| 1:10000DEM生产工艺改进方法研究和应用 |
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| 引用本文： | 祝晓坤,岳京宪,李鸣.1:10000DEM生产工艺改进方法研究和应用[J].北京测绘,2007(3):1-4,18. |
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| 作者姓名： | 祝晓坤 岳京宪 李鸣 |
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| 作者单位： | 北京市测绘设计研究院,北京,100038;北京市测绘设计研究院,北京,100038;北京市测绘设计研究院,北京,100038 |
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| 摘 要： | 归纳了基于ArcGIS平台,利用地形图数据库生产1:10000DEM的工艺流程。并从以下两方面对DEM生产工艺流程进行改进:一、首次提出采用距离权法自动内插生成三维(3D)特征线,有效减少、甚至消除构TIN产生的"平台效应";二、针对生成的DEM数据,文中还提出一种大样本自动采样的精度评价方法,减少人工检查工作量。试验证明改进工艺流程能有效提高作业效率,改善DEM产品精度,使DEM产品更贴合实际地形,可用于DEM数据的快速生产。
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| 关 键 词： | 地形要素 DEM 精度评价 ArcGIs |
| 收稿时间： | 2007-03-28 |
| 修稿时间： | 2007年3月28日 |
Methods Search and Application of the Improved Work Flow of 1:10000 DEM Production |
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| Zhu Xiao-kun,Yue Jing-xian,Li Ming.Methods Search and Application of the Improved Work Flow of 1:10000 DEM Production[J].Beijing Surveying and Mapping,2007(3):1-4,18. |
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| Authors: | Zhu Xiao-kun Yue Jing-xian Li Ming |
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| Institution: | Photogrammetry and Remote Sensing Center;Beijing Instititute of Surveying and Mapping;Beijing;100038 |
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| Abstract: | In this paper, the work flow of producing 1:10000 DEM(Digital Elevation Model) with topographic data based on ArcGIS platform is summarized. Furthermore, the work flow is improved from two aspects: on one hand, a distance add-weight method used to acquiring three dimension feature lines is firstly proposed to reduce or even eliminate the "platform effection" of DEM data. On the other hand, for produced DEM data, a new assessment method of automatic resampling is proposed to reduce artificial checking worklo... |
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| Keywords: | DEM ArcGIs |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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