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| 逐点内插法建立DEM的研究 | |
| 引用本文： | 兰燕,王明华,刘珊红,戴晓爱.逐点内插法建立DEM的研究[J].测绘科学,2009,34(1). |
| 作者姓名： | 兰燕 王明华 刘珊红 戴晓爱 |
| 作者单位： | 1. 成都理工大学地球科学院,成都,610059;西南交通大学土木工程学院,成都,610031 2. 武汉大学测绘学院,武汉,430079 3. 集美大学理学院,福建厦门,361021 4. 成都理工大学地球科学院,成都,610059 |
| 摘 要： | 本文讨论了移动拟合法和加权平均法两种逐点内插法建立DEM的原理及算法实现,并对其中的关键技术——动态确定阈值R和权函数的确定与实现进行了详细讨论。文章在分析常规权函数的基础上提出了一种新的定权方法。最后通过大量试验数据对两种内插方法的精度以及不同权函数的精度分别进行了评定。 |
| 关 键 词： | 移动拟合 加权平均 精度评定 权函数 |
Study on building DEM based on point-by-point interpolation algorithm |
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| LAN Yan,WANG Ming-hua,LIU Shan-hong,DAI Xiao-ai.Study on building DEM based on point-by-point interpolation algorithm[J].Science of Surveying and Mapping,2009,34(1). | |
| Authors: | LAN Yan WANG Ming-hua LIU Shan-hong DAI Xiao-ai |
| Abstract: | The principle and realization of building DEM based on the algorithm of mobile camber fitting and distance-weighted is discussed in the paper.The key technology to determine the dynamic influential radius and the weight function is also discussed.A new weight function is proposed on the basis of analysis of the common weight function.In the end,the precision of the two interpolation algorithm and the different weight function is estimated individually through the large amount of test data. |
| Keywords: | mobile camber fitting precision evaluation distance-weighted average weight function |
| 本文献已被 万方数据 等数据库收录！ | |
