1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, China
2. Institute of Remote Sensing Satellite, CAST, Beijing, China
3. Department of Satellite Data Application, Surveying and Mapping Geographic Information Center of Inner Mongolia Autonomous Region, Inner Mongolia, China
4. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China
5. School of Surveying and Land Information Engineering, Henan Polytechnic University, Henan, China