Fingerprint and iris integration identification device

A technology that integrates recognition and iris, and is applied in character and pattern recognition, instruments, calculations, etc. to improve reliability, improve safety, and prevent head rotation.

Inactive Publication Date: 2014-02-26
JILIN UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Through the combination of hardware and software, the device of the present invention solves the problems

Method used

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  • Fingerprint and iris integration identification device
  • Fingerprint and iris integration identification device
  • Fingerprint and iris integration identification device

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Experimental program
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Embodiment 1

[0028] Such as figure 1 and figure 2 Shown:

[0029] The device of the invention is mainly composed of a microcontroller, an infrared distance measuring unit, an iris collection unit, a fingerprint collection unit, a lighting feedback unit, an infrared lighting unit, a living body detection unit, an image preprocessing unit, and an image recognition unit.

[0030] Among the above components:

[0031]The microcontroller uses STC12C5A60S2 single-chip microcomputer with its own A / D conversion circuit; the infrared ranging unit uses SHARP GP2D120 infrared ranging unit, and the ranging range is (4 ~ 30) cm; the iris acquisition unit uses Philosophical 900,000 pixel resolution IR ( Infrared) lens and CBM130WM 1.3 million pixel black and white industrial camera produced by Dushen Company. The fingerprint collection unit uses U.are.U 4000B fingerprint collection device; the light feedback unit uses 5MM common cathode RGB light-emitting diodes and 300Ω fixed-value resistors; the l...

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PUM

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Abstract

The invention discloses a fingerprint and iris integration identification device. The fingerprint and iris integration identification device mainly comprises a micro controller, an infrared range finding unit, an iris acquisition unit, a fingerprint acquisition unit, a light feedback unit, an infrared illumination unit, a live detection unit, an image preprocessing unit and an image identification unit. Characteristic matrixes of a fingerprint and an iris are integrated and then identified, no independent identification is carried out, and identification reliability is improved; according to live detection, a method which is easy and reliable and has no algorithm dependence is provided, so live detection can be carried out fast and effectively; according to a problem of inaccurate identification caused by easily-generated head rotation in an iris identification process, a solution scheme for head rotation prevention is provided; according to influence of natural light, a method for removing the natural light is developed. The device can realize integration identification employing the iris and the fingerprint, has higher reliability compared with independent application of the iris and the fingerprint, and solves problems of live detection, horizontal head rotation and natural light employing a human engineering principle, a human body physiologically principle and an optical principle, reduces identification errors and improves reliability.

Description

technical field [0001] The invention discloses a fingerprint and iris fusion identification device, which belongs to the field of biological feature identification. Background technique [0002] Biometric identification technology refers to a technology that uses human biometrics for identity authentication. Among all biometric features, fingerprints are relatively stable and easy to collect and identify. Iris is a biometric feature in the body that will not be affected by wear and aging, and iris recognition has the lowest error rate among various biometric identification methods. [0003] Most of the current existing technologies only identify fingerprints or iris information alone, and judge whether they are legitimate users through the identification results. There is no technical method for fusion identification of these two biometric features; A detection technology for judging whether the iris recognition object is a real human eye. Most of the current existing tech...

Claims

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Application Information

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IPC IPC(8): G06K9/00
Inventor 朱晓冬刘元宁庞玉彤张晓旭何飞陈英霍光黄春刘威
Owner JILIN UNIV
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