1. College of Electronics and Information Engineering, Guangdong Key Laboratory of Intelligent Information Processing, Shenzhen University, Shenzhen, China
2. School of Computer Science and Engineering, Macau University of Science and Technology, Macau, China
3. Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Medical School, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Shenzhen University, Shenzhen, China