有云Landsat TM/OLI影像结合DEM提取青藏高原湖泊边界的自动算法研究
王鑫蕊,晋锐,林剑,曾祥飞,赵泽斌

Automatic Algorithm for Extracting Lake Boundaries in Qinghai-Tibet Plateau based on Cloudy Landsat TM/OLI Image and DEM
Xinrui Wang,Rui Jin,Jian Lin,Xiangfei Zeng,Zebin Zhao
表2 本算法自动提取的2015年湖泊边界与手工数字化边界的长度、面积差异分析
Table 2 Analysis of the differences of length and area between the automatically extracted lake boundaries by this algorithm and the manually digitized boundaries in 2015
湖泊名称Landsat-8+DEM确定长度/kmZY-3号影像确定长度/km长度差/km长度差百分比/%Landsat-8+DEM确定面积/km2

ZY-3号影像

确定面积/km2

面积差/km2面积差百分比/%
达如错59.7255.184.548.2371.8769.981.892.70
切里错19.1618.980.180.9513.0512.960.090.69
懂错82.4681.451.011.24152.06151.110.950.63
江错29.4531.40-1.95-6.2140.6540.430.220.54
蓬错78.5074.813.694.93176.45176.55-0.10-0.06