提出新框架抑制海面船只检测中的波痕依赖问题,提升弱波痕场景下的检测鲁棒性。
Hull First, Wake Second: Wake-Reliance Suppression for Robust Maritime Vessel Detection

- 先聚焦船体特征,再处理波痕线索,分离提取不同信息
- 在弱/无波痕场景下提升检测准确率,误报率下降显著
- 适合需要高鲁棒性的海上目标检测应用,如无人机监控
海上船只检测常面临船体小、对比度低或模糊,而波痕更长易检测的问题,导致模型过度依赖波痕,漏检慢速或静止船只,或误将水体杂波识别为船只。本文提出HullWake框架,采用船体优先、波痕其次的策略,将基于候选框的船体证据与方向性波痕上下文分离,通过双向候选框锚定的通道提取波痕线索,并引入波痕响应监督、波痕衰减一致性、仅波痕置信度抑制及船体-波痕解相关等机制抑制波痕主导预测。同时构建面向波痕的评估协议,涵盖弱/无波痕船只、类似波痕的难例负样本、最差组平均精度及波痕衰减后的置信度下降。在约10,000张图像的定制化波痕数据集Curated-Wake(源自Ships/Vessels in Aerial Images、SMD基准和SeaDronesSee)上进行实验,新增检测与分割级波痕标注。相比仅用边界框的检测器和掩码监督的分割基线,HullWake在整体平均精度、弱/无波痕鲁棒性、波痕类误报、最差组平均精度及波痕衰减后置信度稳定性方面均取得提升。
原文摘要 · Abstract (English)
Maritime vessel detectors often face scenes where hulls are small, low-contrast, or blurred, while wakes are longer and easier to detect. This creates a wake-reliance problem: detectors may miss slow or stationary vessels with weak wakes, or produce false positives on wake-like water clutter. We propose HullWake, a hull-first wake-second framework for robust maritime vessel detection. HullWake separates proposal-centered hull evidence from directional wake context, extracts wake cues with bidirectional proposal-anchored corridors, and suppresses wake-dominant predictions through wake response supervision, wake-attenuated consistency, wake-only confidence suppression, and hull--wake decorrelation. We also introduce a wake-oriented evaluation protocol covering weak/no-wake vessels, wake-like hard negatives, worst-group AP, and confidence drop after wake attenuation. Experiments are conducted on Curated-Wake, a wake-oriented maritime dataset of about 10,000 images curated from Ships/Vessels in Aerial Images, the SMD benchmark, and SeaDronesSee, with newly added detection- and segmentation-level wake annotations. Compared with box-only detectors and mask-supervised segmentation baselines, HullWake improves overall AP, weak/no-wake robustness, wake-like false positives, worst-group AP, and confidence stability after wake attenuation.
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