The present invention relates to an iris identification method and
system, which divide an
iris image, which is acquired for personal identification, into a plurality of equal / unequal and multiscale regions, generate a corresponding code corresponding to the respective regions, organizing codes into a
database, generate a code at the time of
authentication in the same manner, and identify a person by comparing this code with the codes stored in the
database, thus improving identification speed and rate.The present invention provides an iris identification method including
iris code registration and
iris code authentication, the
iris code registration including the steps of acquiring iris images by capturing iris using cameras or receiving image files, generating iris codes from the acquired iris images, and storing the generated iris codes in a
database, the iris code
authentication including the steps of acquiring an
iris image in a manner identical to that of the iris code registration, generating an iris code from the acquired
iris image, and identifying the generated iris code by comparing the generated iris code with the iris codes stored in the database, wherein the iris
code generation step is performed in such a way as to determine the inner and outer boundaries of an iris region by approximating the inner and outer boundaries with general curves based on actual shapes of the inner and outer boundaries, divide a part or all of a region between the inner and outer boundaries into one or more unit sectors, and generate an iris code corresponding to the respective sectors, and the iris code identification step is performed in such a way as to measure the distances of the generated code to the existing codes stored in the database and determine whether each of the distances falls within a threshold value.