1. Chair for Computer Aided Medical Procedures and Augmented Reality (CAMP), School of Computation, Information and Technology, Technical University of Munich, Garching, Germany
2. Bristol Robotics Laboratory, University of the West of England, Bristol, U.K.
3. College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
4. Institute of Biological and Medical Imaging, Helmholtz Zentrum Munchen, Neuherberg, Germany