1. School of Medical and Information Engineering, Gannan Medical University, Ganzhou 341000, China
2. College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, China
3. College of Physics and Electronics, Hunan Institute of Science and Technology, Yueyang 414000, China
4. School of Electronic Information and Electrical Engineering, Changsha University, Changsha 410022, China
5. Institute for Infrastructure Engineering, Western Sydney University, Locked Bag 1797, Penrith, NSW, 2751, Australia