212 citations · 2k across the 86 of their papers we have counts for
73 papers · 1 filter
Forensic Twins: Self-Supervised Residual Learning for AI-Generated Image Forensics
Javier Muñoz-Haro, Ruben Tolosana, Ruben Vera-Rodriguez +2
Detectors of AI-generated images are typically trained using samples from all Generative AI architectures they must catch, and struggle as soon as a new architecture emerges. Recen…
PAD-Phys: Exploiting Physiology for Presentation Attack Detection in Face Biometrics
Luis F. Gomez, Julian Fierrez, Aythami Morales +5
Presentation Attack Detection (PAD) is a crucial stage in facial recognition systems to avoid leakage of personal information or spoofing of identity to entities. Recently, pulse d…
LivDet2023 -- Fingerprint Liveness Detection Competition: Advancing Generalization
Marco Micheletto, Roberto Casula, Giulia Orrù +5
The International Fingerprint Liveness Detection Competition (LivDet) is a biennial event that invites academic and industry participants to prove their advancements in Fingerprint…
AI4Food-NutritionFW: A Novel Framework for the Automatic Synthesis and Analysis of Eating Behaviours
Sergio Romero-Tapiador, Ruben Tolosana, Aythami Morales +7
Nowadays millions of images are shared on social media and web platforms. In particular, many of them are food images taken from a smartphone over time, providing information relat…
mEBAL2 Database and Benchmark: Image-based Multispectral Eyeblink Detection
Roberto Daza, Aythami Morales, Julian Fierrez +2
This work introduces a new multispectral database and novel approaches for eyeblink detection in RGB and Near-Infrared (NIR) individual images. Our contributed dataset (mEBAL2, mul…
Exploring Transformers for On-Line Handwritten Signature Verification
Pietro Melzi, Ruben Tolosana, Ruben Vera-Rodriguez +4
The application of mobile biometrics as a user-friendly authentication method has increased in the last years. Recent studies have proposed novel behavioral biometric recognition s…
Synthetic Data for Face Recognition: Current State and Future Prospects
Fadi Boutros, Vitomir Struc, Julian Fierrez +1
Over the past years, deep learning capabilities and the availability of large-scale training datasets advanced rapidly, leading to breakthroughs in face recognition accuracy. Howev…
Introduction to Presentation Attacks in Signature Biometrics and Recent Advances
Carlos Gonzalez-Garcia, Ruben Tolosana, Ruben Vera-Rodriguez +2
Applications based on biometric authentication have received a lot of interest in the last years due to the breathtaking results obtained using personal traits such as face or fing…
Toward Face Biometric De-identification using Adversarial Examples
Mahdi Ghafourian, Julian Fierrez, Luis Felipe Gomez +4
The remarkable success of face recognition (FR) has endangered the privacy of internet users particularly in social media. Recently, researchers turned to use adversarial examples…
Blockchain and Biometrics: Survey, GDPR Analysis, and Future Directions
Mahdi Ghafourian, Bilgesu Sumer, Ruben Vera-Rodriguez +4
Biometric recognition as an efficient and hard-to-forge way of identification and verification has become an indispensable part of the current digital world. The fast evolution of…
MATT: Multimodal Attention Level Estimation for e-learning Platforms
Roberto Daza, Luis F. Gomez, Aythami Morales +4
This work presents a new multimodal system for remote attention level estimation based on multimodal face analysis. Our multimodal approach uses different parameters and signals ob…
Evaluation of direct attacks to fingerprint verification systems
J. Galbally, J. Fierrez, F. Alonso-Fernandez +1
The vulnerabilities of fingerprint-based recognition systems to direct attacks with and without the cooperation of the user are studied. Two different systems, one minutiae-based a…
Combining multiple matchers for fingerprint verification: A case study in biosecure network of excellence
Fernando Alonso-Fernandez, Julian Fierrez-Aguilar, Hartwig Fronthaler +4
We report on experiments for the fingerprint modality conducted during the First BioSecure Residential Workshop. Two reference systems for fingerprint verification have been tested…
Periocular Biometrics: A Modality for Unconstrained Scenarios
Fernando Alonso-Fernandez, Josef Bigun, Julian Fierrez +3
Periocular refers to the externally visible region of the face that surrounds the eye socket. This feature-rich area can provide accurate identification in unconstrained or uncoope…
Leveraging Automatic Personalised Nutrition: Food Image Recognition Benchmark and Dataset based on Nutrition Taxonomy
Sergio Romero-Tapiador, Ruben Tolosana, Aythami Morales +7
Maintaining a healthy lifestyle has become increasingly challenging in today's sedentary society marked by poor eating habits. To address this issue, both national and internationa…
Facial Soft Biometrics for Recognition in the Wild: Recent Works, Annotation, and COTS Evaluation
Ester Gonzalez-Sosa, Julian Fierrez, Ruben Vera-Rodriguez +1
The role of soft biometrics to enhance person recognition systems in unconstrained scenarios has not been extensively studied. Here, we explore the utility of the following modalit…
Sensor interoperability and fusion in signature verification: A case study using tablet PC
Fernando Alonso-Fernandez, Julian Fierrez-Aguilar, Javier Ortega-Garcia
Several works related to information fusion for signature verification have been presented. However, few works have focused on sensor fusion and sensor interoperability. In this pa…
On-line signature verification using Tablet PC
Fernando Alonso-Fernandez, Julian Fierrez-Aguilar, Francisco del-Valle +1
On-line signature verification for Tablet PC devices is studied. The on-line signature verification algorithm presented by the authors at the First International Signature Verifica…
IJCB 2022 Mobile Behavioral Biometrics Competition (MobileB2C)
Giuseppe Stragapede, Ruben Vera-Rodriguez, Ruben Tolosana +11
This paper describes the experimental framework and results of the IJCB 2022 Mobile Behavioral Biometrics Competition (MobileB2C). The aim of MobileB2C is benchmarking mobile user…
A review of schemes for fingerprint image quality computation
Fernando Alonso-Fernandez, Julian Fierrez-Aguilar, Javier Ortega-Garcia
Fingerprint image quality affects heavily the performance of fingerprint recognition systems. This paper reviews existing approaches for fingerprint image quality computation. We a…
On the Effects of Image Quality Degradation on Minutiae- and Ridge-Based Automatic Fingerprint Recognition
Julian Fierrez-Aguilar, Luis-Miguel Muñoz-Serrano, Fernando Alonso-Fernandez +1
The effect of image quality degradation on the verification performance of automatic fingerprint recognition is investigated. We study the performance of two fingerprint matchers b…
On the vulnerability of fingerprint verification systems to fake fingerprint attacks
Javier Galbally, Julian Fierrez-Aguilar, Joaquin Rodriguez-Gonzalez +3
A new method to generate gummy fingers is presented. A medium-size fake fingerprint database is described and two different fingerprint verification systems are evaluated on it. Th…
Fingerprint Liveness Detection Based on Quality Measures
Javier Galbally, Fernando Alonso-Fernandez, Julian Fierrez +1
A new fingerprint parameterization for liveness detection based on quality measures is presented. The novel feature set is used in a complete liveness detection system and tested o…
Biometric Signature Verification Using Recurrent Neural Networks
Ruben Tolosana, Ruben Vera-Rodriguez, Julian Fierrez +1
Architectures based on Recurrent Neural Networks (RNNs) have been successfully applied to many different tasks such as speech or handwriting recognition with state-of-the-art resul…