DPTrack:Directional Kernel-Guided Prompt Learning for Robust Nighttime Aerial Tracking

• URL: http://arxiv.org/abs/2510.15449v1
• Date: Fri, 17 Oct 2025 09:07:19 GMT
• Title: DPTrack:Directional Kernel-Guided Prompt Learning for Robust Nighttime Aerial Tracking
• Authors: Zhiqiang Zhu, Xinbo Gao, Wen Lu, Jie Li, Zhaoyang Wang, Mingqian Ge,
• Abstract summary: DPTrack is a prompt-based aerial tracker for nighttime scenarios.<n>It encodes the given object's attribute features into the directional kernel.<n>A kernel-guided prompt module propagates the kernel across the features of the search region.
• Score: 51.02908607542803
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Existing nighttime aerial trackers based on prompt learning rely solely on spatial localization supervision, which fails to provide fine-grained cues that point to target features and inevitably produces vague prompts. This limitation impairs the tracker's ability to accurately focus on the object features and results in trackers still performing poorly. To address this issue, we propose DPTrack, a prompt-based aerial tracker designed for nighttime scenarios by encoding the given object's attribute features into the directional kernel enriched with fine-grained cues to generate precise prompts. Specifically, drawing inspiration from visual bionics, DPTrack first hierarchically captures the object's topological structure, leveraging topological attributes to enrich the feature representation. Subsequently, an encoder condenses these topology-aware features into the directional kernel, which serves as the core guidance signal that explicitly encapsulates the object's fine-grained attribute cues. Finally, a kernel-guided prompt module built on channel-category correspondence attributes propagates the kernel across the features of the search region to pinpoint the positions of target features and convert them into precise prompts, integrating spatial gating for robust nighttime tracking. Extensive evaluations on established benchmarks demonstrate DPTrack's superior performance. Our code will be available at https://github.com/zzq-vipsl/DPTrack.

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