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Biometric authentication systems play a crucial role in modern security systems. However, maintaining the balance of privacy and integrity of stored biometrics derivative data while achieving high recognition accuracy is often challenging.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Dmytro Zakharov , Oleksandr Kuznetsov , Emanuele Frontoni

Biometric systems are vulnerable to Presentation Attacks (PA) performed using various Presentation Attack Instruments (PAIs). Even though there are numerous Presentation Attack Detection (PAD) techniques based on both deep learning and…

Computer Vision and Pattern Recognition · Computer Science 2023-06-05 Zhe Kong , Wentian Zhang , Feng Liu , Wenhan Luo , Haozhe Liu , Linlin Shen , Raghavendra Ramachandra

In the recent past, different researchers have proposed privacy-enhancing face recognition systems designed to conceal soft-biometric attributes at feature level. These works have reported impressive results, but generally did not consider…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Dailé Osorio-Roig , Christian Rathgeb , Pawel Drozdowski , Philipp Terhörst , Vitomir Štruc , Christoph Busch

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

The rapid evolution of high-end smartphones with advanced high-resolution cameras has resulted in contactless capture of fingerprint biometrics that are more reliable and suitable for verification. Similar to other biometric systems,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Hailin Li , Raghavendra Ramachandra

This work investigates the well-known problem of morphing attacks, which has drawn considerable attention in the biometrics community. Morphed images have exposed face recognition systems' susceptibility to false acceptance, resulting in…

Computer Vision and Pattern Recognition · Computer Science 2021-06-17 Poorya Aghdaie , Baaria Chaudhary , Sobhan Soleymani , Jeremy Dawson , Nasser M. Nasrabadi

Face recognition systems are designed to be robust against changes in head pose, illumination, and blurring during image capture. If a malicious person presents a face photo of the registered user, they may bypass the authentication process…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Mika Feng , Koichi Ito , Takafumi Aoki , Tetsushi Ohki , Masakatsu Nishigaki

Although biometric facial recognition systems are fast becoming part of security applications, these systems are still vulnerable to morphing attacks, in which a facial reference image can be verified as two or more separate identities. In…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Sobhan Soleymani , Baaria Chaudhary , Ali Dabouei , Jeremy Dawson , Nasser M. Nasrabadi

Due to their convenience and high accuracy, face recognition systems are widely employed in governmental and personal security applications to automatically recognise individuals. Despite recent advances, face recognition systems have shown…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Mathias Ibsen , Lázaro J. González-Soler , Christian Rathgeb , Pawel Drozdowski , Marta Gomez-Barrero , Christoph Busch

Biometrics emerged as a robust solution for security systems. However, given the dissemination of biometric applications, criminals are developing techniques to circumvent them by simulating physical or behavioral traits of legal users…

Computer Vision and Pattern Recognition · Computer Science 2018-10-12 Gustavo Botelho de Souza , João Paulo Papa , Aparecido Nilceu Marana

Biometric technologies are widely adopted in security, legal, and financial systems. Face recognition can authenticate a person based on the unique facial features such as shape and texture. However, recent works have demonstrated the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-05 Poulami Raha , Yeongnam Chae

Face recognition systems are widely deployed in high-security applications such as for biometric verification at border controls. Despite their high accuracy on pristine data, it is well-known that digital manipulations, such as face…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Mathias Ibsen , Lázaro J. González-Soler , Christian Rathgeb , Christoph Busch

In recent times, deep neural networks (DNNs) have been successfully adopted for various applications. Despite their notable achievements, it has become evident that DNNs are vulnerable to sophisticated adversarial attacks, restricting their…

Computer Vision and Pattern Recognition · Computer Science 2025-11-03 Alik Pramanick , Mayank Bansal , Utkarsh Srivastava , Suklav Ghosh , Arijit Sur

Iris recognition is widely recognized as one of the most accurate biometric modalities. However, its growing deployment in real-world applications raises significant concerns regarding its vulnerability to Presentation Attacks (PAs).…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Raghavendra Ramachandra , Sushma Venkatesh

Iris recognition systems are vulnerable to the presentation attacks, such as textured contact lenses or printed images. In this paper, we propose a lightweight framework to detect iris presentation attacks by extracting multiple…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Meiling Fang , Naser Damer , Florian Kirchbuchner , Arjan Kuijper

Face presentation attacks have become a major threat to face recognition systems and many countermeasures have been proposed in the past decade. However, most of them are devoted to 2D face presentation attacks, rather than 3D face masks.…

Computer Vision and Pattern Recognition · Computer Science 2019-03-28 Lei Li , Zhaoqiang Xia , Xiaoyue Jiang , Yupeng Ma , Fabio Roli , Xiaoyi Feng

For enterprise, personal and societal applications, there is now an increasing demand for automated authentication of identity from images using computer vision. However, current authentication technologies are still vulnerable to…

Computer Vision and Pattern Recognition · Computer Science 2019-03-22 Ayush Jaiswal , Shuai Xia , Iacopo Masi , Wael AbdAlmageed

Person re-identification (re-ID) is the task of matching person images across camera views, which plays an important role in surveillance and security applications. Inspired by great progress of deep learning, deep re-ID models began to be…

Computer Vision and Pattern Recognition · Computer Science 2019-10-28 Zhibo Wang , Siyan Zheng , Mengkai Song , Qian Wang , Alireza Rahimpour , Hairong Qi

The adoption of large-scale iris recognition systems around the world has brought to light the importance of detecting presentation attack images (textured contact lenses and printouts). This work presents a new approach in iris…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Andrey Kuehlkamp , Allan Pinto , Anderson Rocha , Kevin Bowyer , Adam Czajka

As the popularity of iris recognition systems increases, the importance of effective security measures against presentation attacks becomes paramount. This work presents an overview of the most important advances in the area of iris…

Computer Vision and Pattern Recognition · Computer Science 2020-07-20 Aidan Boyd , Zhaoyuan Fang , Adam Czajka , Kevin W. Bowyer