Iris recognition method and system

An iris recognition and iris technology, applied in the field of iris recognition, can solve the problems of complex processing process and low efficiency of iris recognition, and achieve the effect of simplifying the image processing process, improving the efficiency of iris recognition and reducing the complexity

Pending Publication Date: 2020-11-10
杭州吉吉知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and system for iris recognition to solve the problems of low iris recognition efficiency and complicated processing process

Method used

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  • Iris recognition method and system
  • Iris recognition method and system

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Experimental program
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Embodiment 1

[0046] Such as figure 1 as shown, figure 1 A method for iris recognition provided for an implementation of the present application, comprising steps:

[0047] S10: collecting an eye image, and performing image processing on the eye image;

[0048] S20: Obtain the inner and outer edge areas of the iris in the eye image, and extract an iris image according to the inner and outer edge areas;

[0049] S30: Encoding the iris image, acquiring feature encoding of the iris image, comparing and matching with a preset iris library, and outputting a comparison and matching result.

[0050] In this embodiment, the eyes include a left eye and a right eye with a symmetrical structure. In the process of iris recognition, the right eye can be selected as the recognition object, and the left eye or both left and right eyes can also be selected as the recognition object. This embodiment provides The iris recognition method does not limit the left and right of the eyes, but it can satisfy the...

Embodiment 2

[0065] refer to figure 2 , the present embodiment provides a method for iris recognition, comprising:

[0066] S21: collecting eye images by means of annularly distributed CMOS detectors, and performing image processing on the eye images;

[0067] S201: Determine the inner edge of the iris of the eye according to the high threshold sobel level operator and hough straight line detection;

[0068] S202: Determine the outer edge of the iris of the eye according to the low threshold sobel level operator and hough straight line detection;

[0069] S203: Segment an iris region according to the inner and outer edge regions of the iris, adjust the iris region to a preset size, and perform image enhancement on the iris region as an iris image;

[0070] S30: Encoding the iris image, acquiring feature encoding of the iris image, comparing and matching with a preset iris library, and outputting a comparison and matching result.

[0071] By combining Embodiment 1, this embodiment can d...

Embodiment 3

[0086] Such as image 3 As shown, this implementation provides a system for iris recognition, including:

[0087] Image processing module 31: for collecting eye images, and performing image processing on the eye images;

[0088] Image extraction module 32: used to obtain the inner edge and outer edge area of ​​the iris in the eye image, and extract the iris image according to the inner edge and outer edge area;

[0089] Comparison and matching module 33: used to encode the iris image, obtain the feature code of the iris image, compare and match with the preset iris library, and output the comparison and matching result.

[0090] In this embodiment, also include:

[0091] Image collection module 30: used for collecting the eye image by means of circularly distributed CMOS detectors.

[0092] Among them, the eye image collected by the annular distribution CMOS detector is a polar coordinate image. It should be understood that the annular distribution CMOS detector has the cha...

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Abstract

The invention provides an iris recognition method, which is used for solving the problem of low iris recognition efficiency, and comprises the following steps: S10, collecting an eye image, and carrying out imaging processing on the eye image; S20, obtaining the inner edge and outer edge areas of the iris in the eye image after the imaging processing, and extracting an iris image according to theinner edge and outer edge areas; and S30, encoding the iris image to obtain a feature code of the iris image, comparing and matching the feature code with a preset iris library, and outputting a comparison and matching result. By adopting the iris recognition method and device, the time spent in the iris recognition process can be shortened, the iris image processing complexity can be reduced, andthe iris recognition efficiency can be improved.

Description

technical field [0001] The invention relates to the field of iris recognition, in particular to an iris recognition method and system. Background technique [0002] Iris recognition is mainly used in occasions with high security requirements, and the iris collection process is highly dependent on users, and the quality of the collected user's iris images is easily affected by factors such as eyelids, eyelashes, and glasses. In some iris recognition technologies, traditional matrix detectors are used to collect iris pictures. Iris recognition needs to go through steps such as iris collection, iris positioning, iris normalization, image denoising enhancement, iris feature extraction and coding, and iris matching. The iris image collected by the matrix detector is an image in a normal rectangular coordinate system, which is not conducive to the subsequent processing of the iris image, increases the complexity of the subsequent iris processing process, increases the processing t...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/193G06V40/197
Inventor 赵阳
Owner 杭州吉吉知识产权运营有限公司
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