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report on Iris scanning

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report on Iris scanning

Postby shirisha » Sun Jan 22, 2012 1:07 pm

:( sir please send me the report on Iris scanning.I have hardly 4 days to give my seminar.please send 2 my email id: and i am very thankful to u. :D
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Re: report on Iris scanning

Postby Prasanth » Sun Jan 22, 2012 5:36 pm

Iris identification technology is a tremendously accurate biometric. Iris recognition leverages the unique features of the human iris to provide an unmatched identification technology. So accurate are the algorithms used in iris recognition that the entire planet could be enrolled in an iris database with only a small chance of false acceptance or false rejection. The technology addresses the FTE (Failure to Enroll) problems which lessen the effectiveness of other biometrics. Only the iris recognition technology can be used effectively and efficiently in large scale identification implementations. The tremendous accuracy of iris recognition allows it, in many ways, to stand apart from other biometric technologies

The word IRIS dates from classical times (a rainbow). The iris is a Protective internal organ of the eye. It is easily visible from yards away as a colored disk, behind the clear protective window of the cornea, surrounded by the white tissue of the eve. It is the only internal organ of the body normally visible externally. It is a thin diaphragm stretching across the anterior portion of the eye and supported by lens. This support gives it the shape of a truncated cone in three dimensions. At its base the eye is attached to the eye’s ciliary body. At the opposite end it opens into a pupil. The cornea and the aqueous humor in front of the iris protect it from scratches and dirt, the iris is installed in its own casing. It is a multi layered structure. It has a pigmented layer, which forms a coloring that surrounds the pupil of the eye. One feature of this pupil is that it dilates or contracts in accordance with variation in light intensity.

The human iris begins to form during the third month of gestation. The structures creating its distinctive pattern are completed by the eighth month of gestation hut pigmentation continues in the first years after birth. The layers of the iris have both ectodermic and embryological origin, consisting of: a darkly pigmented epithelium, pupillary dilator and sphincter muscles, heavily vascularized stroma and an anterior layer chromataphores with a genetically determined density of melanin pigment granules. The combined effect is a visible pattern displaying various distinct features such as arching ligaments, crypts, ridges and zigzag collaratte. Iris color is determined mainly by the density of the stroma and its melanin content, with blue irises resulting from an absence of pigment: long wavelengths are penetrates and is absorbed by the pigment epithelium, while shorter wavelengths are reflected and scattered by the stroma. The heritability and ethnographic diversity of iris color have long been studied. But until the present research, little attention had been paid to the achromatic pattern complexity and textural variability of the iris among individuals.
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Re: report on Iris scanning

Postby CMVerma » Mon Aug 22, 2016 7:16 am

sir please send me ppt on
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