复杂环境下GF-2影像水体指数的构建及验证

王春霞, 张俊, 李屹旭, Phoumilay

The construction and verification of a water index in the complex environment based on GF-2 images

WANG Chunxia, ZHANG Jun, LI Yixu, PHOUMILAY

表4 研究区2水体提取精度评价结果

Tab.4 Results of accuracy assessment in site 2(%)

评价指标 NDVI CWI SVM RF NDWI SWI ESWI MSWI 总体精度 99.33 99.97 99.94 99.67 99.33 93.80 98.49 99.43 Kappa系数 45.31 94.86 90.70 63.14 45.31 0.08 0.26 49.18