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In recent years, the popularity of fingerprint-based biometric authentication systems significantly increased. However, together with many advantages, biometric systems are still vulnerable to presentation attacks (PAs). In particular, this…

Computer Vision and Pattern Recognition · Computer Science 2021-01-25 Jascha Kolberg , Marcel Grimmer , Marta Gomez-Barrero , Christoph Busch

Recent studies have revealed the vulnerability of face recognition models against physical adversarial patches, which raises security concerns about the deployed face recognition systems. However, it is still challenging to ensure the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-11 Xiao Yang , Yinpeng Dong , Tianyu Pang , Zihao Xiao , Hang Su , Jun Zhu

Face recognition systems are increasingly deployed across a wide range of applications, including smartphone authentication, access control, and border security. However, these systems remain vulnerable to presentation attacks (PAs), which…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Manasa , Sushrut Patwardhan , Narayan Vetrekar , Pavan Kumar , R. S. Gad , Raghavendra Ramachandra

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

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

Real-time face orientation recognition is a cutting-edge technology meant to track and analyze facial movements in virtual environments such as online interviews, remote meetings, and virtual classrooms. As the demand for virtual…

Human-Computer Interaction · Computer Science 2025-06-12 Tanjil Hasan Sakib , Samia Jahan Mojumder , Rajan Das Gupta , Md Imrul Hasan Showmick , Md. Yeasin Rahat , Md. Jakir Hossen

Photorealistic talking-head avatars are becoming increasingly common in virtual meetings, gaming, and social platforms. These avatars allow for more immersive communication, but they also introduce serious security risks. One emerging…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Laura Pedrouzo-Rodriguez , Pedro Delgado-DeRobles , Luis F. Gomez , Ruben Tolosana , Ruben Vera-Rodriguez , Aythami Morales , Julian Fierrez

This paper presents an automated system for human face recognition in a real time background world for a large homemade dataset of persons face. The task is very difficult as the real time background subtraction in an image is still a…

Computer Vision and Pattern Recognition · Computer Science 2011-08-08 K. Susheel Kumar , Vijay Bhaskar Semwal , R C Tripathi

Recent advancements in deep learning have revolutionized technology and security measures, necessitating robust identification methods. Biometric approaches, leveraging personalized characteristics, offer a promising solution. However, Face…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Iurii Medvedev , Nuno Gonçalves

Purpose of the research: In the biometric community, visible human characteristics are popular and viable for verification and identification on mobile devices. However, imposters are able to spoof such characteristics by creating fake and…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Jalil Nourmohammadi Khiarak

This work explores facial expression bias as a security vulnerability of face recognition systems. Despite the great performance achieved by state-of-the-art face recognition systems, the algorithms are still sensitive to a large range of…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Alejandro Peña , Ignacio Serna , Aythami Morales , Julian Fierrez , Agata Lapedriza

Biometric systems are nowadays employed across a broad range of applications. They provide high security and efficiency and, in many cases, are user friendly. Despite these and other advantages, biometric systems in general and Automatic…

In the rapidly evolving landscape of digital security, biometric authentication systems, particularly facial recognition, have emerged as integral components of various security protocols. However, the reliability of these systems is…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Oleksandr Kuznetsov , Emanuele Frontoni , Luca Romeo , Riccardo Rosati , Andrea Maranesi , Alessandro Muscatello

Face anti-spoofing algorithms play a pivotal role in the robust deployment of face recognition systems against presentation attacks. Conventionally, full facial images are required by such systems to correctly authenticate individuals, but…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Vaibhav Sundharam , Abhijit Sarkar , A. Lynn Abbott

A large number of deep neural network based techniques have been developed to address the challenging problem of face presentation attack detection (PAD). Whereas such techniques' focus has been on improving PAD performance in terms of…

Computer Vision and Pattern Recognition · Computer Science 2021-11-11 Hengameh Mirzaalian , Mohamed E. Hussein , Leonidas Spinoulas , Jonathan May , Wael Abd-Almageed

We have witnessed rapid advances in both face presentation attack models and presentation attack detection (PAD) in recent years. Compared to widely studied 2D face presentation attacks (e.g. printed photos and video replays), 3D face…

Computer Vision and Pattern Recognition · Computer Science 2019-10-15 Shan Jia , Xin Li , Chuanbo Hu , Zhengquan Xu

Facial motion capture in mixed reality headsets enables real-time avatar animation, allowing users to convey non-verbal cues during virtual interactions. However, as facial motion data constitutes a behavioral biometric, its use raises…

Cryptography and Security · Computer Science 2025-07-16 Adriano Castro , Simon Hanisch , Matin Fallahi , Thorsten Strufe

Maliciously-manipulated images or videos - so-called deep fakes - especially face-swap images and videos have attracted more and more malicious attackers to discredit some key figures. Previous pixel-level artifacts based detection…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Weinan Guan , Wei Wang , Jing Dong , Bo Peng , Tieniu Tan

Face recognition from image or video is a popular topic in biometrics research. Many public places usually have surveillance cameras for video capture and these cameras have their significant value for security purpose. It is widely…

Computer Vision and Pattern Recognition · Computer Science 2013-02-27 Faizan Ahmad , Aaima Najam , Zeeshan Ahmed

Face signatures, including size, shape, texture, skin tone, eye color, appearance, and scars/marks, are widely used as discriminative, biometric information for access control. Despite recent advancements in facial recognition systems,…

Computer Vision and Pattern Recognition · Computer Science 2021-11-05 Jennifer Hamblin , Kshitij Nikhal , Benjamin S. Riggan