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Extracting High Quality Thematic Information by Using High-Resolution Satellite Imagery  

Lee, Hyun-Jik (상지대학교 건설시스템공학과)
Ru, Ji-Ho (상지대학교 일반대학원 토목공학과)
Yu, Young-Geol (상지대학교 건설시스템공학과)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.18, no.1, 2010 , pp. 73-81 More about this Journal
Abstract
In recent years, there have been diverse researches and utilizations of creating geo-spatial information with high resolution satellite images. However thematic maps made with middle or low resolution satellite images have low location accuracy and precision of thematic information. This study set out to propose a method of making a precision thematic map with high resolution satellite images by examining the conversion from the conventional method based on middle or low resolution satellite images to the automatic method based on high resolution satellite images of GSD 1m or lower, extracting thematic information of middle or large scale of 1/5,000 or lower, and analyzing its accuracy. Seven classification classes were categorized according to the object-oriented classification in order to automatically extract thematic information with high resolution satellite images. And the classification results were compared and analyzed with the old middle scale land cover map and 1/1000 digital map.
Keywords
High-Resolution satellite Imagery; Thematic maps; Classification;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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