Towards Stable 3D Object Detection

• URL: http://arxiv.org/abs/2407.04305v1
• Date: Fri, 5 Jul 2024 07:17:58 GMT
• Title: Towards Stable 3D Object Detection
• Authors: Jiabao Wang, Qiang Meng, Guochao Liu, Liujiang Yan, Ke Wang, Ming-Ming Cheng, Qibin Hou,
• Abstract summary: Stability Index (SI) is a new metric that can comprehensively evaluate the stability of 3D detectors in terms of confidence, box localization, extent, and heading. To help models improve their stability, we introduce a general and effective training strategy, called Prediction Consistency Learning (PCL) PCL essentially encourages the prediction consistency of the same objects under different timestamps and augmentations, leading to enhanced detection stability.
• Score: 64.49059005467817
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In autonomous driving, the temporal stability of 3D object detection greatly impacts the driving safety. However, the detection stability cannot be accessed by existing metrics such as mAP and MOTA, and consequently is less explored by the community. To bridge this gap, this work proposes Stability Index (SI), a new metric that can comprehensively evaluate the stability of 3D detectors in terms of confidence, box localization, extent, and heading. By benchmarking state-of-the-art object detectors on the Waymo Open Dataset, SI reveals interesting properties of object stability that have not been previously discovered by other metrics. To help models improve their stability, we further introduce a general and effective training strategy, called Prediction Consistency Learning (PCL). PCL essentially encourages the prediction consistency of the same objects under different timestamps and augmentations, leading to enhanced detection stability. Furthermore, we examine the effectiveness of PCL with the widely-used CenterPoint, and achieve a remarkable SI of 86.00 for vehicle class, surpassing the baseline by 5.48. We hope our work could serve as a reliable baseline and draw the community's attention to this crucial issue in 3D object detection. Codes will be made publicly available.

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