212 citations · 2k across the 86 of their papers we have counts for
101 papers
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…
Estudio de la Experiencia de Usuario mediante un Sistema de Dashboards de Análisis de Aprendizaje Multimodal
Álvaro Becerra, Roberto Daza, Ruth Cobos +2
In the article, we present a Web-based System called M2LADS, which supports the integration and visualization of multimodal data recorded in user experiences (UX) in a Learning Ana…
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…
Document Layout Annotation: Database and Benchmark in the Domain of Public Affairs
Alejandro Peña, Aythami Morales, Julian Fierrez +5
Every day, thousands of digital documents are generated with useful information for companies, public organizations, and citizens. Given the impossibility of processing them manual…
Leveraging Large Language Models for Topic Classification in the Domain of Public Affairs
Alejandro Peña, Aythami Morales, Julian Fierrez +5
The analysis of public affairs documents is crucial for citizens as it promotes transparency, accountability, and informed decision-making. It allows citizens to understand governm…
Measuring Bias in AI Models: An Statistical Approach Introducing N-Sigma
Daniel DeAlcala, Ignacio Serna, Aythami Morales +2
The new regulatory framework proposal on Artificial Intelligence (AI) published by the European Commission establishes a new risk-based legal approach. The proposal highlights the…
M2LADS: A System for Generating MultiModal Learning Analytics Dashboards in Open Education
Álvaro Becerra, Roberto Daza, Ruth Cobos +3
In this article, we present a Web-based System called M2LADS, which supports the integration and visualization of multimodal data recorded in learning sessions in a MOOC in the for…
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 Attack Detection in Fingerprint Biometrics
Javier Galbally, Julian Fierrez, Raffaele Cappelli +1
This chapter provides an introduction to Presentation Attack Detection (PAD) in fingerprint biometrics, also coined anti-spoofing, describes early developments in this field, and b…
OTB-morph: One-Time Biometrics via Morphing
Mahdi Ghafourian, Julian Fierrez, Ruben Vera-Rodriguez +2
Cancelable biometrics are a group of techniques to transform the input biometric to an irreversible feature intentionally using a transformation function and usually a key in order…
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…
Human-Centric Multimodal Machine Learning: Recent Advances and Testbed on AI-based Recruitment
Alejandro Peña, Ignacio Serna, Aythami Morales +5
The presence of decision-making algorithms in society is rapidly increasing nowadays, while concerns about their transparency and the possibility of these algorithms becoming new s…
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…
Secure access system using signature verification over tablet PC
Fernando Alonso-Fernandez, Julian Fierrez-Aguilar, Javier Ortega-Garcia +1
Low-cost portable devices capable of capturing signature signals are being increasingly used. Additionally, the social and legal acceptance of the written signature for authenticat…
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…
edBB-Demo: Biometrics and Behavior Analysis for Online Educational Platforms
Roberto Daza, Aythami Morales, Ruben Tolosana +3
We present edBB-Demo, a demonstrator of an AI-powered research platform for student monitoring in remote education. The edBB platform aims to study the challenges associated to use…
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…