| 基于Matlab的三次卷积法在数字地形数据内插中的应用 |
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| 引用本文： | 李水兵,李培现.基于Matlab的三次卷积法在数字地形数据内插中的应用[J].测绘信息与工程,2011,36(3):36-38. |
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| 作者姓名： | 李水兵 李培现 |
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| 作者单位： | 中国矿业大学环境与测绘学院,徐州市南湖三环路,221116 |
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| 摘 要： | 利用三次卷积法对数字地形数据进行内插,获得了足够的三维地形数据,解决了由于格网地形数据有限,必须采用内插的方法以获得足够的三维数据问题,实现了三维地形数据内插和三维模拟,取得了较好的效果,为复杂地形的三维地形建模提供了一种新的方法。
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| 关 键 词： | 数据内插 三次卷积法 Matlab 三维建模 |
Application of Cubic Convolution Interpolation to Digital Map Data Based on Matlab |
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| LI Shuibing,LI Peixian.Application of Cubic Convolution Interpolation to Digital Map Data Based on Matlab[J].Journal of Geomatics,2011,36(3):36-38. |
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| Authors: | LI Shuibing LI Peixian |
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| Institution: | LI Shuibing LI Peixian(School of Environmental Science and Spatial Informatics,China University of Mining and Technology,Sanhuan Road,Xuzhou 221116,China) |
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| Abstract: | We appliy cubic convolution interpolation function to interpolation of the digital map data.A third-order approximation forterrain surface with a continuous third derivative can get adequate digital map data to solve the issue that the digital map date is limited and get adequate date by interpolation.Basd on Matlab,we realize interpolation for digital map data and three dimensional modeling.The result shows the method has a good outcome and gives a new method for three dimensional modeling of complicated terrain. |
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| Keywords: | interpolation cubic convolution matlab three dimensional modeling |
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