Hyperspectral Object Tracking With Dual-Stream Prompt

Hyperspectral images, rich in spectral details, offeradvantages for object tracking across diverse scenarios. Current hyperspectral tracking often fine-tunes parameters using pretrained RGB trackers, but this manner is suboptimal due to redundancy in spectral bands and limited training data. Existing hyperspectral trackers also underuse temporal information. To address these issues, we propose a unified spectral-spatiotemporal multimodal dual-stream prompt hyperspectral object tracking, named HDSP. We design a density clustering-based band selection module (BSM) to preserve spectral prompt information efficiently. Using the generated bands and temporal data as multimodal prompts, a dual-stream visual prompter is proposed. Designed multimodal dual-stream visual prompter (MDVP) transforms the multimodal input into a single modality, enhancing the foundational modality’s representation capabilities for hyperspectral tracking. Experiments on hyperspectral videos (HSVs) tracking datasets demonstrate that the proposed tracker achieves state-of-the-art performance. The source code is available at https://github.com/rayyao/HDSP.