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Face authentication method and device

An authentication method and an authentication device technology, which are applied in the field of biometrics, can solve problems such as high time and space complexity, inability to meet real-time performance, and low recognition rate, and achieve powerful simple calculation, low time complexity, and powerful reasoning ability Effect

Inactive Publication Date: 2015-12-09
BEIJING TECHSHINO TECH
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

These three face authentication methods have single features and low recognition rate; they are sensitive to illumination, posture, expression, occlusion, etc.; the corresponding time and space complexity is high, and they cannot meet the real-time requirements of practical applications.

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Embodiment Construction

[0025] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0026] On the one hand, the present invention provides a face authentication method, such as figure 1 shown, including:

[0027] Step S101: Obtain a face image sample pair;

[0028] In this step, according to different usage environments, the image sample pair can be composed of face images collected in real time and face images stored in the database, or can be composed of two face images stored in the database, or even composed of two face images Composition of face images collected in real time.

[0029] Step S102: Preprocessing the acquired face image sample pairs;

[0030] In this step, the main purpose of preprocessing the face image samples is to eliminate redundant information in the image, filter out interference and noise, and enhance the de...

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Abstract

The invention discloses face authentication method and device, and belongs to the field of biological recognition. The method comprises the following steps: obtaining face image sample pairs; carrying out preprocessing on the obtained face image sample pairs; extracting global and local local binary pattern (LBP) features from the preprocessed face image sample pairs, and fusing the global and local LBP features to obtain the fused features; and with the fused features as input, calculating and judging whether the face image sample pairs belong to the same person or not according to a joint bayesian classifier which is trained in advance. Compared with the prior art, the face authentication method and device have relatively high robustness on changes of illumination, expression and the like, and simultaneously have the advantages of being high in accuracy, good in stability and simple and convenient to calculate.

Description

technical field [0001] The invention relates to the field of biometric identification, in particular to a Bayesian face authentication method and device based on LBP features. Background technique [0002] As people pay more attention to the security and concealment of information, identity authentication technology becomes more and more important. Traditional identity authentication methods, such as ID cards and passwords, are cumbersome to use, and the biggest shortcoming is that they cannot distinguish between the owner and the imposter. Biological characteristics are inherent to human beings, and are unique and difficult to replicate. Therefore, research on biometric recognition is of great significance. [0003] Face authentication is to extract the effective features of two face images and use classification algorithms to judge whether the two face images are from the same person. Compared with biometric identification methods such as fingerprint recognition and iris...

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/168G06V40/172
Inventor 李旭王洋朱和贵张祥德
Owner BEIJING TECHSHINO TECH