1. College of Geomatics, Xi’an University of Science and Technology, Xi’an, China
2. Department of Remote Sensing, the College of Geomatics, and the College of Geology and Environment, Xi’an University of Science and Technology, Xi’an, China
3. Key Laboratory of Computational Optical Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
4. Piesat Information Technology Company Ltd., Beijing, China