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Identity recognition instrument based on characteristics of subcutaneous vein of dorsum of hand and recognition method

A subcutaneous vein and identity recognition technology, which is applied in the field of human biometric identity recognition, can solve the problems of easy change, few fingerprint features, and inconvenient collection, and achieve the effect of easy acceptance, stable system, and security

Inactive Publication Date: 2007-08-01
TIANJIN UNIVERSITY OF TECHNOLOGY
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AI Technical Summary

Problems solved by technology

However, fingerprint identification also has its own disadvantages: 1) the fingerprints of some people or groups cannot meet the filing requirements because of the few fingerprint features; People are wary; 3) Every use leaves an impression of the user's fingerprint on the fingerprint reader, and these impressions may be used to duplicate fingerprints
Face and iris biometrics have shortcomings such as easy to change and inconvenient collection, so it is inconvenient to be widely used

Method used

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  • Identity recognition instrument based on characteristics of subcutaneous vein of dorsum of hand and recognition method
  • Identity recognition instrument based on characteristics of subcutaneous vein of dorsum of hand and recognition method

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Embodiment Construction

[0037] The identification device and its identification method based on the characteristics of the subcutaneous veins and blood vessels on the back of the human hand of the present invention will be described in detail below in conjunction with the embodiments.

[0038] The identification device based on the characteristics of the subcutaneous veins and blood vessels on the back of the human hand of the present invention includes: a CCD sensor 1 for collecting images of the subcutaneous veins and blood vessels on the back of the human hand; A / D converter 2; an embedded processor 3 that is connected with the A / D converter 2 to receive and store digital signals, and compares, analyzes and processes the collected digital signals with the stored data.

[0039] Described embedded processor 3 comprises: the Field Programmable Logic Gate Array FPGA4 that image signal is denoised, corrects lens distortion preprocessing; Be connected with Field Programmable Logic Gate Array FPGA4 to rec...

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Abstract

The invention discloses an identity recognizer and recognizing method of human hand hypodermal vein vessel character, which comprises the following parts: CCD sensor, A / D switcher and insert-typed processor, wherein the identity recognizing method comprises the following steps: 1) establishing database; reserving hand hypodermal vein vessel character into SDRAM; proceeding digital image disposal through high-speed DSP chip; reserving identity character ID into database; 2) testing the identity; judging whether the ID in the database is legal.

Description

technical field [0001] The invention relates to the technical field of human biological feature identification. In particular, it involves a combination of optics, image processing, pattern recognition, biology, and embedded system multidisciplinary interdisciplinary technology, with high resolution and recognition rate, small size, stable system, and suitable for use in the field environment. An identification device for vein and blood vessel characteristics and an identification method thereof. Background technique [0002] Identification has always been an important part of human life and is closely related to people's daily life and work. Especially in some important departments such as national defense, military affairs, bank, it is a loaded down with trivial details and important work to check the legal identity of the personnel who enters and exits. Currently commonly used identification methods include special keys, electronic cards, passwords, etc., but there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/117G06K9/00A61B5/1171
Inventor 张宝峰朱均超张晓玲白文若李小飞
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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