NIR iris challenge evaluation in non-cooperative environments: Segmentation and localization

C Wang, Y Wang, K Zhang… - … joint conference on …, 2021 - ieeexplore.ieee.org
For iris recognition in non-cooperative environments, iris segmentation has been regarded
as the first most important challenge still open to the biometric community, affecting all …

Iris segmentation for visible wavelength and near infrared eye images

F Jan, I Usman - Optik, 2014 - Elsevier
State-of-the-art iris segmentation algorithms exhibit poor performance for non-ideal data,
which is mainly because of the noise such as low contrast, non-uniform illumination …

Boosting Multi-modal Ocular Recognition via Spatial Feature Reconstruction and Unsupervised Image Quality Estimation

Z Yan, Y Wang, K Zhang, Z Sun, L He - Machine Intelligence Research, 2024 - Springer
In the daily application of an iris-recognition-at-a-distance (IAAD) system, many ocular
images of low quality are acquired. As the iris part of these images is often not qualified for …

Point spread function engineering for iris recognition system design

A Ashok, MA Neifeld - Applied optics, 2010 - opg.optica.org
Undersampling in the detector array degrades the performance of iris-recognition imaging
systems. We find that an undersampling of 8× 8 reduces the iris-recognition performance by …

Advances in cross-spectral iris recognition using integrated gradientface-based normalization

M Oktiana, K Saddami, F Arnia, Y Away, K Hirai… - IEEE …, 2019 - ieeexplore.ieee.org
Cross-spectral iris recognition represents the ability of the system to identify the iris images
acquired in different electromagnetic spectrums. An iris captured in the near-infrared …

Iris segmentation in uncooperative and unconstrained environments: state-of-the-art, datasets and future research directions

H Fathee, S Sahmoud - Digital Signal Processing, 2021 - Elsevier
Most of the classical iris recognition systems require cooperation from users and assume
ideal conditions during iris image acquisition. In uncooperative and unconstrained …

A study of how gaze angle affects the performance of iris recognition

M Karakaya - Pattern Recognition Letters, 2016 - Elsevier
In traditional iris recognition systems, majority of researches improves the recognition
performance for frontal images by ignoring the challenging issues including corneal …

[HTML][HTML] Robust and Swift Iris Recognition at distance based on novel pupil segmentation

AK Nsaif, SHM Ali, AK Nseaf, KN Jassim… - Journal of King Saud …, 2022 - Elsevier
One of the most common and successful biometric frameworks is iris recognition, which has
yielded promising results in systems of access control and identity authentication. Recent …

Toward accurate and fast iris segmentation for iris biometrics

Z He, T Tan, Z Sun, X Qiu - IEEE transactions on pattern …, 2008 - ieeexplore.ieee.org
Iris segmentation is an essential module in iris recognition because it defines the effective
image region used for subsequent processing such as feature extraction. Traditional iris …

Convolutional neural networks for ocular smartphone-based biometrics

K Ahuja, R Islam, FA Barbhuiya, K Dey - Pattern Recognition Letters, 2017 - Elsevier
Ocular biometrics in the visible spectrum has emerged as an area of significant research
activity. In this paper, we propose a hybrid convolution-based model, for verifying a pair of …