计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (36): 238-240.DOI: 10.3778/j.issn.1002-8331.2009.36.068

• 工程与应用 • 上一篇    下一篇

薄板样条函数在空间数据插值中的应用

杜国明1,贾良文2   

  1. 1.中山大学 地理科学与规划学院,广州 510275
    2.中山大学 海洋中心,广州 510275
  • 收稿日期:2009-08-11 修回日期:2009-10-09 出版日期:2009-12-21 发布日期:2009-12-21
  • 通讯作者: 杜国明

Thin plate splines applied to interpolation of spatial data

DU Guo-ming1,JIA Liang-wen2   

  1. 1.School of Geography Sciences and Planning,Sun Yat-sen University,Guangzhou 510275,China
    2.Coastal Ocean Research Center,Sun Yat-sen University,Guangzhou 510275,China
  • Received:2009-08-11 Revised:2009-10-09 Online:2009-12-21 Published:2009-12-21
  • Contact: DU Guo-ming

摘要: 薄板样条函数是空间数据插值中一种重要的方法,介绍了该方法的基本原理,并以珠江河道地形数据为例,借助地理信息系统的二次开发功能,将薄板样条函数应用于空间插值,通过与测试样本点以及克里金插值在最大值、标准误等方面的比较分析,证明薄板样条函数是一种有效的空间数据插值方法。

关键词: 薄板样条函数, 空间数据, 插值, 地理信息系统

Abstract: Thin Plate Splines(TPS) is an important method of interpolation of spatial data.First,the basic principle of TPS is introduced.Second,TPS is applied to interpolation of spatial data of Pearl River Riverway based on secondary development of Geographic Information System.Finally,the interpolation results of TPS are compared with true values and Kriging interpolation by the maximum value,standard error and so on.It is proved that TPS is an effective method of interpolation of spatial data.

Key words: Thin Plate Splines(TPS), spatial data, interpolation, Geographic Information System(GIS)

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