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http://dx.doi.org/10.7848/ksgpc.2014.32.2.133

Fully Automated Generation of Cloud-free Imagery Using Landsat-8  

Kim, Byeong Hee (Department of Civil and Environmental Engineering, Seoul National University)
Kim, Yong (Department of Civil and Environmental Engineering, Seoul National University)
Han, You Kyung (Department of Civil and Environmental Engineering, Seoul National University)
Choi, Won Seok (Department of Civil and Environmental Engineering, Seoul National University)
Kim, Yong (Department of Civil and Environmental Engineering, Seoul National University)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.32, no.2, 2014 , pp. 133-142 More about this Journal
Abstract
Landsat is one of the popular satellites for observing land surface that is used in various areas including monitoring, detecting and classifying changes in land surface. However, shades, which cloud itself and its shadow, interrupted often clear observation and analysis of ground surface. For this reason, the process of removing shades and restoring original ground surfaces are critical for geospatial users. This study is planned to recommend a methodology for more accurate and clear images of Landsat-8 sensor, which provided two additional bands of costal/aerosol and cirrus. In fact, those bands are known as functioned effectively in detecting and restoring shades. Otsu's thresholding technique to detect clouds, we replaced those detective shades by using experimental and reference images. In accurate assessment, the overall accuracy and kappa coefficients were about 85% and 0.7128, respectively. This indicates that the proposed technique is effective for recovering the original land surface.
Keywords
Cloud-free image; Landsat-8; Otsu thresholding; Land-use and land-cover map;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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