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:
孔月萍, 罗寅, 张跃鹏. 基于矢量化的山脉线提取方法[J]. 计算机工程, 2013, 39(3): 254-257.
KONG Ru-Ping, LUO Yin, ZHANG Ti-Feng. Mountain Line Extraction Method Based on Vectorization[J]. Computer Engineering, 2013, 39(3): 254-257.