Feasibility on Generating Topographic Map Using KOMPSAT

초록

Korea is developing a Korea Multi-Purpose Satellite 1 (KOMPSAT-1) as one of Korea National Space Program, which will be launched in late 1999. The EOC (Electro-Optical Camera) is the primary payload for KOMPSAT-1. The main mission of EOC is to provide the stereo images for the production of topographic maps of Korean territory. This research is focused on methodology and possibility for the production of topographic maps using EOC sensor. Since the imagery from EOC is not yet available, stereo SPOT Level 1A image data, which are quite similar to those of EOC except resolution, were utilized for generation of DEM(Digital Elevation Model), Orthoimage, and topographic sample digital maps. Implemented was Imagestation (Digital Photogrammetric Workstation) in the process of DEM, orthoimage, and sample digital map generation. The sample digital maps generated from SPOT stereo images were compared and analyzed with the existing 1:50,000 scale digital map produced by National Geography Institute in Korea. The feasibility and problem encountered in 1:50,000 scale digital mapping using SPOT stereo images were presented. Based on results, the feasibility and further research areas for KOMPSAT-EOC in the line of 1:25,000 and 1:50,000 digital mapping were discussed