1. CINTRA CNRS/NTU/THALES UMI 3288 Research Techno Plaza 50 Nanyang Drive Border X Block Singapore 637553 Singapore
2. School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
3. School of Automation Hangzhou Dianzi University Hangzhou Zhejiang 310018 China
4. Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging Department of Biomedical Engineering School of Medicine Shenzhen University Shenzhen 518060 China
5. Department of Biomedical Engineering The Chinese University of Hong Kong New Territories Hong Kong SAR 999077 China