1. Department of Biomedical Engineering, City University of Hong Kong, Hong Kong SAR, China.
2. Department of Computer Science, University of Hong Kong, Hong Kong SAR, China.
3. Department of Mechanical Engineering, City University of Hong Kong, Hong Kong SAR, China.
4. Robotics Institute, Carnegie Mellon University, Pittsburgh, PA, USA.
5. Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, China.
6. City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China.