论文标题
3D对抗徽标可以斗篷人类吗?
Can 3D Adversarial Logos Cloak Humans?
论文作者
论文摘要
随着对抗性攻击的趋势,研究人员试图在2D场景中欺骗训练有素的对象探测器。其中许多,具有潜在现实世界使用的一种有趣的新形式的攻击是将对抗贴(例如徽标)附加到图像上。然而,我们对3D渲染观点的对抗攻击的了解更不用说了,这对于攻击在物理世界中持续强大至关重要。本文提出了一个新的3D对抗徽标攻击:我们通过2D纹理图像构造任意形状徽标,并通过称为徽标转换的纹理映射将此图像映射到3D对抗徽标中。然后将所得的3D对抗徽标视为一种对抗纹理,可以轻松操纵其形状和位置。这大大扩展了计算机图形合成图像的对抗训练的多功能性。与传统的对抗贴片相反,这种新形式的攻击形式被映射到3D对象世界中,并通过可区分的渲染将其反向传播到2D图像域。此外,与现有的对抗贴片不同,我们的新3D对抗徽标被证明可以在模型旋转下牢固地欺骗最新的深层对象检测器,从而进一步促进了物理世界中现实攻击的一步。我们的代码可从https://github.com/tamu-vita/3d_adversarial_logo获得。
With the trend of adversarial attacks, researchers attempt to fool trained object detectors in 2D scenes. Among many of them, an intriguing new form of attack with potential real-world usage is to append adversarial patches (e.g. logos) to images. Nevertheless, much less have we known about adversarial attacks from 3D rendering views, which is essential for the attack to be persistently strong in the physical world. This paper presents a new 3D adversarial logo attack: we construct an arbitrary shape logo from a 2D texture image and map this image into a 3D adversarial logo via a texture mapping called logo transformation. The resulting 3D adversarial logo is then viewed as an adversarial texture enabling easy manipulation of its shape and position. This greatly extends the versatility of adversarial training for computer graphics synthesized imagery. Contrary to the traditional adversarial patch, this new form of attack is mapped into the 3D object world and back-propagates to the 2D image domain through differentiable rendering. In addition, and unlike existing adversarial patches, our new 3D adversarial logo is shown to fool state-of-the-art deep object detectors robustly under model rotations, leading to one step further for realistic attacks in the physical world. Our codes are available at https://github.com/TAMU-VITA/3D_Adversarial_Logo.