1. School of Computer and Technology, Anhui University Hefei, Anhui, China
2. Department of Mathematics and Physics, Hefei University, Hefei, Anhui, China
3. Computer Science and Center for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern, Polytechnical University, Shanxi, Xi'an, China
4. College of Computer Science, Chongqing University, Chongqing, China
5. Department of Information and Communication Engineering, Youngman University, Geongsan, Korea
6. Key Lab of Intelligent Computing and Signal Processing of MOE & School of Computer and Technology, Hefei, Anhui, China