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In the rapidly evolving field of artificial intelligence, machine learning emerges as a key technology characterized by its vast potential and inherent risks. The stability and reliability of these models are important, as they are frequent…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Haibo Zhang , Zhihua Yao , Kouichi Sakurai , Takeshi Saitoh

We propose a test-time defense mechanism against adversarial attacks: imperceptible image perturbations that significantly alter the predictions of a model. Unlike existing methods that rely on feature filtering or smoothing, which can lead…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Dong Lao , Yuxiang Zhang , Haniyeh Ehsani Oskouie , Yangchao Wu , Alex Wong , Stefano Soatto

Adversarial robustness is one of the most challenging problems in Deep Learning and Computer Vision research. All the state-of-the-art techniques require a time-consuming procedure that creates cleverly perturbed images. Due to its cost,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-22 Matteo Terzi , Mattia Carletti , Gian Antonio Susto

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

Nowadays, Deep Learning as a service can be deployed in Internet of Things (IoT) to provide smart services and sensor data processing. However, recent research has revealed that some Deep Neural Networks (DNN) can be easily misled by adding…

Cryptography and Security · Computer Science 2020-10-22 Ling Wang , Cheng Zhang , Zejian Luo , Chenguang Liu , Jie Liu , Xi Zheng , Athanasios Vasilakos

Adversarial attacks present a significant security risk to image recognition tasks. Defending against these attacks in a real-life setting can be compared to the way antivirus software works, with a key consideration being how well the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Haibo Zhang , Zhihua Yao , Kouichi Sakurai

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

Image classification is vulnerable to adversarial attacks. This work investigates the robustness of Saak transform against adversarial attacks towards high performance image classification. We develop a complete image classification system…

Computer Vision and Pattern Recognition · Computer Science 2019-02-11 Thiyagarajan Ramanathan , Abinaya Manimaran , Suya You , C-C Jay Kuo

We propose a new defense mechanism against adversarial attacks inspired by an optical co-processor, providing robustness without compromising natural accuracy in both white-box and black-box settings. This hardware co-processor performs a…

Computer Vision and Pattern Recognition · Computer Science 2022-10-03 Alessandro Cappelli , Ruben Ohana , Julien Launay , Laurent Meunier , Iacopo Poli , Florent Krzakala

The notion of adversarial attacks on image classification models based on convolutional neural networks (CNN) is introduced in this work. To classify images, deep learning models called CNNs are frequently used. However, when the networks…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Jaydip Sen , Abhiraj Sen , Ananda Chatterjee

The diffusion-based adversarial purification methods attempt to drown adversarial perturbations into a part of isotropic noise through the forward process, and then recover the clean images through the reverse process. Due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Gaozheng Pei , Ke Ma , Yingfei Sun , Qianqian Xu , Qingming Huang

Recently, the area of adversarial attacks on image quality metrics has begun to be explored, whereas the area of defences remains under-researched. In this study, we aim to cover that case and check the transferability of adversarial…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Aleksandr Gushchin , Anna Chistyakova , Vladislav Minashkin , Anastasia Antsiferova , Dmitriy Vatolin

Recently, adversarial attacks on image classification networks by the AutoAttack (Croce and Hein, 2020b) framework have drawn a lot of attention. While AutoAttack has shown a very high attack success rate, most defense approaches are…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Peter Lorenz , Paula Harder , Dominik Strassel , Margret Keuper , Janis Keuper

Adversarial patch attacks pose a significant threat to the practical deployment of deep learning systems. However, existing research primarily focuses on image pre-processing defenses, which often result in reduced classification accuracy…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Nandish Chattopadhyay , Amira Guesmi , Muhammad Shafique

The field of computer vision has witnessed phenomenal progress in recent years partially due to the development of deep convolutional neural networks. However, deep learning models are notoriously sensitive to adversarial examples which are…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Haofeng Li , Yirui Zeng , Guanbin Li , Liang Lin , Yizhou Yu

Adversarial examples pose significant threats to deep neural networks (DNNs), and their property of transferability in the black-box setting has led to the emergence of transfer-based attacks, making it feasible to target real-world…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Yuyang Luo , Xiaosen Wang , Zhijin Ge , Yingzhe He

In recent times, deep neural networks (DNNs) have been successfully adopted for various applications. Despite their notable achievements, it has become evident that DNNs are vulnerable to sophisticated adversarial attacks, restricting their…

Computer Vision and Pattern Recognition · Computer Science 2025-11-03 Alik Pramanick , Mayank Bansal , Utkarsh Srivastava , Suklav Ghosh , Arijit Sur

Deep learning methods have shown state of the art performance in a range of tasks from computer vision to natural language processing. However, it is well known that such systems are vulnerable to attackers who craft inputs in order to…

Machine Learning · Computer Science 2020-09-29 Giulio Zizzo , Chris Hankin , Sergio Maffeis , Kevin Jones

Frequency spectrum has played a significant role in learning unique and discriminating features for object recognition. Both low and high frequency information present in images have been extracted and learnt by a host of representation…

Computer Vision and Pattern Recognition · Computer Science 2020-10-30 Divyam Anshumaan , Akshay Agarwal , Mayank Vatsa , Richa Singh

Fooling people with highly realistic fake images generated with Deepfake or GANs brings a great social disturbance to our society. Many methods have been proposed to detect fake images, but they are vulnerable to adversarial perturbations…

Computer Vision and Pattern Recognition · Computer Science 2021-06-04 Quanyu Liao , Yuezun Li , Xin Wang , Bin Kong , Bin Zhu , Siwei Lyu , Youbing Yin , Qi Song , Xi Wu