Transformer RGBT Tracking with Spatio-Temporal Multimodal Tokens

• URL: http://arxiv.org/abs/2401.01674v1
• Date: Wed, 3 Jan 2024 11:16:38 GMT
• Title: Transformer RGBT Tracking with Spatio-Temporal Multimodal Tokens
• Authors: Dengdi Sun, Yajie Pan, Andong Lu, Chenglong Li, Bin Luo
• Abstract summary: We propose a novel Transformer-T tracking approach, which mixes multimodal tokens from static templates and multimodal search Transformer to handle target appearance changes. Our module is inserted into the transformer network and inherits joint feature extraction, searchtemplate matching, and cross-temporal interaction. Experiments on three RGBT benchmark datasets show that the proposed approach maintains competitive performance compared to other state-of-the-art tracking algorithms.
• Score: 13.608089918718797
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Many RGBT tracking researches primarily focus on modal fusion design, while overlooking the effective handling of target appearance changes. While some approaches have introduced historical frames or fuse and replace initial templates to incorporate temporal information, they have the risk of disrupting the original target appearance and accumulating errors over time. To alleviate these limitations, we propose a novel Transformer RGBT tracking approach, which mixes spatio-temporal multimodal tokens from the static multimodal templates and multimodal search regions in Transformer to handle target appearance changes, for robust RGBT tracking. We introduce independent dynamic template tokens to interact with the search region, embedding temporal information to address appearance changes, while also retaining the involvement of the initial static template tokens in the joint feature extraction process to ensure the preservation of the original reliable target appearance information that prevent deviations from the target appearance caused by traditional temporal updates. We also use attention mechanisms to enhance the target features of multimodal template tokens by incorporating supplementary modal cues, and make the multimodal search region tokens interact with multimodal dynamic template tokens via attention mechanisms, which facilitates the conveyance of multimodal-enhanced target change information. Our module is inserted into the transformer backbone network and inherits joint feature extraction, search-template matching, and cross-modal interaction. Extensive experiments on three RGBT benchmark datasets show that the proposed approach maintains competitive performance compared to other state-of-the-art tracking algorithms while running at 39.1 FPS.

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