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Iris recognition is a reliable personal identification method but there is still much room to improve its accuracy especially in less-constrained situations. For example, free movement of head pose may cause large rotation difference…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Min Ren , Caiyong Wang , Yunlong Wang , Zhenan Sun , Tieniu Tan

The extraction of consistent and identifiable features from an image of the human iris is known as iris recognition. Identifying which pixels belong to the iris, known as segmentation, is the first stage of iris recognition. Errors in…

Computer Vision and Pattern Recognition · Computer Science 2018-12-21 Sohaib Ahmad , Benjamin Fuller

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

Iris recognition systems are a mature technology that is widely used throughout the world. In identification (as opposed to verification) mode, an iris to be recognized is typically matched against all N enrolled irises. This is the classic…

Computer Vision and Pattern Recognition · Computer Science 2017-02-07 Andrey Kuehlkamp , Kevin W. Bowyer

Iris recognition is considered as one of the best biometric methods used for human identification and verification, this is because of its unique features that differ from one person to another, and its importance in the security field.…

Computer Vision and Pattern Recognition · Computer Science 2011-11-08 M. Y. Shams , M. Z. Rashad , O. Nomir , R. M. El-Awady

The use of the iris and periocular region as biometric traits has been extensively investigated, mainly due to the singularity of the iris features and the use of the periocular region when the image resolution is not sufficient to extract…

Computer Vision and Pattern Recognition · Computer Science 2022-02-07 Luiz A. Zanlorensi , Rayson Laroca , Eduardo Luz , Alceu S. Britto , Luiz S. Oliveira , David Menotti

For distant iris recognition, a long focal length lens is generally used to ensure the resolution ofiris images, which reduces the depth of field and leads to potential defocus blur. To accommodate users at different distances, it is…

Computer Vision and Pattern Recognition · Computer Science 2021-06-30 Leyuan Wang , Kunbo Zhang , Yunlong Wang , Zhenan Sun

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

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

The distinctiveness of the human iris has been measured by first extracting a set of features from the iris, an encoding, and then comparing these encoded feature sets to determine how distinct they are from one another. For example, John…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 J. Michael Rozmus

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

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

Despite the rise of deep learning in numerous areas of computer vision and image processing, iris recognition has not benefited considerably from these trends so far. Most of the existing research on deep iris recognition is focused on new…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Juš Lozej , Dejan Štepec , Vitomir Štruc , Peter Peer

The lack of resolution has a negative impact on the performance of image-based biometrics. While many generic super-resolution methods have been proposed to restore low-resolution images, they usually aim to enhance their visual appearance.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 F. Alonso-Fernandez , R. A. Farrugia , J. Bigun , J. Fierrez , E. Gonzalez-Sosa

Iris recognition is widely acknowledged for its exceptional accuracy in biometric authentication, traditionally relying on near-infrared (NIR) imaging. Recently, visible spectrum (VIS) imaging via accessible smartphone cameras has been…

Image and Video Processing · Electrical Eng. & Systems 2024-12-18 Naveenkumar G Venkataswamy , Yu Liu , Surendra Singh , Soumyabrata Dey , Stephanie Schuckers , Masudul H Imtiaz

This paper proposes two new open-source iris recognition algorithms, providing both Python and IREX-compliant C++ implementations to be submitted to the official IREX X program. This work has two primary goals: (a) to conduct the first-ever…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Siamul Karim Khan , Patrick J. Flynn , 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

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. The authors will examine whether the segmentation accuracy, based on…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Heinz Hofbauer , Fernando Alonso-Fernandez , Josef Bigun , Andreas Uhl

Image-based biometrics can aid law enforcement in various aspects, for example in iris, fingerprint and soft-biometric recognition. A critical precondition for recognition is the availability of sufficient biometric information in images.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Sandra Bergmann , Denise Moussa , Christian Riess

This paper presents a database of iris images collected from disease affected eyes and an analysis related to the influence of ocular diseases on iris recognition reliability. For that purpose we have collected a database of iris images…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Mateusz Trokielewicz , Adam Czajka , Piotr Maciejewicz