利用散点图矩阵与回归分析建立地形描述精度模型  

An Accuracy Model of DEM Terrain Representation Based on Scatterplot Matrices and Regression Analysis

作　　者：齐晓飞[1] 王光霞[1] 马俊[1,2] 王富强 

机构地区：[1]信息工程大学地理空间信息学院 [2]61363部队 [3]78138部队

出　　处：《武汉大学学报（信息科学版）》2013年第11期1344-1348,共5页Geomatics and Information Science of Wuhan University

基　　金：国家863计划资助项目(2013AA12A202)

摘　　要：提出了一种基于散点图矩阵建立多元回归模型的方法,并依此构建了DEM地形描述误差与分辨率、相对高差、凹凸系数的关系公式。实验结果表明,所得公式具有较好的效果。Visualization is an effective method for analyzing correlation information between multivariate data. We built a multivariate data model statistically through a multivariate re- gression model based on scatter plot matrices. Next, we developed a formulae including ter- rain representation error, resolution, relative height, and a concave-convex coefficient and validated it through experimentation The experiments with this proposed formulae show that it is highly effective.

关 键 词：DEM 误差 精度模型 地形因子 回归分析 散点图矩阵 

分 类 号：P208[天文地球—地图制图学与地理信息工程]