汽车工程 ›› 2019, Vol. 41 ›› Issue (7): 779-754.doi: 10.19562/j.chinasae.qcgc.2019.07.008

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采用64线激光雷达的实时道路障碍物检测与分类算法的研究

娄新雨1, 王海1, 3, 蔡英凤2, 郑正扬1, 陈龙2   

  1. 1.江苏大学汽车与交通工程学院,镇江 212013;
    2.江苏大学汽车工程研究院,镇江 212013;
    3.香港大学机器人与自动化实验室,香港 999077
  • 出版日期:2019-07-25 发布日期:2019-07-30
  • 通讯作者: 蔡英凤,教授,博士生导师,E-mail:caicaixiao0304@126.com。
  • 基金资助:
    国家重点研发计划(2018YFB0105003)、国家自然科学基金(61601203,U1664258,U1764257,U1762264,61773184)、江苏省优秀青年基金(BK20180100)、江苏省重点研发计划(BE2016149)、江苏省战略性新兴产业发展重大专项(苏发改高技发(2016)1094号、(2015)1084号)、镇江市重点研发计划(GY2017006)和江苏高校境外研修计划资助。

A Research on an Algorithm for Real-time Detection and Classification of Road Obstacle by Using 64-line Lidar

Lou Xinyu1, Wang Hai1,3, Cai Yingfeng2, Zheng Zhengyang1 ,Chen Long2   

  1. 1.School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013;
    2.Institute of Automotive Engineering, Jiangsu University, Zhenjiang 212013;
    3.Robotic and Automation Lab, University of Hongkong, Hongkong 999077
  • Online:2019-07-25 Published:2019-07-30

摘要: 针对64线激光雷达数据量大,导致无人自主车的障碍物检测实时性差的问题,提出一种兼顾有效性和实时性的目标检测和分类算法。该算法首先通过多特征多层高度地图分离路面、障碍物和悬挂物;然后采用基于动态距离阈值的网格聚类算法对障碍物进行聚类,并结合相邻两个障碍物的运动状态信息对聚类结果进行修正,提高聚类的准确率;最后使用SVM对障碍物进行检测和分类。实验结果表明:该算法最优识别率达89.77%,耗时约为95 ms,在保证检测和分类准确率的基础上,满足无人自主车在道路行驶时检测障碍物的实时性要求,具有显著的工程实用价值。

关键词: 64线激光雷达, 目标检测, 目标分类, 实时性

Abstract: In view of the poor real-time performance of unmanned autonomous vehicle in detecting obstacles due to the huge volume of 64-line lidar data, an object detection and classification algorithm with good effectiveness and real-time performance is proposed. The algorithm separates the road, obstacle and suspended object by multi-feature / multi-layer elevation map. Then the grid clustering algorithm based on dynamic distance threshold is used to cluster the obstacles, with the clustering results corrected according to the motion state information of two adjacent obstacles to enhance clustering accuracy. Finally, SVM is adopted to detect and classify obstacles. The experiment results show that the algorithm attains a best identification rate of 89.77% with a duration of 95 ms, meeting the real-time requirements of unmanned vehicle in detecting obstacle on road, while ensuring the accuracy of detection and classification, having a significant engineering application value.

Key words: 64-line Lidar, object detection, object classification, real-time