1. Key Laboratory of Jiangxi Province for Image Processing and Pattern Recognition and MOE Key Lab of Nondestructive Testing Technology, School of Information Engineering, Nanchang Hangkong University, Nanchang, China
2. Laboratory of New Energy, Beijing Information Science and Technology University, Beijing, China
3. Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, College of Engineering, South China Agricultural University, Guangzhou, China