基于Edline线特征的既有道路中公交专用车道划分方法

Division Method of Bus Lanes in Existing Roads Based on Edline Line Characteristics

由于现阶段已有车道规划方法未能考虑特征分布不均匀问题,影响点特征的提取,导致车道半径提取精度以及公交交通效率较低。为了有效解决上述问题,提出一种基于Edline线特征的既有道路中公交专用车道划分方法。针对既有道路图像进行平滑处理,通过边缘检测算法进行边缘绘制,形成像素链,通过最小二乘线拟合方法提取基于Edline线特征的车道动态半径。利用道路区域的连通性以及区域方法获取路面区域,从而有效实现既有道路中公交专用车道划分。仿真实验结果表明,所提方法能够有效提升车道半径提取精度以及公交交通效率。

At present,the existing Lane planning methods fail to consider the problem of uneven distribution of features,which af-fects the extraction of point features,resulting in the low accuracy of lane radius extraction and the efficiency of public transportation.In order to effectively solve the above problems,this paper proposes a new method of bus lane division based on the characteristics of edline line.The existing road image is smoothed,and the edge is drawn by edge detection algorithm to form pixel chain.The dynamic radius of lane based on the feature of edline is extracted by least square fitting method.Using the connectivity of the road area and the region method to obtain the road area,the bus lane division in the existing road can be realized effectively.Simulation results show that the proposed method can effectively improve the ac-curacy of lane radius extraction and the efficiency of public transport.