In the modern world, a reliable personal identification infrastructure is required to control the access in order to secure areas or materials. Conventional methods of recognizing the identity of a person by using passwords or cards are not altogether reliable, because they can be forgotten, stolen, disclosable, or transferable (Zhang, 2000). Biometric technology, which is based on physical and...

Iris image quality assessment is an important part of iris recognition system because the qualities of iris images would largely influence the recognition results. In this paper, we analyze and compare several representative quality assessment methods, and then propose an effective method based on Laplacian of Gaussian operator for iris image assessment. Through computer simulations of several ...

by Karen P. Hollingsworth Iris biometrics is used in a number of different applications, such as frequent flyer programs, identification of prisoners, and border control in the United Arab Emirates. However, governments interested in using iris biometrics have still found difficulties using it on large populations. Further improvements in iris recognition are required in order to enable this te...

This paper presents a comprehensive study of postmortem human iris recognition carried out for 1,200 nearinfrared and 1,787 visible-light samples collected from 37 deceased individuals kept in the mortuary conditions. We used four independent iris recognition methods (three commercial and one academic) to analyze genuine and impostor comparison scores and check the dynamics of iris quality deca...

Biometric systems are used for the automatic recognition of a person based on the unique characteristics or features possessed by that person. Many biometric systems are available now–a-days. Iris Recognition System is one of the most consistent and reliable biometric identification system available. Iris Recognition is the recognition of an individual based on iris features. Several methods ha...

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 segmentation methods often involve an exhaustive search of a large parameter space, which is time-consuming and sensitive to noise. To address these problems, this paper presents a novel algorithm for accurate and ...

BACKGROUND Tuberculosis-associated immune reconstitution inflammatory syndrome (TB-IRIS) is an inflammatory complication in HIV-TB co-infected patients receiving antiretroviral therapy (ART). The role of disturbed T cell reconstitution in TB-IRIS is not well understood. We investigated T cell activation and maturation profiles in patients who developed TB-IRIS at different intervals during ART....

A biometric system is used for recognition of individual based on their physical or personal characteristics. Biometric system includes face recognition, fingerprint recognition, voice recognition , the Iris recognition etc. various study has shown that iris recognition is the most efficient biometrics. hence the work presented here involved designing a user friendly GUI based efficient and opt...

An iris recognition system is proposed in this paper. This system implements (a) the combination of proposed black hole search method and integro-differential operators for iris localization, (b) one-dimensional fractal analysis for feature extraction and (c) dissimilarity operator for matching. The black hole search method achieves 100% accuracy of pupil detection for both CASIA and MMU Iris d...