1. College of Information Engineering, Shanghai Maritime University, Shanghai, China
2. School of Automation, Key Laboratory of Measurement and Control of CSE, Southeast University, Nanjing, China
3. Information Processing and Systems Department (DTIS), The French Aerospace Laboratory, ONERA, Palaiseau, France
4. Department of Electrical and Computer Engineering, Interactive Digital Media Institute, Social Robotics Laboratory, National University of Singapore, Singapore, Singapore