面向对象-改进冰雪指数法消除冰湖干扰提取冰川边界的优越性分析——以各拉丹冬冰川为例

杨佳, 薛莎莎, 苏永恒, 任庆福

Analysis of superiority of the object-oriented-improved ice and snow index method to eliminate glacial lake interference and extract glacier boundaries： taking Geladandong Glacier as an example

Jia YANG, Shasha XUE, Yongheng SU, Qingfu REN

表2 冰雪指数提取结果的精度

Table 2 Accuracy of extraction results based on ice and snow indexes

指数 阈值 漏分误差 总体精度 RSI RSI>9.172 3.91% 96.09% DSI DSI>2 207 3.14% 96.86% NDSI* NDSI*>0.860 4.71% 95.29%