Taking Yixing City in Jiangsu Province as an example, a map of reflectivity is acquired after serials of pre-processing steps such as the calibration of illumination aberrance, rectification of geometry and calibration of reflectivity have been done. The effective bands are determined by analyzing the parameters of correlation of bands, entropy and separability of 128 bands. Based on the analyzing tools of hyper-spectrum images, some endmembers are acquired, and a comparison study of classification of land use/land cover has been done. The study shows that the overall accuracy of maximum likelihood is about 84.89%, and Kappa Coefficient =0.74, while overall accuracy of binary encoding, neural net and spectral angle mapping is 87.12%,88.75%,90.41% respectively. It also shows that the processing step is correct in the study, and spectral angle mapping is the most effective for imaging spectrometer data classification of land use and land cover.
ZHANG Ding-Xiang, LIU Shun-Xi, YOU Shu-Cheng, ZHOU Liang-Fang
. Comparison Study of Land Use/Land Cover Classification Based on the Airborne Imaging Spectrometer Data in Yixing[J]. SCIENTIA GEOGRAPHICA SINICA, 2004
, 24(2)
: 193
-198
.
DOI: 10.13249/j.cnki.sgs.2004.02.193
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