最优分区与最优指数联合的水体信息提取

饶萍, 王建力

Water Extraction Based on the Optimal Subregion and the Optimal Indexes Combined

RAO Ping,WANG Jianli

表1 基于单一指数阈值分区的分层提取法精度评价

Tab. 1 Summary of accuracy assessment at the two test sites

方法 测试点 生产者精度 用户精度 误分率 漏分率 总误差 Kappa系数 DTMNDWI 1 91.57 80.31 19.69 8.43 28.12 0.8512 2 90.70 86.12 13.88 9.30 23.18 0.8818 3 84.11 82.30 17.70 15.89 33.59 0.8288 DTAWI 1 91.03 89.36 10.64 8.97 19.61 0.8990 2 81.73 91.28 8.72 18.27 26.99 0.8606 3 80.93 85.53 14.47 19.07 33.54 0.8286 DTNDTBI 1 85.25 93.09 6.91 14.75 21.66 0.8869 2 74.92 96.57 3.43 25.08 28.51 0.8419 3 86.06 85.85 14.15 13.94 28.09 0.8570 DTUI 1 92.30 87.79 12.21 7.70 19.91 0.8968 2 90.70 85.58 14.42 9.30 23.72 0.8789 3 88.26 85.95 14.05 11.74 25.79 0.8685