基于2DPCA+PCA与SVM的人脸识别

Face recognition based on 2DPCA + PCA and SVM

为了提高传统PCA与SVM相结合的人脸识别算法的性能,文中提出了一种基于双向压缩的2DPCA+PCA与遗传算法SVM相结合的人脸识别算法。该算法采用双向压缩的2DPCA与PCA相结合的算法来进行人脸特征提取,有效地减少了特征数量和PCA模型的计算时间;在与SVM相结合时,其训练时间和识别时间都有所降低,且提高了识别率;同时为了进一步提高SVM的性能,文中采用遗传算法来进行SVM参数寻优,并使用交叉测试识别率来作为适应度函数。在ORL人脸库上的实验表明,该算法的性能明显高于传统PCA与SVM相结合的人脸识别算法。

To improve the performance of the face recognition algorithm based on PCA and SVM,this paper puts forward a novel method based on bi-directional compression 2 DPCA + PCA and GA-based SVM,which uses bi-directional compression 2 DPCA combined with PCA for facial feature extraction,effectively reducing the number of features and the computation time of PCA model. It combined with SVM,the training and recognition time are reduced,and the recognition rate is improved. Meanwhile,in order to further improve the performance of SVM,it uses genetic algorithm( GA) to optimize SVM parameters,and apply the cross-test results for a fitness function. The experiments on ORL face database show that the performance of the algorithm is significantly higher than the traditional face recognition algorithm based on PCA and SVM.