1. College of Railway Transportation, Hunan University of Technology, Zhuzhou, China
2. College of Electrical and Information Engineering, Hunan University, Changsha, China
3. Hubei Key Laboratory of Intelligent Geo-Information Processing, School of Computer Science, China University of Geosciences, Wuhan, China
4. Department of Technology of Computers and Communications, Hyperspectral Computing Laboratory, Escuela Politecnica, University of Extremadura, Cáceres, Spain
5. School of Robotics, Hunan University, Changsha, China