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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

Iris recognition technology plays a critical role in biometric identification systems, but their performance can be affected by variations in iris pigmentation. In this work, we investigate the impact of iris pigmentation on the efficacy of…

Computer Vision and Pattern Recognition · Computer Science 2024-11-14 Geetanjali Sharma , Abhishek Tandon , Gaurav Jaswal , Aditya Nigam , Raghavendra Ramachandra

Smartphone-based iris recognition in the visible spectrum (VIS) remains difficult due to illumination variability, pigmentation differences, and the absence of standardized capture controls. This work presents a compact end-to-end pipeline…

Image and Video Processing · Electrical Eng. & Systems 2026-02-23 Naveenkumar G Venkataswamy , Yu Liu , Soumyabrata Dey , Stephanie Schuckers , Masudul H Imtiaz

In recent years, mobile Internet has accelerated the proliferation of smart mobile development. The mobile payment, mobile security and privacy protection have become the focus of widespread attention. Iris recognition becomes a…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Siming Zheng , Rahmita Wirza O. K. Rahmat , Fatimah Khalid , Nurul Amelina Nasharuddin

Subject matching performance in iris biometrics is contingent upon fast, high-quality iris segmentation. In many cases, iris biometrics acquisition equipment takes a number of images in sequence and combines the segmentation and matching…

Computer Vision and Pattern Recognition · Computer Science 2019-01-08 Jeffery Kinnison , Mateusz Trokielewicz , Camila Carballo , Adam Czajka , Walter Scheirer

Gender classification is attractive in a range of applications, including surveillance and monitoring, corporate profiling, and human-computer interaction. Individuals' identities may be gleaned from information about their gender, which is…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Basna Mohammed Salih Hasan , Ramadhan J. Mstafa

Deep neural networks for semantic segmentation rely on large-scale annotated datasets, leading to an annotation bottleneck that motivates few shot semantic segmentation (FSS) which aims to generalize to novel classes with minimal labeled…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Ourui Fu , Hangzhou He , Kaiwen Li , Xinliang Zhang , Lei Zhu , Shuang Zeng , Zhaoheng Xie , Yanye Lu

Background. Pre-operative risk assessments used in clinical practice are limited in their ability to identify risk for post-operative mortality. We hypothesize that electrocardiograms contain hidden risk markers that can help prognosticate…

Gabor kernels are widely accepted as dominant filters for iris recognition. In this work we investigate, given the current interest in neural networks, if Gabor kernels are the only family of functions performing best in iris recognition,…

Computer Vision and Pattern Recognition · Computer Science 2020-02-24 Aidan Boyd , Adam Czajka , Kevin Bowyer

Cataract is caused due to various factors such as age, trauma, genetics, smoking and substance consumption, and radiation. It is one of the major common ophthalmic diseases worldwide which can potentially affect iris-based biometric…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Aditya Lakra , Pavani Tripathi , Rohit Keshari , Mayank Vatsa , Richa Singh

Underlying cause of death coding from death certificates is a process that is nowadays undertaken mostly by humans with a potential assistance from expert systems such as the Iris software. It is as a consequence an expensive process that…

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

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

Deep learning techniques have successfully been employed in numerous computer vision tasks including image segmentation. The techniques have also been applied to medical image segmentation, one of the most critical tasks in computer-aided…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Titinunt Kitrungrotsakul , Iwamoto Yutaro , Lanfen Lin , Ruofeng Tong , Jingsong Li , Yen-Wei Chen

Automatic CT segmentation of proximal femur is crucial for the diagnosis and risk stratification of orthopedic diseases; however, current methods for the femur CT segmentation mainly rely on manual interactive segmentation, which is…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Yu Deng , Ling Wang , Chen Zhao , Shaojie Tang , Xiaoguang Cheng , Hong-Wen Deng , Weihua Zhou

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

Iris segmentation is a deterministic part of the iris recognition system. Unreliable segmentation of iris regions especially the limbic area is still the bottleneck problem, which impedes more accurate recognition. To make further efforts…

Computer Vision and Pattern Recognition · Computer Science 2021-11-19 Jianze Wei , Huaibo Huang , Muyi Sun , Yunlong Wang , Min Ren , Ran He , Zhenan Sun

We present a method combining affinity prediction with region agglomeration, which improves significantly upon the state of the art of neuron segmentation from electron microscopy (EM) in accuracy and scalability. Our method consists of a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Jan Funke , Fabian David Tschopp , William Grisaitis , Arlo Sheridan , Chandan Singh , Stephan Saalfeld , Srinivas C. Turaga

One of the major challenges in ocular biometrics is the cross-spectral scenario, i.e., how to match images acquired in different wavelengths (typically visible (VIS) against near-infrared (NIR)). This article designs and extensively…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Luiz A. Zanlorensi , Diego R. Lucio , Alceu S. Britto , Hugo Proença , David Menotti

Medical images used in clinical practice are heterogeneous and not the same quality as scans studied in academic research. Preprocessing breaks down in extreme cases when anatomy, artifacts, or imaging parameters are unusual or protocols…

Image and Video Processing · Electrical Eng. & Systems 2022-08-31 Mostafa Mehdipour Ghazi , Mads Nielsen
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