1. Henan Key Lab of Information-Based Electrical Appliances, Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China. jiangsx913@126.com, wangyanfeng@zzuli.edu.cn
2. Key Laboratory of Image Information Processing and Intelligent Control, School of Automation, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China. xujinbang@mail.hust.edu.cn, fei_xu@hust.edu.cn