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Related papers: Multimodal Models Meet Presentation Attack Detecti…

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Typographic attacks exploit the interplay between text and visual content in multimodal foundation models, causing misclassifications when misleading text is embedded within images. Existing datasets are limited in size and diversity,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Justus Westerhoff , Erblina Purelku , Jakob Hackstein , Jonas Loos , Leo Pinetzki , Erik Rodner , Lorenz Hufe

Face anti-spoofing is essential to prevent false facial verification by using a photo, video, mask, or a different substitute for an authorized person's face. Most of the state-of-the-art presentation attack detection (PAD) systems suffer…

Computer Vision and Pattern Recognition · Computer Science 2021-09-10 Alperen Kantarcı , Hasan Dertli , Hazım Kemal Ekenel

Although face recognition systems have seen a massive performance enhancement in recent years, they are still targeted by threats such as presentation attacks, leading to the need for generalizable presentation attack detection (PAD)…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Guray Ozgur , Eduarda Caldeira , Tahar Chettaoui , Fadi Boutros , Raghavendra Ramachandra , Naser Damer

The vulnerabilities of fingerprint authentication systems have raised security concerns when adapting them to highly secure access-control applications. Therefore, Fingerprint Presentation Attack Detection (FPAD) methods are essential for…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Hailin Li , Raghavendra Ramachandra

Face Presentation Attack Detection (PAD) plays a pivotal role in securing face recognition systems against spoofing attacks. Although great progress has been made in designing face PAD methods, developing a model that can generalize well to…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Usman Muhammad , Jorma Laaksonen , Djamila Romaissa Beddiar , Mourad Oussalah

Face recognition has achieved unprecedented results, surpassing human capabilities in certain scenarios. However, these automatic solutions are not ready for production because they can be easily fooled by simple identity impersonation…

Computer Vision and Pattern Recognition · Computer Science 2019-04-18 Daniel Pérez-Cabo , David Jiménez-Cabello , Artur Costa-Pazo , Roberto J. López-Sastre

This paper proposes a method for utilizing thermal features of the hand for the purpose of presentation attack detection (PAD) that can be employed in a hand biometrics system's pipeline. By envisaging two different operational modes of our…

Computer Vision and Pattern Recognition · Computer Science 2018-09-13 Ewelina Bartuzi , Mateusz Trokielewicz

The use of biometrics to authenticate users and control access to secure areas has become extremely popular in recent years, and biometric access control systems are frequently used by both governments and private corporations. However,…

Cryptography and Security · Computer Science 2023-12-04 Justin Spencer , Deborah Lawrence , Prosenjit Chatterjee , Kaushik Roy , Albert Esterline , Jung-Hee Kim

Face Presentation Attack Detection (PAD) is an important measure to prevent spoof attacks for face biometric systems. Many works based on Convolution Neural Networks (CNNs) for face PAD formulate the problem as an image-level binary…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Zuheng Ming , Zitong Yu , Musab Al-Ghadi , Muriel Visani , Muhammad MuzzamilLuqman , Jean-Christophe Burie

The accurate detection of ID card Presentation Attacks (PA) is becoming increasingly important due to the rising number of online/remote services that require the presentation of digital photographs of ID cards for digital onboarding or…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Reuben Markham , Juan M. Espin , Mario Nieto-Hidalgo , Juan E. Tapia

Nowadays, the development of a Presentation Attack Detection (PAD) system for ID cards presents a challenge due to the lack of images available to train a robust PAD system and the increase in diversity of possible attack instrument…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Qingwen Zeng , Juan E. Tapia , Izan Garcia , Juan M. Espin , Christoph Busch

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

Recently, the newly emerged multimodal models, which leverage both visual and linguistic modalities to train powerful encoders, have gained increasing attention. However, learning from a large-scale unlabeled dataset also exposes the model…

Cryptography and Security · Computer Science 2023-06-06 Ziqing Yang , Xinlei He , Zheng Li , Michael Backes , Mathias Humbert , Pascal Berrang , Yang Zhang

The non-intrusive nature and high accuracy of face recognition algorithms have led to their successful deployment across multiple applications ranging from border access to mobile unlocking and digital payments. However, their vulnerability…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Nilay Sanghvi , Sushant Kumar Singh , Akshay Agarwal , Mayank Vatsa , Richa Singh

Smartphone-based contactless fingerphoto authentication has become a reliable alternative to traditional contact-based fingerprint biometric systems owing to rapid advances in smartphone camera technology. Despite its convenience,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Hailin Li , Raghavendra Ramachandra , Mohamed Ragab , Soumik Mondal , Yong Kiam Tan , Khin Mi Mi Aung

A face morphing attack image can be verified to multiple identities, making this attack a major vulnerability to processes based on identity verification, such as border checks. Various methods have been proposed to detect face morphing…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Naser Damer , Noemie Spiller , Meiling Fang , Fadi Boutros , Florian Kirchbuchner , Arjan Kuijper

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

Iris-based biometric systems are vulnerable to presentation attacks (PAs), where adversaries present physical artifacts (e.g., printed iris images, textured contact lenses) to defeat the system. This has led to the development of various…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Debasmita Pal , Redwan Sony , Arun Ross

Face anti-spoofing (FAS) is crucial for protecting facial recognition systems from presentation attacks. Previous methods approached this task as a classification problem, lacking interpretability and reasoning behind the predicted results.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Hongyang Wang , Yichen Shi , Zhuofu Tao , Yuhao Gao , Liepiao Zhang , Xun Lin , Jun Feng , Xiaochen Yuan , Zitong Yu , Xiaochun Cao

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