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Deep neural networks have demonstrated cutting edge performance on various tasks including classification. However, it is well known that adversarially designed imperceptible perturbation of the input can mislead advanced classifiers. In…

Machine Learning · Computer Science 2020-01-07 Mehdi Jafarnia-Jahromi , Tasmin Chowdhury , Hsin-Tai Wu , Sayandev Mukherjee

This study investigates privacy leakage in dimensionality reduction methods through a novel machine learning-based reconstruction attack. Employing an informed adversary threat model, we develop a neural network capable of reconstructing…

Cryptography and Security · Computer Science 2025-06-03 Chayadon Lumbut , Donlapark Ponnoprat

Person re-identification (Re-ID) often faces challenges due to variations in human poses and camera viewpoints, which significantly affect the appearance of individuals across images. Existing datasets frequently lack diversity and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Inès Hyeonsu Kim , Woojeong Jin , Soowon Son , Junyoung Seo , Seokju Cho , JeongYeol Baek , Byeongwon Lee , JoungBin Lee , Seungryong Kim

With the widespread use of machine learning, concerns over its security and reliability have become prevalent. As such, many have developed defenses to harden neural networks against adversarial examples, imperceptibly perturbed inputs that…

Machine Learning · Computer Science 2022-05-09 Pratik Vaishnavi , Kevin Eykholt , Amir Rahmati

Person re-identification (re-ID) concerns the matching of subject images across different camera views in a multi camera surveillance system. One of the major challenges in person re-ID is pose variations across the camera network, which…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Amena Khatun , Simon Denman , Sridha Sridharan , Clinton Fookes

Generalizable person Re-Identification (ReID) has attracted growing attention in recent computer vision community. In this work, we construct a structural causal model among identity labels, identity-specific factors (clothes/shoes color…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Yi-Fan Zhang , Zhang Zhang , Da Li , Zhen Jia , Liang Wang , Tieniu Tan

Deep learning image classification is vulnerable to adversarial attack, even if the attacker changes just a small patch of the image. We propose a defense against patch attacks based on partially occluding the image around each candidate…

Machine Learning · Computer Science 2020-04-30 Michael McCoyd , Won Park , Steven Chen , Neil Shah , Ryan Roggenkemper , Minjune Hwang , Jason Xinyu Liu , David Wagner

State-of-the-art defense mechanisms are typically evaluated in the context of white-box attacks, which is not realistic, as it assumes the attacker can access the gradients of the target network. To protect against this scenario,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-03 Joana C. Costa , Tiago Roxo , Hugo Proença , Pedro R. M. Inácio

Recently, the field of adversarial machine learning has been garnering attention by showing that state-of-the-art deep neural networks are vulnerable to adversarial examples, stemming from small perturbations being added to the input image.…

Machine Learning · Computer Science 2020-05-19 Ravi Raju , Mikko Lipasti

As more and more artificial intelligence (AI) technologies move from the laboratory to real-world applications, the open-set and robustness challenges brought by data from the real world have received increasing attention. Data augmentation…

Machine Learning · Computer Science 2022-12-09 Zhendong Liu , Wenyu Jiang , Min guo , Chongjun Wang

Online person re-identification services face privacy breaches from potential data leakage and recovery attacks, exposing cloud-stored images to malicious attackers and triggering public concern. The privacy protection of pedestrian images…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Delong Zhang , Yi-Xing Peng , Xiao-Ming Wu , Ancong Wu , Wei-Shi Zheng

Adversarial attacks meticulously generate minuscule, imperceptible perturbations to images to deceive neural networks. Counteracting these, adversarial purification methods seek to transform adversarial input samples into clean output…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Sitong Liu , Zhichao Lian , Shuangquan Zhang , Liang Xiao

Deep neural networks (DNNs) have shown superior performance comparing to traditional image denoising algorithms. However, DNNs are inevitably vulnerable while facing adversarial attacks. In this paper, we propose an adversarial attack…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 Jie Ning , Jiebao Sun , Yao Li , Zhichang Guo , Wangmeng Zuo

Person re-identification (re-ID) is a task of matching pedestrians under disjoint camera views. To recognise paired snapshots, it has to cope with large cross-view variations caused by the camera view shift. Supervised deep neural networks…

Computer Vision and Pattern Recognition · Computer Science 2019-07-24 Lin Wu , Richang Hong , Yang Wang , Meng Wang

The vulnerability of Deep Neural Networks (DNNs) to adversarial examples has been confirmed. Existing adversarial defenses primarily aim at preventing adversarial examples from attacking DNNs successfully, rather than preventing their…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Jinwei Wang , Hao Wu , Haihua Wang , Jiawei Zhang , Xiangyang Luo , Bin Ma

Certifiably robust defenses against adversarial patches for image classifiers ensure correct prediction against any changes to a constrained neighborhood of pixels. PatchCleanser arXiv:2108.09135 [cs.CV], the state-of-the-art certified…

Computer Vision and Pattern Recognition · Computer Science 2023-06-23 Aniruddha Saha , Shuhua Yu , Arash Norouzzadeh , Wan-Yi Lin , Chaithanya Kumar Mummadi

Defending against physical adversarial attacks is a rapidly growing topic in deep learning and computer vision. Prominent forms of physical adversarial attacks, such as overlaid adversarial patches and objects, share similarities with…

Cryptography and Security · Computer Science 2020-11-13 Perry Deng , Mohammad Saidur Rahman , Matthew Wright

This work presents an end-to-end pipeline for generating, refining, and evaluating adversarial patches to compromise facial biometric systems, with applications in forensic analysis and security testing. We utilize FGSM to generate…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Shahrzad Sayyafzadeh , Hongmei Chi , Shonda Bernadin

This paper presents GReAT (Graph Regularized Adversarial Training), a novel regularization method designed to enhance the robust classification performance of deep learning models. Adversarial examples, characterized by subtle perturbations…

Machine Learning · Computer Science 2024-05-06 Samet Bayram , Kenneth Barner

Person re-identification (ReID) is an important task in wide area video surveillance which focuses on identifying people across different cameras. Recently, deep learning networks with a triplet loss become a common framework for person…

Computer Vision and Pattern Recognition · Computer Science 2017-04-07 Weihua Chen , Xiaotang Chen , Jianguo Zhang , Kaiqi Huang