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Face masks have become one of the main methods for reducing the transmission of COVID-19. This makes face recognition (FR) a challenging task because masks hide several discriminative features of faces. Moreover, face presentation attack…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Meiling Fang , Naser Damer , Florian Kirchbuchner , Arjan Kuijper

Biometric systems based on iris recognition are currently being used in border control applications and mobile devices. However, research in iris recognition is stymied by various factors such as limited datasets of bonafide irides and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Shivangi Yadav , Arun Ross

We present the second edition of OpenEDS dataset, OpenEDS2020, a novel dataset of eye-image sequences captured at a frame rate of 100 Hz under controlled illumination, using a virtual-reality head-mounted display mounted with two…

Computer Vision and Pattern Recognition · Computer Science 2020-05-11 Cristina Palmero , Abhishek Sharma , Karsten Behrendt , Kapil Krishnakumar , Oleg V. Komogortsev , Sachin S. Talathi

We study the problem of fingerprint presentation attack detection (PAD) under unknown PA materials not seen during PAD training. A dataset of 5,743 bonafide and 4,912 PA images of 12 different materials is used to evaluate a…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Tarang Chugh , Anil K. Jain

Automatic fingerprint recognition systems are the most extensively used systems for person authentication although they are vulnerable to Presentation attacks. Artificial artifacts created with the help of various materials are used to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-03 Anuj Rai , Somnath Dey , Pradeep Patidar , Prakhar Rai

Face presentation attack detection (PAD) is an essential measure to protect face recognition systems from being spoofed by malicious users and has attracted great attention from both academia and industry. Although most of the existing…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Zhi Li , Haoliang Li , Xin Luo , Yongjian Hu , Kwok-Yan Lam , Alex C. Kot

Due to the diversity of attack materials, fingerprint recognition systems (AFRSs) are vulnerable to malicious attacks. It is thus important to propose effective fingerprint presentation attack detection (PAD) methods for the safety and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Feng Liu , Zhe Kong , Haozhe Liu , Wentian Zhang , Linlin Shen

This paper presents a texture aware end-to-end trainable iris recognition system, specifically designed for datasets like iris having limited training data. We build upon our previous stagewise learning framework with certain key…

Computer Vision and Pattern Recognition · Computer Science 2022-02-16 Manashi Chakraborty , Aritri Chakraborty , Prabir Kumar Biswas , Pabitra Mitra

This paper presents a summary of the Competition on Face Presentation Attack Detection Based on Privacy-aware Synthetic Training Data (SynFacePAD 2023) held at the 2023 International Joint Conference on Biometrics (IJCB 2023). The…

Open-set recognition and adversarial defense study two key aspects of deep learning that are vital for real-world deployment. The objective of open-set recognition is to identify samples from open-set classes during testing, while…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Rui Shao , Pramuditha Perera , Pong C. Yuen , Vishal M. Patel

Post-mortem iris recognition brings both hope to the forensic community (a short-term but accurate and fast means of verifying identity) as well as concerns to society (its potential illicit use in post-mortem impersonation). These hopes…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Rasel Ahmed Bhuiyan , Parisa Farmanifard , Renu Sharma , Andrey Kuehlkamp , Aidan Boyd , Patrick J Flynn , Kevin W Bowyer , Arun Ross , Dennis Chute , Adam Czajka

The widespread deployment of face recognition-based biometric systems has made face Presentation Attack Detection (face anti-spoofing) an increasingly critical issue. This survey thoroughly investigates the face Presentation Attack…

Computer Vision and Pattern Recognition · Computer Science 2020-10-09 Zuheng Ming , Muriel Visani , Muhammad Muzzamil Luqman , Jean-Christophe Burie

In the current landscape of biometrics and surveillance, the ability to accurately recognize faces in uncontrolled settings is paramount. The Watchlist Challenge addresses this critical need by focusing on face detection and open-set…

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

A practical eye authentication (EA) system targeted for edge devices needs to perform authentication and be robust to presentation attacks, all while remaining compute and latency efficient. However, existing eye-based frameworks a) perform…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Prithviraj Dhar , Amit Kumar , Kirsten Kaplan , Khushi Gupta , Rakesh Ranjan , Rama Chellappa

Out-of-distribution (OOD) detection is the problem of identifying inputs which are unrelated to the in-distribution task. The OOD detection performance when the in-distribution (ID) is ImageNet-1K is commonly being tested on a small range…

Machine Learning · Computer Science 2023-06-02 Julian Bitterwolf , Maximilian Müller , Matthias Hein

Traditional semi-supervised object detection methods assume a fixed set of object classes (in-distribution or ID classes) during training and deployment, which limits performance in real-world scenarios where unseen classes…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Garvita Allabadi , Ana Lucic , Siddarth Aananth , Tiffany Yang , Yu-Xiong Wang , Vikram Adve

Biometric recognition has primarily addressed closed-set identification, assuming all probe subjects are in the gallery. However, most practical applications involve open-set biometrics, where probe subjects may or may not be present in the…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Yiyang Su , Minchul Kim , Feng Liu , Anil Jain , Xiaoming Liu

Out-of-distribution detection is an important component of reliable ML systems. Prior literature has proposed various methods (e.g., MSP (Hendrycks & Gimpel, 2017), ODIN (Liang et al., 2018), Mahalanobis (Lee et al., 2018)), claiming they…

Machine Learning · Computer Science 2021-09-14 Fahim Tajwar , Ananya Kumar , Sang Michael Xie , Percy Liang

State-of-the-art Object Detection (OD) methods predominantly operate under a closed-world assumption, where test-time categories match those encountered during training. However, detecting and localizing unknown objects is crucial for…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Daniel Montoya , Aymen Bouguerra , Alexandra Gomez-Villa , Fabio Arnez
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