| 利用晕渲图进行数字高程模型位置精度检查方法的探讨 |
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| 引用本文： | 李若.利用晕渲图进行数字高程模型位置精度检查方法的探讨[J].四川测绘,2010,33(1):11-12. |
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| 作者姓名： | 李若 |
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| 作者单位： | 国家测绘局第一航测遥感院,陕西西安,710054 |
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| 摘 要： | 本文介绍了DEM位置精度检测的方法，针对DEM内插生成等高线与采集等高线进行套合检查的情况，论述了晕渲图与内插等高线的基本一致，说明了晕渲图的制作与等高线套合检查的关键技术指标，详细分析了套合检查过程中遇到的具体情况，对于DEM精度控制有很好地指导作用。
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| 关 键 词： | 数宁高程模型 精度 晕渲图 |
Discussion on the Method of Checking the Position Precision of DEM Using Symbology Map |
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| LI Ruo.Discussion on the Method of Checking the Position Precision of DEM Using Symbology Map[J].Surveying and Mapping of Sichuan,2010,33(1):11-12. |
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| Authors: | LI Ruo |
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| Institution: | LI Ruo (The First Institute of Photogrammetry and Remote Sensing, SBSM, Xi＇an 710054, China) |
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| Abstract: | This thesis introduces the methods of checking the position precision of DEM.Based on the method of checking the differences between contour lines generated from DEM and those gathered by human,it discusses the processes of producing symbology map of DEM which illustrates the accordance of the symbology map and the generated contour lines,the key technique of DEM and the contour lines,and it makes analysis on the particular situation of the checking the difference of the symbology map and the contour lines ... |
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| Keywords: | DEM Precision Symbology or hillshade map |
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