1. School of Automation and Electrical Engineering, University of Science and Technology BeijingBeijing100083People's Republic of China
2. School of Electrical and Electronic Engineering, Nanyang Technological UniversitySingapore639798Singapore
3. Beijing Engineering Research Center of Industrial Spectrum Imaging (No. BG0150)Beijing100083People's Republic of China
4. Temasek Laboratories, National University of Singapore5 Sports Drive 2Singapore117508Singapore