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Palm type and palm vein feature extraction and recognition method

A feature extraction and identification method technology, applied in biometric identification, subcutaneous biometrics, character and pattern recognition, etc., can solve problems such as hidden dangers of property safety, avoid theft accidents, and improve the safety factor.

Pending Publication Date: 2021-06-25
聂为清
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  • Claims
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AI Technical Summary

Problems solved by technology

At present, most of these door locks or access control devices use fingerprint recognition to effectively prevent theft. Although the safety factor has been greatly improved, when some criminals use fingerprint film to steal, these devices will exist. A large loophole has brought great security risks to people's property

Method used

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  • Palm type and palm vein feature extraction and recognition method
  • Palm type and palm vein feature extraction and recognition method
  • Palm type and palm vein feature extraction and recognition method

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Embodiment Construction

[0050] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely intended to illustrate the invention and are not intended to limit the invention.

[0051] A palm-shaped palm feature extraction, including palm-type feature extraction and facial features extraction.

[0052] Among them, the specific steps of extracting the palm-type feature are as follows:

[0053] Step 1, first get the palm image with vein, specifically figure 2 .

[0054] Step 2, then pass the filter and other algorithms, get the palm binarized image, specifically see image 3 .

[0055] Step 3, then pass the scan and other algorithms, get the four valleys between the palms of each fingertips, and the four valleys are P1, P2, P3, P4, respectively. Figure 4...

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Abstract

The invention discloses a palm type and palm vein feature extraction and recognition method. The method comprises the following steps: registering a known individual, collecting a palm image, extracting palm type features, writing the palm type features into a database, calculating to obtain palm key points, intercepting and enhancing a corresponding ROI image, and extracting palm vein features, and writing the palm vein features into the database; authenticating and recognizing a recognized person, acquiring a palm image, extracting palm shape features, calculating to obtain palm key points, intercepting and enhancing a corresponding ROI (Region of Interest) image, and extracting palm vein features; adopting a Hamming distance to calculate a matching comparison score between the palm vein features and a database; adopting a polygon similarity method to calculate a matching comparison score between the palm shape features and a database; setting a palm vein matching comparison sub-threshold value and a palm shape matching comparison sub-threshold value; setting palm vein matching comparison sub-weights and palm shape matching comparison sub-weights; identifying the palm shape and the palm vein quickly, thus the method can be widely popularized and used on devices / systems such as security anti-theft / authentication identification and the like.

Description

Technical field [0001] The present invention relates to the technical field of feature extraction and identification methods, especially a hand-type palm feature extraction and recognition method. Background technique [0002] With the continuous development of society, people are constantly improving their awareness. Smart door locks, intelligent access control, etc. Some columns are also widely popular in various industries. At present, this type of door lock or access control is mostly using fingerprint recognition to make effective anti-theft, although it has been greatly improved on the safety factor, when faced with some criminals, these devices will exist. Very large vulnerabilities have brought a lot of safety hazards to people's property. Inventive content [0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above background, it provides a hand-type palm feature extraction and recognition method, which c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/10G06V40/14
Inventor 聂为清聂一晓
Owner 聂为清
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