1. The Chair for Computer Aided Medical Procedures and Augmented Reality, Technical University of Munich, Munich, Germany
2. The College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
3. Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
4. The Department of Electrical and Computer Systems Engineering, Monash University, Clayton, AU-VIC, Australia
5. The Laboratory for Computer Aided Medical Procedures, Johns Hopkins University, Baltimore, MD, USA.