Patent ID: 6760467
Filing Date: 2004-07-06
Classification: G06K

Abstract:
A falsification discrimination method for an iris recognition system, comprising:a first step of imaging a user's eye when the user approaches a field of view, processing the image signal, and determining whether the image is precisely focused; a second step of selectively lighting a light emitting diode installed near a camera during imaging while checking if the reflected image of a corresponding light emitting diode is presented in the image of the iris and pupil; and a third step of determining that the iris is a falsification and informing the system of the fact if the reflected image of the corresponding light emitting diode is not detected as the result of the comparison, and determining whether the iris is really recognized if the image is detected, wherein the selectively lighting of the light emitting diode comprises lighting at least two distinct light sources, and wherein the determining that the iris is a falsification comprises determining whether the reflected image comprises images of reflections of sequential lighting of the light emitting diodes corresponding to images of predetermined reflections of the sequential lighting of the light emitting diodes.