1. State Key Lab of CAD&CG, Zhejiang University, Hangzhou, China
2. High-speed Aerodynamics Institute, China Aerodynamics Research and Development Center, China
3. College of Computer Science and Technology, Zhejiang University, Hangzhou, China
4. Department of Stomatology, Hangzhou Mingzhou Hospital, Hangzhou, China, and Taizhou Stomatology Hospital, Taizhou, China