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LEGO: Learning and Graph-Optimized Modular Tracker for Online Multi-Object Tracking with Point Clouds

Created by
  • Haebom

Author

Zhenrong Zhang, Jianan Liu, Yuxuan Xia, Tao Huang, Qing-Long Han, Hongbin Liu

Outline

This paper proposes a Learning and Graph Optimization (LEGO) modular tracker to improve data association performance in online multi-object tracking (MOT). The LEGO tracker efficiently generates an association score map that facilitates accurate and efficient matching between objects by integrating graph optimization and a self-attention mechanism. By incorporating a Kalman filter to incorporate temporal consistency of object states, the state update process is enhanced, ensuring consistent tracking. The proposed method, which uses only LiDAR, achieves top performance among online vehicle trackers on the KITTI MOT benchmark.

Takeaways, Limitations

Takeaways:
A novel method for improving the performance of LiDAR-based online multi-object tracking is presented.
Solving data association problems by effectively combining graph optimization and self-attention mechanisms.
Improving tracking accuracy by maintaining temporal consistency using Kalman filters.
Proven cutting-edge technology with excellent performance in the KITTI MOT benchmark.
Limitations:
The method presented in this paper relies solely on LiDAR data and does not consider fusion with other sensor data, such as cameras (although it has been noted to outperform LiDAR-camera fusion-based methods).
It ranked first at the time of submission, but fell to second place by the time of submission (suggesting the potential for advancement in competitive technologies).
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