Target-aware Bidirectional Fusion Transformer for Aerial Object Tracking

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Hauptverfasser: Sun, Xinglong, Sun, Haijiang, Jiang, Shan, Wang, Jiacheng, Wang, Jiasong
Format: Preprint
Veröffentlicht: 2025
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author Sun, Xinglong
Sun, Haijiang
Jiang, Shan
Wang, Jiacheng
Wang, Jiasong
author_facet Sun, Xinglong
Sun, Haijiang
Jiang, Shan
Wang, Jiacheng
Wang, Jiasong
contents The trackers based on lightweight neural networks have achieved great success in the field of aerial remote sensing, most of which aggregate multi-stage deep features to lift the tracking quality. However, existing algorithms usually only generate single-stage fusion features for state decision, which ignore that diverse kinds of features are required for identifying and locating the object, limiting the robustness and precision of tracking. In this paper, we propose a novel target-aware Bidirectional Fusion transformer (BFTrans) for UAV tracking. Specifically, we first present a two-stream fusion network based on linear self and cross attentions, which can combine the shallow and the deep features from both forward and backward directions, providing the adjusted local details for location and global semantics for recognition. Besides, a target-aware positional encoding strategy is designed for the above fusion model, which is helpful to perceive the object-related attributes during the fusion phase. Finally, the proposed method is evaluated on several popular UAV benchmarks, including UAV-123, UAV20L and UAVTrack112. Massive experimental results demonstrate that our approach can exceed other state-of-the-art trackers and run with an average speed of 30.5 FPS on embedded platform, which is appropriate for practical drone deployments.
format Preprint
id arxiv_https___arxiv_org_abs_2503_09951
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Target-aware Bidirectional Fusion Transformer for Aerial Object Tracking
Sun, Xinglong
Sun, Haijiang
Jiang, Shan
Wang, Jiacheng
Wang, Jiasong
Computer Vision and Pattern Recognition
The trackers based on lightweight neural networks have achieved great success in the field of aerial remote sensing, most of which aggregate multi-stage deep features to lift the tracking quality. However, existing algorithms usually only generate single-stage fusion features for state decision, which ignore that diverse kinds of features are required for identifying and locating the object, limiting the robustness and precision of tracking. In this paper, we propose a novel target-aware Bidirectional Fusion transformer (BFTrans) for UAV tracking. Specifically, we first present a two-stream fusion network based on linear self and cross attentions, which can combine the shallow and the deep features from both forward and backward directions, providing the adjusted local details for location and global semantics for recognition. Besides, a target-aware positional encoding strategy is designed for the above fusion model, which is helpful to perceive the object-related attributes during the fusion phase. Finally, the proposed method is evaluated on several popular UAV benchmarks, including UAV-123, UAV20L and UAVTrack112. Massive experimental results demonstrate that our approach can exceed other state-of-the-art trackers and run with an average speed of 30.5 FPS on embedded platform, which is appropriate for practical drone deployments.
title Target-aware Bidirectional Fusion Transformer for Aerial Object Tracking
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2503.09951