摘要
内插数字高程模型(Digital Elevation Model)是矿山地表建模的重要工作之一.针对传统逐点内插法选点的不足,引入了Voronoi K阶邻近的概念,并在此基础上描述了一种基于Voronoi K阶邻近内插的矿山地表建模方法.这种方法选取待定点的K阶邻近点作为内插参考点,并且按照欧几里德距离和Voronoi距离定义内插参考点的权重.实验表明,相比传统的内插方法,该方法改善了在邻近点选取上的不足,具有较高的时间效率,满足DEM内插的精度要求.
DEM（Digital Elevation Model）is an important tool for mine surface modeling.Interpolation is the core problem of DEM.A concept of Voronoi K order adjacency was introduced,and a DEM interpolation method based on this concept was described.This method select Voronoi K order adjacency points for reference points and determined weighting functions with both Euclid distance and Voronoi distance.The experiments shown that this method satisfie the precision requirement.Compared with traditional method,based on Voronoi K order adjacency,it improves on the selection of adjacent reference points and is of the better time efficiency.
出处
《湖南科技大学学报（自然科学版）》
CAS
北大核心
2010年第2期85-88,共4页
Journal of Hunan University of Science And Technology：Natural Science Edition
基金
国家自然科学基金资助项目(40371084)
关键词
数字高程模型
内插
邻近
VORONOI
digital elevation model
interpolation
K order adjacency
Voronoi
