Algorithm of 3D terrain digital surface model based on standard deviation
基于标准差的地形三维表面模型建立方法

Delaunay triangulation is very successful when it used with 2D dataset. But it has serious problems when used with 3D spatial data. So it is necessary to find a new method to solve this problem.This paper proposed a new algorithm to build 3D terrain digital surface model based on standard deviation. Compared to traditional LOP procedure, this method considered additional elevation.Explained the standard deviation,why used it and the algorithm based on it. Finally, gave the steps of algorithm and validated the algorithm through an example.