针对目标检测的可迁移性对抗补丁生成方法OA
A Transferable Adversarial Patch Generation Method for Object Detection
随着目标检测模型在实际应用中的广泛部署,其安全性问题日益成为研究热点.对抗攻击技术通过精心设计对抗补丁,能够有效诱导模型产生错误预测,揭示深度神经网络在决策过程中存在的内在脆弱性.为提升对抗补丁在不同检测器上的攻击迁移性,现有方法大多依赖静态权重融合策略进行联合优化,难以充分协调不同检测器在脆弱性分布及优化动态上的差异,导致攻击效果无法在各模型间兼顾,迁移性受到显著限制.针对这一挑战,提出一种基于多任务动态重加权机制的可迁移性对抗补丁生成框架.该框架设计全局校正因子和局部校正因子,分别从任务间整体优化进度及单任务细粒度收敛行为两个层面动态调整任务权重,实现多模型联合优化过程中的协调与鲁棒性提升.通过系统性的数字域与物理域实验验证,所提方法显著增强了对抗补丁在不同目标检测器上的对抗攻击迁移性,并且在真实物理域的部署中表现出优秀的攻击效果.
With the widespread deployment of object detection models in real-world applications,their security is-sues have increasingly become a research focus.Adversarial attack techniques,by carefully designing adversarial patches,can effectively induce models to produce erroneous predictions,thereby revealing the inherent vulnerabilit-ies of deep neural networks in the decision-making process.To enhance the transferability of adversarial patches across different detectors,most existing methods rely on static weight fusion strategies for joint optimization.However,such approaches struggle to fully reconcile the discrepancies in vulnerability distributions and optimiza-tion dynamics among detectors,leading to imbalanced attack effectiveness across models and significantly limiting the transferability.To address this challenge,this paper proposes a transferable adversarial patch generation frame-work based on a multi-task dynamic reweighting mechanism.The framework introduces a global correction factor and a local correction factor,which dynamically adjust task weights from two perspectives:The overall optimiza-tion progress among tasks and the fine-grained convergence behavior of individual tasks.This design enables better coordination and improved robustness during multi-model joint optimization.Extensive experiments in both the di-gital and physical domains demonstrate that the proposed method significantly enhances the adversarial transferab-ility of patches across various object detectors and achieves strong attack performance in deployments under real-world physical domain.
燕庆龙;向昕宇;张浩;马佳义
武汉大学电子信息学院 武汉 430072武汉大学电子信息学院 武汉 430072武汉大学电子信息学院 武汉 430072武汉大学电子信息学院 武汉 430072||武汉大学机器人学院 武汉 430072
目标检测对抗攻击跨模型攻击动态重加权攻击迁移性
object detectionadversarial attackcross-model attackdynamic reweightingattack transferability
《自动化学报》 2026 (4)
693-708,16
国家自然科学基金(U23B2050,62473297)资助 Supported by National Natural Science Foundation of China(U23B2050,62473297)
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