Iris Recognition Technique
Iris Scanning:
Iris scanning is a newer technology than retina scanning. The iris consists of the multicolored portion of the eye that encircles the pupil, as shown in Figure. Iris patterns are complex, containing more raw information than a fingerprint.
Depiction of an iris
The iris completes development during a person’s first two years of life, and its appearance remains stable over long periods of time. Irises are so personally unique that the left and right eyes of an individual are different. So, the iris patterns are always in identical twins. Iris templates are typically around 256 bytes.
Iris Scanner:
Iris scanning can be performed remotely using a high-resolution camera and templates generated by a process similar to retinal scanning. Figure shows an iris scanner sold by Panasonic. Unlike retinal scanning, iris recognition involves more standard imaging cameras that are not as specialized or as expensive.
Iris recognition camera
Iris scanning can be accomplished with users situated at a distance of up to one meter away from the camera. Iris scans work with glasses and they also detect artificial irises and contact lenses.
Disadvantages:
- Iris recognition needs more standard and inexpensive cameras.
- It also needs memory-intensive storage requirements.
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