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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

Visual object localization is the key step in a series of object detection tasks. In the literature, high localization accuracy is achieved with the mainstream strongly supervised frameworks. However, such methods require object-level…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Yi-Geng Hong , Hui-Chu Xiao , Wan-Lei Zhao

We explore techniques for eye gaze estimation using machine learning. Eye gaze estimation is a common problem for various behavior analysis and human-computer interfaces. The purpose of this work is to discuss various model types for eye…

Computer Vision and Pattern Recognition · Computer Science 2022-08-01 Aveena Kottwani , Ayush Kumar

This research project addresses the challenge of accurately tracking eye movements during specific events by leveraging previous research. Given the rapid movements of human eyes, which can reach speeds of 300{\deg}/s, precise eye tracking…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Chirag Seth , Divya Naiken , Keyan Lin

We present a deep learning method for accurately localizing the center of a single corneal reflection (CR) in an eye image. Unlike previous approaches, we use a convolutional neural network (CNN) that was trained solely using simulated…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Sean Anthony Byrne , Marcus Nyström , Virmarie Maquiling , Enkelejda Kasneci , Diederick C. Niehorster

In this paper, we are interested in iris biometric applications. More precisely, our contribution consists in designing both a pupil detection and a tracking procedure from video sequences acquired by low-cost webcams. The novelty of our…

Image and Video Processing · Electrical Eng. & Systems 2020-02-27 Nedra Benletaief , Amel Benazza-Benyahia , Stephane Derrode

Current research in iris recognition is moving towards enabling more relaxed acquisition conditions. This has effects on the quality of acquired images, with low resolution being a predominant issue. Here, we evaluate a super-resolution…

Computer Vision and Pattern Recognition · Computer Science 2022-10-19 Fernando Alonso-Fernandez , Reuben A. Farrugia , Josef Bigun

Ellipse fitting, an essential component in pupil or iris tracking based video oculography, is performed on previously segmented eye parts generated using various computer vision techniques. Several factors, such as occlusions due to eyelid…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Rakshit S. Kothari , Aayush K. Chaudhary , Reynold J. Bailey , Jeff B. Pelz , Gabriel J. Diaz

Automated estimation of the allocation of a driver's visual attention may be a critical component of future Advanced Driver Assistance Systems. In theory, vision-based tracking of the eye can provide a good estimate of gaze location. In…

Computer Vision and Pattern Recognition · Computer Science 2016-03-02 Lex Fridman , Philipp Langhans , Joonbum Lee , Bryan Reimer

Biometric technologies are the foundation of personal identification systems. It provides an identification based on a unique feature possessed by the individual. This paper provides a walkthrough for image acquisition, segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2011-11-23 S. Nithyanandam , K. S. Gayathri , P. L. K. Priyadarshini

Globally, cataract is a common eye disease and one of the leading causes of blindness and vision impairment. The traditional process of detecting cataracts involves eye examination using a slit-lamp microscope or ophthalmoscope by an…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Pavani Tripathi , Yasmeena Akhter , Mahapara Khurshid , Aditya Lakra , Rohit Keshari , Mayank Vatsa , Richa Singh

Retinal image-based eye tracking is widely used in ophthalmic imaging and vision science, and is a promising path to deliver higher gaze accuracy than the pupil- and cornea-based approaches commonly used in modern AR/VR devices.…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Bo Wen , Dillon Lohr , Yatong An , Pushkar Anand , Alexander Fix , Ruobing Qian , Catherine A. Fromm , Yimin Ding , Truong Nguyen , Mohamed El-Haddad , Francesco La Rocca

This manuscript investigates and proposes a visual gaze tracker that tackles the problem using only an ordinary web camera and no prior knowledge in any sense (scene set-up, camera intrinsic and/or extrinsic parameters). The tracker we…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Kalin Stefanov

Iris-based identification systems are among the most popular approaches for person identification. Such systems require good-quality segmentation modules that ideally identify the regions for different eye components. This paper introduces…

Computer Vision and Pattern Recognition · Computer Science 2022-10-03 Wiktor Lazarski , Maciej Zieba , Tanguy Jeanneau , Tobias Zillig , Christian Brendel

The selection of the optimal feature subset and the classification has become an important issue in the field of iris recognition. In this paper we propose several methods for iris feature subset selection and vector creation. The…

Computer Vision and Pattern Recognition · Computer Science 2009-06-29 Amir Azizi , Hamid Reza Pourreza

We propose a new iris presentation attack detection method using three-dimensional features of an observed iris region estimated by photometric stereo. Our implementation uses a pair of iris images acquired by a common commercial iris…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Adam Czajka , Zhaoyuan Fang , Kevin W. Bowyer

We propose a new cascaded regressor for eye center detection. Previous methods start from a face or an eye detector and use either advanced features or powerful regressors for eye center localization, but not both. Instead, we detect the…

Computer Vision and Pattern Recognition · Computer Science 2017-12-11 Alex Levinshtein , Edmund Phung , Parham Aarabi

Eye tracking has become increasingly important in virtual and augmented reality applications; however, the current gaze accuracy falls short of meeting the requirements for spatial computing. We designed a gaze collection framework and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Xiaoyin Yang

Databases play an important role in cyber world. It provides authenticity across the globe to the legitimate user. Biometrics is another important tool which recognizes humans using their physical statistics. Biometrics system requires…

Computer Science and Game Theory · Computer Science 2012-07-13 Adnan Alam Khan , Safeeullah Soomro , Irfan Hyder

To satisfy the rigorous requirements of precise edge detection in critical high-accuracy measurements, this article proposes a series of efficient approaches for localizing subpixel edge. In contrast to the fitting based methods, which…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Yingyuan Yang , Guoyuan Liang , Xianwen Wang , Kaiming Wang , Can Wang , Xinyu Wu