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Abstract:
Unmanned aerial vehicles (UAVs) are increasingly utilized in target tracking scenarios due to their compact size and agile movement. With the rapid advancement of artificial intelligence, an increasing number of deep learning algorithms, particularly Transformer-based trackers, are being employed in UAV tracking. However, these algorithms typically have substantial data requirements. This paper investigates the integration of active learning and UAV tracking to mitigate the dataset demands of these models. We propose an active learning framework tailored for UAV target tracking scenarios. Our method, called the Uncertainty and Diversity-based Active Learning for UAV Tracking (UDALT), aims to develop a high-performance tracking model by selecting the most informative samples based on video-level uncertainty and diversity. Specifically, for the uncertainty of the tracked object, we introduce a new entropy-based evaluation formula to assess unlabeled samples and identify more challenging ones. For diversity, we first represent object types by leveraging intermediate features from the model, then apply the K-means clustering algorithm to determine the cluster centers of known object types. By calculating the distances of unlabeled samples from these centers, we ensure a balanced distribution of object types when selecting new samples. This combination of uncertainty and diversity effectively reduces labeling costs while maintaining high tracking accuracy. To further enhance tracking performance in challenging UAV scenarios, we replace the traditional Intersection over Union (IoU) computation with Foacler-IoU. This adjustment allows the trained model to better align with difficult samples, thereby improving model robustness. Finally, we evaluate our algorithm on the UAV123, UAVDT, and DTB70 datasets. The results demonstrate that our UDALT method outperforms several existing active learning methods, validating the effectiveness of our proposed tracking method.
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NEUROCOMPUTING
ISSN: 0925-2312
Year: 2025
Volume: 639
5 . 5 0 0
JCR@2023
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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