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http://dx.doi.org/10.22640/lxsiri.2021.51.2.169

Accuracy evaluation of domestic and foreign land cover spectral libraries using hyperspectral image  

Park, Geun Ryeol (Department of Civil Engineering, Jeonbuk National University)
Lee, Geun-Sang (Department of Cadastre & Civil Engineering, Vision College of Jeonju)
Cho, Gi-Sung (Department of Civil Engineering, Jeonbuk National University)
Publication Information
Journal of Cadastre & Land InformatiX / v.51, no.2, 2021 , pp. 169-184 More about this Journal
Abstract
Recently, land cover spectral libraries have been widely used in studies to classify land cover based on hyperspectral images. Overseas, various institutions have built and provided land cover spectral libraries, but in Korea, the building and provision of land cover spectral libraries is insufficient. Against this background, the purpose of this study is to suggest the possibility of using domestic and foreign spectral libraries in the classification studies of domestic land cover. Band matching is required for comparative analysis of the spectral libraries and land cover classification using the spectral libraries, and in this study, an automation logic to automatically perform this is presented. In addition, the directly constructed domestic land cover spectral library and the existing overseas land cover spectral library were comparatively analyzed. As a result, the directly constructed land cover spectral library had the highest correlation coefficient of 0.974. Finally, for the accuracy evaluation, aerial hyperspectral images of the study area were supervised and classified using the domestic and foreign land cover spectral libraries using the SAM technique. As a result of the accuracy evaluation, it is judged that Soils, Artificial Materials, and Coatings among the classification items of the foreign land cover spectral library can be sufficiently applied to classify the cover in Korea.
Keywords
Hyperspectral Image; Spectral Library; Land Cover Classification; Correlation coefficient;
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