基于3D点云语义地图表征的智能车定位

朱云涛; 李飞; 胡钊政; 吴华伟

基于3D点云语义地图表征的智能车定位

朱云涛^1,2,
李飞¹,
胡钊政^1,2, ,,
吴华伟³

1. 武汉理工大学智能交通系统研究中心武汉 430063;
2. 武汉理工大学重庆研究院重庆 401120;
3. 湖北文理学院汽车与交通工程学院襄阳 441053

基金项目:

国家重点研发计划项目（2018YFB1600801）、武汉市科技局项目（2020010601012165，2020010602011973，2020010602012003）、重庆市自然科学基金项目（cstc2020jcyj-msxmX0978）资助

详细信息

作者简介:
朱云涛(1997-),硕士研究生.研究方向:计算机视觉、激光SLAM.E-mail:zyt941292303@whut.edu.cn

通讯作者:
胡钊政(1979-),博士,教授.研究方向:计算机视觉、智能车路协同.E-mail:zzhu@whut.edu.cn

中图分类号: U495
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- 被引次数: 0
出版历程
- 收稿日期: 2021-10-14
- 网络出版日期: 2021-12-14

Intelligent Vehicles Localization Based on Semantic Map Representation from 3D Point Clouds

ZHU Yuntao^1,2,
LI Fei¹,
HU Zhaozheng^{1,2
, ,},
WU Huawei³

1. Intelligent Transportation Systems Research Center, Wuhan University of Technology, Wuhan 430063, China;
2. Wuhan University of Technology Chongqing Research Institute, Chongqing 401120, China;
3. School of Automotive and Traffic Engineering, Hubei University of Arts and Science, Xiangyang 441053, China

摘要

摘要: 为提高智能车节点定位准确率，研究了基于3D点云语义地图表征的智能车定位方法。该方法分为3个部分：基于三维激光点云的语义分割，包括地面分割，交通标志牌分割和杆状语义目标分割；面向智能车的点云语义地图表征，利用分割的语义目标投影，生成带权有向图，语义路，语义编码，再以语义编码和高精度GPS的全局位置组成语义地图表征模型；基于语义表征模型的智能车定位，包括基于GPS匹配的粗定位和基于语义编码渐进匹配的节点定位。实验在3种长度不同、复杂度不同的道路场景下进行，节点定位准确率分别为98.5%，97.6%和97.8%，结果表明所提出的定位方法节点定位准确率高、鲁棒性强且适用于不同的道路场景。
- 智能交通 /
- 节点定位 /
- 地图表征 /
- 语义分割
Abstract: In order to improve the accuracy of node localization for intelligent vehicles,an intelligent vehicles localization method based on three-dimensional point clouds semantic map representation is proposed. The method is divided into three parts. Semantic segmentation based on 3D laser point clouds includes ground segmentation,traffic signs segmentation and pole-shaped target segmentation. Semantic map representation for intelligent vehicles uses segmented targets to project. Finally directional projections with weight,semantic roads and semantic codeing are generated. The codeing and global location from high-precision GPS make up representation model. Localization based on semantic representation model includes coarse localization from GPS matching and node localization from semantic coding matching. The experiments are carried out in three road scenes with different length and complexity,and the localization accuracy is 98.5%,97.6% and 97.8%,respectively. The results show that proposed method has high accuracy and strong robustness, which is suitable for different road scenes.
- intelligent transportation /
- node localization /
- map representation /
- semantic segmentation

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参考文献(19)

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