20080219515 | IRIS RECOGNITION SYSTEM, A METHOD THEREOF, AND AN ENCRYPTION SYSTEM USING THE SAME - The present invention generally relates to an iris recognition system, a method thereof, and an encryption system, and more specifically, to an iris recognition system comprising: an image selector for selecting one image from a plurality of iris images inputted from an image input device; an internal edge extractor for extracting an internal edge of the selected iris image; an external edge extractor for extracting an external edge of the selected iris image; an iris area normalizer for normalizing an iris area; a security level applier for securing the iris which increases according to age; a rotational image processor for taking charge of processing for an inclined iris image; a feature value extractor for extracting a feature value from the iris image; and a consistency decider for comparing the extracted feature value with a stored iris code to decide whether the compared feature value and iris code are consistent; and wherein with regards to each of inputted iris images, the image selector scans each iris image in pixel unit by using a mask defined into a second area which is in square shape and a first area configured as the peripheral girth of the second area, calculates the number of pixels C | 09-11-2008 |