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Method and device for extracting human face texture

A texture and face technology, applied in the field of image processing, can solve the problem of inconspicuous facial texture information features, and achieve the effect of facilitating recognition processing and highlighting facial texture features

Active Publication Date: 2019-03-08
SHENZHEN TCL DIGITAL TECH CO LTD
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method for extracting human face texture, aiming to solve the problem that the extracted human face texture information features are not significant in the existing process of extracting human face texture through 2D-Gabor filtering

Method used

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  • Method and device for extracting human face texture
  • Method and device for extracting human face texture
  • Method and device for extracting human face texture

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no. 1 example

[0071] refer to image 3 , image 3 It is a schematic flowchart of the second embodiment of the method for extracting human face texture in the present invention. Based on the first embodiment of the method for extracting human face texture, the step S20 includes:

[0072] Step S21, extracting a partial image containing facial organs from the face image;

[0073] Read a face image, and extract a partial image containing facial organs from the face image, and the facial organs include eyes, eyebrows, nose or mouth, etc. Partial images containing one of the facial organs such as eyes, eyebrows, nose or mouth can be extracted from the face image for processing; More than one partial image of a facial organ is processed. Preferably, partial images containing eyes, eyebrows and mouth are extracted from the face image, and in the process of facial expression recognition, the texture features of eyes, eyebrows and mouth are more conducive to distinguishing different faces with di...

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Abstract

The invention discloses a method for extracting human face texture. The method for extracting human face texture includes the following steps: reading a human face image; performing 2D-Gabor filter processing on the human face image to generate a plurality of initial texture images ; Grouping the plurality of initial texture images on average; extracting feature images from each group of initial texture images, and outputting the feature images. The invention also discloses a device for extracting human face texture. The invention eliminates some unimportant texture features in the initial texture image, so that the extracted human face texture features are more prominent, which is beneficial to recognition processing.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and device for extracting human face texture. Background technique [0002] The 2D-Gabor filter is a short-time Fourier transform that can achieve local optimization in the spatial and frequency domains. When using the 2D-Gabor filter to extract face texture, it is often necessary to perform 2D-Gabor filtering in multiple directions and multiple scales, which has good direction selectivity and frequency in the spatial domain and frequency domain, and the extracted facial features It is relatively comprehensive and can effectively express the information of a face image. At present, in the process of extracting face texture through 2D-Gabor filtering, due to the relatively fine division of texture features, there is a problem that the extracted texture features are not significant, and some similar texture features will interfere with face feature recognition. [0003] T...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V10/40G06V40/168
Inventor 王甜甜江中央
Owner SHENZHEN TCL DIGITAL TECH CO LTD
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