1. Key Laboratory of Human Motion Analysis and Rehabilitation Technology of the Ministry of Civil Affairs, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China
2. State Key Laboratory of Virtual Reality Technology and System, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China