基于B样条小波的等高线数据简化

The contour data simplifying based on B-spline wavelet

基于B样条小波的变换特征,本文研究了地貌形态的自动综合过程中等高线的数据简化问题,提出了基于B样条小波的等高线的数据简化方法,并进行了实验。理论和实验结果表明,利用所述方法对等高线进行数据简化,方法简捷,精确度高,而且能够保留原等高线的形状结构特征。因此,基于B样条小波的数据简化对地貌形态自动综合是可行的。

Based on transformation feature of B spline wavelet, this paper studies the contour data simplifying on automated generalization of relief state. The method of contour data simplifying based on B spline wavelet is provided, and the experiments are given. The theory and experiment results show that the simplifying method is easy and accurate, and shape construction feature of original contour can be retained. Hence, the simplifying method is reliable.