1. School of Communications and Information Engineering and the School of Artificial Intelligence, Xi’an University of Posts and Telecommunications, Shaanxi, Xi’an, China
2. Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, School of Life Science and Technology, Xidian University, Shaanxi, Xi’an, China
3. Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
4. School of Medical Imaging, Nanjing Medical University, Jiangsu, Nanjing, China
5. School of Information Science and Engineering, Shandong Normal University, Shandong, Jinan, China