Binocular iris characteristic obtaining method, binocular iris characteristic obtaining device, identity identification method and identity identification system

Abstract

The invention provides a binocular iris characteristic obtaining method, a binocular iris characteristic obtaining device, an identity identification method and an identity identification system. The binocular iris characteristic obtaining method comprises the steps of respectively determining boundaries of a left-eye iris and a right-eye iris in an image; sampling a series of concentric circles between the left-eye iris boundary and the right-eye iris boundary, and acquiring a left-eye iris pattern image and a right-eye iris pattern image; fusing the left-eye iris pattern image and the right-eye iris pattern image for obtaining one image, thereby obtaining a binocular pattern image; performing partial characteristic extraction on the binocular pattern image and coding the extracted information, thereby obtaining a binocular iris characteristic. The amount of information contained in the binocular iris characteristic is two times of that of information contained in a single-eye iris characteristic, thereby effectively improving identification safety and improving difficulty in breaking iris verification when the binocular iris characteristic is applied in identity identification.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to a binocular iris feature acquisition method and device, and an identity verification method and system. Background technique [0002] Due to the fact that people and things are separated in traditional identity authentication methods such as relying on keys and certificates for identity authentication, it is difficult to guarantee the effectiveness of identity authentication, and it has been unable to meet the security requirements for identity authentication in the Internet age and the common application of computers. In order to meet the requirements of convenience and convenience, there is an urgent need to solve the problem of inseparability between the person and the object that proves the identity of the person, that is, the problem of the unity of the witness and the certificate. Face, iris, fingerprint, etc. are an inseparable part of the human bo...

AI Technical Summary

Problems solved by technology

[0003] However, due to the influence of ambient light and image sensor performance, the iris image acquired by the existing monocular iris detection device is not ideal, resulting in blurred iris texture or disappearance of detail information, which affects the effective extraction of iris texture features , which increases the possibility that different irises are similar, making the iris detection device prone to misjudgment

The existing iris texture feature extraction and representation are easily affected by the initial position of the iris ring, which causes the phase inconsistency of iris features, which also brings difficulties to the comparison of iris features

Images