Method and equipment for self-adaptive iris identification

Abstract

The invention provides a method and equipment for self-adaptive iris identification, which are applied to an iris identification system comprising a camera shooting device with adjustable focal length. The method comprises the steps of: acquiring images of an object to be identified in real time uninterruptedly by means of the camera shooting device; analyzing the image acquired at present, and adjusting a focal length of the camera shooting device based on the analysis result, so as to obtain a clearer image; extracting an iris image from the image obtained after focal length adjustment, andperforming quality analysis on the iris image; executing a process of ''analyzing the image acquired at present'' if the quality analysis is unqualified; and performing iris identification based on the iris image if the quality analysis is qualified. According to the method and the equipment, the acquired image is analyzed, the focal length of the camera shooting device is adjusted according to the analysis result, thus the clear iris image is acquired for iris identification based on the camera shooting device with adjusted focal length, the remote iris identification is realized, and the application scenarios of iris identification is expanded.

Description

technical field [0001] The invention relates to the field of iris recognition, in particular to a method and equipment for self-adaptive iris recognition. Background technique [0002] At present, with the development of technology, in many fields that require identification and authentication, such as payment, authorization, etc., more and more iris recognition technology is applied; the specific iris recognition technology is a kind of iris in the eye. The identified security detection technology has the following characteristics: [0003] 1. Anti-counterfeiting, iris and human life coexist, which can ensure the authenticity of physiological tissues and have a high degree of anti-counterfeiting; [0004] 2. Non-contact, iris digital images can be obtained within a certain distance, without the need for users to touch the device, without infringing on the person, easy to be accepted by the public; [0005] 3. Uniqueness. Each iris contains different information and has un...

AI Technical Summary

Problems solved by technology

[0007] However, there is currently a problem with iris recognition. Because the contrast between the iris and the human body is relatively small, it is difficult to realize the iris recognition technology after the human body is detected at a long distance, that is, it is impossible to realize long-distance recognition.

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