1. Ministry of Education, Key Laboratory of Grain Information Processing and Control, Henan Provincial Key Laboratory of Grain Photoelectric Detection and Control, Zhengzhou, China
2. School of Information Science and Engineering, Henan University of Technology, Zhengzhou, China
3. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai, China
4. College of Information Science and Engineering, Henan University of Technology, Zhengzhou, China