EVALUATION OF POSSIBILITY OF ORTHO IMAGERY PRODUCTION USING SPOT5 SINGLE IMAGE

摘要

As availability of high-resolution satellite imagery increases, the interests on the image maps using satellite imagery have been focused the production of thematic maps or accuracy improvement of digital maps. This research evaluated accuracy of the ortho images by comparing ortho imagery generated from SPOT5 single image with existing digital map by Korea National Geographic Information Institute. In this research, ortho imagery was produced using single image of SPOT5 satellite imagery. The accuracy analysis with 10 check points of respective layers of roads, streams, and structures was conducted. Although the research showed that ortho imagery acquired by single image had lower accuracy, it was evaluated to be more effective considering the economical effectiveness and applicability. With satellite imagery of higher spatial resolution, it can be effectively applied in production of larger scale ortho imagery maps.