A plurality of iris codes are registered for each registrant in an iris database (12) together with pupil diameter-iris diameter ratio R. At the time of authentication, an iris code is obtained from a captured iris image by feature extraction while pupil diameter-iris diameter ratio R is obtained. Ratio...http://www.google.fr/patents/US7796784?utm_source=gb-gplus-shareBrevet US7796784 - Personal authentication method for certificating individual iris
Personal authentication method for certificating individual iris
