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A face feature extraction method and device based on lbp

A face feature and feature extraction technology, applied in the computer field, can solve the problems of the accuracy of feature extraction and the insufficient expression of facial texture detail information, and achieve the effect of improving accuracy

Active Publication Date: 2018-07-10
珠海中科先进科技产业有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a face feature extraction method based on LBP, which aims to solve the problem of feature extraction due to insufficient expression of face texture details by single-scale LBP in the prior art. Problems where accuracy suffers

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  • A face feature extraction method and device based on lbp
  • A face feature extraction method and device based on lbp
  • A face feature extraction method and device based on lbp

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] In the embodiment of the present invention, different radii are used to extract the LBP feature of the face image, so as to obtain the LBP features of the face image at multiple scales, realize the complete expression of the texture information of the face, and effectively improve the The accuracy of face feature extraction is improved.

[0021] figure 1 The implementation flow of the LBP-based face feature extraction method provided by the embodiment of the present invention is shown, and the details are as follows:

[0022] In S101, block the face image to obtain N image blocks, where N ...

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Abstract

The present invention is applicable to the field of computer technology, and provides a method and device for extracting human face features based on LBP, comprising: dividing a human face image into blocks to obtain N image blocks, wherein N is an integer greater than 1; Perform multi-scale LBP feature extraction on each of the image blocks to obtain the multi-scale LBP features of each of the image blocks; combine the multi-scale LBP features of the N image blocks and perform normalization process to obtain the LBP feature of the face image. In the present invention, different radii are used to extract the LBP feature of the face image, so as to obtain the LBP feature of the face image at multiple scales, realize the complete expression of the texture information of the face, and effectively improve the human face image. Accuracy of face feature extraction.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a method and device for extracting human face features based on LBP. Background technique [0002] Face recognition is a technology based on human facial feature information through computer identification. When a face is given, the face recognition algorithm is used to pre-store many faces of different identities in the database. Search and match the face most similar to the given face, then the identity of the given face is the identity corresponding to the matched face. At present, face recognition technology is widely used in the fields of security and information security. [0003] The core of face recognition technology is the extraction of face features. At present, the most commonly used feature extraction is Local Binary Patterns (LBP). However, the face finally extracted through the existing single-scale LBP algorithm The feature does not fully express t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/46
Inventor 冯良炳
Owner 珠海中科先进科技产业有限公司