Forefront of Combating Visual Information Threats and Enhancing Security

We research and develop cutting-edge strategies to protect visual information, focusing on biometrics and innovative security technologies. 

About us
Our projects

Shaping the Future of Visual Security

 we focus on developing and refining technologies to secure visual information, from biometrics to state-of-the-art security features.

About us
Our Research
partners and collaborators
INSTITUTIONS
partners and collaborators
INSTITUTIONS

VISUAL INFORMATION
SECURITY TEAM

VIS TEAM is a research nucleus focused on the security of visual information, spanning from biometrics, to cutting-edge security elements of sovereign documents or security stamps. VIS TEAM works on both sides of the security: on the detection of fraud and attacks, by one side, and on the protection of the visual content on the other side.

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most recent news

All news
Dissemination
9 de December, 2019

“UniQode” permite leitura e validação da autenticidade da marca através de dispositivo móvel

Read Article
Dissemination
9 de December, 2019

“UniQode” permite leitura e validação da autenticidade da marca através de dispositivo móvel

Read Article
News: Dissemination
Nuno Gonçalves presents seminar at the...
April 11, 2025
News: Results and Achievements
Nuno receives three awards from NEEEC/AAC
April 7, 2025
News: Others
Announcement of (8) Research Grants
March 17, 2025
News: Results and Achievements
Best Paper Award @ICPRAM 2025
February 26, 2025
News: Scientific Events
Nuno Gonçalves serves as jury member...
February 19, 2025
News: Dissemination
ACHILLES project launches official Website and...
February 18, 2025
News: Dissemination
Nuno Gonçalves presents seminar at the...
April 11, 2025
News: Results and Achievements
Nuno receives three awards from NEEEC/AAC
April 7, 2025
News: Others
Announcement of (8) Research Grants
March 17, 2025
News: Results and Achievements
Best Paper Award @ICPRAM 2025
February 26, 2025
News: Dissemination
Nuno Gonçalves presents seminar at the...
April 11, 2025
News: Results and Achievements
Nuno receives three awards from NEEEC/AAC
April 7, 2025
News: Others
Announcement of (8) Research Grants
March 17, 2025
News: Dissemination
Nuno Gonçalves presents seminar at the...
April 11, 2025
News: Results and Achievements
Nuno receives three awards from NEEEC/AAC
April 7, 2025
News: Others
Announcement of (8) Research Grants
March 17, 2025
News: Results and Achievements
Best Paper Award @ICPRAM 2025
February 26, 2025

Protecting and Detecting: Leading Visual Information Security

Our projects
Our Researches

Featured project

All Projects

UniqueMark

This project aims to improve the safety of INCM's contrasting marks in precious metal artefacts (the precious metals are officially designated: gold, silver, platinum and palladium), making them unique and unable to be copied and faked. One of the objectives of this project is to allow the test of authenticity...
Start date: 2016-01-06
End date: 2018-01-05
Funding by: Imprensa Nacional Casa da Moeda (INCM)
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Project In progress
BlockDFake
Project In progress
UniqueMark Operation
The UniqueMark project, developed between INCM and UC, betwe...
Project In progress
ACHILLES
Inspired by the Olympic motto “Citius, Altius, Fortius...
Project In progress
ICAO compliant Dataset
This ICAO Compliant Dataset project is part of the FACING2 p...
Project In progress
FACING2 – Face Image Understanding
The FACING-2 project aims to study and develop methods that ...
Project Completed
TruIM – Trust Image Understanding
TruIm Project aims at developing technologies to authenticat...
Project Completed
VISUAL-ID – Unique Visual Identities in Graphics, Images and Faces
The Visual-ID project emerge in the context of the partnersh...
Project Completed
FACING
Os principais objetivos deste projeto são a realização de ba...
Project Completed
UniqueMark Pilot
–
Project In progress
CertifyMeAP
Project In progress
ACHILLES
Inspired by the Olympic motto “Citius, Altius, Fortius...
Project In progress
FACING2 – Face Image Understanding
The FACING-2 project aims to study and develop methods that ...
Project Completed
UniqueMark Pilot
–
ICAO compliant Dataset
Funded by:Imprensa Nacional Casa da Moeda (INCM)
Know more
Project In progress

UniqueMark Operation

The UniqueMark project, developed between INCM and UC, between the end of 2016 and mid-201...

Project In progress

ACHILLES

Inspired by the Olympic motto “Citius, Altius, Fortius” (Faster, Higher, Stron...

Project In progress
UniqueMark Operation
The UniqueMark project, developed between INCM and UC, betwe...
Project In progress
ACHILLES
Inspired by the Olympic motto “Citius, Altius, Fortius...
Project In progress
ICAO compliant Dataset
This ICAO Compliant Dataset project is part of the FACING2 p...
Project In progress
FACING2 – Face Image Understanding
The FACING-2 project aims to study and develop methods that ...

Featured Papers

All publications

Towards Secure Biometric Solutions: Enhancing Facial Recognition while Protecting User Data

Authors: Jose Silva, Aniana Cruz, Bruno Sousa and Nuno Gonçalves
Featured in: 14th International Conference on Pattern Recognition Applications and Methods (ICPRAM) 2025

StylePuncher: encoding a hidden QR code into images

Authors: Farhad Shadmand, Luiz Schirmer and Nuno Gonçalves
Featured in: 14th International Conference on Pattern Recognition Applications and Methods (ICPRAM) 2025

RiemStega: Covariance-based loss for print-proof transmission of data in images

Authors: Aniana Cruz; Guilherme Schardong; Luiz Schirmer; João Marcos, Farhad Shadmand; Nuno Gonçalves
Featured in: IEEE/CVF Winter Conference on Applications of Computer Vision (WACV) 2025
All publications

RiemStega: Covariance-based loss for print-proof transmission of data in images

Featured in: IEEE/CVF Winter Conference on Applications of Computer Vision (WACV) 2025
Authors: Aniana Cruz; Guilherme Schardong; Luiz Schirmer; João Marcos, Farhad Shadmand; Nuno Gonçalves
Know more

RiemStega: Covariance-based loss for print-proof transmission of data in images

Featured in: IEEE/CVF Winter Conference on Applications of Computer Vision (WACV) 2025
Authors: Aniana Cruz; Guilherme Schardong; Luiz Schirmer; João Marcos, Farhad Shadmand; Nuno Gonçalves
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MorFacing: A Benchmark for Estimation Face Recognition Robustness to Face Morphing Attacks

Featured in: IEEE International Joint Conference on Biometrics (IJCB 2024)
Authors: Iurii Medvedev and Nuno Gonçalves
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MorFacing: A Benchmark for Estimation Face Recognition Robustness to Face Morphing Attacks

Featured in: IEEE International Joint Conference on Biometrics (IJCB 2024)
Authors: Iurii Medvedev and Nuno Gonçalves
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OUR RESEARCHERS

All researchers
Iurii Medvedev
Researcher
Jin Bo
Post-Doc Researcher
Guilherme Schardong
Post-Doc Researcher
Diogo Nunes
Researcher
Miguel Leão
Researcher
Aniana Cruz
Post-Doc Researcher
Carla Guerra
Post-Doc Researcher
Ruben Bento
Researcher
André Neto
Master Student
Carla Gomes
Staff
Luís Pereira
Researcher
Bruno Patrão
Researcher
Jorge Monteiro
Researcher
António Madaleno
Researcher
Tadeu Ferreira
Master Student
Ricardo Barata
Researcher
Dirce Celorico
Researcher
Farhad Shadmand
PhD Student
Leandro Cruz
Post-Doc Researcher
Miguel Garruço
Master Student
Nuno Monteiro
Researcher
Luiz Schirmer
Post-Doc Researcher
David Carreira
Researcher
João Cardoso
Researcher
Ainhoa Sagardoy
Master Student (Erasmus)
Andoni Santos
Researcher
Gledson Melotti
PhD Student
Daniele Barbato
Master Student
Luís Gonçalo
Researcher
Alessandro Afloarei
Master Student
Rohit Kumar
Researcher
Eduardo Guerra
Research Engineer
Rafael Pereira
Master Student
Vasco Ferreira
Master Student
Ana Catarina Almeida
Researcher
Pedro Martins
Master Student
Rui Barbosa
Master Student
Viviana Abreu
Master Student
Henrique Mendes
Master Student
Joana Pimenta
Master Student
João Tremoço
Master Student
Leandro Dihl
Post-Doc Researcher
Telmo Cunha
Master Student
Pedro Gonçalves
Master Student
Allan da Silva
Post-Doc Researcher
Ajnas Muhammed
Post-Doc Researcher
João Marcos
Post-Doc Researcher and Project Manager
Nuno Gonçalves
Researcher Coordinator, VIS TEAM Leader
Ali Ahmadi
PhD Student
Carlos Roxo
PhD Student
Francisco Porto
Master Student
Ruben Castanheira
Master Student
Gustavo Bongiovi
Science Manager
David Ferreira
Researcher

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