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Automotive Engineering ›› 2021, Vol. 43 ›› Issue (7): 1013-1021.doi: 10.19562/j.chinasae.qcgc.2021.07.008

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3D Real⁃Time Vehicle Tracking Based on Lidar

Hai Wang1,Yang Li1,Yingfeng Cai2(),Kai Sun3,Long Chen2   

  1. 1.School of Automotive and Traffic Engineering,Jiangsu University,Zhenjiang 212013
    2.Institute of Automotive Engineering,Jiangsu University,Zhenjiang 212013
    3.Hesai Instruments Inc,Shanghai 201702
  • Received:2020-11-14 Revised:2021-01-18 Online:2021-07-25 Published:2021-07-20
  • Contact: Yingfeng Cai E-mail:caicaixiao0304@126.com

Abstract:

The 3D multi?object tracking algorithm is an essential part of the intelligent vehicle perception algorithm. The existing tracking algorithm is mostly coupled with the detection algorithm to improve the accuracy, resulting in insufficient real?time performance. To solve this problem, a 3D real?time vehicle tracking algorithm based on lidar is proposed. Firstly, for the working conditions with less clutter in the detection results of lidar, a double?validation gate GNN algorithm with a simple structure is proposed to effectively improve its correlation speed and accuracy; secondly, the correlation vector and correlation distance are optimized, which improves the tracking accuracy while ensuring the generality of the algorithm. Finally, the 3D IMM?KF algorithm is used to solve the tracking problem of 3D object with changing dynamics. The proposed algorithm achieves a MOTA accuracy of 81.55% at a tracking speed of 266.1 FPS according to the public data set KITTI. Based on the self?developed unmanned vehicle platform, the verification of facing occlusion conditions shows that the algorithm has good object tracking and correlation performance.

Key words: unmanned vehicles, lidar, data association, multi?object tracking