Iris identification method and device, and terminal
An iris recognition and iris technology, applied in the field of iris recognition, can solve the problems of low detection efficiency, time-consuming, low detection accuracy, etc., and achieve the effect of improving efficiency and accuracy
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no. 1 example
[0028] like figure 1 As shown, the iris recognition method provided by this embodiment includes: Step S10: collecting iris samples of the user, and at the same time splicing the iris samples to form a splicing plate. That is, while collecting the iris samples of the holder, the collected iris samples are spliced to form a splicing plate. The purpose of forming the splicing plate is to match the splicing plate with the iris preset template, so as to identify whether the iris sample of the user is the pre-set iris template in the terminal. Next, in step S20: check the ratio of the spliced area of the spliced plates to the total iris area, and if the ratio is less than the lower limit, continue to collect iris samples of the user. Therefore, in this step, it is first determined whether the ratio of the splicing area of the splicing plates to the total iris area is less than the lower limit, and if it is less than the lower limit, then continue to collect the iris sampl...
no. 2 example
[0032] like figure 2 As shown, this embodiment is based on the first embodiment, step S30: according to the ratio, and the matching degree of the mosaic plate and the iris preset template, determine whether the matching is successful, specifically includes step S300: the ratio is set in the first value and the second set value, if the matching degree between the mosaic plate and the iris preset template is not less than the first threshold, proceed to step S10: collect the iris samples of the user, and at the same time, splice the iris samples to form a splicing plates. If the matching degree of the mosaic block and the preset iris template is less than a first threshold, the matching fails, wherein the first set value is less than the second set value. Therefore, in the process of collecting iris samples, the ratio of the splicing area of the splicing plates to the total area of the iris is judged at any time, and the next action is determined according to this ratio. ...
no. 3 example
[0034] like image 3As shown, on the basis of the second embodiment, step S30 in the iris recognition method in this implementation: according to the ratio, and the matching degree of the mosaic plate and the iris preset template, determine whether the matching is successful, specifically including: Step S301: The ratio is greater than the third set value, if the matching degree of the mosaic plate and the iris preset template is not less than the second threshold, the matching is successful; if the matching degree of the splicing plate and the iris preset template is less than the second threshold, the matching fails, wherein The third set value is not less than the second set value. Thus, in this embodiment, when the ratio of the mosaic area of the mosaic board to the total area of the iris is greater than the third set value, it can be measured according to the matching degree of the mosaic board and the iris preset template, so according to the matching degree Whether...
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