I am a postdoc researcher at Faculty of Information Technology and Electrical Engineering, University of Oulu, Finland and work in the Center for Machine Vision and Signal Analysis (CMVS) Group. Before that I received my Ph.D degree in the Institute of Image Processing and Pattern Recognition, Department of Electronics and Information Engineering, Xi'an Jiaotong Univeristy, China, in Jul. 2015 and B.E degree from the Special Class for the Gifted Young in Electronic Engineering, Xi'an Jiaotong Univeristy. From Aug. 2015 to Mar. 2017, I was working as a Researcher at Innovative Technology Center, Academy of Electronics and Information Technology. From May 2017, I moved to of Oulu as a postdoc researcher.