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A new approach in iris recognition based on Circular Fuzzy Iris Segmentation (CFIS) and Gabor Analytic Iris Texture Binary Encoder (GAITBE) is proposed and tested here. CFIS procedure is designed to guarantee that similar iris segments will…

Computer Vision and Pattern Recognition · Computer Science 2011-07-15 Nicolaie Popescu-Bodorin

This paper presents a texture aware end-to-end trainable iris recognition system, specifically designed for datasets like iris having limited training data. We build upon our previous stagewise learning framework with certain key…

Computer Vision and Pattern Recognition · Computer Science 2022-02-16 Manashi Chakraborty , Aritri Chakraborty , Prabir Kumar Biswas , Pabitra Mitra

Acquiring face images of sufficiently high quality is important for online ID and travel document issuance applications using face recognition systems (FRS). Low-quality, manipulated (intentionally or unintentionally), or distorted images…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Wassim Kabbani , Tristan Le Pessot , Kiran Raja , Raghavendra Ramachandra , Christoph Busch

In the last few years, face morphing has been shown to be a complex challenge for Face Recognition Systems (FRS). Thus, the evaluation of other biometric modalities such as fingerprint, iris, and others must be explored and evaluated to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Juan E. Tapia , Sebastian Gonzalez , Daniel Benalcazar , Christoph Busch

Soft biometric modalities have shown their utility in different applications including reducing the search space significantly. This leads to improved recognition performance, reduced computation time, and faster processing of test samples.…

Computer Vision and Pattern Recognition · Computer Science 2017-10-10 Maneet Singh , Shruti Nagpal , Mayank Vatsa , Richa Singh , Afzel Noore , Angshul Majumdar

Fingerprint recognition remains one of the most reliable biometric technologies due to its high accuracy and uniqueness. Traditional systems rely on contact-based scanners, which are prone to issues such as image degradation from surface…

Computer Vision and Pattern Recognition · Computer Science 2025-02-10 S Sreehari , Dilavar P D , S M Anzar , Alavikunhu Panthakkan , Saad Ali Amin

Color vision is essential for human visual perception, but its impact on machine perception is still underexplored. There has been an intensified demand for understanding its role in machine perception for safety-critical tasks such as…

Computer Vision and Pattern Recognition · Computer Science 2025-02-14 Ming-Chang Chiu , Yingfei Wang , Derrick Eui Gyu Kim , Pin-Yu Chen , Xuezhe Ma

Face biometrics are playing a key role in making modern smart city applications more secure and usable. Commonly, the recognition threshold of a face recognition system is adjusted based on the degree of security for the considered use…

Computer Vision and Pattern Recognition · Computer Science 2022-10-03 Andrea Atzori , Gianni Fenu , Mirko Marras

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

In this contribution, the vulnerabilities of iris-based recognition systems to direct attacks are studied. A database of fake iris images has been created from real iris of the BioSec baseline database. Iris images are printed using a…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Virginia Ruiz-Albacete , Pedro Tome-Gonzalez , Fernando Alonso-Fernandez , Javier Galbally , Julian Fierrez , Javier Ortega-Garcia

The main topic discussed in this paper is how to use intelligence for biometric decision defuzzification. A neural training model is proposed and tested here as a possible solution for dealing with natural fuzzification that appears between…

Neural and Evolutionary Computing · Computer Science 2011-11-10 N. Popescu-Bodorin , V. E. Balas , I. M. Motoc

Even though a few initial works have shown on small sets of data some level of bias in the performance of fingerprint recognition technology with respect to certain demographic groups, there is still not sufficient evidence to understand…

Computer Vision and Pattern Recognition · Computer Science 2024-10-07 Javier Galbally , Aleksandrs Cepilovs , Ramon Blanco-Gonzalo , Gillian Ormiston , Oscar Miguel-Hurtado , Istvan Sz. Racz

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

Automated Face Recognition Systems (FRSs), developed using deep learning models, are deployed worldwide for identity verification and facial attribute analysis. The performance of these models is determined by a complex interdependence…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Siddharth D Jaiswal , Sagnik Basu , Sandipan Sikdar , Animesh Mukherjee

This paper proposes an efficient three fold stratified SIFT matching for iris recognition. The objective is to filter wrongly paired conventional SIFT matches. In Strata I, the keypoints from gallery and probe iris images are paired using…

Computer Vision and Pattern Recognition · Computer Science 2013-01-08 Sambit Bakshi , Hunny Mehrotra , Banshidhar Majhi

Dataset Distillation has emerged as a technique for compressing large datasets into smaller synthetic counterparts, facilitating downstream training tasks. In this paper, we study the impact of bias inside the original dataset on the…

Machine Learning · Computer Science 2024-07-11 Justin Cui , Ruochen Wang , Yuanhao Xiong , Cho-Jui Hsieh

This work explores the biases in learning processes based on deep neural network architectures. We analyze how bias affects deep learning processes through a toy example using the MNIST database and a case study in gender detection from…

Computer Vision and Pattern Recognition · Computer Science 2020-07-23 Ignacio Serna , Alejandro Peña , Aythami Morales , Julian Fierrez

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

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

Deep learning-based models have been very successful in achieving state-of-the-art results in many of the computer vision, speech recognition, and natural language processing tasks in the last few years. These models seem a natural fit for…

Computer Vision and Pattern Recognition · Computer Science 2021-02-10 Shervin Minaee , Amirali Abdolrashidi , Hang Su , Mohammed Bennamoun , David Zhang