DirectTracker: 3D Multi-Object Tracking Using Direct Image Alignment and Photometric Bundle Adjustment

• URL: http://arxiv.org/abs/2209.14965v1
• Date: Thu, 29 Sep 2022 17:40:22 GMT
• Title: DirectTracker: 3D Multi-Object Tracking Using Direct Image Alignment and Photometric Bundle Adjustment
• Authors: Mariia Gladkova, Nikita Korobov, Nikolaus Demmel, Aljo\v{s}a O\v{s}ep, Laura Leal-Taix\'e and Daniel Cremers
• Abstract summary: Direct methods have shown excellent performance in the applications of visual odometry and SLAM. We propose a framework that effectively combines direct image alignment for the short-term tracking and sliding-window photometric bundle adjustment for 3D object detection.
• Score: 41.27664827586102
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Direct methods have shown excellent performance in the applications of visual odometry and SLAM. In this work we propose to leverage their effectiveness for the task of 3D multi-object tracking. To this end, we propose DirectTracker, a framework that effectively combines direct image alignment for the short-term tracking and sliding-window photometric bundle adjustment for 3D object detection. Object proposals are estimated based on the sparse sliding-window pointcloud and further refined using an optimization-based cost function that carefully combines 3D and 2D cues to ensure consistency in image and world space. We propose to evaluate 3D tracking using the recently introduced higher-order tracking accuracy (HOTA) metric and the generalized intersection over union similarity measure to mitigate the limitations of the conventional use of intersection over union for the evaluation of vision-based trackers. We perform evaluation on the KITTI Tracking benchmark for the Car class and show competitive performance in tracking objects both in 2D and 3D.

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