Facial expression analysis using LBP features

doi:10.3778/j.issn.1002-8331.2011.02.046

Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (2): 149-152.DOI: 10.3778/j.issn.1002-8331.2011.02.046

• 图形、图像、模式识别 • Previous Articles Next Articles

Facial expression analysis using LBP features

LIU Weifeng，LI Shujuan，WANG Yanjiang

College of Information and Control Engineering，China University of Petroleum（East China），Dongying，Shandong 257061，China

Received:2009-08-24 Revised:2009-10-15 Online:2011-01-11 Published:2011-01-11
Contact: LIU Weifeng

人脸表情的LBP特征分析

刘伟锋，李树娟，王延江

中国石油大学（华东）信息与控制工程学院，山东东营 257061

通讯作者: 刘伟锋

Abstract

Abstract: In order to effectively extract facial expression feature，a novel facial feature extraction approach for facial expression recognition based on Local Binary Pattern（LBP） is proposed in the paper.Firstly，facial expression images’ gray level is normalized with the average-variance method.By doing integral projection，some critical facial feature points are located，such as eyebrow，eye，nose and mouth.Then sub-regions belong to each facial component are partitioned.And then facial expression features are presented with LBP histograms of each sub-region，which is divided into several blocks.To validate the rationality of the method proposed，experiments are implemented on JAFEE（Japanese female facial expression database） database.The results illustrate that the method proposed is effective to represent facial expression feature.

Key words: facial expression recognition, local feature extraction, Local Binary Pattern（LBP）

摘要： 为了有效提取面部表情特征，提出了一种新的基于LBP（局部二值模式）特征的人脸表情识别特征提取方法。首先用均值方差法对表情图像进行灰度规一化，通过对图像进行积分投影，定位出眉毛、眼睛、鼻和嘴巴这些关键特征点，进而划分出各特征部件所在子区域，然后对子区域进行分块，提取各个子区域的分块LBP直方图特征。为了验证所提出的方法的合理性，最后在JAFFE表情库上进行了实验，结果表明提出的方法能够有效地描述表情的特征。

关键词: 表情识别, 局部特征提取, 局部二值模式

CLC Number:

TP391.41

LIU Weifeng，LI Shujuan，WANG Yanjiang. Facial expression analysis using LBP features[J]. Computer Engineering and Applications, 2011, 47(2): 149-152.

刘伟锋，李树娟，王延江. 人脸表情的LBP特征分析[J]. 计算机工程与应用, 2011, 47(2): 149-152.

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Facial expression analysis using LBP features

人脸表情的LBP特征分析

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