Josef Bigün

ORCID

Publication Activity (10 Years)

Years Active: 1988-2024
Publications (10 Years): 76

Top Venues

Linköping University, Sweden (PHD)

Education History

Linköping University, Sweden

PHD

Publications

Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Jose Maria Buades Rubio, Prayag Tiwari, Josef Bigün
Deep Network Pruning: A Comparative Study on CNNs in Face Recognition. CoRR (2024)
Fernando Alonso-Fernandez, Josef Bigün, Julian Fiérrez, Naser Damer, Hugo Proença, Arun Ross
Periocular Biometrics: A Modality for Unconstrained Scenarios. Computer 57 (6) (2024)
Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Prayag Tiwari, Josef Bigün
Combined CNN and ViT features off-the-shelf: Another astounding baseline for recognition. CoRR (2024)
Kevin Hernandez-Diaz, Josef Bigün, Fernando Alonso-Fernandez
Understanding and Improving CNNs with Complex Structure Tensor: A Biometrics Study. CoRR (2024)
Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigün
One-Shot Learning for Periocular Recognition: Exploring the Effect of Domain Adaptation and Data Bias on Deep Representations. IEEE Access 11 (2023)
Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Jose Maria Buades Rubio, Prayag Tiwari, Josef Bigün
An Explainable Model-Agnostic Algorithm for CNN-Based Biometrics Verification. WIFS (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 Struc, Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Josef Bigün, 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
EFaR 2023: Efficient Face Recognition Competition. CoRR (2023)
Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Jose Maria Buades Rubio, Josef Bigün
SqueezerFaceNet: Reducing a Small Face Recognition CNN Even More Via Filter Pruning. CoRR (2023)
Fernando Alonso-Fernandez, Josef Bigün
Periocular biometrics: databases, algorithms and directions. CoRR (2023)
Fernando Alonso-Fernandez, Kiran B. Raja, Christoph Busch, Josef Bigün
Log-Likelihood Score Level Fusion for Improved Cross-Sensor Smartphone Periocular Recognition. CoRR (2023)
Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Jose Maria Buades Rubio, Josef Bigün
SqueezerFaceNet: Reducing a Small Face Recognition CNN Even More via Filter Pruning. IWAIPR (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 Struc, Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Josef Bigün, 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
EFaR 2023: Efficient Face Recognition Competition. IJCB (2023)
Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigün
One-Shot Learning for Periocular Recognition: Exploring the Effect of Domain Adaptation and Data Bias on Deep Representations. CoRR (2023)
Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Jose Maria Buades Rubio, Prayag Tiwari, Josef Bigün
An Explainable Model-Agnostic Algorithm for CNN-based Biometrics Verification. CoRR (2023)
Christoph Busch, Farzin Deravi, Dinusha Frings, Els Kindt, Ralph Lessmann, Alexander Nouak, Jean Salomon, Mateus Achcar, Fernando Alonso-Fernandez, Daniel Bachenheimer, David Bethell, Josef Bigün, Matthew Brawley, Guido Brockmann, Enrique Cabello, Patrizio Campisi, Aleksandrs Cepilovs, Miles Clee, Mickey Cohen, Christian Croll, Andrzej Czyzewski, Bernadette Dorizzi, Martin Drahanský, Pawel Drozdowski, Catherine Fankhauser, Julian Fiérrez, Marta Gomez-Barrero, Georg Hasse, Richard M. Guest, Ekaterina Komleva, Sébastien Marcel, Gian Luca Marcialis, Laurent Mercier, Emilio Mordini, Stefance Mouille, Pavlina Navratilova, Javier Ortega-Garcia, Dijana Petrovska, Norman Poh, Istvan Racz, Ramachandra Raghavendra, Christian Rathgeb, Christophe Remillet, Uwe Seidel, Luuk J. Spreeuwers, Brage Strand, Sirra Toivonen, Andreas Uhl
Facilitating free travel in the Schengen area - A position paper by the European Association for Biometrics. IET Biom. 12 (2) (2023)
Anna Mikaelyan, Fernando Alonso-Fernandez, Josef Bigün
Keypoint Description by Symmetry Assessment - Applications in Biometrics. CoRR (2023)
Jonathan Karlsson, Fredrik Strand, Josef Bigün, Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Felix Nilsson
Visual Detection of Personal Protective Equipment and Safety Gear on Industry Workers. ICPRAM (2023)
Jonathan Karlsson, Fredrik Strand, Josef Bigün, Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Felix Nilsson
Visual Detection of Personal Protective Equipment and Safety Gear on Industry Workers. CoRR (2022)
Fernando Alonso-Fernandez, Reuben A. Farrugia, Julian Fiérrez, Josef Bigün
Super-Resolution for Selfie Biometrics: Introduction and Application to Face and Iris. CoRR (2022)
Fernando Alonso-Fernandez, Josef Bigün
Near-infrared and visible-light periocular recognition with Gabor features using frequency-adaptive automatic eye detection. CoRR (2022)
Pontus Hedman, Vasilios Skepetzis, Kevin Hernandez-Diaz, Josef Bigün, Fernando Alonso-Fernandez
LFW-Beautified: A Dataset of Face Images with Beautification and Augmented Reality Filters. CoRR (2022)
Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigün
Very Low-Resolution Iris Recognition Via Eigen-Patch Super-Resolution and Matcher Fusion. CoRR (2022)
Pontus Hedman, Vasilios Skepetzis, Kevin Hernandez-Diaz, Josef Bigün, Fernando Alonso-Fernandez
On the effect of selfie beautification filters on face detection and recognition. Pattern Recognit. Lett. 163 (2022)
Adrian Leo Hagström, Rustam Stanikzai, Josef Bigün, Fernando Alonso-Fernandez
Writer Recognition Using Off-line Handwritten Single Block Characters. CoRR (2022)
Fernando Alonso-Fernandez, Anna Mikaelyan, Josef Bigün
Compact multi-scale periocular recognition using SAFE features. CoRR (2022)
Andreas Ranftl, Fernando Alonso-Fernandez, Stefan M. Karlsson, Josef Bigün
Real-time AdaBoost cascade face tracker based on likelihood map and optical flow. CoRR (2022)
Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigün, Julian Fiérrez, Enrique González-Sosa
A Survey of Super-Resolution in Iris Biometrics with Evaluation of Dictionary-Learning. CoRR (2022)
Fernando Alonso-Fernandez, Kiran B. Raja, Ramachandra Raghavendra, Christoph Busch, Josef Bigün, Rubén Vera-Rodríguez, Julian Fiérrez
Cross-sensor periocular biometrics in a global pandemic: Comparative benchmark and novel multialgorithmic approach. Inf. Fusion (2022)
Adrian Leo Hagström, Rustam Stanikzai, Josef Bigün, Fernando Alonso-Fernandez
Writer Recognition Using Off-line Handwritten Single Block Characters. IWBF (2022)
Fernando Alonso-Fernandez, Josef Bigün
Continuous Examination by Automatic Quiz Assessment Using Spiral Codes and Image Processing. EDUCON (2022)
Fernando Alonso-Fernandez, Josef Bigün
Continuous Examination by Automatic Quiz Assessment Using Spiral Codes and Image Processing. CoRR (2022)
Fernando Alonso-Fernandez, Josef Bigün, Julian Fiérrez, Naser Damer, Hugo Proença, Arun Ross
Periocular Biometrics: A Modality for Unconstrained Scenarios. CoRR (2022)
Fernando Alonso-Fernandez, Julian Fiérrez-Aguilar, Hartwig Fronthaler, Klaus Kollreider, Javier Ortega-Garcia, Joaquin Gonzalez-Rodriguez, Josef Bigün
Combining multiple matchers for fingerprint verification: A case study in biosecure network of excellence. CoRR (2022)
Hartwig Fronthaler, Klaus Kollreider, Josef Bigün, Julian Fiérrez, Fernando Alonso-Fernandez, Javier Ortega-Garcia, Joaquin Gonzalez-Rodriguez
Fingerprint Image-Quality Estimation and its Application to Multialgorithm Verification. CoRR (2022)
Heinz Hofbauer, Fernando Alonso-Fernandez, Josef Bigün, Andreas Uhl
Experimental analysis regarding the influence of iris segmentation on the recognition rate. CoRR (2022)
Fernando Alonso-Fernandez, Nicole Mariah Sharon Belvisi, Kevin Hernandez-Diaz, Naveed Muhammad, Josef Bigün
Writer Identification Using Microblogging Texts for Social Media Forensics. IEEE Trans. Biom. Behav. Identity Sci. 3 (3) (2021)
Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Silvia Ramis, Francisco José Perales López, Josef Bigün
Facial masks and soft-biometrics: Leveraging face recognition CNNs for age and gender prediction on mobile ocular images. IET Biom. 10 (5) (2021)
Fernando Alonso-Fernandez, Julian Fiérrez, Javier Ortega-Garcia, Joaquin Gonzalez-Rodriguez, Hartwig Fronthaler, Klaus Kollreider, Josef Bigün
A Comparative Study of Fingerprint Image-Quality Estimation Methods. CoRR (2021)
Pontus Hedman, Vasilios Skepetzis, Kevin Hernandez-Diaz, Josef Bigün, Fernando Alonso-Fernandez
On the Effect of Selfie Beautification Filters on Face Detection and Recognition. CoRR (2021)
Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Silvia Ramis, Francisco José Perales López, Josef Bigün
Facial Masks and Soft-Biometrics: Leveraging Face Recognition CNNs for Age and Gender Prediction on Mobile Ocular Images. CoRR (2021)
Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigün
Cross-Spectral Periocular Recognition with Conditional Adversarial Networks. CoRR (2020)
Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigün
Cross-Spectral Periocular Recognition with Conditional Adversarial Networks. IJCB (2020)
Fernando Alonso-Fernandez, Kevin Hernandez-Diaz, Silvia Ramis, Francisco José Perales López, Josef Bigün
Soft-Biometrics Estimation In the Era of Facial Masks. BIOSIG (2020)
Fernando Alonso-Fernandez, Javier Barrachina, Kevin Hernandez-Diaz, Josef Bigün
SqueezeFacePoseNet: Lightweight Face Verification Across Different Poses for Mobile Platforms. CoRR (2020)
Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigün
Spectrum Translation for Cross-Spectral Ocular Matching. CoRR (2020)
Fernando Alonso-Fernandez, Javier Barrachina, Kevin Hernandez-Diaz, Josef Bigün
SqueezeFacePoseNet: Lightweight Face Verification Across Different Poses for Mobile Platforms. ICPR Workshops (8) (2020)
Josef Bigün, Fernando Alonso-Fernandez
Analytic Signal Phase in N-D by Linear Symmetry Tensor-fingerprint modeling. CoRR (2020)
Fernando Alonso-Fernandez, Nicole Mariah Sharon Belvisi, Kevin Hernandez-Diaz, Naveed Muhammad, Josef Bigün
Forensic Writer Identification Using Microblogging Texts. CoRR (2020)
Ram P. Krish, Julian Fiérrez, Daniel Ramos, Fernando Alonso-Fernandez, Josef Bigün
Improving automated latent fingerprint identification using extended minutia types. Inf. Fusion 50 (2019)
Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigün
Cross Spectral Periocular Matching using ResNet Features. ICB (2019)
Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigün, Julian Fiérrez, Ester Gonzalez-Sosa
A Survey of Super-Resolution in Iris Biometrics With Evaluation of Dictionary-Learning. IEEE Access 7 (2019)
Fernando Alonso-Fernandez, Kiran B. Raja, Ramachandra Raghavendra, Christoph Busch, Josef Bigün, Rubén Vera-Rodríguez, Julian Fiérrez
Cross-Sensor Periocular Biometrics: A Comparative Benchmark including Smartphone Authentication. CoRR (2019)
Fernando Alonso-Fernandez, Josef Bigün
A Survey on Periocular Biometrics Research. CoRR (2018)
Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigün
Periocular Recognition Using CNN Features Off-the-Shelf. BIOSIG (2018)
Ram P. Krish, Julian Fiérrez, Daniel Ramos, Fernando Alonso-Fernandez, Josef Bigün
Improving Automated Latent Fingerprint Identification using Extended Minutia Types. CoRR (2018)
Kevin Hernandez-Diaz, Fernando Alonso-Fernandez, Josef Bigün
Periocular Recognition Using CNN Features Off-the-Shelf. CoRR (2018)
Fernando Alonso-Fernandez, Josef Bigün, Cristofer Englund
Expression Recognition Using the Periocular Region: A Feasibility Study. CoRR (2018)
Fernando Alonso-Fernandez, Josef Bigün, Cristofer Englund
Expression Recognition Using the Periocular Region: A Feasibility Study. SITIS (2018)
Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigün
Learning-based local-patch resolution reconstruction of iris smart-phone images. IJCB (2017)
Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigün
Improving Very Low-Resolution Iris Identification via Super-Resolution Reconstruction of Local Patches. BIOSIG (2017)
Ana F. Sequeira, Lulu Chen, James M. Ferryman, Peter Wild, Fernando Alonso-Fernandez, Josef Bigün, Kiran B. Raja, Ramachandra Raghavendra, Christoph Busch, Tiago de Freitas Pereira, Sébastien Marcel, Sushree Sangeeta Behera, Mahesh Gour, Vivek Kanhangad
Cross-eyed 2017: Cross-spectral iris/periocular recognition competition. IJCB (2017)
Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigün
Iris Super-Resolution Using Iterative Neighbor Embedding. CVPR Workshops (2017)
Martin Cooney, Josef Bigün
PastVision: Exploring "Seeing" into the Near Past with a Thermal Camera and Object Detection-For Robot Monitoring of Medicine Intake by Dementia Patients. SAIS (2017)
Martin Cooney, Josef Bigün
PastVision+: Thermovisual Inference of Recent Medicine Intake by Detecting Heated Objects and Cooled Lips. Frontiers Robotics AI 4 (2017)
Andreas Ranftl, Fernando Alonso-Fernandez, Stefan M. Karlsson, Josef Bigün
Real-time AdaBoost cascade face tracker based on likelihood map and optical flow. IET Biom. 6 (6) (2017)
Fernando Alonso-Fernandez, Kiran B. Raja, Christoph Busch, Josef Bigün
Log-likelihood score level fusion for improved cross-sensor smartphone periocular recognition. EUSIPCO (2017)
Fernando Alonso-Fernandez, Josef Bigün
Periocular biometrics: databases, algorithms and directions. IWBF (2016)
Fernando Alonso-Fernandez, Anna Mikaelyan, Josef Bigün
Compact multi-scale periocular recognition using SAFE features. ICPR (2016)
Thorsteinn S. Rögnvaldsson, Antanas Verikas, Josef Bigün, Slawomir Nowaczyk, Anita Pinheiro Sant'Anna, Björn Åstrand, Jens Lundström, Stefan Byttner, Roland Thörner, Fernando Alonso-Fernandez, Martin Cooney, Rafael Valencia
Center for Applied Intelligent Systems Research (Position paper). SAIS (2016)
Fernando Alonso-Fernandez, Josef Bigün
A survey on periocular biometrics research. Pattern Recognit. Lett. 82 (2016)
Fernando Alonso-Fernandez, Josef Bigün
Message from the general chairs. ICB (2016)
Ana F. Sequeira, Lulu Chen, Peter Wild, James M. Ferryman, Fernando Alonso-Fernandez, Kiran B. Raja, Ramachandra Raghavendra, Christoph Busch, Josef Bigün
Cross-Eyed - Cross-Spectral Iris/Periocular Recognition Database and Competition. BIOSIG (2016)
Josef Bigün, Anna Mikaelyan
Frequency Map by Structure Tensor in Logarithmic Scale Space and Forensic Fingerprints. CVPR Workshops (2016)
Heinz Hofbauer, Fernando Alonso-Fernandez, Josef Bigün, Andreas Uhl
Experimental analysis regarding the influence of iris segmentation on the recognition rate. IET Biom. 5 (3) (2016)
Abhishek Kumar Gangwar, Akanksha Joshi, Ashutosh Singh, Fernando Alonso-Fernandez, Josef Bigün
IrisSeg: A fast and robust iris segmentation framework for non-ideal iris images. ICB (2016)
Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigün
Very low-resolution iris recognition via Eigen-patch super-resolution and matcher fusion. BTAS (2016)
Carsten Gottschlich, Anna Mikaelyan, Martin Aastrup Olsen, Josef Bigün, Christoph Busch
Improving fingerprint alteration detection. ISPA (2015)
Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigün
Reconstruction of smartphone images for low resolution iris recognition. WIFS (2015)
Fernando Alonso-Fernandez, Josef Bigün
Near-infrared and visible-light periocular recognition with Gabor features using frequency-adaptive automatic eye detection. IET Biom. 4 (2) (2015)
Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigün
Eigen-patch iris super-resolution for iris recognition improvement. EUSIPCO (2015)
Fernando Alonso-Fernandez, Anna Mikaelyan, Josef Bigün
Comparison and fusion of multiple iris and periocular matchers using near-infrared and visible images. IWBF (2015)
Ram P. Krish, Julian Fiérrez, Daniel Ramos, Javier Ortega-Garcia, Josef Bigün
Pre-registration of latent fingerprints based on orientation field. IET Biom. 4 (2) (2015)
Ram P. Krish, Julian Fiérrez, Daniel Ramos, Javier Ortega-Garcia, Josef Bigün
Pre-registration for Improved Latent Fingerprint Identification. ICPR (2014)
Ram P. Krish, Julian Fiérrez, Daniel Ramos, Javier Ortega-Garcia, Josef Bigün
Partial fingerprint registration for forensics using minutiae-generated orientation fields. IWBF (2014)
Heinz Hofbauer, Fernando Alonso-Fernandez, Peter Wild, Josef Bigün, Andreas Uhl
A Ground Truth for Iris Segmentation. ICPR (2014)
Fernando Alonso-Fernandez, Josef Bigün
Eye detection by complex filtering for periocular recognition. IWBF (2014)
Fernando Alonso-Fernandez, Josef Bigün
Fake Iris Detection: A Comparison between Near-Infrared and Visible Images. SITIS (2014)
Anna Mikaelyan, Josef Bigün
Symmetry Assessment by Finite Expansion: application to forensic fingerprints. BIOSIG (2014)
Fernando Alonso-Fernandez, Josef Bigün
Best regions for periocular recognition with NIR and visible images. ICIP (2014)
Fernando Alonso-Fernandez, Josef Bigün
Exploting periocular and RGB information in fake iris detection. MIPRO (2014)
Anna Mikaelyan, Fernando Alonso-Fernandez, Josef Bigün
Periocular Recognition by Detection of Local Symmetry Patterns. SITIS (2014)
Anna Mikaelyan, Josef Bigün
SAFE features for matching fingermarks by neighbourhoods of single minutiae. ISCIT (2014)
Fernando Alonso-Fernandez, Josef Bigün
Quality factors affecting iris segmentation and matching. ICB (2013)
Fernando Alonso-Fernandez, Josef Bigün
Iris boundaries segmentation using the generalized structure tensor. A study on the effects of image degradation. BTAS (2012)
Anna Mikaelyan, Josef Bigün
Ground truth and evaluation for latent fingerprint matching. CVPR Workshops (2012)
Stefan M. Karlsson, Josef Bigün
Lip-motion events analysis and lip segmentation using optical flow. CVPR Workshops (2012)
Fernando Alonso-Fernandez, Josef Bigün
Periocular Recognition Using Retinotopic Sampling and Gabor Decomposition. ECCV Workshops (2) (2012)
Yaregal Assabie, Josef Bigün
Offline handwritten Amharic word recognition. Pattern Recognit. Lett. 32 (8) (2011)
Josef Bigün, Stefan M. Karlsson
Histogram of directions by the structure tensor. ISABEL (2011)
Massimo Tistarelli, Josef Bigün
Image and vision computing journal special issue on multimodal biometrics. Image Vis. Comput. 27 (3) (2009)

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Publication Activity (10 Years)

Top Topics

Top Venues

Josef Bigün