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Recent progress in generative AI, primarily through diffusion models, presents significant challenges for real-world deepfake detection. The increased realism in image details, diverse content, and widespread accessibility to the general…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Chaitali Bhattacharyya , Hanxiao Wang , Feng Zhang , Sungho Kim , Xiatian Zhu

Artificial Intelligence (AI) tools have become incredibly powerful in generating synthetic images. Of particular concern are generated images that resemble photographs as they aspire to represent real world events. Synthetic photographs may…

Computers and Society · Computer Science 2024-08-14 Melanie Mathys , Marco Willi , Raphael Meier

Due to the increasing availability and functionality of image editing tools, many forensic techniques such as digital image authentication, source identification and tamper detection are important for forensic image analysis. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2020-02-07 Ruiting Shao , Edward J. Delp

Recent advances in AI technology have made the forgery of digital images and videos easier, and it has become significantly more difficult to identify such forgeries. These forgeries, if disseminated with malicious intent, can negatively…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Chia-Mu Yu , Ching-Tang Chang , Yen-Wu Ti

Differential privacy (DP) techniques can be applied to the federated learning model to protect data privacy against inference attacks to communication among the learning agents. The DP techniques, however, hinder achieving a greater…

Machine Learning · Computer Science 2021-10-08 Minseok Ryu , Kibaek Kim

Face morphing represents nowadays a big security threat in the context of electronic identity documents as well as an interesting challenge for researchers in the field of face recognition. Despite of the good performance obtained by…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Matteo Ferrara , Annalisa Franco , Davide Maltoni

In this article, we seek to elucidate challenges and opportunities for differential privacy within the federal government setting, as seen by a team of differential privacy researchers, privacy lawyers, and data scientists working closely…

Cryptography and Security · Computer Science 2024-10-23 Amol Khanna , Adam McCormick , Andre Nguyen , Chris Aguirre , Edward Raff

Distinguishing manipulated from real images is becoming increasingly difficult as new sophisticated image forgery approaches come out by the day. Naive classification approaches based on Convolutional Neural Networks (CNNs) show excellent…

Computer Vision and Pattern Recognition · Computer Science 2019-11-28 Davide Cozzolino , Justus Thies , Andreas Rössler , Christian Riess , Matthias Nießner , Luisa Verdoliva

Digital forensics and cloud forensics are increasingly important fields that face a range of challenges. This study aims to assess the general challenges faced in these fields. A literature review was conducted to identify the major…

Cryptography and Security · Computer Science 2023-05-08 Ahmed MohanRaj Alenezi

Person re-identification (re-ID) is a very active area of research in computer vision, due to the role it plays in video surveillance. Currently, most methods only address the task of matching between colour images. However, in poorly-lit…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Nima Mohammadi Meshky , Sara Iodice , Krystian Mikolajczyk

Recent DeepFake detection methods have shown excellent performance on public datasets but are significantly degraded on new forgeries. Solving this problem is important, as new forgeries emerge daily with the continuously evolving…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Qingxuan Lv , Yuezun Li , Junyu Dong , Sheng Chen , Hui Yu , Huiyu Zhou , Shu Zhang

The area of Handwritten Signature Verification has been broadly researched in the last decades, but remains an open research problem. The objective of signature verification systems is to discriminate if a given signature is genuine…

Computer Vision and Pattern Recognition · Computer Science 2019-01-25 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

The remarkable success of face recognition (FR) has endangered the privacy of internet users particularly in social media. Recently, researchers turned to use adversarial examples as a countermeasure. In this paper, we assess the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Mahdi Ghafourian , Julian Fierrez , Luis Felipe Gomez , Ruben Vera-Rodriguez , Aythami Morales , Zohra Rezgui , Raymond Veldhuis

Development and exploitation of technology have led to the further expansion and complexity of digital crimes. On the other hand, the growing volume of data and, subsequently, evidence is a severe challenge in digital forensics. In recent…

Cryptography and Security · Computer Science 2023-06-09 Tahereh Nayerifard , Haleh Amintoosi , Abbas Ghaemi Bafghi , Ali Dehghantanha

We propose a novel architecture which is able to automatically anonymize faces in images while retaining the original data distribution. We ensure total anonymization of all faces in an image by generating images exclusively on privacy-safe…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Håkon Hukkelås , Rudolf Mester , Frank Lindseth

Great progress has been achieved in the community of autonomous driving in the past few years. As a safety-critical problem, however, anomaly detection is a huge hurdle towards a large-scale deployment of autonomous vehicles in the real…

Computer Vision and Pattern Recognition · Computer Science 2023-01-04 Daniel Bogdoll , Meng Zhang , Maximilian Nitsche , J. Marius Zöllner

With the rise of cameras and smart sensors, humanity generates an exponential amount of data. This valuable information, including underrepresented cases like AI in medical settings, can fuel new deep-learning tools. However, data…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Zikui Cai , Zhongpai Gao , Benjamin Planche , Meng Zheng , Terrence Chen , M. Salman Asif , Ziyan Wu

Image forensics have attracted wide attention during the past decade. Though many forensic methods have been proposed to identify image forgeries, most of them are targeted ones, since their proposed features are highly dependent on the…

Multimedia · Computer Science 2015-03-18 Haodong Li , Weiqi Luo , Xiaoqing Qiu , Jiwu Huang

Fingerprint presentation attack detection is becoming an increasingly challenging problem due to the continuous advancement of attack preparation techniques, which generate realistic-looking fake fingerprint presentations. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2020-06-22 Leonidas Spinoulas , Hengameh Mirzaalian , Mohamed Hussein , Wael AbdAlmageed

Deep learning has been successfully applied to solve various complex problems ranging from big data analytics to computer vision and human-level control. Deep learning advances however have also been employed to create software that can…

Computer Vision and Pattern Recognition · Computer Science 2022-08-12 Thanh Thi Nguyen , Quoc Viet Hung Nguyen , Dung Tien Nguyen , Duc Thanh Nguyen , Thien Huynh-The , Saeid Nahavandi , Thanh Tam Nguyen , Quoc-Viet Pham , Cuong M. Nguyen