In this work a study of multispectral tools in color measurement of irises, prostheses and cosmetic colored contact lenses is performed. With the statistical analysis of CIELa*b* values, the CIEDE2000 color differences and color gamuts, the samples are classified in three major groups: brown, blue and green. In the same way, the irises color reproduction made by prostheses and contact lenses is...

Biometrics plays a vital role for an extensive array of highly secure identification and personal verification systems. Iris Recognition is the recognition of an individual based on iris features. It is regarded as the most promising biometric identification system available. In this paper, the iris recognition is applied on UBIRIS database. Image is segmented using circular Hough transform, th...

Cosmetic alteration of the iris color has long intrigued individuals. This has been accomplished with cosmetic contact lenses and most recently with intraocular artificial iris implants. We report 2 cases of uveitis, glaucoma, and corneal decompensation in women who underwent bi la tera l s imultaneous implantation of a non–US Food and Drug Administration–approved cosmetic iris implant (NewColo...

Ocular prostheses are important determinants of their users' aesthetic recovery and self-esteem. Because of use, ocular prostheses longevity is strongly affected by instability of the iris color due to polymerization. The goal of this study is to examine how the color of the artificial iris button is affected by different techniques of artificial wear and by the application of varnish following...

Multispectral Iris Recognition Analysis: Techniques and Evaluation by Christopher K. Boyce Master of Science in Electrical Engineering West Virginia University Lawrence Hornak, Ph.D., Chair Arun Ross, Ph.D. (Co-chair) This thesis explores the benefits of using multispectral iris information acquired using a narrow-band multispectral imaging system. Commercial iris recognition systems typically ...

In this paper we propose a new biometric-based Iris feature extraction system. The system automatically acquires the biometric data in numerical format (Iris Images) by using a set of properly located sensors. We are considering camera as a high quality sensor. Iris Images are typically color images that are processed to gray scale images. Then the Feature extraction algorithm is used to detect...

0167-8655/$ see front matter 2011 Elsevier B.V. A doi:10.1016/j.patrec.2011.08.009 ⇑ Corresponding author. Tel.: +86 10 82614515; fax E-mail addresses: [email protected] (T. Tan), xbzh [email protected] (Z. Sun), [email protected] ( Noisy iris recognition under visible lighting has recently drawn much attention. This paper proposes an effective method for visible light iris image matchin...