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Gender identification method and system based on face image

A face image and gender recognition technology, applied in the field of face recognition, can solve the problems of no processing method and low gender recognition accuracy.

Inactive Publication Date: 2014-07-09
WINGTECH COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is still no better processing method, which makes the accuracy of existing gender identification not high.

Method used

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  • Gender identification method and system based on face image
  • Gender identification method and system based on face image
  • Gender identification method and system based on face image

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Embodiment 1

[0090] see figure 1 , the present invention discloses a gender recognition method based on a face image, the method comprises the following steps:

[0091] [Step S1] Face detection step.

[0092] In previous researches, most of the face detection algorithms are proposed on the basis of frontal face images. In order to better meet the needs of real life, the present invention adopts the Adaboost face detector with pyramid structure. The pyramid-structured face detector implements multi-pose face detection using a coarse-to-fine strategy.

[0093] In this pyramid structure, the top-level detector can detect faces in full poses, and the other layers can only detect faces in a certain pose, and the lower the layer, the more the detector can handle poses. The smaller the size, the more complex the structure; the higher the top level, the larger the range and the smaller the number of poses processed by the detector. In this way, the large background can be removed at each layer,...

Embodiment 2

[0142] In the gender recognition system of the present invention, the gender recognition of a face image can be specifically divided into four parts: a face detection module, an image preprocessing module, a facial feature extraction module and a gender classification module. image 3 shown. In the present invention, the face image is detected and calibrated first, then the median filter is used to remove noise, the composite LBP is used for feature extraction, and finally the gender is identified by the SVM model.

[0143] The core of gender recognition based on face images is the selection of feature extraction and classification methods. In previous studies, gender recognition based on facial features is mostly based on the feature extraction and classification methods of face recognition.

[0144]Because the actual environment has a great influence on the correct classification of face gender recognition, the obtained image must be preprocessed, that is, for any given ima...

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Abstract

The invention discloses a gender identification method and system based on a face image. The method includes the following steps that firstly, the face image is preprocessed; the face image is converted into a grey level image firstly, then a face area image is cut from the whole image according to the positions of the eyes to obtain the face area image, and finally de-noising processing is performed on the face area based on histogram equalization; secondly, a composite LBP is used for performing feature extraction, a zoom LBP is used for conducting zoom and multiple setting on the image, then a multi-scale LBP is used for dividing the face image into a plurality of areas according to different sizes of LBP histogram areas, LBP feature extraction is performed on the image and each divided area, and all LBP histogram features are combined together to serve as multi-scale LBP features of the image; thirdly, gender identification is performed based on an SVM model. According to the gender identification method and system, the gender of the face can be identified according to the face image, and the identification accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of face recognition, and relates to a face recognition system, in particular to a gender recognition method based on a face image; at the same time, the invention also relates to a gender recognition system based on a face image. Background technique [0002] With the wide application of biometric technology in human-computer interaction, identity verification, demographics, etc., gender recognition as an important branch has attracted more and more scholars at home and abroad to study it. Faces have important information about human biometrics and can express social interactions between people. Gender recognition based on face images is a typical application of face image classification. With the widespread use of smart phones and the improvement of the quality of mobile phone cameras, mobile phones, as the most convenient image acquisition device, will play a crucial role in gender recognition of face imag...

Claims

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Application Information

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IPC IPC(8): G06K9/00
Inventor 李保印
Owner WINGTECH COMM
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