| 二次曲面移动拟合内插与Voronoi图法内插生成的DEM精度探讨 |
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| 引用本文： | 雷海峰,何政伟,陈敏.二次曲面移动拟合内插与Voronoi图法内插生成的DEM精度探讨[J].四川测绘,2012(1):16-19. |
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| 作者姓名： | 雷海峰 何政伟 陈敏 |
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| 作者单位： | 成都理工大学地球科学学院,四川成都610059 |
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| 摘 要： | DEM（Digital Elevation Model）是地形表面的一个数学或数字模型,对地形表面进行表达的各种处理可称为表面建模,在表面建模中,表面内插是表面重建的关键,文章对两种常用的表面内插进行了介绍并对两种内插方法的精度用常规的取点判定模型进行了判断定。
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| 关 键 词： | DEM内插 移动拟合 Voronoi图 精度评定 |
Approach the Precision of the DEM Which was Created by the Methods of Quadric Surfaces Moving Fitting Interpolation and Voronoi Chart Interpolation |
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| LEI Hai-feng,HE Zheng-wei,CHEN Min.Approach the Precision of the DEM Which was Created by the Methods of Quadric Surfaces Moving Fitting Interpolation and Voronoi Chart Interpolation[J].Surveying and Mapping of Sichuan,2012(1):16-19. |
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| Authors: | LEI Hai-feng HE Zheng-wei CHEN Min |
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| Institution: | (Chengdu University of Technology, Chengdu 610059, China) |
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| Abstract: | DEM （Digital Elevation Model） is a mathematical or digital model of the terrain surface,the different treatment to the expression of the terrain surface may be called surface modeling. In the surface modeling, the surface interpolation is the key of the surface rebuild. In the article, on the one hand two kinds of frequently-used interpolation functions was introduced, on the other hand the author use routine method to judge the precision of the two kinds interpolation methods. |
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| Keywords: | DEM interpolation Move fitting Voronoi chart Precision assess |
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