基于idl和arcgis Engine的DEM谷线提取及其编程实现

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI:10.1109/GIWRM.2012.6349658

Tao Liu

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引用次数: 0

摘要

从数字高程模型(DEM)中提取谷线是地质水文领域的研究热点。在网格DEM的基础上，提出了一种谷线提取方法，并通过idl和arcgis Engine混合编程实现。首先根据山谷线的形态特征，在IDL中进行初始山谷线提取。其次，将原始谷线数据导出到ArcGIS Engine中，结合水文特征，进一步进行谷线提取，生成最终的谷线信息。最后提出了一种将山谷线数据导出到Google Earth与图像叠加的验证方法。实验结果证明了该算法的正确性。

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

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.

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2012 International Symposium on Geomatics for Integrated Water Resource Management

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