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http://dx.doi.org/10.7780/kjrs.2018.34.6.3.3

Feasibility Study on Producing 1:25,000 Digital Map Using KOMPSAT-5 SAR Stereo Images  

Lee, Yong-Suk (Department of Geoinformatics, University of Seoul)
Jung, Hyung-Sup (Department of Geoinformatics, University of Seoul)
Publication Information
Korean Journal of Remote Sensing / v.34, no.6_3, 2018 , pp. 1329-1350 More about this Journal
Abstract
There have been many applications to observe Earth using synthetic aperture radar (SAR) since it could acquire Earth observation data without reference to weathers or local times. However researches about digital map generation using SAR have hardly been performed due to complex raw data processing. In this study, we suggested feasibility of producing digital map using SAR stereo images. We collected two sets, which include an ascending and a descending orbit acquisitions respectively, of KOMPSAT-5 stereo dataset. In order to suggest the feasibility of digital map generation from SAR stereo images, we performed 1) rational polynomial coefficient transformation from radar geometry, 2) digital resititution using KOMPSAT-5 stereo images, and 3) validation using digital-map-derived reference points and check points. As the results of two models, root mean squared errors of XY and Z direction were less than 1m for each model. We discussed that KOMPSAT-5 stereo image could generated 1:25,000 digital map which meets a standard of the digital map. The proposed results would contribute to generate and update digital maps for inaccessible areas and wherever weather conditions are unstable such as North Korea or Polar region.
Keywords
KOMPSAT-5; radar satellite; SAR; digital map; digital plotting; 1:25,000; digital topographical map; sensor modeling;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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