基于DEM的山顶点高精度提取模型研究

A model of extracting surface peak height precision based on DEM

山顶点是重要的地形特征点之一,针对现有的基于DEM的山顶点提取算法存在的缺陷,文中依据山顶点的地形形态特征,构建基于基准面逐次下降法的新型山顶点提取模型。在基于全国1∶100万DEM上的实验测试表明,该模型具有很好的应用价值。

Peak point is one of the important points of topographic features. For the existing defeets in DEM based peak extraction algorithm, and based on the topography of the peak morphological characteristics, a new top model is built of successive descent datum the 1 ： 1 000 000 DEM based on the national experimental tests show that the model is of very good value.