Iris recognition method and device and terminal device
A technology of iris recognition and iris, which is applied in character and pattern recognition, acquisition/recognition of eyes, instruments, etc. It can solve the problems of inaccurate iris positioning, low iris recognition accuracy, and poor denoising effect, so as to improve the accuracy rate effect
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Embodiment 1
[0049] see figure 1 , provides a schematic flow diagram of an embodiment of an iris recognition method, described in detail as follows:
[0050] Step S101, acquiring an eye image of a user, where the eye image includes an iris.
[0051] Wherein, step S101 may be implemented as: taking pictures of the eye parts of the user to be detected, and obtaining an image including the eye parts. In the specific implementation process, the approximate area of the eye is first determined by a detection algorithm, and then one or more shots are taken of the eye area to obtain one or more images containing the eye. Such as figure 2 As shown, it is the original image of the user's eye. The collection device may be a visible light camera, but is not limited to a visible light camera.
[0052] Step S102, using a fast detection algorithm to detect the inner circle and outer circle boundary of the iris, and the ring part formed by the inner circle and the outer circle boundary is the corresp...
Embodiment 2
[0096] Corresponding to the iris recognition method described in the first embodiment above, Figure 9 shows the structural block diagram of the iris recognition device according to the second embodiment of the present invention. For ease of description, only the parts related to this embodiment are shown.
[0097] The device includes an image acquisition module 110 , an image transformation module 120 , a feature extraction module 130 and a pattern matching module 140 .
[0098] The image acquisition module 110 is used to acquire the user's eye image and detect the inner circle and outer circle boundary of the iris through a detection algorithm, and obtain the ring part formed by the inner circle and the outer circle boundary, which is the circular iris image.
[0099] The image transformation module 120 is configured to normalize the circular iris image into a rectangular iris image of a preset size.
[0100] The feature extraction module 130 is configured to divide the re...
Embodiment 3
[0111] Figure 10 It is a schematic diagram of an iris recognition terminal device provided by an embodiment of the present invention. Such as Figure 10 As shown, the iris recognition terminal device 10 of this embodiment includes: a processor 100, a memory 101, and a computer program 102 stored in the memory 101 and operable on the processor 100, such as an iris recognition program. When the processor 100 executes the computer program 102, the steps in each of the above-mentioned iris recognition method embodiments are realized, for example figure 1 Steps S101-S105 are shown. Alternatively, when the processor 100 executes the computer program 102, it realizes the functions of the modules / units in the above-mentioned device embodiments, for example Figure 9 The functions of modules 110 to 140 are shown.
[0112] Exemplarily, the computer program 102 may be divided into one or more modules / units, and the one or more modules / units are stored in the memory 101 and executed ...
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