, Hyo-Seong (Sunchon National University)
- Published : 2008.10.29
Abstract
This study proposes the method to use existing digital maps as one of the technologies to exclude individual differences that occur in the process of manually determining GCP for the geometric correction of KOMPSAT images and applying it to the images and to automate the generation of ortho-images. It is known that, in case high-resolution satellite images are corrected geometrically by using RPC, first order polynomials are generally applied as the correction formula in order to obtain good results. In this study, we matched the corresponding objects between 1:25,000 digital map and a KOMPSAT image to obtain the coefficients of the zero order polynomial and showed the differences in the pixel locations obtained through the matching. We performed proximity corrections using the Boolean operation between the point data of the surface linear objects and the point data of the edge objects of the image. The surface linear objects are road, water, building from topographic map.