1.4k citations · 4.6k across the 52 of their papers we have counts for
16 papers · 1 filter
Serial fusion of multi-modal biometric systems
Gian Luca Marcialis, Paolo Mastinu, Fabio Roli
Serial, or sequential, fusion of multiple biometric matchers has been not thoroughly investigated so far. However, this approach exhibits some advantages with respect to the widely…
3D Face Reconstruction: the Road to Forensics
Simone Maurizio La Cava, Giulia Orrù, Martin Drahansky +2
3D face reconstruction algorithms from images and videos are applied to many fields, from plastic surgery to the entertainment sector, thanks to their advantageous features. Howeve…
Adversarial Attacks Against Uncertainty Quantification
Emanuele Ledda, Daniele Angioni, Giorgio Piras +3
Machine-learning models can be fooled by adversarial examples, i.e., carefully-crafted input perturbations that force models to output wrong predictions. While uncertainty quantifi…
Hardening RGB-D Object Recognition Systems against Adversarial Patch Attacks
Yang Zheng, Luca Demetrio, Antonio Emanuele Cinà +6
RGB-D object recognition systems improve their predictive performances by fusing color and depth information, outperforming neural network architectures that rely solely on colors.…
Can machines learn to see without visual databases?
Alessandro Betti, Marco Gori, Stefano Melacci +2
This paper sustains the position that the time has come for thinking of learning machines that conquer visual skills in a truly human-like context, where a few human-like object su…
Detecting Anomalies from Video-Sequences: a Novel Descriptor
Giulia Orrù, Davide Ghiani, Maura Pintor +2
We present a novel descriptor for crowd behavior analysis and anomaly detection. The goal is to measure by appropriate patterns the speed of formation and disintegration of groups…
Are spoofs from latent fingerprints a real threat for the best state-of-art liveness detectors?
Roberto Casula, Giulia Orrù, Daniele Angioni +3
We investigated the threat level of realistic attacks using latent fingerprints against sensors equipped with state-of-art liveness detectors and fingerprint verification systems w…
A novel classification-selection approach for the self updating of template-based face recognition systems
Giulia Orrù, Gian Luca Marcialis, Fabio Roli
The boosting on the need of security notably increased the amount of possible facial recognition applications, especially due to the success of the Internet of Things (IoT) paradig…
Deep Neural Rejection against Adversarial Examples
Angelo Sotgiu, Ambra Demontis, Marco Melis +4
Despite the impressive performances reported by deep neural networks in different application domains, they remain largely vulnerable to adversarial examples, i.e., input samples t…
3D Face Mask Presentation Attack Detection Based on Intrinsic Image Analysis
Lei Li, Zhaoqiang Xia, Xiaoyue Jiang +3
Face presentation attacks have become a major threat to face recognition systems and many countermeasures have been proposed in the past decade. However, most of them are devoted t…
Face Presentation Attack Detection in Learned Color-liked Space
Lei Li, Zhaoqiang Xia, Xiaoyue Jiang +2
Face presentation attack detection (PAD) has become a thorny problem for biometric systems and numerous countermeasures have been proposed to address it. However, majority of them…
Super-sparse Learning in Similarity Spaces
Ambra Demontis, Marco Melis, Battista Biggio +2
In several applications, input samples are more naturally represented in terms of similarities between each other, rather than in terms of feature vectors. In these settings, machi…
Wild Patterns: Ten Years After the Rise of Adversarial Machine Learning
Battista Biggio, Fabio Roli
Learning-based pattern classifiers, including deep networks, have shown impressive performance in several application domains, ranging from computer vision to cybersecurity. Howeve…
Review of the Fingerprint Liveness Detection (LivDet) competition series: 2009 to 2015
Luca Ghiani, David A. Yambay, Valerio Mura +3
A spoof attack, a subset of presentation attacks, is the use of an artificial replica of a biometric in an attempt to circumvent a biometric sensor. Liveness detection, or presenta…
Statistical Meta-Analysis of Presentation Attacks for Secure Multibiometric Systems
Battista Biggio, Giorgio Fumera, Gian Luca Marcialis +1
Prior work has shown that multibiometric systems are vulnerable to presentation attacks, assuming that their matching score distribution is identical to that of genuine users, with…
A Multiple Component Matching Framework for Person Re-Identification
Riccardo Satta, Giorgio Fumera, Fabio Roli +2
Person re-identification consists in recognizing an individual that has already been observed over a network of cameras. It is a novel and challenging research topic in computer vi…