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The use of iris as a biometric trait is widely used because of its high level of distinction and uniqueness. Nowadays, one of the major research challenges relies on the recognition of iris images obtained in visible spectrum under…

Computer Vision and Pattern Recognition · Computer Science 2019-01-21 Luiz A. Zanlorensi , Eduardo Luz , Rayson Laroca , Alceu S. Britto , Luiz S. Oliveira , David Menotti

Face anti-spoofing is critical to prevent face recognition systems from a security breach. The biometrics community has %possessed achieved impressive progress recently due the excellent performance of deep neural networks and the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-24 Ajian Liu , Xuan Li , Jun Wan , Sergio Escalera , Hugo Jair Escalante , Meysam Madadi , Yi Jin , Zhuoyuan Wu , Xiaogang Yu , Zichang Tan , Qi Yuan , Ruikun Yang , Benjia Zhou , Guodong Guo , Stan Z. Li

Iris recognition is considered as one of the best biometric methods used for human identification and verification, this is because of its unique features that differ from one person to another, and its importance in the security field.…

Computer Vision and Pattern Recognition · Computer Science 2011-11-08 M. Y. Shams , M. Z. Rashad , O. Nomir , R. M. El-Awady

Presentation attacks are posing major challenges to most of the biometric modalities. Iris recognition, which is considered as one of the most accurate biometric modality for person identification, has also been shown to be vulnerable to…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Mehak Gupta , Vishal Singh , Akshay Agarwal , Mayank Vatsa , Richa Singh

Iris recognition is a secure biometric technology known for its stability and privacy. With no two irises being identical and little change throughout a person's lifetime, iris recognition is considered more reliable and less susceptible to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-16 Yimin Yin , Siliang He , Renye Zhang , Hongli Chang , Xu Han , Jinghua Zhang

Contactless fingerprint recognition offers a higher level of user comfort and addresses hygiene concerns more effectively. However, it is also more vulnerable to presentation attacks such as photo paper, paper-printout, and various display…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Banafsheh Adami , Nima Karimian

Iris recognition has emerged as one of the most accurate and convenient biometric for the human identification and has been increasingly employed in a wide range of e-security applications. The quality of iris images acquired at-a-distance…

Computer Vision and Pattern Recognition · Computer Science 2020-01-07 Kuo Wang , Ajay Kumar

Facial biometrics has been recently received tremendous attention as a convenient replacement for traditional authentication systems. Consequently, detecting malicious attempts has found great significance, leading to extensive studies in…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Arian Sabaghi , Marzieh Oghbaie , Kooshan Hashemifard , Mohammad Akbari

A spoof attack, a subset of presentation attacks, is the use of an artificial replica of a biometric in an attempt to circumvent a biometric sensor. Liveness detection, or presentation attack detection, distinguishes between live and fake…

Computer Vision and Pattern Recognition · Computer Science 2016-09-07 Luca Ghiani , David A. Yambay , Valerio Mura , Gian Luca Marcialis , Fabio Roli , Stephanie A. Schuckers

Fingerprint-based biometric systems have experienced a large development in the last years. Despite their many advantages, they are still vulnerable to presentation attacks (PAs). Therefore, the task of determining whether a sample stems…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Lázaro J. González-Soler , Marta Gomez-Barrero , Leonardo Chang , Airel Pérez-Suárez , Christoph Busch

Face recognition is a widely used biometric approach. Face recognition technology has developed rapidly in recent years and it is more direct, user friendly and convenient compared to other methods. But face recognition systems are…

Computer Vision and Pattern Recognition · Computer Science 2014-05-12 Saptarshi Chakraborty , Dhrubajyoti Das

Touch-based fingerprint biometrics is one of the most popular biometric modalities with applications in several fields. Problems associated with touch-based techniques such as the presence of latent fingerprints and hygiene issues due to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Sandip Purnapatra , Conor Miller-Lynch , Stephen Miner , Yu Liu , Keivan Bahmani , Soumyabrata Dey , Stephanie Schuckers

The main scope of this chapter is to serve as an introduction to face presentation attack detection, including key resources and advances in the field in the last few years. The next pages present the different presentation attacks that a…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Javier Hernandez-Ortega , Julian Fierrez , Aythami Morales , Javier Galbally

This paper proposes two new open-source iris recognition algorithms, providing both Python and IREX-compliant C++ implementations to be submitted to the official IREX X program. This work has two primary goals: (a) to conduct the first-ever…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Siamul Karim Khan , Patrick J. Flynn , Adam Czajka

Recent developments in hardware, computer graphics, and AI may soon enable AR/VR head-mounted displays (HMDs) to become everyday devices like smartphones and tablets. Eye trackers within HMDs provide a special opportunity for such setups as…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Mengdi Wang , Efe Bozkir , Enkelejda Kasneci

This paper proposes an end-to-end iris recognition method designed specifically for post-mortem samples, and thus serving as a perfect application for iris biometrics in forensics. To our knowledge, it is the first method specific for…

Computer Vision and Pattern Recognition · Computer Science 2019-12-06 Mateusz Trokielewicz , Adam Czajka , Piotr Maciejewicz

An iris biometric system can be compromised by presentation attacks (PAs) where artifacts such as artificial eyes, printed eye images, or cosmetic contact lenses are presented to the system. To counteract this, several presentation attack…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Shivangi Yadav , Arun Ross

Iris recognition, a relatively new biometric technology, has great advantages, such as variability, stability and security, thus is the most promising for high security environment. Iris recognition is proposed in this report. We describe…

Computer Vision and Pattern Recognition · Computer Science 2013-03-05 Belhassen Akrout , Imen Khanfir Kallel , Chokri Ben Amar

Research in presentation attack detection (PAD) for iris recognition has largely moved beyond evaluation in "closed-set" scenarios, to emphasize ability to generalize to presentation attack types not present in the training data. This paper…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Aidan Boyd , Jeremy Speth , Lucas Parzianello , Kevin Bowyer , Adam Czajka

Spoofing attacks are a threat to modern face recognition systems. In this work we present a simple yet effective liveness detection approach to enhance 2D face recognition methods and make them robust against spoofing attacks. We show that…

Computer Vision and Pattern Recognition · Computer Science 2018-04-20 J. Matias Di Martino , Qiang Qiu , Trishul Nagenalli , Guillermo Sapiro