| 多时相DEM匹配探测泥石流地表变形的新方法 |
| |
| 引用本文： | 张同刚,岑敏仪,秦军,吴兴华.多时相DEM匹配探测泥石流地表变形的新方法[J].水土保持通报,2006,26(3):96-98,108. |
| |
| 作者姓名： | 张同刚 岑敏仪 秦军 吴兴华 |
| |
| 作者单位： | 西南交通大学,土木工程学院,四川,成都,610031 |
| |
| 基金项目： | 中国科学院资助项目;西南交通大学校科研和教改项目 |
| |
| 摘 要： | 通过多时相DEM探测泥石流地区地表形变，必须建立DEM的统一坐标系，才能计算地表形变量。引入无控制三维表面匹配技术，提出分块区域匹配方法配准两期DEM。实例试验表明：分块区域匹配方法比现有的M—LZD算法更能适合泥石流灾害地区的DEM匹配，探测出的地表变化精度更高。
|
| 关 键 词： | 多时郉EM 三维匹配 差异探测 泥石流 |
| 文章编号： | 1000-288X（2006）03-0096-04 |
| 收稿时间： | 2005-04-20 |
| 修稿时间： | 2005-04-20 |
A New Method of Matching Multi-temporal DEM to Detect Terrain Deformation Caused by Debris Flow |
| |
| ZHANG Tonggang,CEN Minyi,QIN Jun and WU Xinghua.A New Method of Matching Multi-temporal DEM to Detect Terrain Deformation Caused by Debris Flow[J].Bulletin of Soil and Water Conservation,2006,26(3):96-98,108. |
| |
| Authors: | ZHANG Tonggang CEN Minyi QIN Jun and WU Xinghua |
| |
| Institution: | School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan Province, China |
| |
| Abstract: | The volume of terrain deformation caused by debris flow can be calculated by the multi-temporal DEM derived from aerial-photography only when they are in common coordinate.This paper introduces the technique of 3D surface matching without using control points.A new algorithm,Multiply Surface Patches Matching(MSPM),is proposed to match the two temporal DEMs.The experimental results on real data sets show that MSPM is more appropriate for DEM matching in debris-flow area and has higher accuracy than that of M-LZD algorithm. |
| |
| Keywords: | multi-temporal DEM 3D matching deformation detection debris flow |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《水土保持通报》浏览原始摘要信息 |
| 点击此处可从《水土保持通报》下载免费的PDF全文 |
