DiffPatch: Generating Customizable Adversarial Patches using Diffusion Model

• URL: http://arxiv.org/abs/2412.01440v2
• Date: Thu, 26 Dec 2024 06:47:08 GMT
• Title: DiffPatch: Generating Customizable Adversarial Patches using Diffusion Model
• Authors: Zhixiang Wang, Guangnan Ye, Xiaosen Wang, Siheng Chen, Zhibo Wang, Xingjun Ma, Yu-Gang Jiang,
• Abstract summary: We propose a novel diffusion-based customizable patch generation framework termed DiffPatch. Our approach enables users to utilize a reference image as the source, rather than starting from random noise. We have created a physical adversarial T-shirt dataset, AdvPatch-1K, specifically targeting YOLOv5s.
• Score: 88.14122962946858
• License:
• Abstract: Physical adversarial patches printed on clothing can easily allow individuals to evade person detectors. However, most existing adversarial patch generation methods prioritize attack effectiveness over stealthiness, resulting in patches that are aesthetically unpleasing. Although existing methods using generative adversarial networks or diffusion models can produce more natural-looking patches, they often struggle to balance stealthiness with attack effectiveness and lack flexibility for user customization. To address these challenges, we propose a novel diffusion-based customizable patch generation framework termed DiffPatch, specifically tailored for creating naturalistic and customizable adversarial patches. Our approach enables users to utilize a reference image as the source, rather than starting from random noise, and incorporates masks to craft naturalistic patches of various shapes, not limited to squares. To prevent the original semantics from being lost during the diffusion process, we employ Null-text inversion to map random noise samples to a single input image and generate patches through Incomplete Diffusion Optimization (IDO). Notably, while maintaining a natural appearance, our method achieves a comparable attack performance to state-of-the-art non-naturalistic patches when using similarly sized attacks. Using DiffPatch, we have created a physical adversarial T-shirt dataset, AdvPatch-1K, specifically targeting YOLOv5s. This dataset includes over a thousand images across diverse scenarios, validating the effectiveness of our attack in real-world environments. Moreover, it provides a valuable resource for future research.

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