曲面拟合方法从DEM中提取线性信息  

Surfacing fitting method to extract linear information from DEM

作　　者：雷万杉[1] 刘光胜[1] 徐兵[1] 

机构地区：[1]吉林大学综合信息矿产预测研究所,吉林长春130026

出　　处：《长春工业大学学报》2006年第3期219-221,共3页Journal of Changchun University of Technology

基　　金：中国地质调查局资助项目(200010200166)

摘　　要：依据Haralick提出的使用最小二乘法拟合曲面提取线性信息的原理,研究了具体实现方法,并依此编制了提取线性信息的程序。应用该程序从实验数据中提取了山脊线与山谷线,并对应其联贯性不好的缺点提出了相应的改进方案。Basing on the linear information extraction principle with the least square surfacing fitting offered by Haralick, we put forward a practical method to extract the linear information, and work out the corresponding program. With the program, the terrain feature lines such as ridge valley are extracted from the experimental data. Concerning its consecutive features, we also offer an improved scheme.

关 键 词：线性信息 最小二乘法 曲面拟合 DEM 

分 类 号：P208[天文地球—地图制图学与地理信息工程]