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Sophisticated phishing attacks have emerged as a major cybersecurity threat, becoming more common and difficult to prevent. Though machine learning techniques have shown promise in detecting phishing attacks, they function mainly as "black…

Cryptography and Security · Computer Science 2025-03-28 Bryan Lim , Roman Huerta , Alejandro Sotelo , Anthonie Quintela , Priyanka Kumar

This chapter provides an introduction to Presentation Attack Detection (PAD) in fingerprint biometrics, also coined anti-spoofing, describes early developments in this field, and briefly summarizes recent trends and open issues.

Cryptography and Security · Computer Science 2023-04-17 Javier Galbally , Julian Fierrez , Raffaele Cappelli , Gian Luca Marcialis

Deep hiding, embedding images into another using deep neural networks, has shown its great power in increasing the message capacity and robustness. In this paper, we conduct an in-depth study of state-of-the-art deep hiding schemes and…

Cryptography and Security · Computer Science 2021-06-08 Tao Xiang , Hangcheng Liu , Shangwei Guo , Tianwei Zhang

Fingerprint presentation attack detection (FPAD) is becoming an increasingly challenging problem due to the continuous advancement of attack techniques, which generate `realistic-looking' fake fingerprint presentations. Recently, laser…

Machine Learning · Computer Science 2019-06-07 Hengameh Mirzaalian , Mohamed Hussein , Wael Abd-Almageed

The rapid development of deepfake video technology has not only facilitated artistic creation but also made it easier to spread misinformation. Traditional deepfake video detection (DVD) methods face issues such as a lack of transparency in…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Haoran Sun , Chen Cai , Huiping Zhuang , Kong Aik Lee , Lap-Pui Chau , Yi Wang

This paper proposes the first, known to us, open source presentation attack detection (PAD) solution to distinguish between authentic iris images (possibly wearing clear contact lenses) and irises with textured contact lenses. This software…

Computer Vision and Pattern Recognition · Computer Science 2019-05-10 Joseph McGrath , Kevin W. Bowyer , Adam Czajka

Face verification systems have seen substantial advancements; however, they often lack transparency in their decision-making processes. In this paper, we introduce an innovative Vision-Language Model (VLM) for Face Verification, which not…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Syed Abdul Hannan , Hazim Bukhari , Thomas Cantalapiedra , Eman Ansar , Massa Baali , Rita Singh , Bhiksha Raj

The effectiveness of Intrusion Detection Systems (IDS) is critical in an era where cyber threats are becoming increasingly complex. Machine learning (ML) and deep learning (DL) models provide an efficient and accurate solution for…

Cryptography and Security · Computer Science 2024-11-27 Kiymet Kaya , Elif Ak , Sumeyye Bas , Berk Canberk , Sule Gunduz Oguducu

3D mask presentation attack detection is crucial for protecting face recognition systems against the rising threat of 3D mask attacks. While most existing methods utilize multimodal features or remote photoplethysmography (rPPG) signals to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Fangling Jiang , Qi Li , Bing Liu , Weining Wang , Caifeng Shan , Zhenan Sun , Ming-Hsuan Yang

Recent research in deep learning methodology has led to a variety of complex modelling techniques in computer vision (CV) that reach or even outperform human performance. Although these black-box deep learning models have obtained…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Anh Pham Thi Minh

Large Vision-Language Models (LVLMs) demonstrate exceptional performance across multimodal tasks, yet remain vulnerable to jailbreak attacks that bypass built-in safety mechanisms to elicit restricted content generation. Existing black-box…

Computation and Language · Computer Science 2025-06-23 Lei Jiang , Zixun Zhang , Zizhou Wang , Xiaobing Sun , Zhen Li , Liangli Zhen , Xiaohua Xu

In light of the rising demand for biometric-authentication systems, preventing face spoofing attacks is a critical issue for the safe deployment of face recognition systems. Here, we propose an efficient face presentation attack detection…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Akinori F. Ebihara , Kazuyuki Sakurai , Hitoshi Imaoka

Face anti-spoofing (FAS) has lately attracted increasing attention due to its vital role in securing face recognition systems from presentation attacks (PAs). As more and more realistic PAs with novel types spring up, traditional FAS…

Computer Vision and Pattern Recognition · Computer Science 2022-09-05 Zitong Yu , Yunxiao Qin , Xiaobai Li , Chenxu Zhao , Zhen Lei , Guoying Zhao

Biometric systems based on Machine learning and Deep learning are being extensively used as authentication mechanisms in resource-constrained environments like smartphones and other small computing devices. These AI-powered facial…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Mohit Raghavendra , Pravan Omprakash , B R Mukesh , Sowmya Kamath

Deep learning (DL) models achieve remarkable performance in classification tasks. However, models with high complexity can not be used in many risk-sensitive applications unless a comprehensible explanation is presented. Explainable…

Machine Learning · Computer Science 2023-10-24 Igor Cherepanov , David Sessler , Alex Ulmer , Hendrik Lücke-Tieke , Jörn Kohlhammer

Deep neural networks, particularly face recognition models, have been shown to be vulnerable to both digital and physical adversarial examples. However, existing adversarial examples against face recognition systems either lack…

Computer Vision and Pattern Recognition · Computer Science 2021-05-10 Bangjie Yin , Wenxuan Wang , Taiping Yao , Junfeng Guo , Zelun Kong , Shouhong Ding , Jilin Li , Cong Liu

Deep Learning has shown outstanding results in computer vision tasks; healthcare is no exception. However, there is no straightforward way to expose the decision-making process of DL models. Good accuracy is not enough for skin cancer…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Rosa Y. G. Paccotacya-Yanque , Alceu Bissoto , Sandra Avila

PAD and FFD are proposed to protect face data from physical media-based Presentation Attacks and digital editing-based DeepFakes, respectively. However, isolated training of these two models significantly increases vulnerability towards…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Ajian Liu , Haocheng Yuan , Xiao Guo , Hui Ma , Wanyi Zhuang , Changtao Miao , Yan Hong , Chuanbiao Song , Jun Lan , Qi Chu , Tao Gong , Yanyan Liang , Weiqiang Wang , Jun Wan , Xiaoming Liu , Zhen Lei

Deep learning based approaches to Computer Aided Diagnosis (CAD) typically pose the problem as an image classification (Normal or Abnormal) problem. These systems achieve high to very high accuracy in specific disease detection for which…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Aniket Joshi , Gaurav Mishra , Jayanthi Sivaswamy

Face presentation attack detection (PAD) has been extensively studied by research communities to enhance the security of face recognition systems. Although existing methods have achieved good performance on testing data with similar…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Zhi Li , Rizhao Cai , Haoliang Li , Kwok-Yan Lam , Yongjian Hu , Alex C. Kot