The techniques of eigenfaces and Binary Tree Support Vector Machine(BT-SVM) classifier are combined to recognize face in this paper.A series of eigenfaces are firstly established from the training images,and the training and testing images are projected into the space spanned by the eigenfaces,producing the coefficients.The BT-SVM classifiers are built with training coefficients,which are used for classifying training and testing images,and recognition accuracy percentage values are calculated.The experimen...