摘要
文章首先简述了已有的等高线特征点算法,分析了他们的不足,提出了基于通视和D-P算法相结合的地形特征点提取算法,这种算法较好的弥补了已有算法的不足,提高了效率。
First, the essay describe currently methods about feature points of contour line, then analyze their defects, put forward the methods to pick up feature points based on intervisibility and D-P algorithm, the method improves the current methods and work efficiency well.
出处
《测绘科学》
CSCD
北大核心
2010年第1期83-84,共2页
Science of Surveying and Mapping
关键词
等高线
特征点
提取
通视
feature points
contour line
extraction
intervisibility
