基于规则格网DEM的地形特征提取算法

被引：93

作者：

朱庆

赵杰

钟正

眭海刚

机构：

[1] 武汉大学测绘遥感信息工程国家重点实验室

来源：

测绘学报 | 2004年 / 01期

关键词：

格网DEM; 地形分析; 地形特征; 水文特征;

D O I：

暂无

中图分类号：

P216 [高程测量];

学科分类号：

摘要：

提出并实现了一种基于规则格网DEM的地形特征线提取算法,该算法在现有地表水流模拟方法的基础上将矢量操作与栅格操作结合起来对规则格网DEM中的洼地进行填平处理,采用邻域格网分组扫描方法确定平地水流方向,与以往算法相比在提取效率和结果准确性等方面都有了明显的改进,从而也使其更加适合于对大规模的DEM数据进行处理,采用各种尺度的DEM进行试验的结果验证了以上结论。

引用

页码：77 / 82

页数：6

共 17 条

[1] MathmaticalMorphologyandImageAnalysis. CHENXiao yong. . 1991
[2] Automated Recognition of Valley Lines and Drainage Networks from Grid Digital Elevation Models: a Review and a New Method-Comment. MARTZ L W,GARBRECHT J. Journal of Hydronautics . 1995
[3] DigitalElevationModel. LIZhi ling,ZHUQing. . 2000
[4] Calculating Catchment Area with Divergent Flow Based on a Regular Grid. FREEMAN T G. Computers and Geosciences . 1991
[5] The Extraction of Drainage Networks from Digital Elevation Data. O’CALLAGHAN J F,MARK D M. Computer Vision Graphics and Image Processing . 1984
[6] Extraction Topographic Structure from Digital Elevation Data for Geographic Information System Analysis. JENSON S K,DOMINGUE J O. Photogrammetirc Engineering and Remote Sensing . 1988
[7] Automated Recognition of Valley Lines and Drainage Networks from Grid Digital Elevation Models: a Review and a New Method. TRIBE A. Journal of Hydronautics . 1992
[8] Automated Basin Delineation from Digital Elevation Data. MARKS D,DOZIER J,FREW J. Geographic Processing . 1984
[9] Catch: A FORTRAN Program for Measuring Catchment Area from Digital Elevation Models. MARTZ L W,de JONG. Computers and Geosciences . 1988
[10] Terrain Reconstruction from Contours by Skeleton Construction. THIBAULT D,GOLD C M. Proceedings of ISPRS Workshop on Dynamic and Multi-Dimensional GIS[C] . 1999

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