1. Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, China
2. Department of System Science and Engineering, Huazhong University of Science and Technology, Wuhan, China
3. Department of Biomedical Engineering and the Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
4. Center for Biomedical Imaging, University of Science and Technology of China, Hefei, China
5. Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, China