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Face anti-spoofing (FAS) is an indispensable and widely used module in face recognition systems. Although high accuracy has been achieved, a FAS system will never be perfect due to the non-stationary applied environments and the potential…

计算机视觉与模式识别 · 计算机科学 2021-06-29 Bowen Yang , Jing Zhang , Zhenfei Yin , Jing Shao

Machine learning models have demonstrated vulnerability to adversarial attacks, more specifically misclassification of adversarial examples. In this paper, we investigate an attack-agnostic defense against adversarial attacks on…

计算机视觉与模式识别 · 计算机科学 2022-03-07 Shuo Wang , Surya Nepal , Alsharif Abuadbba , Carsten Rudolph , Marthie Grobler

Recently, deep neural networks have significant progress and successful application in various fields, but they are found vulnerable to attack instances, e.g., adversarial examples. State-of-art attack methods can generate attack images by…

机器学习 · 计算机科学 2019-03-19 Ping Yu , Kaitao Song , Jianfeng Lu

Recent studies imply that deep neural networks are vulnerable to adversarial examples -- inputs with a slight but intentional perturbation are incorrectly classified by the network. Such vulnerability makes it risky for some…

计算机视觉与模式识别 · 计算机科学 2021-07-27 Jinyu Yang , Chunyuan Li , Weizhi An , Hehuan Ma , Yuzhi Guo , Yu Rong , Peilin Zhao , Junzhou Huang

Adversarial examples have gained tons of attention in recent years. Many adversarial attacks have been proposed to attack image classifiers, but few work shift attention to object detectors. In this paper, we propose Sparse Adversarial…

计算机视觉与模式识别 · 计算机科学 2020-12-29 Jiayu Bao

Adversarial attacks constitute a notable threat to machine learning systems, given their potential to induce erroneous predictions and classifications. However, within real-world contexts, the essential specifics of the deployed model are…

计算机视觉与模式识别 · 计算机科学 2023-12-21 Jingwen Ye , Ruonan Yu , Songhua Liu , Xinchao Wang

The increasingly pervasive facial recognition (FR) systems raise serious concerns about personal privacy, especially for billions of users who have publicly shared their photos on social media. Several attempts have been made to protect…

计算机视觉与模式识别 · 计算机科学 2023-05-24 Chun Pong Lau , Jiang Liu , Rama Chellappa

Deep learning based image recognition systems have been widely deployed on mobile devices in today's world. In recent studies, however, deep learning models are shown vulnerable to adversarial examples. One variant of adversarial examples,…

计算机视觉与模式识别 · 计算机科学 2021-11-23 Tao Bai , Jinqi Luo , Jun Zhao

Adversarial attacks pose a substantial threat to computer vision system security, but the social media industry constantly faces another form of "adversarial attack" in which the hackers attempt to upload inappropriate images and fool the…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Xiangyu Qu , Stanley H. Chan

Near-infrared (NIR) face recognition systems, which can operate effectively in low-light conditions or in the presence of makeup, exhibit vulnerabilities when subjected to physical adversarial attacks. To further demonstrate the potential…

计算机视觉与模式识别 · 计算机科学 2025-04-23 Songyan Xie , Jinghang Wen , Encheng Su , Qiucheng Yu

There are five features to consider when using generative adversarial networks to apply makeup to photos of the human face. These features include (1) facial components, (2) interactive color adjustments, (3) makeup variations, (4)…

计算机视觉与模式识别 · 计算机科学 2020-09-25 Daichi Horita , Kiyoharu Aizawa

With various face presentation attacks emerging continually, face anti-spoofing (FAS) approaches based on domain generalization (DG) have drawn growing attention. Existing DG-based FAS approaches always capture the domain-invariant features…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Qianyu Zhou , Ke-Yue Zhang , Taiping Yao , Ran Yi , Shouhong Ding , Lizhuang Ma

With the flourishing prosperity of generative models, manipulated facial images have become increasingly accessible, raising concerns regarding privacy infringement and societal trust. In response, proactive defense strategies embed…

密码学与安全 · 计算机科学 2025-10-03 Yue Li , Linying Xue , Dongdong Lin , Qiushi Li , Hui Tian , Hongxia Wang

The success of deep face recognition (FR) systems has raised serious privacy concerns due to their ability to enable unauthorized tracking of users in the digital world. Previous studies proposed introducing imperceptible adversarial noises…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Minghui Li , Jiangxiong Wang , Hao Zhang , Ziqi Zhou , Shengshan Hu , Xiaobing Pei

Adding perturbations via utilizing auxiliary gradient information or discarding existing details of the benign images are two common approaches for generating adversarial examples. Though visual imperceptibility is the desired property of…

计算机视觉与模式识别 · 计算机科学 2023-01-18 Zihan Chen , Ziyue Wang , Junjie Huang , Wentao Zhao , Xiao Liu , Dejian Guan

Designing face recognition systems that are capable of matching face images obtained in the thermal spectrum with those obtained in the visible spectrum is a challenging problem. In this work, we propose the use of semantic-guided…

计算机视觉与模式识别 · 计算机科学 2019-03-05 Cunjian Chen , Arun Ross

In recent year, the compact representations based on activations of Convolutional Neural Network (CNN) achieve remarkable performance in image retrieval. However, retrieval of some interested object that only takes up a small part of the…

计算机视觉与模式识别 · 计算机科学 2019-04-01 Jian Xu , Chunheng Wang , Cunzhao Shi , Baihua Xiao

In order to prevent illegal or unauthorized access of image data such as human faces and ensure legitimate users can use authorization-protected data, reversible adversarial attack technique is rise. Reversible adversarial examples (RAE)…

图像与视频处理 · 电气工程与系统科学 2021-05-26 Zhaoxia Yin , Hua Wang , Li Chen , Jie Wang , Weiming Zhang

We explore adversarial attacks against retrieval-augmented generation (RAG) systems to identify their vulnerabilities. We focus on generating human-imperceptible adversarial examples and introduce a novel imperceptible retrieve-to-generate…

信息检索 · 计算机科学 2025-05-29 Hongru Song , Yu-an Liu , Ruqing Zhang , Jiafeng Guo , Jianming Lv , Maarten de Rijke , Xueqi Cheng

We introduce a new attack paradigm that embeds hidden adversarial capabilities directly into diffusion models via fine-tuning, without altering their observable behavior or requiring modifications during inference. Unlike prior approaches…

机器学习 · 计算机科学 2025-04-15 Lucas Beerens , Desmond J. Higham