让目标在无人机侦察下隐身,自动生成自然伪装图案
VFACamou: View-Fused Adversarial Camouflage for Environment-Adaptive Physical Evasion

- 融合体积渲染与扩散生成,自动输出可穿戴伪装图案
- 在多视角、光照变化下攻击成功率超90%,检测率大幅下降
- 适合真实物理场景部署,兼顾隐蔽性与视觉自然度
物理世界中的对抗伪装仍面临巨大挑战,尤其在无人机侦察下,目标会持续发生几何变化和极端光照波动。现有方法或仅优化二维数字扰动,难以适应动态视角;或生成视觉不自然的纹理,无法实际部署。为此,我们提出一种端到端对抗伪装生成框架,能自动产生可穿戴的对抗图案,并在视角、姿态和光照变化的真实环境中保持稳定的攻击性能。方法结合UV体积渲染与基于扩散的纹理生成器,实现不同尺度、姿态和光照下的外观一致性。为保证环境真实性,提出光照颜色一致性估计器,提取背景主色调并引导自然纹理损失,使生成的UV纹理与周围环境匹配。采用多尺度动态训练策略,进一步提升对视角偏移和身体形变的鲁棒性。在多个主流检测器上的大量实验表明,本方法在保持高感知自然度的同时,实现强且稳定的物理攻击性能,显著降低人类检测率,未引入不自然伪影。
原文摘要 · Abstract (English)
Adversarial camouflage in the physical world remains highly challenging, particularly under UAV reconnaissance where targets undergo continuous geometric changes and extreme illumination variations. Existing methods either optimize 2D digital perturbations that fail to generalize to dynamic viewpoints or produce visually unnatural textures that cannot be deployed in real scenarios. Therefore, we propose an end-to-end framework for adversarial camouflage generation that automatically produces wearable adversarial patterns and maintains stable attack performance in real physical environments with changing viewpoints, poses, and lighting conditions. Our method integrates UV-volume rendering with a diffusion-based texture generator, enabling consistent appearance under varying scales, poses, and lighting conditions. To ensure environmental realism, we propose an illumination color consistency estimator that extracts dominant background attributes and guides a natural texture loss to align the generated UV texture with the surrounding environment. A multi-scale dynamic training strategy further enhances robustness against viewpoint shifts and body deformation. Extensive experiments across multiple mainstream detectors demonstrate that our method achieves strong and stable physical attack performance while maintaining high perceptual naturalness, reducing human detection rates without introducing unnatural artifacts.
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