1 code implementation • 5 Oct 2022 • Shengming Yuan, Qilong Zhang, Lianli Gao, Yaya Cheng, Jingkuan Song
Unrestricted color attacks, which manipulate semantically meaningful color of an image, have shown their stealthiness and success in fooling both human eyes and deep neural networks.
1 code implementation • CVPR 2022 • Ye Liu, Yaya Cheng, Lianli Gao, Xianglong Liu, Qilong Zhang, Jingkuan Song
Specifically, by observing that adversarial examples to a specific defense model follow some regularities in their starting points, we design an Adaptive Direction Initialization strategy to speed up the evaluation.
1 code implementation • 25 Oct 2021 • Yaya Cheng, Jingkuan Song, Xiaosu Zhu, Qilong Zhang, Lianli Gao, Heng Tao Shen
Based on the linearity hypothesis, under $\ell_\infty$ constraint, $sign$ operation applied to the gradients is a good choice for generating perturbations.
1 code implementation • 25 May 2021 • Lianli Gao, Yaya Cheng, Qilong Zhang, Xing Xu, Jingkuan Song
However, the current choice of pixel-wise Euclidean Distance to measure the discrepancy is questionable because it unreasonably imposes a spatial-consistency constraint on the source and target features.