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Imaging device based on finger biometric information and multimoding identity recognition method

A technology of identity recognition and biometrics, applied in character and pattern recognition, instruments, computer components, etc., can solve the problems of single biometric identification being vulnerable to damage, forgery, recognition success rate, instability, etc., and achieve a simple and high authentication process. The effect of reliability and simplicity of acquisition equipment

Inactive Publication Date: 2013-11-20
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide an imaging device based on finger vein fingerprints and finger backprints and a multi-modal identification authentication method to solve the problem that single biometric identification is easily damaged and forged and successfully identified Improve the reliability, stability and practicability of the authentication system

Method used

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  • Imaging device based on finger biometric information and multimoding identity recognition method
  • Imaging device based on finger biometric information and multimoding identity recognition method
  • Imaging device based on finger biometric information and multimoding identity recognition method

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Embodiment 1

[0036] Embodiment 1. Imaging equipment based on finger biometric information

[0037] figure 1 It is the outline drawing of the imaging device that the present invention is based on referring to biological information. The device includes a shell (E), a power switch (G) is arranged on the shell, a small hole (F) is provided in the middle part of the shell to penetrate the finger (A), and the acquisition device is connected with the computer (H) through a data interface.

[0038] Figure 2 to Figure 5 It is a structural diagram of the imaging device of the present invention. The upper and lower ends of the housing (E) are equipped with visible light imaging devices (1) to obtain the images of the fingerprints (D) and fingerprints (C) of the fingers, and infrared is installed on one side (K) of the housing (E) The imaging device (7) is used to obtain the image of the finger vein (B). The upper and lower ends of the housing (E) are each provided with a red light source (2) which are...

Embodiment 2

[0045] Embodiment 2. Multi-modal identification and authentication method based on finger biometric information

[0046] Image 6 It is a flow chart of the multi-modal identification authentication method of the present invention, and the specific process is as follows:

[0047] Firstly, the fingerprint image, backprint image, and finger vein image of the same finger are collected for preprocessing, and feature vectors representing three biometric patterns are extracted, and three independent feature vectors are stored to complete the registration process of storing sample data.

[0048] Then, the current biometrics are collected and converted into feature vectors, and then compared with the feature vectors in the sample database, the final recognition result is determined and calculated. Specifically, the fingerprint image, backprint image and finger vein image of the same finger are preprocessed respectively. Extract the feature vectors that can represent the three biological featu...

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Abstract

Provided are an imaging device based on finger biometric information and a multimoding identity recognition method. The imaging device comprises a casing. The middle part of the casing is provided with a small hole into which a finger penetrates. Visible light imaging devices are installed on the upper side and the lower side of the casing and used for obtaining images of finger back lines and fingerprints, and an infrared imaging device is installed on the lateral part of the casing and used for obtaining finger vein images. The upper side and the lower side in the casing are respectively provided with a group of red light sources, and two sides below the small hole are provided with infrared light sources. Two red light filters, an infrared filter and an anti-infrared filter are arranged in front of the imaging device, and a power supply device and a control circuit are arranged in the casing. The multimoding identity recognition method mainly combines three biological characteristics of vein lines, the fingerprints and the finger back lines on the same finger to perform identity recognition, thereby having good counterfeit prevention performance and practical applicability.

Description

Technical field [0001] The invention belongs to the technical field of human body biometric identification, and specifically relates to an image acquisition device for simultaneously collecting hand fingerprints, finger prints, and finger veins at one time and a multi-modal identity authentication judgment method. Background technique [0002] Biometrics is a new identification technology. In real life, everyone has unique biological characteristics that distinguish them from others. With the development of computer technology, people can extract a variety of biometric data from themselves, such as fingerprints, finger veins, finger prints, facial images, pupils, voices, palm prints, and so on. This kind of technology that relies on human physical characteristics for identity verification is collectively called biometric technology. [0003] Compared with traditional identity authentication methods, the biggest feature of biometric identification is to authenticate the user's own...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/64
Inventor 杨晓苹李飞朱亚东李波吴喆明曹丽丽陈志宏史光远马华
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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