混合样本协同表示算法的人脸识别研究

杨明中; 杨平先; 林国军

doi:10.3788/YJYXS20173212.0987

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混合样本协同表示算法的人脸识别研究

图像处理 | 更新时间：2020-07-07

- 混合样本协同表示算法的人脸识别研究
- Face recognition research based on variant samples and collaborative representation
- 液晶与显示 2017年32卷第12期页码：987-992
- 作者机构：
  
  四川理工学院自动化与信息工程学院, 四川自贡 643000
- 作者简介：
  
  [ "杨明中(1991-), 男, 四川南充人, 硕士研究生, 主研方向为图像处理、模式识别。E-mail:erdenzer@qq.com" ]
  杨平先, E-mail:ypingx@163.com
- 基金信息：
  
  四川理工学院科研项目(2015RC16);the Scientific Research Project of Sichuan University of Science and Engineering(2015RC16)
- DOI：10.3788/YJYXS20173212.0987
  中图分类号： TP391
- 收稿日期：2017-06-28，
  
  录用日期：2017-9-27，
  
  纸质出版日期：2017-12-05
- 稿件说明：
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杨明中, 杨平先, 林国军. 混合样本协同表示算法的人脸识别研究[J]. 液晶与显示, 2017,32(12):987-992.

Ming-zhong YANG, Ping-xian YANG, Guo-jun LIN. Face recognition research based on variant samples and collaborative representation[J]. Chinese journal of liquid crystals and displays, 2017, 32(12): 987-992.
杨明中, 杨平先, 林国军. 混合样本协同表示算法的人脸识别研究[J]. 液晶与显示, 2017,32(12):987-992. DOI： 10.3788/YJYXS20173212.0987.

Ming-zhong YANG, Ping-xian YANG, Guo-jun LIN. Face recognition research based on variant samples and collaborative representation[J]. Chinese journal of liquid crystals and displays, 2017, 32(12): 987-992. DOI： 10.3788/YJYXS20173212.0987.

摘要

在人脸识别中，人脸图像受到表情、光照、遮挡、姿态变化、特别是训练样本数量的影响，而现实中经常只获得少量的训练样本，由于原始样本生成虚拟样本可以增加训练样本的数量，分析提出原始样本与轴对称样本融合的协同表示算法。首先生成镜像样本与轴对称样本，再在协同表示分类器下分类，最后加权值融合，分析不同权值下的人脸识别率。实验结果显示原始样本、镜像样本与轴对称样本融合能提高识别率，而原始样本与轴对称样本融合的识别率更加优越，较原始样本，识别率提高2%~9%，比原始样本与镜像样本融合高1%~5%。结果表明本文提出方法能有效提高人脸识别率。

Abstract

For face recognition

the face image are affected by the variations of expression

lighting

occlusion

pose and especially the number of training samples. However

in practical application

we only have insufficient training samples. The collaborative representation algorithm of combining the original training samples with the axial-symmetry samples is proposed because the original training samples generate the corresponding virtual training samples to increase the number of training samples. Firstly

the original training samples generate the corresponding mirror samples and axial-symmetry samples. Secondly

the reconstruction errors are obtained by using collaborative representation based classification. Finally

the variant reconstruction errors are combined with different weighted number to compare face recognition rates. The experimental results show that the face recognition rates are increased by combining the original training samples with the mirror samples and the axial-symmetry samples. The face recognition rates of combining the original training samples with the axialsy-mmetry samples are 2%~9% and 1%~5% better than the original training samples and the original training samples with the mirror samples respectively. It shows that the paper's method is effective in face recognition.

关键词

Keywords

references

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XIANG X L, WU S, LONG W, et al. Face recognition based on the fusion of original sample and virtual sample[J]. Video Engineering, 2016, 40(9):117-121. (in Chinese)

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