一种基于曲率分析的电子地图数据压缩方法

摘要

在对现有的道路特征点提取方法进行分析的基础上,考虑到车载组合导航系统的特点,提出了一种基于曲率分析的道路特征点提取方法.该算法依据道路的曲率变化,按照自适应步长对道路数据进行压缩.仿真实验结果表明,算法能够有效地提取道路特征点,提高了电子地图道路数据压缩效率.%At present,in the car's navigation system the high precision electronic map has become a kind of important auxiliary navigation way,but electronic map road feature point extraction is a problem to be solved.In this paper,based on the analysis of the existing road feature point extraction method,considering their own car integrated navigation system characteristics,a new method of road feature point extraction application in electronic map based on the curvature analysis is proposed.The simulation experimental results show that this algorithm can effectively extract road feature point and improve the electronic map road data compression efficiency.