A binocular iris image acquisition device and method

Abstract

The embodiment of the present invention provides a binocular iris image acquisition device and method, including a housing, a left eye lens, a right eye lens, a left eye infrared lighting module, a right eye infrared lighting module, a left eye image sensor and a right eye image sensor; the front end of the housing is set as an opening The left eye lens and the right eye lens are respectively facing the opening, and according to the preset acquisition order, sequentially collect iris images in the corresponding direction; the lighting end of the left eye infrared lighting module is tilted to the left, and the lighting end of the right eye infrared lighting module is tilted to the right. The infrared light is sequentially emitted to the iris in the corresponding direction according to the preset collection sequence; the left-eye image sensor and the right-eye image sensor respectively process the collected iris images in the corresponding direction to obtain binocular iris images. The embodiment of the present invention makes the characteristic details of the collected iris image finer, and improves the quality of the binocular iris image.

Description

technical field [0001] The invention relates to the technical field of iris collection, in particular to a binocular iris image collection device and method. Background technique [0002] The human eye structure is composed of sclera, iris, pupil lens and retina. Among them, the iris is a ring-shaped part located between the black pupil and the white sclera, which contains many detailed features such as interlaced spots, filaments, crowns, stripes and crypts. Since the iris has characteristics that remain unchanged throughout the life course after the formation of the fetal development stage, these characteristics determine the uniqueness of the iris characteristics and also determine the uniqueness of the iris as an identity. Therefore, the iris feature of the eye can be used as the identification object of each person. [0003] The image quality obtained by iris acquisition devices currently on the market is relatively poor, and their internal structures mostly use cross...

AI Technical Summary

Problems solved by technology

[0003] The image quality obtained by iris acquisition devices currently on the market is relatively poor, and their internal structures mostly use cross-illumination from different sides, resulting in insufficient illumination distribution uniformity in the illuminated area, which reduces the quality of iris images; and, because some iris acquisition devices collect The definition of the iris image is very low, which reduces the security of the iris image and cannot be used in some scenarios with high security level requirements

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