DNNs are vulnerable to adversarial examples, which poses great security concerns for security-critical systems. In this paper, a novel adaptive-patch-based physical attack (AP-PA) framework is proposed, which aims to generate adversarial patches that are adaptive in both physical dynamics and varying scales, and by which the particular targets can be hidden from being detected. Furthermore, the adversarial patch is also gifted with attack effectiveness against all targets of the same class with a patch outside the target (No need to smear targeted objects) and robust enough in the physical world. In addition, a new loss is devised to consider more available information of detected objects to optimize the adversarial patch, which can significantly improve the patch's attack efficacy (Average precision drop up to 87.86% and 85.48% in white-box and black-box settings, respectively) and optimizing efficiency. We also establish one of the first comprehensive, coherent, and rigorous benchmarks to evaluate the attack efficacy of adversarial patches on aerial detection tasks. Finally, several proportionally scaled experiments are performed physically to demonstrate that the elaborated adversarial patches can successfully deceive aerial detection algorithms in dynamic physical circumstances. The code is available at https://github.com/JiaweiLian/AP-PA.
翻译:DNNs很容易受到对抗性例子的影响,这对安全临界系统提出了巨大的安全关切。本文提出了一个新的基于适应性批量的人身攻击框架(AP-PA),目的是产生在物理动态和不同规模上都适应性强的对抗性补丁,从而可以隐藏特定目标,使其不被探测出来。此外,对抗性补丁还具有针对同一类别所有目标的攻击效果的天赋,在目标之外有补丁(不需要涂抹目标对象),在物理界足够强大。此外,还设计了一个新的损失,以考虑关于所探测到的物体的更多可用信息,以优化对抗性攻击补丁,这可以显著提高补丁攻击效果(在白箱和黑箱环境中,平均精确率下降至87.86%和85.48%),并优化效率。我们还建立了第一个全面、连贯和严格的基准之一,用以评价对空中探测任务进行对抗性补丁的攻击效果。最后,进行了一些按比例缩放的实验,以证明精心设计的对抗性补丁能够在动态物理环境下成功欺骗空中探测算法。该代码可在 http://www/pas/pas.