1 code implementation • 19 Oct 2022 • Felix Rosberg, Eren Erdal Aksoy, Fernando Alonso-Fernandez, Cristofer Englund
In this work, we present a new single-stage method for subject agnostic face swapping and identity transfer, named FaceDancer.
Ranked #1 on Face Swapping on AFLW2000-3D
1 code implementation • 14 Jul 2020 • Fredrik Svanstrom, Cristofer Englund, Fernando Alonso-Fernandez
Besides the common video and audio sensors, the system also includes a thermal infrared camera, which is shown to be a feasible solution to the drone detection task.
1 code implementation • 8 Aug 2023 • Jan Niklas Kolf, Fadi Boutros, Jurek Elliesen, Markus Theuerkauf, Naser Damer, Mohamad Alansari, Oussama Abdul Hay, Sara Alansari, Sajid Javed, Naoufel Werghi, Klemen Grm, Vitomir Štruc, Fernando Alonso-Fernandez, Kevin Hernandez Diaz, Josef Bigun, Anjith George, Christophe Ecabert, Hatef Otroshi Shahreza, Ketan Kotwal, Sébastien Marcel, Iurii Medvedev, Bo Jin, Diogo Nunes, Ahmad Hassanpour, Pankaj Khatiwada, Aafan Ahmad Toor, Bian Yang
To drive further development of efficient face recognition models, the submitted solutions are ranked based on a weighted score of the achieved verification accuracies on a diverse set of benchmarks, as well as the deployability given by the number of floating-point operations and model size.
1 code implementation • 16 May 2023 • Guojun Liang, Prayag Tiwari, Sławomir Nowaczyk, Stefan Byttner, Fernando Alonso-Fernandez
Also, by F1-score and probability distribution analysis, we demonstrate that DVGNN better reflects the causal relationship and uncertainty of dynamic graphs.
1 code implementation • 11 Mar 2022 • Pontus Hedman, Vasilios Skepetzis, Kevin Hernandez-Diaz, Josef Bigun, Fernando Alonso-Fernandez
To help in counteracting such issues, we contribute with a database of facial images that includes several manipulations.
no code implementations • 17 Sep 2018 • Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigun
Periocular refers to the region around the eye, including sclera, eyelids, lashes, brows and skin.
no code implementations • 8 Oct 2018 • Fernando Alonso-Fernandez, Josef Bigun
Periocular refers to the facial region in the vicinity of the eye, including eyelids, lashes and eyebrows.
1 code implementation • 23 Oct 2018 • Frida Femling, Adam Olsson, Fernando Alonso-Fernandez
This paper describes an approach of creating a system identifying fruit and vegetables in the retail market using images captured with a video camera attached to the system.
no code implementations • 23 Oct 2018 • Dimitrios Varytimidis, Fernando Alonso-Fernandez, Boris Duran, Cristofer Englund
Action and intention recognition of pedestrians in urban settings are challenging problems for Advanced Driver Assistance Systems as well as future autonomous vehicles to maintain smooth and safe traffic.
no code implementations • 23 Oct 2018 • Ram P. Krish, Julian Fierrez, Daniel Ramos, Fernando Alonso-Fernandez, Josef Bigun
We report significant improvements in the rank identification accuracies when these minutiae matchers are augmented with our proposed algorithm based on rare minutiae features.
no code implementations • 23 Oct 2018 • Fernando Alonso-Fernandez, Josef Bigun, Cristofer Englund
Periocular is the facial region in the immediate vicinity of the eye.
no code implementations • 21 Feb 2019 • Fernando Alonso-Fernandez, Kiran B. Raja, R. Raghavendra, Cristoph Busch, Josef Bigun, Ruben Vera-Rodriguez, Julian Fierrez
Experiments are also reported with a database of VIS images from different smartphones.
no code implementations • 14 Feb 2020 • Kevin Hernandez Diaz, Fernando Alonso-Fernandez, Josef Bigun
Cross-spectral verification remains a big issue in biometrics, especially for the ocular area due to differences in the reflected features in the images depending on the region and spectrum used.
no code implementations • 24 Mar 2020 • Nicole Mariah Sharon Belvisi, Naveed Muhammad, Fernando Alonso-Fernandez
In this work, we aim at identifying authors of tweet messages, which are limited to 280 characters.
no code implementations • 23 Apr 2020 • Nathalie Tkauc, Thao Tran, Kevin Hernandez-Diaz, Fernando Alonso-Fernandez
This paper describes the implementation of a system to recognize employees and visitors wanting to gain access to a physical office through face images and speech-to-text recognition.
no code implementations • 23 Apr 2020 • Felix Nilsson, Jens Jakobsen, Fernando Alonso-Fernandez
Accordingly, the goal is to develop a solution which can measure the operational state using the input from a video camera capturing a factory floor.
no code implementations • 16 May 2020 • Josef Bigun, Fernando Alonso-Fernandez
To that end, a novel multi-scale minutia model where location, direction, and scale of minutia parameters are steerable, without the creation of uncontrollable minutia is also presented.
no code implementations • 16 Jul 2020 • Fernando Alonso-Fernandez, Javier Barrachina, Kevin Hernandez-Diaz, Josef Bigun
Accordingly, we address the challenge of developing a lightweight face recognition network of just a few megabytes that can operate with sufficient accuracy in comparison to much larger models.
no code implementations • 31 Jul 2020 • Fernando Alonso-Fernandez, Nicole Mariah Sharon Belvisi, Kevin Hernandez-Diaz, Naveed Muhammad, Josef Bigun
With a large number of training Tweets (>500), a good accuracy (Rank-5>80%) is achievable with only a few dozens of test Tweets, even with several thousands of authors.
no code implementations • 26 Aug 2020 • Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigun
Recognition experiments are done using a number of off-the-shelf periocular comparators based both on hand-crafted features and CNN descriptors.
no code implementations • 31 Mar 2021 • Fernando Alonso-Fernandez, Kevin Hernandez Diaz, Silvia Ramis, Francisco J. Perales, Josef Bigun
Also, the use of mobile devices has exploded, with the pandemic further accelerating the migration to digital services.
no code implementations • 7 Apr 2021 • Cristofer Englund, Eren Erdal Aksoy, Fernando Alonso-Fernandez, Martin Daniel Cooney, Sepideh Pashami, Bjorn Astrand
This paper describes AI perspectives in SCC and gives an overview of AI-based technologies used in traffic to enable road vehicle automation and smart traffic control.
no code implementations • 16 Jul 2021 • Elias Josse, Amanda Nerborg, Kevin Hernandez-Diaz, Fernando Alonso-Fernandez
The world is expecting an aging population and shortage of healthcare professionals.
no code implementations • 17 Oct 2021 • Pontus Hedman, Vasilios Skepetzis, Kevin Hernandez-Diaz, Josef Bigun, Fernando Alonso-Fernandez
Although there is room for improvement, when neither U-NET reconstruction nor training with filtered images is applied, the accuracy with filters that severely occlude the eye is <72% (identification) and >12% (EER)
no code implementations • 20 Oct 2021 • Anton Persson, Niklas Dymne, Fernando Alonso-Fernandez
This work is aimed at creating a system that can classify different types of plastics by using picture analysis, in particular, black plastics of the type Polystyrene (PS) and Acrylonitrile Butadiene Styrene (ABS).
no code implementations • 30 Oct 2021 • Virginia Ruiz-Albacete, Pedro Tome-Gonzalez, Fernando Alonso-Fernandez, Javier Galbally, Julian Fierrez, Javier Ortega-Garcia
In this contribution, the vulnerabilities of iris-based recognition systems to direct attacks are studied.
no code implementations • 30 Oct 2021 • Fernando Alonso-Fernandez, Pedro Tome-Gonzalez, Virginia Ruiz-Albacete, Javier Ortega-Garcia
We extract characteristic SIFT feature points in scale space and perform matching based on the texture information around the feature points using the SIFT operator.
no code implementations • 2 Nov 2021 • Javier Galbally, Fernando Alonso-Fernandez, Julian Fierrez, Javier Ortega-Garcia
A new software-based liveness detection approach using a novel fingerprint parameterization based on quality related features is proposed.
no code implementations • 2 Nov 2021 • Fredrik Svanström, Fernando Alonso-Fernandez, Cristofer Englund
To counteract the mentioned issues and allow fundamental studies with a common public benchmark, we contribute with an annotated multi-sensor database for drone detection that includes infrared and visible videos and audio files.
no code implementations • 2 Nov 2021 • Julian Fierrez, Javier Galbally, Javier Ortega-Garcia, Manuel R Freire, Fernando Alonso-Fernandez, Daniel Ramos, Doroteo Torre Toledano, Joaquin Gonzalez-Rodriguez, Juan A Siguenza, Javier Garrido-Salas, E Anguiano, Guillermo Gonzalez-de-Rivera, Ricardo Ribalda, Marcos Faundez-Zanuy, JA Ortega, Valentín Cardeñoso-Payo, A Viloria, Carlos E Vivaracho, Q Isaac Moro, Juan J Igarza, J Sanchez, Inmaculada Hernaez, Carlos Orrite-Urunuela, Francisco Martinez-Contreras, Juan José Gracia-Roche
A new multimodal biometric database, acquired in the framework of the BiosecurID project, is presented together with the description of the acquisition setup and protocol.
no code implementations • 14 Nov 2021 • Fernando Alonso-Fernandez, Julian Fierrez, Javier Ortega-Garcia, Joaquin Gonzalez-Rodriguez, Hartwig Fronthaler, Klaus Kollreider, Josef Bigun
One of the open issues in fingerprint verification is the lack of robustness against image-quality degradation.
no code implementations • 17 Nov 2021 • Javier Ortega-Garcia, Julian Fierrez, Fernando Alonso-Fernandez, Javier Galbally, Manuel R Freire, Joaquin Gonzalez-Rodriguez, Carmen Garcia-Mateo, Jose-Luis Alba-Castro, Elisardo Gonzalez-Agulla, Enrique Otero-Muras, Sonia Garcia-Salicetti, Lorene Allano, Bao Ly-Van, Bernadette Dorizzi, Josef Kittler, Thirimachos Bourlai, Norman Poh, Farzin Deravi, Ming NR Ng, Michael Fairhurst, Jean Hennebert, Andreas Humm, Massimo Tistarelli, Linda Brodo, Jonas Richiardi, Andrezj Drygajlo, Harald Ganster, Federico M Sukno, Sri-Kaushik Pavani, Alejandro Frangi, Lale Akarun, Arman Savran
It is comprised of more than 600 individuals acquired simultaneously in three scenarios: 1) over the Internet, 2) in an office environment with desktop PC, and 3) in indoor/outdoor environments with mobile portable hardware.
no code implementations • 17 Nov 2021 • Norman Poh, Thirimachos Bourlai, Josef Kittler, Lorene Allano, Fernando Alonso-Fernandez, Onkar Ambekar, John Baker, Bernadette Dorizzi, Omolara Fatukasi, Julian Fierrez, Harald Ganster, Javier Ortega-Garcia, Donald Maurer, Albert Ali Salah, Tobias Scheidat, Claus Vielhauer
The cost-sensitive evaluation, on the other hand, investigates how well a fusion algorithm can perform given restricted computation and in the presence of software and hardware failures, resulting in errors such as failure-to-acquire and failure-to-match.
no code implementations • 17 Nov 2021 • Fernando Alonso-Fernandez, Julian Fierrez, Javier Ortega-Garcia
Biometric technology has been increasingly deployed in the past decade, offering greater security and convenience than traditional methods of personal recognition.
no code implementations • 25 Jan 2022 • Adrian Leo Hagström, Rustam Stanikzai, Josef Bigun, Fernando Alonso-Fernandez
With ten enrolment samples, the Top-1 accuracy with deep features is around 94%, and reaches nearly 100% by Top-10.
no code implementations • 26 Jan 2022 • Fernando Alonso-Fernandez, Josef Bigun
We describe a technical solution implemented at Halmstad University to automatise assessment and reporting of results of paper-based quiz exams.
no code implementations • 12 Apr 2022 • Fernando Alonso-Fernandez, Reuben A. Farrugia, Julian Fierrez, Josef Bigun
Such techniques are designed to restore generic images and therefore do not exploit the specific structure found in biometric images (e. g. iris or faces), which causes the solution to be sub-optimal.
no code implementations • 5 Jul 2022 • Fredrik Svanström, Fernando Alonso-Fernandez, Cristofer Englund
In conjunction with standard video cameras and microphone sensors, we explore the use of thermal infrared cameras, pointed out as a feasible and promising solution that is scarcely addressed in the related literature.
no code implementations • 11 Jul 2022 • Javier Galbally, Julian Fierrez-Aguilar, Joaquin Rodriguez-Gonzalez, Fernando Alonso-Fernandez, Javier Ortega-Garcia, Marino Tapiador
A new method to generate gummy fingers is presented.
no code implementations • 11 Jul 2022 • Javier Galbally, Fernando Alonso-Fernandez, Julian Fierrez, Javier Ortega-Garcia
A new fingerprint parameterization for liveness detection based on quality measures is presented.
no code implementations • 12 Jul 2022 • Julian Fierrez-Aguilar, Luis-Miguel Muñoz-Serrano, Fernando Alonso-Fernandez, Javier Ortega-Garcia
The effect of image quality degradation on the verification performance of automatic fingerprint recognition is investigated.
no code implementations • 12 Jul 2022 • Fernando Alonso-Fernandez, Julian Fierrez-Aguilar, Javier Ortega-Garcia
Fingerprint image quality affects heavily the performance of fingerprint recognition systems.
no code implementations • 12 Oct 2022 • Kien Nguyen, Hugo Proença, Fernando Alonso-Fernandez
In this survey, we provide a comprehensive review of more than 200 papers, technical reports, and GitHub repositories published over the last 10 years on the recent developments of deep learning techniques for iris recognition, covering broad topics on algorithm designs, open-source tools, open challenges, and emerging research.
no code implementations • 18 Oct 2022 • Fernando Alonso-Fernandez, Anna Mikaelyan, Josef Bigun
Fusion experiments among the available systems are also provided.
no code implementations • 18 Oct 2022 • Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigun
Current research in iris recognition is moving towards enabling more relaxed acquisition conditions.
no code implementations • 20 Oct 2022 • Fernando Alonso-Fernandez, Julian Fierrez-Aguilar, Javier Ortega-Garcia
Several works related to information fusion for signature verification have been presented.
no code implementations • 20 Oct 2022 • Fernando Alonso-Fernandez, Julian Fierrez-Aguilar, Francisco del-Valle, Javier Ortega-Garcia
On-line signature verification for Tablet PC devices is studied.
no code implementations • 20 Oct 2022 • Eduardo Ribeiro, Andreas Uhl, Fernando Alonso-Fernandez
Several recent works have addressed the ability of deep learning to disclose rich, hierarchical and discriminative models for the most diverse purposes.
no code implementations • 24 Oct 2022 • Ester Gonzalez-Sosa, Julian Fierrez, Ruben Vera-Rodriguez, Fernando Alonso-Fernandez
The role of soft biometrics to enhance person recognition systems in unconstrained scenarios has not been extensively studied.
no code implementations • 24 Oct 2022 • Eduardo Ribeiro, Andreas Uhl, Fernando Alonso-Fernandez
The use of low-resolution images adopting more relaxed acquisition conditions such as mobile phones and surveillance videos is becoming increasingly common in iris recognition nowadays.
no code implementations • 25 Oct 2022 • Andreas Ranftl, Fernando Alonso-Fernandez, Stefan Karlsson, Josef Bigun
Tracking capabilities are provided by extrapolating the position of the likelihood map to the next frame by optical flow computation.
no code implementations • 10 Nov 2022 • Fernando Alonso-Fernandez, Josef Bigun
We present a new system for eye detection based on complex symmetry filters, which has the advantage of not needing training.
no code implementations • 10 Nov 2022 • Heinz Hofbauer, Fernando Alonso-Fernandez, Josef Bigun, Andreas Uhl
In this study the authors will look at the detection and segmentation of the iris and its influence on the overall performance of the iris-biometric tool chain.
no code implementations • 24 Nov 2022 • Hartwig Fronthaler, Klaus Kollreider, Josef Bigun, Julian Fierrez, Fernando Alonso-Fernandez, Javier Ortega-Garcia, Joaquin Gonzalez-Rodriguez
This is also supported by numerous experiments involving a simpler quality estimator, a trained method (NFIQ), as well as the human perception of fingerprint quality on several public databases.
no code implementations • 24 Nov 2022 • Fernando Alonso-Fernandez, Julian Fierrez, Daniel Ramos, Joaquin Gonzalez-Rodriguez
We compare our fusion approach to a set of rule-based fusion schemes over normalized scores.
no code implementations • 4 Dec 2022 • Fernando Alonso-Fernandez, Julian Fierrez-Aguilar, Hartwig Fronthaler, Klaus Kollreider, Javier Ortega-Garcia, Joaquin Gonzalez-Rodriguez, Josef Bigun
Fusion experiments I volving different combinations of the available systems are presented.
no code implementations • 9 Dec 2022 • Jonathan Karlsson, Fredrik Strand, Josef Bigun, Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Felix Nilsson
Workplace injuries are common in today's society due to a lack of adequately worn safety equipment.
no code implementations • 9 Dec 2022 • August Baaz, Yonan Yonan, Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Felix Nilsson
In object classification, capturing a large number of images per object and in different conditions is not always possible and can be very time-consuming and tedious.
no code implementations • 9 Dec 2022 • Otto Zell, Joel Pålsson, Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Felix Nilsson
Accordingly, this work looks into the potential of AI to detect and recognize fires and reduce detection time using object detection on an image stream.
no code implementations • 28 Dec 2022 • Fernando Alonso-Fernandez, Josef Bigun, Julian Fierrez, Naser Damer, Hugo Proença, Arun Ross
Periocular refers to the externally visible region of the face that surrounds the eye socket.
no code implementations • 11 Jan 2023 • Fernando Alonso-Fernandez, Julian Fierrez-Aguilar, Javier Ortega-Garcia, Joaquin Gonzalez-Rodriguez
Low-cost portable devices capable of capturing signature signals are being increasingly used.
no code implementations • 11 Jul 2023 • Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigun
In this paper, we investigate the behavior of deep representations in widely used CNN models under extreme data scarcity for One-Shot periocular recognition, a biometric recognition task.
no code implementations • 19 Jul 2023 • Moa Arvidsson, Sithichot Sawirot, Cristofer Englund, Fernando Alonso-Fernandez, Martin Torstensson, Boris Duran
This work is aimed at creating a solution based on a nano-drone that navigates across rows of parked vehicles and detects their license plates.
no code implementations • 20 Jul 2023 • Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Jose Maria Buades Rubio, Josef Bigun
The widespread use of mobile devices for various digital services has created a need for reliable and real-time person authentication.
no code implementations • 25 Jul 2023 • Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Jose M. Buades, Prayag Tiwari, Josef Bigun
This paper describes an adaptation of the Local Interpretable Model-Agnostic Explanations (LIME) AI method to operate under a biometric verification setting.
no code implementations • 26 Jul 2023 • Fernando Alonso-Fernandez, Josef Bigun
Periocular biometrics has been established as an independent modality due to concerns on the performance of iris or face systems in uncontrolled conditions.
no code implementations • 8 Sep 2023 • Felix Rosberg, Eren Erdal Aksoy, Cristofer Englund, Fernando Alonso-Fernandez
In this paper, we present a new approach for facial anonymization in images and videos, abbreviated as FIVA.
Ranked #1 on Face Anonymization on LFW
no code implementations • 2 Nov 2023 • Eduardo Ribeiro, Andreas Uhl, Fernando Alonso-Fernandez, Reuben A. Farrugia
In this work we test the ability of deep learning methods to provide an end-to-end mapping between low and high resolution images applying it to the iris recognition problem.
no code implementations • 2 Nov 2023 • Fernando Alonso-Fernandez, Kiran B. Raja, Christoph Busch, Josef Bigun
The proliferation of cameras and personal devices results in a wide variability of imaging conditions, producing large intra-class variations and a significant performance drop when images from heterogeneous environments are compared.
no code implementations • 3 Nov 2023 • Anna Mikaelyan, Fernando Alonso-Fernandez, Josef Bigun
The origin is also a unique singularity of all harmonic functions, helping to determine the location of a keypoint precisely, whereas the functions describe the object shape of the neighborhood.
no code implementations • 8 Apr 2024 • Talha Hanif Butt, Prayag Tiwari, Fernando Alonso-Fernandez
Safe overtakes in trucks are crucial to prevent accidents, reduce congestion, and ensure efficient traffic flow, making early prediction essential for timely and informed driving decisions.