1. National Key Laboratory of Human-Machine Hybrid Augmented Intelligence, National Engineering Research Center for Visual Information and Applications, Institute of Artificial Intelligence and Robotics, Xi'an Jiaotong University, Xi'an, China
2. Centre for Smart Health, School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China
3. Department of Electronic and Information Engineering, Photonics Research Center, The Hong Kong Polytechnic University, Hong Kong, China