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Neural Image Classifiers are effective but inherently hard to interpret and susceptible to adversarial attacks. Solutions to both problems exist, among others, in the form of counterfactual examples generation to enhance explainability or…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Rafael Bischof , Florian Scheidegger , Michael A. Kraus , A. Cristiano I. Malossi

Computed medical imaging systems require a computational reconstruction procedure for image formation. In order to recover a useful estimate of the object to-be-imaged when the recorded measurements are incomplete, prior knowledge about the…

Image and Video Processing · Electrical Eng. & Systems 2022-02-21 Varun A. Kelkar , Mark A. Anastasio

GAN is a deep-learning based generative approach to generate contents such as images, languages and speeches. Recently, studies have shown that GAN can also be applied to generative adversarial attack examples to fool the machine-learning…

Machine Learning · Computer Science 2019-11-15 Feng Chen , Yunkai Shang , Bo Xu , Jincheng Hu

Facial video re-targeting is a challenging problem aiming to modify the facial attributes of a target subject in a seamless manner by a driving monocular sequence. We leverage the 3D geometry of faces and Generative Adversarial Networks…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Michail Christos Doukas , Mohammad Rami Koujan , Viktoriia Sharmanska , Anastasios Roussos

Visually realistic GAN-generated facial images raise obvious concerns on potential misuse. Many effective forensic algorithms have been developed to detect such synthetic images in recent years. It is significant to assess the vulnerability…

Computer Vision and Pattern Recognition · Computer Science 2022-11-08 Zijie Lou , Gang Cao , Man Lin

In this work we present an adversarial training algorithm that exploits correlations in video to learn --without supervision-- an image generator model with a disentangled latent space. The proposed methodology requires only a few…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Facundo Tuesca , Lucas C. Uzal

Deepfake technology has raised concerns about the authenticity of digital content, necessitating the development of effective detection methods. However, the widespread availability of deepfakes has given rise to a new challenge in the form…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Sarwar Khan

Image matting and image harmonization are two important tasks in image composition. Image matting, aiming to achieve foreground boundary details, and image harmonization, aiming to make the background compatible with the foreground, are…

Computer Vision and Pattern Recognition · Computer Science 2021-08-16 Xuqian Ren , Yifan Liu , Chunlei Song

To detect bias in face recognition networks, it can be useful to probe a network under test using samples in which only specific attributes vary in some controlled way. However, capturing a sufficiently large dataset with specific control…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Nataniel Ruiz , Barry-John Theobald , Anurag Ranjan , Ahmed Hussein Abdelaziz , Nicholas Apostoloff

As face recognition is widely used in diverse security-critical applications, the study of face anti-spoofing (FAS) has attracted more and more attention. Several FAS methods have achieved promising performances if the attack types in the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Yu-Chun Wang , Chien-Yi Wang , Shang-Hong Lai

Although Deep neural networks (DNNs) are being pervasively used in vision-based autonomous driving systems, they are found vulnerable to adversarial attacks where small-magnitude perturbations into the inputs during test time cause dramatic…

Computer Vision and Pattern Recognition · Computer Science 2021-05-13 Zelun Kong , Junfeng Guo , Ang Li , Cong Liu

Face Recognition Systems that operate in unconstrained environments capture images under varying conditions,such as inconsistent lighting, or diverse face poses. These challenges require including a Face Detection module that regresses…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Quentin Le Roux , Yannick Teglia , Teddy Furon , Philippe Loubet-Moundi

The advance of Generative Adversarial Networks (GANs) enables realistic face image synthesis. However, synthesizing face images that preserve facial identity as well as have high diversity within each identity remains challenging. To…

Computer Vision and Pattern Recognition · Computer Science 2018-12-05 Yujun Shen , Bolei Zhou , Ping Luo , Xiaoou Tang

Deep learning constitutes a pivotal component within the realm of machine learning, offering remarkable capabilities in tasks ranging from image recognition to natural language processing. However, this very strength also renders deep…

Machine Learning · Computer Science 2023-09-12 Saminder Dhesi , Laura Fontes , Pedro Machado , Isibor Kennedy Ihianle , Farhad Fassihi Tash , David Ada Adama

Weakly-supervised learning has become a popular technology in recent years. In this paper, we propose a novel medical image classification algorithm, called Weakly-Supervised Generative Adversarial Networks (WSGAN), which only uses a small…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Jiawei Mao , Xuesong Yin , Yuanqi Chang , Qi Huang

In recent years, deep generative models, such as Generative Adversarial Network (GAN), has grabbed significant attention in the field of computer vision. This project focuses on the application of GAN in image deblurring with the aim of…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Zhengdong Li

Deepfakes utilise Artificial Intelligence (AI) techniques to create synthetic media where the likeness of one person is replaced with another. There are growing concerns that deepfakes can be maliciously used to create misleading and…

Computer Vision and Pattern Recognition · Computer Science 2022-06-02 Nyee Thoang Lim , Meng Yi Kuan , Muxin Pu , Mei Kuan Lim , Chun Yong Chong

One of the challenging problems in sequence generation tasks is the optimized generation of sequences with specific desired goals. Current sequential generative models mainly generate sequences to closely mimic the training data, without…

Machine Learning · Computer Science 2021-01-15 Mahmoud Hossam , Trung Le , Viet Huynh , Michael Papasimeon , Dinh Phung

Documents often exhibit various forms of degradation, which make it hard to be read and substantially deteriorate the performance of an OCR system. In this paper, we propose an effective end-to-end framework named Document Enhancement…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Mohamed Ali Souibgui , Yousri Kessentini

The challenge in sourcing attribution for forgery faces has gained widespread attention due to the rapid development of generative techniques. While many recent works have taken essential steps on GAN-generated faces, more threatening…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Zhimin Sun , Shen Chen , Taiping Yao , Bangjie Yin , Ran Yi , Shouhong Ding , Lizhuang Ma