CRTrack: Low-Light Semi-Supervised Multi-object Tracking Based on Consistency Regularization
This work addresses the challenge of multi-object tracking in low-light environments, which is important for real-world applications like surveillance, but it is incremental as it builds on existing semi-supervised and consistency regularization techniques.
The paper tackles multi-object tracking in low-light conditions by constructing a new dataset (LLMOT) and proposing CRTrack, a semi-supervised method based on consistency regularization, which achieves improved performance by leveraging unannotated data to reduce annotation costs.
Multi-object tracking under low-light environments is prevalent in real life. Recent years have seen rapid development in the field of multi-object tracking. However, due to the lack of datasets and the high cost of annotations, multi-object tracking under low-light environments remains a persistent challenge. In this paper, we focus on multi-object tracking under low-light conditions. To address the issues of limited data and the lack of dataset, we first constructed a low-light multi-object tracking dataset (LLMOT). This dataset comprises data from MOT17 that has been enhanced for nighttime conditions as well as multiple unannotated low-light videos. Subsequently, to tackle the high annotation costs and address the issue of image quality degradation, we propose a semi-supervised multi-object tracking method based on consistency regularization named CRTrack. First, we calibrate a consistent adaptive sampling assignment to replace the static IoU-based strategy, enabling the semi-supervised tracking method to resist noisy pseudo-bounding boxes. Then, we design a adaptive semi-supervised network update method, which effectively leverages unannotated data to enhance model performance. Dataset and Code: https://github.com/ZJZhao123/CRTrack.