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Clean-label indiscriminate poisoning attacks add invisible perturbations to correctly labeled training images, thus dramatically reducing the generalization capability of the victim models. Recently, some defense mechanisms have been…

密码学与安全 · 计算机科学 2024-06-26 Xianlong Wang , Shengshan Hu , Yechao Zhang , Ziqi Zhou , Leo Yu Zhang , Peng Xu , Wei Wan , Hai Jin

Large-scale pre-trained language models have shown outstanding performance in a variety of NLP tasks. However, they are also known to be significantly brittle against specifically crafted adversarial examples, leading to increasing interest…

计算与语言 · 计算机科学 2023-05-12 Han Cheol Moon , Shafiq Joty , Ruochen Zhao , Megh Thakkar , Xu Chi

Group-based sparse representation has shown great potential in image denoising. However, most existing methods only consider the nonlocal self-similarity (NSS) prior of noisy input image. That is, the similar patches are collected only from…

计算机视觉与模式识别 · 计算机科学 2017-08-01 Zhiyuan Zha , Xinggan Zhang , Qiong Wang , Lan Tang , Xin Liu

Deep learning methods have shown remarkable performance in image denoising, particularly when trained on large-scale paired datasets. However, acquiring such paired datasets for real-world scenarios poses a significant challenge. Although…

图像与视频处理 · 电气工程与系统科学 2023-08-15 Xin Lin , Chao Ren , Xiao Liu , Jie Huang , Yinjie Lei

Reliable skin cancer diagnosis models play an essential role in early screening and medical intervention. Prevailing computer-aided skin cancer classification systems employ deep learning approaches. However, recent studies reveal their…

计算机视觉与模式识别 · 计算机科学 2024-02-07 Yongwei Wang , Yuan Li , Zhiqi Shen , Yuhui Qiao

Modern digital cameras rely on the sequential execution of separate image processing steps to produce realistic images. The first two steps are usually related to denoising and demosaicking where the former aims to reduce noise from the…

计算机视觉与模式识别 · 计算机科学 2019-04-02 Filippos Kokkinos , Stamatios Lefkimmiatis

By adding human-imperceptible noise to clean images, the resultant adversarial examples can fool other unknown models. Features of a pixel extracted by deep neural networks (DNNs) are influenced by its surrounding regions, and different…

计算机视觉与模式识别 · 计算机科学 2020-12-03 Lianli Gao , Qilong Zhang , Jingkuan Song , Xianglong Liu , Heng Tao Shen

We introduce a Noise-based prior Learning (NoL) approach for training neural networks that are intrinsically robust to adversarial attacks. We find that the implicit generative modeling of random noise with the same loss function used…

机器学习 · 计算机科学 2019-06-04 Priyadarshini Panda , Kaushik Roy

Neural networks have revolutionized numerous fields with their exceptional performance, yet they remain susceptible to adversarial attacks through subtle perturbations. While diffusion-based purification methods like DiffPure offer…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Chun Tong Lei , Hon Ming Yam , Zhongliang Guo , Yifei Qian , Chun Pong Lau

Black-box adversarial attacks generate adversarial samples via iterative optimizations using repeated queries. Defending deep neural networks against such attacks has been challenging. In this paper, we propose an efficient Boundary Defense…

密码学与安全 · 计算机科学 2022-02-01 Manjushree B. Aithal , Xiaohua Li

Input transformation based defense strategies fall short in defending against strong adversarial attacks. Some successful defenses adopt approaches that either increase the randomness within the applied transformations, or make the defense…

计算机视觉与模式识别 · 计算机科学 2020-05-08 Ankita Shukla , Pavan Turaga , Saket Anand

Despite the excellent performance of neural-network-based audio source separation methods and their wide range of applications, their robustness against intentional attacks has been largely neglected. In this work, we reformulate various…

声音 · 计算机科学 2021-02-16 Naoya Takahashi , Shota Inoue , Yuki Mitsufuji

Deep neural networks are vulnerable to adversarial attacks. White-box adversarial attacks can fool neural networks with small adversarial perturbations, especially for large size images. However, keeping successful adversarial perturbations…

计算机视觉与模式识别 · 计算机科学 2020-11-11 Yongwei Wang , Mingquan Feng , Rabab Ward , Z. Jane Wang , Lanjun Wang

Image smoothing represents a fundamental component of many disparate computer vision and graphics applications. In this paper, we present a unified unsupervised (label-free) learning framework that facilitates generating flexible and…

计算机视觉与模式识别 · 计算机科学 2018-11-08 Qingnan Fan , Jiaolong Yang , David Wipf , Baoquan Chen , Xin Tong

Shadow removal is a task aimed at erasing regional shadows present in images and reinstating visually pleasing natural scenes with consistent illumination. While recent deep learning techniques have demonstrated impressive performance in…

计算机视觉与模式识别 · 计算机科学 2024-03-18 Chong Wang , Yi Yu , Lanqing Guo , Bihan Wen

Leveraging the powerful representation learning capabilities, deep multi-view clustering methods have demonstrated reliable performance by effectively integrating multi-source information from diverse views in recent years. Most existing…

计算机视觉与模式识别 · 计算机科学 2025-05-28 Xihong Yang , Siwei Wang , Fangdi Wang , Jiaqi Jin , Suyuan Liu , Yue Liu , En Zhu , Xinwang Liu , Yueming Jin

Supervised deep networks have achieved promisingperformance on image denoising, by learning image priors andnoise statistics on plenty pairs of noisy and clean images. Unsupervised denoising networks are trained with only noisy images.…

计算机视觉与模式识别 · 计算机科学 2020-10-28 Jun Xu , Yuan Huang , Ming-Ming Cheng , Li Liu , Fan Zhu , Zhou Xu , Ling Shao

Though CNNs have achieved the state-of-the-art performance on various vision tasks, they are vulnerable to adversarial examples --- crafted by adding human-imperceptible perturbations to clean images. However, most of the existing…

计算机视觉与模式识别 · 计算机科学 2019-06-04 Cihang Xie , Zhishuai Zhang , Yuyin Zhou , Song Bai , Jianyu Wang , Zhou Ren , Alan Yuille

Deep neural networks are susceptible to adversarial manipulations in the input domain. The extent of vulnerability has been explored intensively in cases of $\ell_p$-bounded and $\ell_p$-minimal adversarial perturbations. However, the…

机器学习 · 计算机科学 2019-10-10 Ali Dabouei , Sobhan Soleymani , Fariborz Taherkhani , Jeremy Dawson , Nasser M. Nasrabadi

The problem of adversarial defenses for image classification, where the goal is to robustify a classifier against adversarial examples, is considered. Inspired by the hypothesis that these examples lie beyond the natural image manifold, a…

计算机视觉与模式识别 · 计算机科学 2022-12-13 Chih-Hui Ho , Nuno Vasconcelos