路口内虚拟车道自动制图方法  

Automatic mapping of virtual lanes in intersections

作　　者：刘大伟 LIU Dawei(Beijing Huawei Digital Technologies Co.,Ltd.,Beijing 100080,China)

机构地区：[1]北京华为数字技术有限公司,北京100080

出　　处：《测绘通报》2023年第6期15-19,共5页Bulletin of Surveying and Mapping

摘　　要：高精度地图在位置查找、自动导航、自动驾驶等场景中起到至关重要的作用。本文对现有高精度地图的制图方法进行了分类与总结,并指出现有制图方法存在的问题:制图效率低且没有规避障碍物,导致即使可以自动化标注路口内的虚拟车道线,但实际却不可用。本文针对现有制图方法存在的问题,设计了一种路口内可以规避障碍物(如岗亭、交通圈等)的虚拟车道线自动化制图方法。通过对北京市和上海市部分路段内的多个路口内的虚拟车道线进行自动化提取,并记录首次自动化制图提取的正确率。试验结果表明,该方法可适用于十字、X形、Y形、T形等多种路口,并且自动化标注的虚拟车道线可以规避路口内的障碍物,满足绝大多数路口内的车道线自动化提取需求,因此该方法可以满足路口内虚拟车道线的自动化制图的预期目标。通过该自动化制图方法,可以快速自动标注路口内的车道线,大大提高制图人员的制图效率。High precision maps play a critical role in scenarios such as location finding,auto-navigation,and even autonomous driving.This paper classifies and summarizes the existing high precision mapping methods,and points out the problems of the existing mapping methods:the low efficiency of mapping,and no obstacle avoidance,which leads to the automatic marking of virtual lane lines in intersections,but it is not available in practice.Aiming at the problems of existing mapping methods,this paper designs a virtual lane automatic mapping method which can avoid obstacles(such as guard booth,traffic circle,etc.)in intersections.The virtual lane lines in several intersections in Beijing and Shanghai are extracted automatically,and the accuracy of the first automatic drawing extraction is recorded.According to the experimental results,it is proved that the method can be applied to various intersections such as cross,X-shaped,Y-shaped,T-shaped,and so on,and the virtual lane lines automatically marked can avoid obstacles in intersections,which can meet the requirements of automatic lane lines extraction in most intersections.Therefore,this method can meet the expected goal of automatic mapping of virtual lane lines in intersections.Through the automatic mapping method,the lane lines in intersections can be marked automatically and quickly,and the efficiency of the cartographers is greatly improved.

关 键 词：高精地图 自动化制图 制图效率 虚拟车道 规避障碍物 

分 类 号：P28[天文地球—地图制图学与地理信息工程]