标题：Automatic Face Recognition Based on Sparse Representation and Extended Transfer Learning
作者：Liu Z.; Jiang D.; Li Y.; Cao Y.; Wang M.; Xu Y.
作者机构：[Liu, Z] School of Information Science and Engineering, Shandong University, Qingdao, 266237, China.;[ Jiang, D] School of Electronic Information, Qin 更多
关键词：Classification algorithms; Face recognition; Face recognition; Image reconstruction; Image representation; Knowledge transfer; Minimization; Pattern recognition; Robustness; Task analysis; Training
摘要：Sparse representation has exhibited excellent performance in face recognition. However, this method requires some areas for improvement, especially on insufficient face samples. We aim to design a simple and efficient method to improve sparse representation to solve problems with a small sample size. This study provides two primary contributions that are very effective in small sample face recognition. First, in order to enhance recognition robustness, we designed an intuitive and mathematically controllable transfer learning method of sparse representation by introducing labeled samples. Second, to obtain high recognition accuracy, we developed a weighted fusion scheme to integrate the sparse representation results generated from original and labeled samples. In the ORL dataset, our algorithm’s highest accuracy rate is 95%. In the FERET dataset, our highest classification accuracy rate is 95%. In the more complex LFW dataset, our highest classification accuracy rate has also reached 83.33%. This shows that our experimental results demonstrate that the proposed method can obtain sufficient performance, whereas the weighted fusion scheme can take advantage of sparse representation on the basis of original and labeled samples. This work will be very useful for identification based on the internet-of-medical-things. OAPA