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Wavelet analysis and Welch algorithm personal identification method

A technology of wavelet analysis and identification, applied in the fields of biomedical engineering and information, can solve the problems of finger injury, easy imitation and embezzlement of voiceprint recognition, etc.

Inactive Publication Date: 2010-05-12
江西蓝天学院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commonly used biometric technologies have one or another problem, such as face recognition is useless for twins; voiceprint recognition is easy to imitate; fingerprint recognition will be affected by finger injuries, and it is also easy to embezzle

Method used

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  • Wavelet analysis and Welch algorithm personal identification method
  • Wavelet analysis and Welch algorithm personal identification method
  • Wavelet analysis and Welch algorithm personal identification method

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Experimental program
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Embodiment Construction

[0037] Which subject is identified by selecting the EEG signal from several subjects. Specific embodiments of the invention

[0038] Attached figure 1 , 2 , 3, 4. Can include the following methods:

[0039] 1. Train the subjects, through stimulation mode training, collect the EEG signal characteristics of the subjects in different motor imagery processes, and collect the signals of 6 electrodes that meet the 10 / 20 international standard according to 64 channels; the specific electrode positions are as follows: figure 1 shown.

[0040] 2. The collected EEG signals are preprocessed (specifically as shown above) and then input into the feature extraction system.

[0041] 3. EEG signal feature extraction system, according to figure 2 The shown process extracts the EEG signal characteristics of each subject, learns and recognizes through the BP neural network, and determines the neural network structure. image 3 The shown procedure trains a neural network.

[0042] 4. Ac...

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PUM

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Abstract

The invention provides a wavelet analysis and Welch algorithm personal identification method, belonging to the technical field of neural engineering in the biomedical engineering. The method comprises the following steps: preparation of simulation programs: the simulation programs are realized through programming languages according to a certain thought and are debugged in advance; acquisition of electroencephalogram (EEG) signals: 6 electrodes are selected to acquire the EEG signals of the participants having different motor imagery processes; preprocessing of the EEG signals; extraction of the features of the EEG signals: a system for extracting the features of the EEG signals is adopted to extract the features of the EEG signals of each participant mainly by applying wavelet analysis and the Welch algorithm; and identification of the EEG signals: the unknown EEG data are input into a neural network to be identified and authenticated. The method is suitable for the population suffering from physical disabilities and visual defects, and has good applicability.

Description

technical field [0001] The technical invention belongs to the fields of biomedical engineering and information technology. technical background: [0002] In today's information age, how to accurately identify a person's identity and protect information security has become a key social problem that must be solved. Due to the fact that traditional identity authentication is extremely easy to be forged and lost, it is increasingly difficult to meet the needs of the society. The most convenient and safe solution at present is undoubtedly biometric technology. It is not only simple and fast, but also uses it to identify the identity, which is safe, reliable and accurate. At the same time, it is easier to integrate with computers and security, monitoring, and management systems to realize automated management. Due to its broad application prospects, huge social and economic benefits, it has attracted widespread attention and great attention from all countries. Each individual h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/117G06F17/00G06N3/02A61B5/0476
Inventor 胡剑锋蒋德荣包学才
Owner 江西蓝天学院
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