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Vena metacarpea image identifying device

An image recognition device and palm vein technology, which can be used in print image collection, character and pattern recognition, and acquisition/organization of fingerprints/palmprints. short effect

Inactive Publication Date: 2015-12-02
QINGDAO TRI LINK LOCK GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this processing method has the disadvantages of large amount of calculation data, slow speed, and long waiting time, and it is difficult to implement industrially

Method used

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  • Vena metacarpea image identifying device

Examples

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Embodiment 1

[0018] Example 1, such as figure 1 As shown, this embodiment discloses a palm vein image recognition device, the device includes an identification module for obtaining palm vein images; an image processing module electrically connected to the identification module for digitally processing the palm vein images Electrically connected to the image processing module, a central processing module for identification and judgment; electrically connected to the central processing module, a matching analysis module for comparing the palm vein image obtained by the identification module with samples in the sample library; and matching The analysis module is electrically connected to the sample library module for storing sample data; the output module is electrically connected to the central processing module. A near-infrared light source, an interference filtering unit, a hand rest and an induction starting unit are installed in the identification module. The image processing module inc...

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Abstract

The invention discloses a vena metacarpea image identifying method, comprising: collecting hand vena metacarpea images through an image acquisition device; graying color images; determining and marking an identification area according to the size of a connected region; generating a marked area into a 2DPCA characteristic database; partitioning pixels in the characteristic database; performing gauss noise reduction processing on partitioned pixels; performing weighting treatment on the projection matrix of each sub-block after blocking partition; removing the salt and pepper noise of the obtained result through weighting treatment to obtain characteristic data; and comparing the obtained characteristic data with the sample database in a sample database to obtain an identification result. The vena metacarpea image identifying method has a false reject rate less than 0.001%, and a false accept rate less than 0.00001%, possesses the characteristics of less operational data and short time, and facilitates industrialization.

Description

technical field [0001] The invention relates to the field of digital signal processing, in particular to a palm vein image recognition device in the field. Background technique [0002] With the advent of the information age, the security and confidentiality of information has aroused widespread concern. Palm vein intelligent biometric identification and authentication is a biometric identification and authentication technology based on the living body. Its principle is to capture the palm vein distribution map based on the absorption of near-infrared rays by the hemoglobin in the blood, perform image preprocessing, and extract feature values. , pattern matching to automatically identify targets. At present, relevant palm vein intelligent biometric products required in strategic fields such as national defense, finance, and confidentiality that have extremely high requirements for identity authentication in China are all dependent on imports, and are expensive, and a comple...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/1318
Inventor 王宇辉
Owner QINGDAO TRI LINK LOCK GROUP
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