中文摘要：

Ting Zhang received the B. Sc. degree in communication engineering from Beijing Jiaotong University, China in 2013, Site is currently a Ph. D. degree candidate in the National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, China. Her research interests include deep learning and face recognition.E-mail： ting.zhang@nlpr.ia.ac.cn ORCID iD： 0000-0001-9145-5913 Ri-Zhen Qin received the B. Sc. degree in automation from the Xidian University, China in 2013, received the M. Sc. degree from the National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, China in 2016. His research interests include machine learning and face recognition. E-mail： rizhen.qin@nlpr.ia.ac.cn Qiu-Lei Dong received the B. Sc. degree in automation from the Northeastern University, China in 2003, received the Ph.D. degree from the Institute of Automation, Chinese Academy of Sciences, China in 2008. Currently, he is a professor in the National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, China. His research interests include motion analysis, 3D computer vision and pattern classification. E-mail： qldong@nlpr.ia.ac.cn （Corresponding author） ORCID iD： 0000-0003-4015-1615 Wei Gao received the B.Sc. degree in computational mathematics, the M. Sc. degree in pattern recognition and intelligent system from Shanxi University, China, and the Ph.D. degree in pattern recognition and intelligent system from Institute of Automation, Chinese Academy of Sciences, China in 2002, 2005 and 2008, respectively. Since July 2008, he has joined Robot Vision Group of NationM Laboratory of Pattern Recognition where he is currently an associate professor. His research interests include 3D reconstruction from images and SLAM technology. E-mail： wgao@nlpr.ia.ac.cn Hua-Rong Xu received the M. Sc. and the Ph.D. degrees in computer science from Xiamen University, China in 2003 and 2011, respectively. Now he is a professor of Xiamen