| DEM内插方法的研究与分析 |
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| 引用本文： | 朱添翼,王昶.DEM内插方法的研究与分析[J].北京测绘,2014(6):16-19. |
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| 作者姓名： | 朱添翼 王昶 |
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| 作者单位： | 辽宁科技大学土木工程学院,辽宁鞍山,114051;辽宁科技大学土木工程学院,辽宁鞍山,114051 |
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| 摘 要： | 在调兵山地区,选择61个已知点作为起算数据,采用移动三角面法和双二次多项式曲面内插法建立该地区的DEM模型。经实验分析发现,移动三角面法建立的DEM内插中误差值要高于双二次多项式曲面内插中误差值,尤其在地势变化比较大的区城内插精度比较高,适合地形起伏变化较大区域的高程内插。双二次多项式曲面法建立的DEM在地势变化比较平缓的地区内插精度要高于移动三角面法,适合地形起伏较小地区的高程内插。
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| 关 键 词： | DEM模型 内插 移动三角面法 双二次多项式曲面法 |
Research and Analysis of DEM Interpolation Methods |
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| ZHU Tian-yi,WANG Chang.Research and Analysis of DEM Interpolation Methods[J].Beijing Surveying and Mapping,2014(6):16-19. |
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| Authors: | ZHU Tian-yi WANG Chang |
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| Institution: | LU Yan ,GUO Yi-xuan , HE Xiao-ying(Beijing Institute of Surveying and Mapping, Beiiing 100038, ChIna; 2. Beijing Key Laboratory of Urban Spatial Information Engineering, Beijing 100038,China) |
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| Abstract: | With the development of economy, people＇s flying stanaarus atlu L~i~ continue to improve. More and more special-shaped buildings are constantly emerging, increasing the difficulty of housing area measurement. This paper will combine the theoretical knowledge of housing area calculation and my practical experi- ence, to analysis various problems of irregular building area calculation and explore the appropriate calibration methods. |
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| Keywords: | irregular buildings area measurement non prism measurement accuracy |
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