1. Yunnan University,School of Information and Yunnan Key Laboratory of Intelligent Systems and Computing,Kunming,China,650504
2. Nanfang Hospital, Southern Medical University,Laboratory for Quality Control and Evaluation of Radiopharmaceuticals,Department of Nuclear Medicine,Guangzhou,China,510515
3. Southern Medical University,School of Biomedical Engineering and Guangdong Provincial Key Laboratory of Medical Image Processing,Guangzhou,China,510515