Computer-assisted iris comparison method and device

A computer-aided iris technology, applied in the field of iris recognition, can solve problems such as iris irregularity, identity authentication failure, iris recognition failure, etc.

Pending Publication Date: 2020-11-27
INST OF FORENSIC SCI OF MIN OF PUBLIC SECURITY +1
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Problems solved by technology

[0003] However, the current level of computer iris recognition cannot handle all iris images with 100% accuracy. For example, some iris images will have mydriasis and iris irregularities, which will cause iris recognition to fail; Authentication failed due to corpse iris distortion
In addition, in the process of judicial identific...

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  • Computer-assisted iris comparison method and device
  • Computer-assisted iris comparison method and device
  • Computer-assisted iris comparison method and device

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Embodiment Construction

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0043] At present, the iris recognition methods are all computer iris recognition methods, which cannot incorporate artificial experience judgment. Therefore, in the case that the computer iris recognition level cannot process the iris image 100% accurately, it is impossible to reduce computer iris recognition errors by using human experience judgment. In addition, the field of iris identification is still blank, resulting in no method in the field of iris identification that can be used as an implementation basis.

[0044] In order to solve the above problems, the e...

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Abstract

The invention provides a computer-assisted iris comparison method and device, and the method comprises the steps: obtaining a first iris image and a second iris image; rotating the iris in the first iris image and the iris in the second iris image to the same angle; carrying out iris positioning on the rotated first iris image and second iris image and carrying out normalization operation, whereinthe normalization operation comprises one or more of iris radius normalization, pupil radius normalization and rectangular expansion normalization; calculating iris texture feature attribute information of corresponding positions in the first iris image and the second iris image after normalization operation; outputting the iris texture feature attribute information for display so as to obtain texture consistency comparison results of corresponding areas in the two iris images; and if the consistent iris texture features are compared and determined to meet the identity determination, determining that the first iris image and the second iris image are from the same iris. According to the scheme, the blank in the field of artificial iris comparison is filled.

Description

technical field [0001] The invention relates to the technical field of iris recognition, in particular to a computer-aided iris comparison method and device. Background technique [0002] Because of its high stability, uniqueness, and anti-counterfeiting, iris recognition is regarded as a highly secure biometric identification method, and is being more and more widely used in high-precision identification scenarios. At present, the iris recognition method is computer iris recognition, that is, the computer automatically collects the user's iris image, extracts iris features, and compares it with the iris feature template in the database to complete the identification of the user's identity. [0003] However, the current level of computer iris recognition cannot handle all iris images with 100% accuracy. For example, some iris images will have mydriasis and iris irregularities, which will cause iris recognition to fail; Authentication failed due to corpse iris distortion. I...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06N3/04G06N3/08
CPCG06N3/08G06V40/197G06V40/193G06N3/045
Inventor 陈子龙马力王子政苗迪胡文锋邱显超秦旗刘京刘寰王玥苗振民
Owner INST OF FORENSIC SCI OF MIN OF PUBLIC SECURITY
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