ROCSAT-2 spectral reflectance experiments using local three-end-member spectral mixed model in Taiwan

Chih-Li Chang; Chi-Nan Wu; Tzu-Yi Liao; Chiuder Hsiao

doi:10.1117/12.462384

17 March 2003 ROCSAT-2 spectral reflectance experiments using local three-end-member spectral mixed model in Taiwan

Chih-Li Chang, Chi-Nan Wu, Tzu-Yi Liao, Chiuder Hsiao

Proceedings Volume 4879, Remote Sensing for Agriculture, Ecosystems, and Hydrology IV; (2003) https://doi.org/10.1117/12.462384
Event: International Symposium on Remote Sensing, 2002, Crete, Greece

Abstract

Classification of land cover and land use is one of ROCSAT-2 primary applications. Spectral reflectance experiments were conducted for classification of the main land use and land cover in Taiwan. The four Level I categories of USGS classification system were picked out for classification of the major territory in Taiwan. The fourteen subcategories with fourteen different crops were further classified for the agricultural land use. The barren land is classified into five subcategories. The spectral reflectance of each category or subcategory was recorded with a spectro-radiometer, GER3700, with 702 channels. Since the spectral range of GER3700 covers the four color bands, blue, green, red and infrared of the ROCSAT-2 Remote Sensing Imager, the recorded data were derived into simulated reflectance in the color bands of the ROCSAT-2 Remote Sensing Imager. To use a multiple end-member spectral mixed model, the correlation among the category and/or subcategory was calculated. Yam, dry sand and water were selected as the local three end-members for their low correlation of spectral reflectance. The spectral reflectance of other categories is coded as the components of the local end-members.

Citation Download Citation

Chih-Li Chang, Chi-Nan Wu, Tzu-Yi Liao, and Chiuder Hsiao "ROCSAT-2 spectral reflectance experiments using local three-end-member spectral mixed model in Taiwan", Proc. SPIE 4879, Remote Sensing for Agriculture, Ecosystems, and Hydrology IV, (17 March 2003); https://doi.org/10.1117/12.462384

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