Method and device for judging left iris and right iris in iris recognition

An iris recognition, left and right technology, applied in the field of iris recognition, can solve the problems of narrow application range, unsuitable monocular iris image, inability to judge the attributes of the left and right eyes of the iris image, etc., to achieve the effect of wide application range and high accuracy rate

Active Publication Date: 2016-03-30
BEIJING EYECOOL TECH CO LTD +1
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Problems solved by technology

[0006] First of all, the collected iris image must be a binocular iris image, which is not applicable to a monocular iris image, and the application range is narrow; secondly, when positioning the iris image (positioning refers to locating the position of the eye from the original image taken) , if there is an error or omission in the positioning, then the left and right eye properties of the iris image cannot be judged

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  • Method and device for judging left iris and right iris in iris recognition
  • Method and device for judging left iris and right iris in iris recognition

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Embodiment Construction

[0028] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0029] On the one hand, the embodiment of the present invention provides a method for judging the left and right irises in iris recognition, such as figure 1 shown, including:

[0030] Step 101: Intercept sub-images including upper eyelashes and eye corners from the iris image.

[0031] In this embodiment, it is judged whether it is the iris of the left eye or the iris of the right eye based on the density of the upper eyelashes. Therefore, it is necessary to locate and intercept the sub-image including the upper eyelashes. In the sub-image, the eye corner refers to the angle between the upper eyelid and the lower eyelid of the human eye, including the inner eye corner and the outer eye corner.

[0032] Step 102: Count the density of upper eyelashes on...

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Abstract

The invention discloses a method and a device for judging the left iris and the right iris in iris recognition, and belongs to the field of iris recognition. The method comprises the following steps: clipping a sub image containing the upper eyelashes and the canthus from an iris image; working out the upper eyelash intensity of the left side and the upper eyelash intensity of the right side of the sub image; comparing the upper eyelash intensity of the left side with the upper eyelash intensity of the right side of the sub image; and determining that the iris image is a right eye iris image if the upper eyelash intensity of the left side is higher than the upper eyelash intensity of the right side, or determining that the iris image is a left eye iris image. The method is simple and convenient, and is of high accuracy and a wide application scope.

Description

technical field [0001] The invention belongs to the field of iris recognition, in particular to a method and device for judging left and right irises in iris recognition. Background technique [0002] At present, identification technologies based on fingerprints, faces and irises are widely used. Among them, iris recognition is recognized as the safest and most accurate identification method in biometrics due to the high uniqueness, stability and unchangeable characteristics of the iris. [0003] In iris recognition, the user's iris image is stored in the database in advance, and then the iris image is collected, and the collected iris image is compared with the pre-stored iris image. If the comparison is passed, the iris recognition is passed. If the comparison is not If passed, the iris recognition fails. However, in traditional iris recognition, the left and right iris images of the same person are not distinguished, and are stored in the iris database of the person. Wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/18
Inventor 王洪
Owner BEIJING EYECOOL TECH CO LTD
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