DMTrack: Spatio-Temporal Multimodal Tracking via Dual-Adapter

• URL: http://arxiv.org/abs/2508.01592v1
• Date: Sun, 03 Aug 2025 05:13:27 GMT
• Title: DMTrack: Spatio-Temporal Multimodal Tracking via Dual-Adapter
• Authors: Weihong Li, Shaohua Dong, Haonan Lu, Yanhao Zhang, Heng Fan, Libo Zhang,
• Abstract summary: We introduce a novel dual-temporal architecture for multimodal tracking, dubbed DMTrack.<n>Designs achieve promising- multimodal tracking performance with merely bfbf0.93M trainable parameters.<n>Experiments on five benchmarks show that DMTrack achieves state-of-the-art results.
• Score: 27.594612913364447
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In this paper, we explore adapter tuning and introduce a novel dual-adapter architecture for spatio-temporal multimodal tracking, dubbed DMTrack. The key of our DMTrack lies in two simple yet effective modules, including a spatio-temporal modality adapter (STMA) and a progressive modality complementary adapter (PMCA) module. The former, applied to each modality alone, aims to adjust spatio-temporal features extracted from a frozen backbone by self-prompting, which to some extent can bridge the gap between different modalities and thus allows better cross-modality fusion. The latter seeks to facilitate cross-modality prompting progressively with two specially designed pixel-wise shallow and deep adapters. The shallow adapter employs shared parameters between the two modalities, aiming to bridge the information flow between the two modality branches, thereby laying the foundation for following modality fusion, while the deep adapter modulates the preliminarily fused information flow with pixel-wise inner-modal attention and further generates modality-aware prompts through pixel-wise inter-modal attention. With such designs, DMTrack achieves promising spatio-temporal multimodal tracking performance with merely \textbf{0.93M} trainable parameters. Extensive experiments on five benchmarks show that DMTrack achieves state-of-the-art results. Code will be available.

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