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This paper presents a method for segmenting iris images obtained from the deceased subjects, by training a deep convolutional neural network (DCNN) designed for the purpose of semantic segmentation. Post-mortem iris recognition has recently…

Computer Vision and Pattern Recognition · Computer Science 2018-07-12 Mateusz Trokielewicz , Adam Czajka

The lack of resolution has a negative impact on the performance of image-based biometrics. Many applications which are becoming ubiquitous in mobile devices do not operate in a controlled environment, and their performance significantly…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Fernando Alonso-Fernandez , Reuben A. Farrugia , Julian Fierrez , Josef Bigun

Generating iris images which look realistic is both an interesting and challenging problem. Most of the classical statistical models are not powerful enough to capture the complicated texture representation in iris images, and therefore…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Shervin Minaee , Amirali Abdolrashidi

Implicit neural representations (INRs) have gained prominence as a powerful paradigm in scene reconstruction and computer graphics, demonstrating remarkable results. By utilizing neural networks to parameterize data through implicit…

Image and Video Processing · Electrical Eng. & Systems 2023-08-01 Amirali Molaei , Amirhossein Aminimehr , Armin Tavakoli , Amirhossein Kazerouni , Bobby Azad , Reza Azad , Dorit Merhof

This paper presents a study devoted to recognizing horses by means of their iris and periocular features using deep convolutional neural networks (DCNNs). Identification of race horses is crucial for animal identity confirmation prior to…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Mateusz Trokielewicz , Mateusz Szadkowski

Synthesis of same-identity biometric iris images, both for existing and non-existing identities while preserving the identity across a wide range of pupil sizes, is complex due to the intricate iris muscle constriction mechanism, requiring…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Siamul Karim Khan , Patrick Tinsley , Mahsa Mitcheff , Patrick Flynn , Kevin W. Bowyer , Adam Czajka

The approximation and convergence properties of implicit neural representations (INRs) are known to be highly sensitive to parameter initialization strategies. While several data-driven initialization methods demonstrate significant…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Kushal Vyas , Alper Kayabasi , Daniel Kim , Vishwanath Saragadam , Ashok Veeraraghavan , Guha Balakrishnan

The iris can be considered as one of the most important biometric traits due to its high degree of uniqueness. Iris-based biometrics applications depend mainly on the iris segmentation whose suitability is not robust for different…

Computer Vision and Pattern Recognition · Computer Science 2019-01-21 Cides S. Bezerra , Rayson Laroca , Diego R. Lucio , Evair Severo , Lucas F. Oliveira , Alceu S. Britto , David Menotti

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

A large portion of iris images captured in real world scenarios are poor quality due to the uncontrolled environment and the non-cooperative subject. To ensure that the recognition algorithm is not affected by low-quality images,…

Image and Video Processing · Electrical Eng. & Systems 2020-09-29 Leyuan Wang , Kunbo Zhang , Min Ren , Yunlong Wang , Zhenan Sun

In this work, we design a fully complex-valued neural network for the task of iris recognition. Unlike the problem of general object recognition, where real-valued neural networks can be used to extract pertinent features, iris recognition…

Computer Vision and Pattern Recognition · Computer Science 2022-02-17 Kien Nguyen , Clinton Fookes , Sridha Sridharan , Arun Ross

Human Identity verification has always been an eye-catching goal in digital based security system. Authentication or identification systems developed using human characteristics such as face, finger print, hand geometry, iris, and voice are…

Image and Video Processing · Electrical Eng. & Systems 2020-02-11 Prajoy Podder , A. H. M Shahariar Parvez , Md. Mizanur Rahman , Tanvir Zaman Khan

Biometric presentation attack detection is gaining increasing attention. Users of mobile devices find it more convenient to unlock their smart applications with finger, face or iris recognition instead of passwords. In this paper, we survey…

Computer Vision and Pattern Recognition · Computer Science 2020-05-04 Yomna Safaa El-Din , Mohamed N. Moustafa , Hani Mahdi

Iris recognition is widely used in several fields such as mobile phones, financial transactions, identification cards, airport security, international border control, voter registration for living persons. However, the possibility of…

Image and Video Processing · Electrical Eng. & Systems 2024-08-08 Afzal Hossain , Tipu Sultan , Stephanie Schuckers

Iris recognition of living individuals is a mature biometric modality that has been adopted globally from governmental ID programs, border crossing, voter registration and de-duplication, to unlocking mobile phones. On the other hand, the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-02 Andrey Kuehlkamp , Aidan Boyd , Adam Czajka , Kevin Bowyer , Patrick Flynn , Dennis Chute , Eric Benjamin

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

Implicit Neural Representations (INRs) have revolutionized signal processing and computer vision by modeling signals as continuous, differentiable functions parameterized by neural networks. However, INRs are prone to the spectral bias…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Ali Haider , Muhammad Salman Ali , Maryam Qamar , Tahir Khalil , Soo Ye Kim , Jihyong Oh , Enzo Tartaglione , Sung-Ho Bae

Iris recognition is one of the most important biometric recognition method. This is because the iris texture provides many features such as freckles, coronas, stripes, furrows, crypts, etc. Those features are unique for different people and…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Shideh Homayon , Mahdi Salarian

Iris recognition has drawn a lot of attention since the mid-twentieth century. Among all biometric features, iris is known to possess a rich set of features. Different features have been used to perform iris recognition in the past. In this…

Computer Vision and Pattern Recognition · Computer Science 2015-07-09 Shervin Minaee , AmirAli Abdolrashidi , Yao Wang

Iris recognition systems transform an iris image into a feature vector. The seminal pipeline segments an image into iris and non-iris pixels, normalizes this region into a fixed-dimension rectangle, and extracts features which are stored…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Sohaib Ahmad , Christopher Geiger , Benjamin Fuller