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A Study on Precision Rectification Technique of Multi-scale Satellite Images Data for Change Detection  

윤희천 (안산공과대학 토목과)
이성순 (한국지질자원연구원)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.22, no.1, 2004 , pp. 81-90 More about this Journal
Abstract
Because satellite images include geometry distortions according to photographing conditions and sensor property, and their spatial and radiational resolution and spectrum resolution are different, it is so difficult to make a precise results of analysis. For comparing more than two images, the precise geometric corrections should be preceded because it necessary to eliminate systematic errors due to basic sensor information difference and non-systematic errors due to topographical undulations. In this study, we did sensor modeling using satellite sensor information to make a basic map of change detection for artificial topography. We eliminated the systematic errors which can be occurred in photographing conditions using GCP and DEM data. The Kompsat EOC images relief could be reduced by precise rectification method. Classifying images which was used for change detections by city and forest zone, the accuracy of the matching results are increased by 10% and the positioning accuracies also increased. The result of change detection using basic map could be used for basic data fur GIS application and topographical renovation.
Keywords
Change detection; DEM; Kompsat EOC; Landsat TM; Relief displacement; Kompsat EOC; Landsat TM;
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