Valley lines extraction from DEM and its programming realization based on IDL&ArcGIS Engine

摘要：

　　Extraction of valley lines from Digital Elevation Model (DEM) is a hot research spot in geological and hydrological field.Based on grid DEM,a valley lines extraction method was proposed and implemented by IDL&ArcGIS Engine mix programming.First the initial valley line extraction was implemented in IDL based on its morphological characteristics.Second the original valley line data was export into ArcGIS Engine,and combined with hydrological features,a further valley line extraction was made so as to generate the final valley line information.Finally a validation was proposed to export the valley line data into Google Earth to overlay with the image.The experiment result demonstrates the correctness of the algorithm.

关键词： valley line automatic extraction IDL mix programming

作者: Tao Liu

作者单位: Faculty of Geomatics, Lanzhou Jiaotong University Lanzhou 730070, China

会议类型: 国际会议

会议名称: 2012年水资源综合管理地理信息国际会议

会议地点: 兰州

会议语种:英文

页码: 1-4

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）