Face recognition method based on Haar-like features and eigenface recognition

A HAL feature and face recognition technology, applied in the field of adaptive face recognition, can solve the problems of insufficient reliability and low anti-noise ability

Inactive Publication Date: 2015-06-17
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

However, the structure of the feature space is easily affected by the irregular samples in the sample, which affects the two links of feature extraction and similarity calculation at the same time, resulting in low noise resistance and insufficient reliability.

Method used

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  • Face recognition method based on Haar-like features and eigenface recognition
  • Face recognition method based on Haar-like features and eigenface recognition
  • Face recognition method based on Haar-like features and eigenface recognition

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Embodiment Construction

[0033] The specific structure of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] First, the basic flow of the face recognition method based on Haar feature and eigenface recognition is described, and the process is divided into initialization stage, training stage, and recognition stage;

[0035] A. Reference figure 1 The initialization phase is described, and the specific steps are as follows:

[0036] (1) collect m 1 A target facial image is used as a positive sample, and m 0 The faces in the standard face library are used as negative samples, and the positive samples and negative samples constitute m training samples, where m=m 1 +m 0 ;

[0037] (2) Use the image size as a template to generate n non-repetitive rectangular filters, and each rectangular filter corresponds to a Haar feature operator h i ,i=1,2,...n, where n = 2 ...

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Abstract

The invention discloses a face recognition method based on Haar-like features and eigenface recognition. According to the method, on the basis that low-dimension feature space is constructed based on Haar-like features and a principal component analysis technology to perform feature extraction, a model is built by a classier technology, and a linear feature combination idea in an old method is improved; and the essence of the introduction of a classifier is to replace a traditional linear model with a nonlinear model so that the accuracy of recognition is greatly increased.

Description

technical field [0001] The invention relates to a face recognition method based on Haar feature and eigenface recognition, in particular to an adaptive face recognition method using a classifier for online training, and belongs to the technical field of image pattern recognition. Background technique [0002] The general process of face recognition is as follows: the system inputs a face image with unidentified identity as the sample to be recognized, and several face images with known identities in the face database as training samples, and outputs the similarity of the sample to be recognized through the algorithm. degree to demonstrate protection of the identity of persons in unidentified facial images. The face recognition method mainly includes two parts: feature extraction and similarity calculation. [0003] The current relatively successful face recognition method is the eigenface method proposed by Viola and Jones in 2001. This method uses Haar features and princip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06F9/46
Inventor 霍跃华杜东壁曹洪治
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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