DEM内插方法与精度评定

Interpolation Method and Accuracy Assessment of DEM

数字高程模型是一种简单、离散的数字表达方式。近年来,随着“数字地球”的实施,地理信息系统、遥感技术等领域的相互融合,使得DEM技术的整合得到了进一步的发展。论文研究了DEM软件的内插方法,检验精度及精度评定,并将DEM技术应用于斜坡度、坡向和等高线及剖面图的制作。

Digital elevation model(DEM)is a simple and discrete digital representation method.In recent years,the implementation of“digital earth”,the integration of GIS,remote sensing technology and other fields has improved the integration of DEM technology.This paper discusses the production method of DEM software,the inspection accuracy,and accuracy assessment.And DEM technology is applied to the production of slope degree,slope direction,contour line and profile maps.