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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: 39th Conference on Graphics, Patterns and Images

Biometrics under attack: On provenance, trust and threat robustness

Authors: Guilherme Schardong; Tiago Novello; Luiz Silva; Nuno Gonçalves
Date: 2026
Featured in: IEEE Access

STATISTICAL ANALYSIS OF RETINAL ARTERIAL NETWORKS: Graph-Based Radiomics Framework

Authors: Ofélio Jorreia; Nuno Gonçalves, Rui Cortesão
Date: 2026
Featured in: 11th International Conference on Computer Vision & Image Processing (CVIP 2026)

MorphGuard: Morph Specific Margin Loss for Enhancing Robustness to Face...

Authors: Iurii Medvedev; Ajnas Muhammed; Nuno Gonçalves
Date: 2026
Featured in: 11th International Conference on Computer Vision & Image Processing (CVIP 2026)

Defense-in-Depth: Tamper Localization, Self-Recovery, and Attack-Type Classification for Meaningful Secret...

Authors: Ajnas Muhammed; Iurii Medvedev; Nuno Gonçalves
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

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