Identification and authenticaton method

A technology of identity recognition and identification method, which is applied in the direction of character and pattern recognition, instruments, computer components, etc., can solve the problems of cumbersome operation, high cost, and poor reliability, and achieve low operating cost, high reliability, and high efficiency. Effect

Inactive Publication Date: 2004-10-27
THE CHINESE UNIVERSITY OF HONG KONG
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Problems solved by technology

However, these existing technologies have their own shortcomings
For example, fingerprints can be concealed in latex, faces can be faked through photos, and voices can be imitated, so the reliability of identification is poor; in addition, identification methods based on EEG or ECG require several electrodes to collect biometric signals , cumbersome and costly

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  • Identification and authenticaton method
  • Identification and authenticaton method

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Embodiment Construction

[0022] Photoelectric volume signal (PHOTOPLETHYSMOGRAPHIC SIGNAL, hereinafter referred to as PPG signal) has a high diagnostic value in blood pressure measurement. Each heartbeat of the human body will produce a pulse, that is, the PPG waveform, such as figure 1 As shown, the figure shows a schematic diagram of a typical PPG pulse, wherein the PPG pulse 100 reflects the change of blood volume (x-axis) with time (t-axis). This pulse propagates within the body's blood circulatory system and can be detected non-invasively by a photoplethysmometer. figure 2 and image 3 The shown shows the PPG signals detected by the test object A and the test object B at two different times respectively, the PPG waveforms of the test object A are 200, 210, and the PPG waveforms of the test object B are 300, 310. From figure 2 and image 3 It can be seen that although the characteristics of the PPG signal of each individual will vary with the change of the detection site and detection time, ...

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Abstract

The invention relates to a new id authentication method based on biologic characteristic signal of human body. The method apples photoelectricity volumetric change signal (PPG) to id authentication system, including following steps: picking up biologic characteristic signal of person to be authenticated and creating eigenvectors of biologic characteristic signal; comparing the said eigenvectors of the person to be authenticated with characteristic template of authenticated person stored in database in advance; based on comparison, conclusion is made. The method is non-traumatic and is possible to combine with other biologic characteristic techniques.

Description

technical field [0001] The present invention relates to an identification and identification method, in particular to an identification and identification method based on human biological feature information, which extracts the biological feature signal of the identification object and generates a feature vector of the biological feature signal accordingly, and Pattern matching is performed on the feature template of the authenticator in a pre-stored database, and an identification conclusion is made according to the matching result. Background technique [0002] Human biological characteristics or behavioral characteristics are studied to be applied in the field of identification and authentication. What is widely used at present is to use face, fingerprint, voice, iris, lip movement, gait, EEG, ECG, etc. to carry out identification. However, these existing technologies have their own drawbacks. For example, fingerprints can be concealed in latex, faces can be faked throu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/36G06K9/46
Inventor 张元亭张妍顾颖颖
Owner THE CHINESE UNIVERSITY OF HONG KONG
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