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Iris recognition system and iris recognition method

An iris recognition and iris technology, applied in the field of iris recognition system, can solve the problem of missing iris image elements, and achieve the effect of expanding the degree of freedom of use and improving the recognition speed and accuracy

Active Publication Date: 2015-12-16
CHANGZHOU RAYTECH OPTRONICS CO LTD +1
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AI Technical Summary

Problems solved by technology

[0006] When the above-mentioned camera module is specifically applied to the iris recognition technology, such as image 3 As shown, once the device rotates the angle α clockwise, the image output by the image processor will correspondingly rotate the angle α counterclockwise. At this time, the iris images of both eyes are no longer in the inherent positioning position, and the iris recognition module needs to be in the inherent positioning position Only then can the iris image be recognized, and the elements of the iris image are also missing

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  • Iris recognition system and iris recognition method

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[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] Such as Figure 4 As shown, an iris recognition system 100 has a camera module 101 , an image processor 102 , a memory 103 , an iris recognition module 104 and a gyroscope 105 . The camera module 101 is used to acquire iris images of both eyes, and transmit the iris images to the image processor 102 .

[0040] The image processor 102 can perform some preprocessing on the iris image, such as adjusting image brightness and contrast to improve recognition, etc., which can be a CCD or CMOS image sensor. The image processor 102 includes an image aspect ratio selection module 102a, an image capture module 102b electrically connected to the image aspect ratio selection module 102a, and a rotation module 102c electrically connected to the image capture module 102b. The image aspect ratio selection module 102a is used to select the aspect ratio of the o...

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Abstract

The invention provides an iris recognition system and an iris recognition method. The iris recognition system comprises a camera module, an image processor, a memory, and a comparator. The camera module includes a lens module having an imaging area and an image sensor having a photosensitive area, and the imaging area completely falls into the photosensitive area. According to the invention, the photosensitive area of the image sensor is greater than the imaging area of the lens module, so that the image processing module can capture an iris image at any angle and in any proportion. The recognition speed and precision of the iris recognition system are improved, and the degree of freedom in using the iris recognition system is expanded.

Description

【Technical field】 [0001] The invention relates to an iris recognition system, in particular to an iris recognition system with expanded degrees of freedom and an iris recognition method. 【Background technique】 [0002] With the increasing popularity of Internet technology and the development of mobile electronic devices such as mobile phones and tablet computers, people pay more and more attention to privacy. Research on information security of mobile electronic devices is also increasing day by day. In the prior art, security authentication technologies such as password unlocking and fingerprint recognition have been developed and widely popularized. Although these technologies have their advantages, the disadvantages are also obvious. For example, there is a risk that password unlocking can be easily cracked. Fingerprint recognition is relatively safe, but it is not without loopholes. After all, fingerprints can be copied. [0003] Iris recognition technology is a kind ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/18
Inventor 魏回徐运强
Owner CHANGZHOU RAYTECH OPTRONICS CO LTD
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