The Accuracy of Regular Grid Digital Elevation Model

摘要：

The error of Digital Elevation Model (DEM) comprises the propagation error of grid data,but also includes the simulation error of terrain expressed by interpolation method.The interpolation Digital Elevation Models in pieces area makes up of bilinear interpolation,bicubic interpolation,splines function interpolation,Coons surface DEM,etc.This paper studies that the accuracy of the Digital Elevation Models base on mathematical surfaces which are added the normal distribution of random errors to,as shown in experiment different Digital Elevation Models have different sensitivity to original data error in different terrain,the accuracy of Digital Elevation Model not only relates to sampling interval and terrain complexity but also relates to original data error and interpolation method.

关键词： Regular Grid Digital Elevation Model error

作者: Yao-ge WANG Guo-zhong CUI Li GUO

作者单位: Institute of Science,Information Engineering University ZhengZhou,China Institute of Surveying and Mapping,Information Engineering University ZhengZhou,China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Computer and Network Technology(ICCNT 2011)(2011第三届IEEE计算机与网络技术国际会议)

会议地点: 太原

会议语种:英文

页码: 148-150

在线出版日期: 2011-02-26（万方平台首次上网日期，不代表论文的发表时间）