Iris positioning method based on multi-resolutions analysis
A multi-resolution analysis and iris positioning technology, applied in the field of iris identification, can solve problems such as excessive calculation, poor versatility, and noise sensitivity
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[0038] In order to describe the content of the present invention conveniently, some terms are defined first.
[0039] Definition 1: Iris. The center of the eyeball is the black pupil, and the ring-shaped tissue between the outer edges of the pupil is the iris. It presents interlaced texture features resembling spots, filaments, striations, and crypts. The iris of the same person hardly changes throughout a person's life, and the iris of different people is completely different.
[0040] Definition 2: Grayscale image. An image that contains only luminance information in the image without any other color information.
[0041] Definition 3: Binarization threshold. The grayscale threshold value selected when performing binarization on the image.
[0042] Definition 4: Binarization. The process of converting all values of the entire image into only two values, generally these two values are 0 and 1 or 0 and 255. When the value on the image is greater than or equal to the...
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