摘要： 为从整体把握山脉态势，提出一种利用矢量化技术提取山脉线的方法。将山脉看作是由山脊线中某些符合山脉特征的山脊分段构成，设计山脊线的矢量化和提取规则，提取权值较大的分段组合成主山脉，根据拓扑结构确定支脉，以完成山脉分级。实验结果表明，该方法提取的山脉线走势清晰，结构合理，符合地貌认知。

关键词: 数字高程模型, 宏观地形特征, 矢量化, 特征线拓扑, 特征线分级, 山脉线

Abstract: In order to grasp the shape of mountains, this paper is focus on the macro terrain features, and proposes a method of extracting mountain lines through vectorization technique. It presents the extraction method considering the mountains line consists of some ridge-lines segments, which fit the features of mountains. It is aiming at the vectorization of ridge-lines and the design rule of extraction. Experimental results show that the method is reasonable and accord with landscape cognition.

Key words: Digital Elevation Model(DEM), macro terrain feature, vectorization, feature line topology, feature line classification, mountain line

中图分类号: 

• TP391