Finger vein identification method based on relative distance

A finger vein and recognition method technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve the problems of no good positioning method, difficult to extract features, and increase of training samples, so as to improve the recognition effect. Recognition speed and accuracy, robust effects
CN101853378AInactive Publication Date: 2010-10-06HARBIN ENG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN ENG UNIV
Publication Date
2010-10-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a finger vein identification method based on relative distance. The method comprises the steps of: carrying out partitioning and refining operations on a read-in finger vein image, extracting end points and intersections of the refined finger vein image to be used as a characteristic point set, defining the structural types of characteristic points, and finally carrying out matching of the finger vein image by calculating distances among the characteristic points for identity recognition. The invention is simple and easy to operate without positioning, reduces work load, improves recognition speed and accuracy, effectively overcomes influences of translation, rotation and the like on a recognition result, ensures that the system is improved in the aspect of recognition effect and has practical application value and development potential.
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Description

technical field

[0001] The invention relates to a method for feature extraction and recognition of finger veins, belonging to the technical field of biometric identification. Background technique

[0002] Biometric identification technology is a technology that relies on human biological characteristics for identity authentication. It has the advantages of not being forgotten, lost, forged and counterfeited. It is replacing traditional methods and gradually becoming the preferred convenient and reliable identification method in daily life. Among them, finger vein recognition technology, as an emerging human body feature recognition technology, has attracted much attention in recent years because of its advantages of non-contact, anti-interference and anti-counterfeiting, and has great development potential. Generally, near-infrared light is used to irradiate the skin for non-contact collection. When the wavelength range of near-infrared light is 0.72 μm to 1.10 μm and the sk...

Claims

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