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Iris Identification

Iris Identification. By Rahad Miah. Table Of Contents. Brief Definition. Iris identification is a method of biometric authentication that uses pattern-recognition techniques based on high-resolution images of the irides of an individual's eyes. Pictures of the Iris.

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Iris Identification

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  1. Iris Identification By RahadMiah

  2. Table Of Contents

  3. Brief Definition Iris identification is a method of biometric authentication that uses pattern-recognition techniques based on high-resolution images of the irides of an individual's eyes

  4. Pictures of the Iris

  5. How it Works(general overview) • Iris identification technology uses a digital camera in combination with software that performs the following functions: • a) Acquires an image of the eye, which includes the iris • b) Defines the boundaries of the iris • c) Analyzes image data • d) Generates pattern data • e) Stores the pattern data • f) When recognition is desired, another image is taken, and pattern data from that image is matched to the stored data.

  6. Iris Identification Process (in detail) • iris recognition uses camera technology, with subtle infrared illumination to create images of the detail-rich, intricate structures of the iris. • images are converted into digital templates • these images provide mathematical representations of the iris that yield unambiguous positive identification of an individual. • An iris-identification algorithm first has to identify the approximately concentric circular outer boundaries of the iris and the pupil in a photo of an eye. • The set of pixels covering only the iris is then transformed into a bit pattern that preserves the information that is essential for a statistically meaningful comparison between two iris images. • These mathematical methods closely resemble those of modern lossy compression algorithms for photographic images. • These templates are then stored as a unique value in the database. • When recognition is desired, another image is taken, and pattern data from that image is matched to the stored value template in the database.

  7. Pros • Iris identification is almost impossible to fake since the iris is a physical attribute unlike ID cards • Stronger form of security than passwords because you can guess a password and access data, but data using iris identification is impossible to access. • Iris patterns possess a high degree of randomness • One of the best forms of biometric since direct contact of equipment is not needed which prevents spread of germs. • Stability – the identification can used for a lifetime.

  8. Cons • Very costly equipment (camera systems are expensive) • Some believe it’s invasive • Data can be hacked by hackers • Obscured by eyelashes, lenses, reflections • * mainly not in use due to high cost.

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