Institution: | (1) Key Laboratory of Opto-Electronic Technology and Intelligent Control, (Lanzhou Jiaotong University), Ministry of Education, P.O. Box 73, 118 West Anning Road;(2) Lanzhou Jiaotong University, Lanzhou, 730070, Gansu, P.R. China; Email;(3) School of Information Science and Engineering, Lanzhou University, Lanzhou, 730000, Gansu, P.R. China |