Journal of Computer Applications ›› 2005, Vol. 25 ›› Issue (11): 2581-2583.

• Network and distributed techno • Previous Articles     Next Articles

PCA-based location algorithm of human face features

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  1. School of Electronic & Information Engineering,South China University of Technology,Guangzhou Guangdong 510640,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2005-11-01 Published:2005-11-01

基于主元分析的人脸特征点定位算法的研究

王琢玉贺前华   

  1. 华南理工大学电子与信息学院
  • 基金资助:

    家自然科学基金资助项目(60172064);;广东省自然科学基金资助项目(36562)

Abstract: An PCA-based location algorithm of human face features was presented.Eigenmouth was generated by prinicipal component analysis(PCA) with labelled mouth region image set.For an input image,the mouth region was recognized according to least residual error energy(LREE) criteria after the face region was first located.Then a restricted window scan stategy and comparability mearsurement P were introduced into the LREE algorithm.Experiment results show that the proposed method can locate mouth region easily,accurately and robustly.

Key words: PCA(Principal Component Analysis), eigenmouth, LREE(Least Residual Error Energy), comparability mearsurement

摘要: 研究了一种基于主元分析的人脸目标区域定位算法。首先对训练集中的头肩像通过手工定位嘴部区域,进行PCA训练提取嘴部的主元特征矢量(eigenmouth);然后在输入图像人脸初定位的基础上,利用嘴部的主元特征,通过最小剩余误差能量的判决准则实现人脸嘴部区域的自动定位。其间,引入了受限窗扫描策略以提高算法的效率;并利用两种空间定位后相似度比较判决的方法大大提高了算法的鲁棒性。实验证明此方法具有简单易实现、定位精确度高、鲁棒性好的优点。

关键词: 主元分析, 特征嘴, 最小剩余误差能量, 相似度

CLC Number: