基于LBP的拉普拉斯特征映射人脸识别

Face Recognition with Laplacian Eigenmaps on Local Binary Pattern

  • 摘要: 局部二元模式算子法计算简单且易于实现,能有效地提取人脸局部结构的纹理特征。拉普拉斯特征映射算法是一种经典的非线性降维法,其优化过程无局部最小问题。鉴于以上优点,提出了一种基于局部二元模式的拉普拉斯特征映射人脸识别方法。该算法首先采用均匀模式的LBP算子提取人脸特征,再用LE算法进行非线性降维,最后用SVM进行分类识别。分别选取了ORL人脸库中每人前3,5,7,9幅样本作为训练集进行了实验,并与其他算法进行了比较分析,证明了该算法的有效性。

     

    Abstract: Local Binary Pattern (LBP) operator is very simple to calculate and implement. It can efficiently extract facial texture feature which represents the local structure of face images. Laplacian Eigenmaps (LE) is a classical non-linear data dimensionality reduction method. Its main optimization do not involves local minima. Benefiting from the advantages of both them, a new approach to face recognition is constructed by combining LBP operator and LE. At first, the uniform LBP operator is used to extract the facial texture feature; then LE algorithm is used for data dimensionality reduction; finally, support vector machine (SVM) is used for classification. Extensive experiments are carried out by choosing the former 3,5,7,9 images of each subject as training set. Compared with other algorithms, the results show that the combination of LBP_LE provides better performance than that of them and prove the effectiveness of the presented algorithm.

     

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