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Learning interpretable representations of visual data is an important challenge, to make machines' decisions understandable to humans and to improve generalisation outside of the training distribution. To this end, we propose a deep…

Computer Vision and Pattern Recognition · Computer Science 2024-10-25 Marian Longa , João F. Henriques

As neural networks become the tool of choice to solve an increasing variety of problems in our society, adversarial attacks become critical. The possibility of generating data instances deliberately designed to fool a network's analysis can…

Machine Learning · Computer Science 2021-03-19 Gabriel D. Cantareira , Rodrigo F. Mello , Fernando V. Paulovich

An adversarial example is a modified input image designed to cause a Machine Learning (ML) model to make a mistake; these perturbations are often invisible or subtle to human observers and highlight vulnerabilities in a model's ability to…

Cryptography and Security · Computer Science 2024-11-04 Ehsan Ganjidoost , Jeff Orchard

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

In this paper, we develop an efficient retrospective deep learning method called stacked U-Nets with self-assisted priors to address the problem of rigid motion artifacts in MRI. The proposed work exploits the usage of additional knowledge…

Image and Video Processing · Electrical Eng. & Systems 2021-11-15 Mohammed A. Al-masni , Seul Lee , Jaeuk Yi , Sewook Kim , Sung-Min Gho , Young Hun Choi , Dong-Hyun Kim

Deep neural networks (DNNs) have achieved excellent performance on several tasks and have been widely applied in both academia and industry. However, DNNs are vulnerable to adversarial machine learning attacks, in which noise is added to…

Machine Learning · Computer Science 2020-01-01 Huy H. Nguyen , Minoru Kuribayashi , Junichi Yamagishi , Isao Echizen

Video-based object detection plays a vital role in safety-critical applications. While deep learning-based object detectors have achieved impressive performance, they remain vulnerable to adversarial attacks, particularly those involving…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Sven Jacob , Weijia Shao , Gjergji Kasneci

Adversarial attacks can readily disrupt the image classification system, revealing the vulnerability of DNN-based recognition tasks. While existing adversarial perturbations are primarily applied to uncompressed images or compressed images…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Yang Sui , Zhuohang Li , Ding Ding , Xiang Pan , Xiaozhong Xu , Shan Liu , Zhenzhong Chen

Current semantic segmentation models cannot easily generalize to new object classes unseen during train time: they require additional annotated images and retraining. We propose a novel segmentation model that injects visual priors into…

Computer Vision and Pattern Recognition · Computer Science 2020-03-12 David Golub , Ahmed El-Kishky , Roberto Martín-Martín

Neural networks have been proven to be vulnerable to a variety of adversarial attacks. From a safety perspective, highly sparse adversarial attacks are particularly dangerous. On the other hand the pixelwise perturbations of sparse attacks…

Machine Learning · Computer Science 2019-09-12 Francesco Croce , Matthias Hein

Video object segmentation has been applied to various computer vision tasks, such as video editing, autonomous driving, and human-robot interaction. However, the methods based on deep neural networks are vulnerable to adversarial examples,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Ping Li , Yu Zhang , Li Yuan , Jian Zhao , Xianghua Xu , Xiaoqin Zhang

We study pre-training representations for decision-making using video data, which is abundantly available for tasks such as game agents and software testing. Even though significant empirical advances have been made on this problem, a…

Machine Learning · Computer Science 2024-03-21 Dipendra Misra , Akanksha Saran , Tengyang Xie , Alex Lamb , John Langford

Action Prediction is aimed to determine what action is occurring in a video as early as possible, which is crucial to many online applications, such as predicting a traffic accident before it happens and detecting malicious actions in the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 Dong Wang , Yuan Yuan , Qi Wang

Given the increasing threat of adversarial attacks on deep neural networks (DNNs), research on efficient detection methods is more important than ever. In this work, we take a closer look at adversarial attack detection based on the class…

Machine Learning · Computer Science 2021-07-12 Tobias Uelwer , Felix Michels , Oliver De Candido

Deep learning models are vulnerable to adversarial examples and make incomprehensible mistakes, which puts a threat on their real-world deployment. Combined with the idea of adversarial training, preprocessing-based defenses are popular and…

Computer Vision and Pattern Recognition · Computer Science 2021-10-18 Tao Bai , Jun Zhao , Lanqing Guo , Bihan Wen

Convolutional neural networks have outperformed humans in image recognition tasks, but they remain vulnerable to attacks from adversarial examples. Since these data are crafted by adding imperceptible noise to normal images, their existence…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Heng Yin , Hengwei Zhang , Jindong Wang , Ruiyu Dou

Deep learning based video frame interpolation (VIF) method, aiming to synthesis the intermediate frames to enhance video quality, have been highly developed in the past few years. This paper investigates the adversarial robustness of VIF…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Junpei Liao , Zhikai Chen , Liang Yi , Wenyuan Yang , Baoyuan Wu , Xiaochun Cao

Extensive research has demonstrated that deep neural networks (DNNs) are prone to adversarial attacks. Although various defense mechanisms have been proposed for image classification networks, fewer approaches exist for video-based models…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Nupur Thakur , Baoxin Li

Adversarial perturbations are noise-like patterns that can subtly change the data, while failing an otherwise accurate classifier. In this paper, we propose to use such perturbations within a novel contrastive learning setup to build…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 Jue Wang , Anoop Cherian

Automatic instrument segmentation in video is an essentially fundamental yet challenging problem for robot-assisted minimally invasive surgery. In this paper, we propose a novel framework to leverage instrument motion information, by…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Yueming Jin , Keyun Cheng , Qi Dou , Pheng-Ann Heng