One-to-one iris identification method for scale variation stability characteristics and multi-algorithm voting
A technology of scale change and iris recognition, which is applied to acquisition/recognition of eyes, character and pattern recognition, calculation, etc. It can solve the problems of iris feature extraction deviation, judgment error, and unstable distribution of iris texture features.
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Embodiment 1
[0080] The whole process of operating on a certain person (named A) under the framework of claim 1:
[0081] 1) collect the eye image of A through the iris collector, and extract the iris information in the eye image of A through the computer;
[0082] After the eye image is collected, the computer determines that the iris information can be extracted from the clarity of the collected eye image through the Tenengrad gradient method. Through the method of canny edge detection and hough detection circle, find the location of the pupil and iris boundary, calculate the area of the inner ring of the two boundaries, and find the gray distribution of the iris area according to the gray histogram, and then calculate the iris according to the gray distribution The ratio of the area of the area to the ring, and the proportion of the iris accounts for one-third of the ratio of the iris ring, so the computer determines that the iris area in the captured eye image can extract enough ir...
Embodiment 2
[0096] The whole process of operation performed by two persons (named B and C) within the framework of claim 1:
[0097] 1) Collect the eye image of B through the iris collector, and extract the iris information in the eye image of B through the computer;
[0098] After the eye image is collected, the computer determines that the iris information can be extracted from the clarity of the collected eye image through the Tenengrad gradient method. After that, the computer finds the location of the pupil and the iris boundary through the method of canny edge detection and hough detection circle, calculates the area of the inner circle of the two boundaries, and finds the gray distribution of the iris area according to the gray histogram, and then according to the gray The ratio of the area of the iris area in the ring is calculated by distribution, and the iris ratio accounts for 50% of the iris ring ratio, so the computer determines that the iris area in the captured eye imag...
Embodiment 3
[0112] The whole process of operating on a certain person (named D) under the framework of claim 1:
[0113] 1) Collect the eye image of D through the iris collector, and extract the iris information in the eye image of D through the computer;
[0114] After the eye image is collected, the computer determines that the iris information can be extracted from the clarity of the collected eye image through the Tenengrad gradient method. Through the method of canny edge detection and hough detection circle, find the location of the pupil and iris boundary, calculate the area of the inner ring of the two boundaries, and find the gray distribution of the iris area according to the gray histogram, and then calculate the iris according to the gray distribution The proportion of the area of the area in the ring, the proportion of the iris accounts for 69% of the proportion of the iris ring, so the computer determines that the iris area in the captured eye image can extract enough ir...
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