A Method for Generating Contour Tree Based on Voronoi Interior Adjacency

被引:3
|
作者
Qiao Chaofei [1 ]
Zhao Renliang [1 ]
Chen Jun [1 ]
Chen Yunhao [1 ]
机构
[1] Beijing Normal Univ, Coll Resources Sci & Technol, 19 Xinjiekou Wai St, Beijing 100875, Peoples R China
关键词
spatial relations of contour lines; contour tree; Voronoi interior adjacency set;
D O I
10.1007/BF02838664
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
A contour tree is a good graphical tool for representing the spatial relations of contour lines and has many applications in map generalization, map annotation, terrain analysis, etc. A new method for generating contour trees by introducing a Voronoi-based interior adjacency concept is proposed in this paper. The immediate interior adjacency set is employed to identify all of the children contours of each contour without contour elevations. It has advantages over existing methods such as the geometric method and the region growing based method.
引用
收藏
页码:287 / +
页数:5
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