نتایج جستجو برای: iris color

تعداد نتایج: 133086  

2009
Yung-hui Li Marios Savvides

Iris masks are essential in iris recognition. The purpose of having a good iris mask is to indicate which part of iris texture map is useful and which part is occluded or contains noisy artifacts such as eyelashes, eyelids and specular re ections. The accuracy of the iris mask is extremely important. The performance of the iris recognition system will decrease dramatically when iris mask is ina...

2013
Osama Ouda

The fuzzy commitment scheme is one of most popular biometric cryptosystems that aim at securing cryptographic keys using biometrics. Because of the high recognition accuracy exhibited by the iris, iris-based fuzzy commitment schemes, among other modalities, provide the most practical performance rates. Unfortunately, existing iris-based fuzzy commitment schemes do not incorporate noise masks, g...

2013
Hassan Hashemi Sasan Moghimi

Purpose: To demonstrate an approach to the problems of cataract surgery in extensive iridoschisis Methods: Four eyes of 2 patients with extensive iridoschisis had cataract surgery by the same surgeon using the techniques that resembled techniques for phacoemulsification in intraoperative floppy iris syndrome (IFIS). We used low flow parameters on phacoemulsification, used super-cohesive ophthal...

Journal: :Asian Journal of Ophthalmology 1970

Journal: :Archives of Ophthalmology 2000

2012
Qichuan Tian Hua Qu Lanfang Zhang Ruishan Zong

Personal identification based on biometrics technology is a trend in the future. Traditional approaches, for example, keys, ID cards, username and password, are neither satisfactory nor reliable enough in many security fields, biometrics authorizations based on face, iris, fingerprint have become a hot research filed. In those methods, iris recognition is regarded as a high accuracy verificatio...

2012
Pankaj Agarkar

The Iris recognition has become as one of the promising biometrics feature in human identification system. In addition to conventional IRIS capture challenges, IRIS code searching and similarity matching of IRIS code has also become a challenging task in IRIS code VLOB (Very Large Object database). Hamming Distance (HD), a sequential similarity matching technique, proves in-efficient for VLOB I...

Journal: :Agrarnaâ nauka 2021

Relevance . Introduction and variety study of flower ornamental crops is one the main tasks botanical gardens, which aims to expand promising assortment for domestic floriculture. Results In period from 2018 2020 varieties hybrid iris ( Iris x hybrida hort. ) garden group “tall bearded” were studied in Stavropol Botanical Garden. The presented 13 belong foreign selection. Basically, are charact...

Journal: :Computers, materials & continua 2023

Nowadays, there is tremendous growth in biometric authentication and cybersecurity applications. Thus, the efficient way of storing securing personal patterns mandatory most governmental private sectors. Therefore, designing implementing robust security algorithms for users’ biometrics still a hot research area to be investigated. This work presents powerful system (BSS) protect different modal...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده مهندسی شیمی 1393

هدف از این تحقیق بررسی کارایی فرایند الکتروفنتون و بهینه سازی پارامترهای موثر بر فرایند به کمک طراحی آماری به منظور تصفیه پساب شرکت پتروشیمی شازند میباشد.در این تحقیق تاثیر پارامترهای : زمان واکنش ، چگالی جریان، ph پساب ، نسبت (?ml h?_2 o_2)/( lit pw) و نسبت مولی (mol h_2 o_2)/(mol fe^(2+) ) بر حذف cod و color از پساب پتروشیمی تحت فرایند الکتروفنتون( با الکترود های آهن و آلومینیوم به طور جداگان...

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