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Discover all publications from VIS TEAM, showcasing our research in visual information security.

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Date: 2026
Featured in: IET Biometrics Volume 2026, Issue 1

Towards Secure Biometric Solutions: A Multifactor Authentication Framework for Facial...

Authors: José Silva; Ajnas Muhammed; Aniana Cruz; Bruno Sousa; Nuno Gonçalves
Date: 2025
Featured in: 2025 IEEE International Joint Conference on Biometrics

Second Competition on Presentation Attack Detection on ID Card

Authors: Juan E Tapia; Mario Nieto; Juan M Espin; Alvaro S Rocamora; Javier Barrachina; Naser Damer; Christoph Busch; Marija Ivanovska; Leon Todorov; Renat Khizbullin; Lazar Lazarevich; Aleksei Grishin; Daniel Schulz; Sebastian Gonzalez; Amir Mohammadi; Ketan Kotwal; Sebastien Marcel; Raghavendra Mudgalgundurao; Kiran Raja; Patrick Schuch; Sushrut Patwardhan; Raghavendra Ramachandra; Pedro Couto Pereira; Joao Ribeiro Pinto; Mariana Xavier; Andrés Valenzuela; Rodrigo Lara; Borut Batagelj; Marko Peterlin; Peter Peer; Ajnas Muhammed; Diogo Nunes; Nuno Gonçalves
Date: 2026
Featured in: Submited to: ArXiv

DFIC: Towards a balanced facial image dataset for automatic ICAO...

Authors: Nuno Gonçalves; Diogo Nunes; Carla Guerra; João Marcos
Date: 2026
Featured in: IEEE Access

DocSafe: Toward Practical Print-Proof Image Steganography via Frequency Decomposition and...

Authors: Farhad Shadmand, Iurii Medvedev, Luiz Schirmer, Nuno Gonçalves
Date: 2026
Featured in: Advances in Neural Information Processing Systems 2026

FLOWING: Implicit Neural Flows for Structure-Preserving Morphing

Authors: Arthur Bizzi; Matias Grynberg Portnoy; Vitor Pereira Matias; Daniel Perazzo; João Paulo Silva do Monte Lima; Luiz Velho; Nuno Gonçalves; João Pereira; Guilherme Schardong; Tiago Novello
Date: 2026
Featured in: Journal on Image and Video Processing 2026

A new dataset and pipeline for ICAO compliance check of...

Authors: Carla Guerra; Diogo Nunes; David Carreira; João Marcos; Nuno Gonçalves
Date: 2026
Featured in: Submited to: International Joint Conference on Biometrics 2026

From Noise to Meaning: Meaningful Secret Sharing with Tamper Detection...

Authors: Ajnas Muhammed; Iurii Medvedev; Nuno Gonçalves
Date: 2026
Featured in: Accepted for NeurIPS2026

M-plicits: Neural Implicit Surfaces via Nested Multiscale Residuals

Authors: Vinícius da Silva; Isabelle Melo; Matheus Bessa; Guilherme Schardong; Luiz Schirmer,;André Araújo; Nuno Gonçalves; Hélio Lopes; Alberto Raposo; Luiz Velho; Tiago Novello
Date: 2026
Featured in: Pattern Analysis and Applications

Towards Federated Learning for Face Recognition: a Comprehensive Review of...

Authors: Ajnas Muhammed; João Marcos; Nuno Gonçalves
Date: 2026
Featured in: 14th International Workshop on Biometrics and Forensics

Feature-based Identity Unlearning Evaluation for Biometric Applications

Authors: Iurii Medvedev; Ajnas Muhammed; Nuno Gonçalves

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Institute of Systems and Robotics Department of Electrical and Computers Engineering University of Coimbra