一种稳定阈值的湖泊水体信息提取方法

朱小强, 丁建丽, 夏楠, 郭家新, 张淑霞, 杨童童, 王敬哲, 李晓航

Temperature vegetation water index: A novel stabilized threshold method for lake surface water mapping

Xiaoqiang ZHU, Jianli DING, Nan XIA, Jiaxin GUO, Shuxia ZHANG, Tongtong YANG, Jingzhe WANG, Xiaohang LI

表3 不同类型湖泊的精度评价

Table 3 Summary of accuracy assessments at the three lakes

湖泊名称 方法 阈值 总体精度% Kappa系数 生产者精度/% 用户精度% 错分误差% 漏分误差% 鄱阳湖 NDVI -0.20 97.52 0.90 99.17 85.50 14.50 0.83 -0.30 97.96 0.91 92.60 92.88 7.12 7.40 -0.40 95.80 0.81 72.17 97.21 2.79 27.83 NDWI 0.10 85.70 0.58 100.00 49.55 50.45 0.00 0.20 92.99 0.76 100.00 66.71 33.29 0.00 0.30 96.65 0.87 99.92 80.80 19.20 0.08 MNDWI 0.90 97.20 0.89 100.00 83.38 16.62 0.00 0.93 98.34 0.93 100.00 89.46 10.54 0.00 0.95 99.25 0.97 98.74 96.04 3.96 1.26 TVWI -0.50 93.53 0.76 93.04 70.39 29.61 6.96 0.00 98.06 0.92 93.04 93.16 6.84 6.96 0.50 98.06 0.92 93.04 93.20 6.80 6.96 博斯腾湖 NDVI -0.20 99.68 0.99 99.83 98.99 1.01 0.17 -0.25 99.75 0.99 99.34 99.69 0.31 0.66 -0.30 99.35 0.98 97.61 99.93 0.07 2.39 NDWI 0.40 99.46 0.98 99.19 99.90 0.10 0.81 0.43 99.03 0.98 98.45 99.92 0.06 1.30 0.45 98.63 0.97 97.69 99.97 0.03 2.31 MNDWI 0.80 97.96 0.95 100.00 96.63 3.37 0.00 0.83 98.90 0.97 99.84 98.32 1.68 0.16 0.85 98.89 0.97 98.93 99.17 0.83 1.07 TVWI 0.00 99.75 0.99 99.27 99.78 0.22 0.73 0.30 99.74 0.99 99.27 99.76 0.27 0.73 0.45 99.66 0.99 99.27 99.44 0.56 0.73 阿拉湖 NDVI -0.28 99.81 0.99 100.00 99.03 0.97 0.00 -0.32 99.85 0.99 100.00 99.24 0.76 0.00 -0.35 99.84 0.99 99.81 99.39 0.61 0.19 NDWI 0.55 99.64 0.99 99.99 99.38 0.62 0.01 0.58 99.72 0.99 99.97 99.53 0.47 0.03 0.60 99.75 0.99 99.92 99.63 0.37 0.08 MNDWI 0.85 98.45 0.96 100.00 97.30 2.70 0.00 0.87 98.73 0.97 100.00 97.78 2.22 0.00 0.90 99.10 0.98 99.98 98.43 1.57 0.02 TVWI -0.10 99.71 0.99 100.00 98.55 1.45 0.00 0.00 99.72 0.99 100.00 98.56 1.44 0.00 0.1 99.72 0.99 100 98.56 1.44 0