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Biometric systems represent valid solutions in tasks like user authentication and verification, since they are able to analyze physical and behavioural features with high precision. However, especially when physical biometrics are used, as…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Francesco Zola , Jose Alvaro Fernandez-Carrasco , Jan Lukas Bruse , Mikel Galar , Zeno Geradts

This paper proposes a deep feature extractor for iris recognition at arbitrary resolutions. Resolution degradation reduces the recognition performance of deep learning models trained by high-resolution images. Using various-resolution…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Yuho Shoji , Yuka Ogino , Takahiro Toizumi , Atsushi Ito

Face liveness detection has become a widely used technique with a growing importance in various authentication scenarios to withstand spoofing attacks. Existing methods that perform liveness detection generally focus on designing…

Cryptography and Security · Computer Science 2018-10-09 Meng Shen , Zelin Liao , Liehuang Zhu , Rashid Mijumbi , Xiaojiang Du , Jiankun Hu

Periocular biometrics has been established as an independent modality due to concerns on the performance of iris or face systems in uncontrolled conditions. Periocular refers to the facial region in the eye vicinity, including eyelids,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-27 Fernando Alonso-Fernandez , Josef Bigun

The gaze behavior of virtual avatars is critical to social presence and perceived eye contact during social interactions in Virtual Reality. Virtual Reality headsets are being designed with integrated eye tracking to enable compelling…

Human-Computer Interaction · Computer Science 2020-03-10 Brendan John , Sophie Jörg , Sanjeev Koppal , Eakta Jain

Place recognition is a challenging problem in mobile robotics, especially in unstructured environments or under viewpoint and illumination changes. Most LiDAR-based methods rely on geometrical features to overcome such challenges, as…

Robotics · Computer Science 2018-12-03 Jiadong Guo , Paulo V. K. Borges , Chanoh Park , Abel Gawel

Effective learning of asymmetric and local features in images and other data observed on multi-dimensional grids is a challenging objective critical for a wide range of image processing applications involving biomedical and natural images.…

Methodology · Statistics 2022-10-06 Meng Li , Li Ma

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. Concurrently, a great variety of single image…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Eduardo Ribeiro , Andreas Uhl , Fernando Alonso-Fernandez

This paper proposes the first, known to us, open source presentation attack detection (PAD) solution to distinguish between authentic iris images (possibly wearing clear contact lenses) and irises with textured contact lenses. This software…

Computer Vision and Pattern Recognition · Computer Science 2019-05-10 Joseph McGrath , Kevin W. Bowyer , Adam Czajka

The security of biometric authentication is increasingly critical as digital identity systems expand. Iris recognition offers high reliability due to its distinctive and stable texture patterns. Recent progress in deep learning, especially…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Moh Imam Faiz , Aviv Yuniar Rahman , Rangga Pahlevi Putra

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…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Kien Nguyen , Hugo Proença , Fernando Alonso-Fernandez

Iris presentation attack detection (PAD) plays a vital role in iris recognition systems. Most existing CNN-based iris PAD solutions 1) perform only binary label supervision during the training of CNNs, serving global information learning…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 Meiling Fang , Naser Damer , Fadi Boutros , Florian Kirchbuchner , Arjan Kuijper

In the paper will be presented a safety system based on iridology. The results suggest a new scenario where the security problem in supervised and unsupervised areas can be treat with the present system and the iris image recognition.

Computer Vision and Pattern Recognition · Computer Science 2007-05-23 G. Iovane , F. S. Tortoriello

Iris recognition technology has attracted an increasing interest in the last decades in which we have witnessed a migration from research laboratories to real world applications. The deployment of this technology raises questions about the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-25 Aythami Morales , Julian Fierrez , Javier Galbally , Marta Gomez-Barrero

With the increasing imaging and processing capabilities of today's mobile devices, user authentication using iris biometrics has become feasible. However, as the acquisition conditions become more unconstrained and as image quality is…

Image and Video Processing · Electrical Eng. & Systems 2018-07-04 Shabab Bazrafkan , Shejin Thavalengal , Peter Corcoran

We address the fundamental performance issues of template protection (TP) for iris verification. We base our work on the popular Bloom-Filter templates protection & address the key challenges like sub-optimal performance and low…

Computer Vision and Pattern Recognition · Computer Science 2020-01-16 Kiran B. Raja , R. Raghavendra , Sushma Venkatesh , Christoph Busch

Natural (such as lunar) occultations have long been used to study sources on small angular scales, while coronographs have been used to study high contrast sources. We propose launching the Improved Resolution and Image Selection (IRIS)…

Astrophysics · Physics 2016-08-30 Glenn D. Starkman , Craig J Copi

Iris recognition is widely recognized as one of the most accurate biometric modalities. However, its growing deployment in real-world applications raises significant concerns regarding its vulnerability to Presentation Attacks (PAs).…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Raghavendra Ramachandra , Sushma Venkatesh

Iris recognition systems are vulnerable to the presentation attacks, such as textured contact lenses or printed images. In this paper, we propose a lightweight framework to detect iris presentation attacks by extracting multiple…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Meiling Fang , Naser Damer , Florian Kirchbuchner , Arjan Kuijper

Post-mortem iris recognition is an emerging application of iris-based human identification in a forensic setup. One factor that may be useful in conditioning iris recognition methods is the tissue decomposition level, which is correlated…

Computer Vision and Pattern Recognition · Computer Science 2024-11-14 Rasel Ahmed Bhuiyan , Adam Czajka