1. Key Laboratory of Biomedical Engineering of Hainan Province, School of Biomedical Engineering, Hainan University, Haikou 570228, P. R. China
2. Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, P. R. China
3. School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, P. R. China
4. School of Information and Communication Engineering, Hainan University, Haikou 570228, P. R. China
5. Key Laboratory for Matter Microstructure and Function of Hunan Province, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control, School of Physics and Electronics, Hunan Normal University, Changsha 410082, P. R. China
6. National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, P. R. China