DEVICE AND METHOD FOR IRIS RECOGNITION USING A PLURALITY OF IRIS IMAGES HAVING DIFFERENT IRIS SIZES

摘要

The present invention relates to an iris recognition device and method capableofimproving iris recognition accuracy. Toenhance iris recognition accuracy inconsideration of variation in pupil size and iris region due to changes inintensity oflighting, the iris recognition device and method are configured to obtainmultiple irisimages having different iris sizes by capturing iris images of a person to beenrolled with acamera while adjusting brightness of lighting so that the iris size of theperson to beenrolled varies from a maximum size to a minimum size, store the obtained irisimagesand associated iris size information for enrollment in a database interworkingwith the irisrecognition device, and select enrolled iris images having an iris size mostsimilar to thatof an iris image captured by the camera for identification among many enrollediris imagesfor similarity measurement.