Iris location method
An iris positioning and iris image technology, which is applied in the direction of instrument, character and pattern recognition, acquisition/recognition of eyes, etc. Effect
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[0038] In order to describe the content of the present invention conveniently, first define some terms.
[0039] Definition 1: Iris. The center of the eyeball is the black pupil, and the annular tissue between the outer edge of the pupil is the iris, which exhibits interlaced texture features similar to spots, filaments, stripes, and recesses. The iris of the same person hardly changes in a person's life, and the iris of different people is completely different.
[0040] Definition 2: Binarization threshold. The gray threshold value selected when binarizing the image.
[0041] Definition 3: Binarization. The process of converting all the 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 binarization threshold, the value of the point is binarized to 1 (or 255); when the value on the image is less than the binarization threshold, the value of the point is binarized to...
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