Patent ID: 6785406
Filing Date: 2004-08-31
Classification: A61B,G06K

Abstract:
An iris authentication apparatus that performs personal authentication based on data generated from an iris of a person's eye the apparatus comprising:iris data detecting means including a camera for detecting an iris of a person and producing corresponding detected iris data; iris data processing means for judging that the iris data detected by the iris data detecting means is iris data of a registered person by comparing the detected iris data with registered iris data; and means for detecting that the detected iris data is detected from a living person including a light source for radiating near infrared light to the person's eye, a signal processor for processing an output of the camera, and a mechanical controller for adjusting a position of the camera, whereby a rotation of the head of the person results in an involuntary movement of the eye and position data of the iris image detected by the camera is fed to the iris data processing means that determines difference position data between the iris data used to judge the registered person and current position data upon the head rotation and the difference position data is fed to the signal processor to produce a control signal fed to the mechanical controller to move the camera to minimize the difference position data, wherein the iris data processing means compares the minimized position data with stored position data and it is judged whether a living person is present.