1. College of Information Science and Technology, Donghua University, Shanghai, P.R. China
2. Engineering Research Centerof Digitized Texture and Fashion Technology, Donghua University, Shanghai, P.R. China
3. School of Instrumentation Science and Opto-electronics Engineering, BeihangUniversity, Beijing, P.R. China
4. School of Physics and Optoelectronic Engineering, Foshan University, Guangdong, P.R. China