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arXiv 2407.05383cs.CV

学习运动模糊鲁棒的视觉Transformer用于实时无人机跟踪

Learning Motion Blur Robust Vision Transformers for Real-Time UAV Tracking

College of Computer Science(计算机科学学院);Guilin University of Technology(桂林理工大学);School of Computer Science(计算机科学学院);Fudan University(复旦大学);Sun Yat-sen University(中山大学);Sichuan University(四川大学)

You Wu, Xucheng Wang, Dan Zeng, Hengzhou Ye, Xiaolan Xie, Qijun Zhao, Shuiwang Li

AI总结:

本文提出BDTrack,通过自适应动态退出Transformer模块提升实时性,并通过强制特征对模拟运动模糊不变来增强鲁棒性,在四个基准上验证了无人机实时跟踪的有效性。

摘要:

无人机(UAV)跟踪对于监视、搜索救援和自主导航等应用至关重要。然而,无人机和目标的高速运动带来了独特的挑战,包括实时处理需求和严重的运动模糊,这些都会降低现有通用跟踪器的性能。虽然单流视觉Transformer(ViT)架构在视觉跟踪中已展现出潜力,但其计算效率低下以及缺乏针对无人机场景的特定优化,限制了其在该领域的实用性。在本文中,我们通过将该框架定制为一种自适应计算框架来提升其效率,该框架能够动态退出Transformer模块以实现实时无人机跟踪。其动机在于,挑战较少的跟踪任务可以仅使用低级特征表示来充分完成。更简单的任务通常可以用要求较低的低层特征来处理。这种方法使模型能够更高效地利用计算资源,专注于复杂任务,同时为较简单的任务节省资源。本文引入的另一项重要改进是提升了ViT在处理运动模糊方面的有效性,运动模糊是无人机跟踪中由于无人机、被跟踪目标或两者快速运动而产生的常见问题。这是通过强制目标特征表示对模拟运动模糊具有不变性,从而获得运动模糊鲁棒表示来实现的。我们将所提出的方法称为BDTrack。在四个跟踪基准上开展的大量实验验证了我们方法的有效性和通用性,证明了其作为实时无人机跟踪实用且有效方法的潜力。代码发布于:https://github.com/wuyou3474/BDTrack。

英文摘要:

Unmanned aerial vehicle (UAV) tracking is critical for applications like surveillance, search-and-rescue, and autonomous navigation. However, the high-speed movement of UAVs and targets introduces unique challenges, including real-time processing demands and severe motion blur, which degrade the performance of existing generic trackers. While single-stream vision transformer (ViT) architectures have shown promise in visual tracking, their computational inefficiency and lack of UAV-specific optimizations limit their practicality in this domain. In this paper, we boost the efficiency of this framework by tailoring it into an adaptive computation framework that dynamically exits Transformer blocks for real-time UAV tracking. The motivation behind this is that tracking tasks with fewer challenges can be adequately addressed using low-level feature representations. Simpler tasks can often be handled with less demanding, lower-level features. This approach allows the model use computational resources more efficiently by focusing on complex tasks and conserving resources for easier ones. Another significant enhancement introduced in this paper is the improved effectiveness of ViTs in handling motion blur, a common issue in UAV tracking caused by the fast movements of either the UAV, the tracked objects, or both. This is achieved by acquiring motion blur robust representations through enforcing invariance in the feature representation of the target with respect to simulated motion blur. We refer to our proposed approach as BDTrack. Extensive experiments conducted on four tracking benchmarks validate the effectiveness and versatility of our approach, demonstrating its potential as a practical and effective approach for real-time UAV tracking. Code is released at: https://github.com/wuyou3474/BDTrack.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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