activity
20232026
collaborators

5 papers

cs.CV2026

From Noise to Meaning: Meaningful Secret Sharing with Tamper Detection for Facial Recognition

Ajnas Muhammed, Iurii Medvedev, Nuno Gonçalves

Popularity of AI-based face recognition system directly demands protection of sensitive biometric data used for training. Visual secret sharing is an interesting idea, as it splits…

cs.CV2025

MorphGuard: Morph Specific Margin Loss for Enhancing Robustness to Face Morphing Attacks

Iurii Medvedev, Nuno Goncalves

Face recognition has evolved significantly with the advancement of deep learning techniques, enabling its widespread adoption in various applications requiring secure authenticatio…

cs.CV2024

Quadruplet Loss For Improving the Robustness to Face Morphing Attacks

Iurii Medvedev, Nuno Gonçalves

Recent advancements in deep learning have revolutionized technology and security measures, necessitating robust identification methods. Biometric approaches, leveraging personalize…

cs.CV2023

Fused Classification For Differential Face Morphing Detection

Iurii Medvedev, Joana Pimenta, Nuno Gonçalves

Face morphing, a sophisticated presentation attack technique, poses significant security risks to face recognition systems. Traditional methods struggle to detect morphing attacks,…

cs.CV2023

Impact of Image Context for Single Deep Learning Face Morphing Attack Detection

Joana Pimenta, Iurii Medvedev, Nuno Gonçalves

The increase in security concerns due to technological advancements has led to the popularity of biometric approaches that utilize physiological or behavioral characteristics for e…