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A face recognition method and system based on joint sparse discriminant analysis

A face recognition and discriminant analysis technology, applied in character and pattern recognition, instruments, computing, etc., can solve the problem of unsatisfactory recognition rate of face recognition system

Active Publication Date: 2021-05-18
SHENZHEN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a face recognition method based on joint sparse discriminant analysis, aiming to solve the problem of the recognition rate of the face recognition system under the situation that there are many changes in the face in terms of illumination, angle, expression, camouflage and posture. suboptimal technical issues

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  • A face recognition method and system based on joint sparse discriminant analysis
  • A face recognition method and system based on joint sparse discriminant analysis
  • A face recognition method and system based on joint sparse discriminant analysis

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[0066] figure 1 The flow chart of the face recognition method based on joint sparse discriminant analysis provided by the present invention is shown, and the weather book is as follows:

[0067] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0068] Suppose the face image matrix X=[x 1 , x 2 ,...,x n ]∈R d×n , where n is the number of training samples, and d is the size of each sample image. By projecting the original high-dimensional data to a low-dimensional projection matrix B∈R d×k (k is the image size after dimensionality reduction, k≤d) to achieve dimensionality reduction and feature extraction. The method comprises the steps of:

[0069] Step S1, establishing a database storing face training images of known identities;

[0070] The establishment of the database of described human face training image comprises the following steps:

[0071] S11, collecting color or black and white pic...

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Abstract

The present invention is applicable to the field of computer vision technology improvement, and provides a face recognition method based on joint sparse discriminant analysis, comprising: A, establishing a database for storing face training images of known identities; B, faces to be detected for identities Detect and collect data and establish a face database with authentication; C. Extract special evidence from the face data to be authenticated and training data and build a discriminant analysis model based on joint sparse representation; D. Use the training after feature extraction in step C The data and the data to be authenticated are combined with the corresponding label information, and the nearest neighbor classifier is used for discriminant analysis to calculate the result of face recognition. Using joint sparse discriminant analysis to identify the face picture to be authenticated improves the accuracy of authentication and effectively improves the robustness of recognition under the condition that the face to be authenticated has many changes in illumination, angle, expression, camouflage, and posture. sex.

Description

technical field [0001] The invention belongs to the field of computer vision technology improvement, in particular to a face recognition method and system based on joint sparse discriminant analysis. Background technique [0002] In recent years, with the development of social economy, the standard of human life is getting higher and higher. While enjoying the great changes brought about by high-tech products to the traditional way of life, people are constantly exploring a smarter and more humane way of life. Innovative concepts such as "Internet +" and "Smart City" have emerged in the trend of technological development. The country, government, and enterprises have all attached great importance to the construction of artificial intelligence. At present, the development of technology in the field of computer vision has made great contributions to society. Technologies such as fingerprint recognition and face recognition have been widely used in entry-exit identity verific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/172G06F18/2136G06F18/2135G06F18/24147
Inventor 赖志辉莫冬梅
Owner SHENZHEN UNIV
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