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Iris positioning method, device and equipment

An iris positioning and iris technology, which is applied in the direction of calculation, acquisition/recognition of eyes, characters and pattern recognition, etc., can solve the problems of long time-consuming positioning calculation and poor accuracy, and achieve reduced time, improve positioning accuracy, and fast iris The effect of positioning

Pending Publication Date: 2022-05-13
深圳熙卓科技有限公司
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  • Claims
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Problems solved by technology

[0003] The embodiment of the present application provides an iris positioning method, device and equipment, which can solve the shortcomings of the existing iris positioning method, such as long time-consuming positioning calculation, poor accuracy, etc.

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  • Iris positioning method, device and equipment
  • Iris positioning method, device and equipment

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Embodiment Construction

[0047] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0048] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other Presence or addition of features, wholes, steps, operations, elements, components and / or collections thereof.

[0049] It should...

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Abstract

The invention is suitable for the technical field of iris positioning, and provides an iris positioning method, which comprises the following steps: acquiring an infrared image and a visible light image of a target eyeball; determining an iris inner edge of the target eyeball according to the infrared image; determining an iris outer edge of the target eyeball according to the visible light image; and determining an iris image of the target eyeball according to the iris inner edge and the iris outer edge. According to the scheme, the infrared image and the visible light image of the same eyeball are acquired, and the inner edge and the outer edge of the iris are respectively positioned by using different characteristics of the infrared image and the visible light image, so that iris positioning can be quickly performed, the duration of iris positioning is shortened, and the positioning precision is improved.

Description

technical field [0001] The present application belongs to the technical field of iris positioning, and in particular relates to an iris positioning method, device and equipment. Background technique [0002] The iris is the only muscle tissue that can be directly observed from the outside of the human body. It is a part of the eye structure. Due to the stability and uniqueness of the iris, the iris has been widely used in the field of personal identification in recent years. When performing iris positioning, it is necessary to determine the boundary between the pupil and the iris, the boundary between the sclera and the iris from the eyeball image, and finally form a ring-shaped iris image. Existing iris location methods mainly include calculus circular edge detector method, gray-scale projection method, etc., and they all have problems such as long time-consuming positioning calculation and poor accuracy. Contents of the invention [0003] The embodiment of the present a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V40/18G06V40/19
Inventor 孟万祥高金铎高峰车广芳黄钰云王彦顺
Owner 深圳熙卓科技有限公司
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