1School of Information Science & Technology Chengdu University, Chengdu 610106, China; Key Laboratory of Pattern Recognition and Intelligent Information Processing
2School of Mathematics and Information Science Guangxi University, Nanning 530004, China
3Key Laboratory of Image Processing and Intelligent Control; Department of Control Science and Engineering Huazhong University of Science and Technology, Wuhan 430074, China
4Guangxi Academy of Sciences Nanning, Guangxi 530007, China
