1. School of Remote Sensing & Geomatics Engineering, Nanjing University of Information Science & Technology, Nanjing, People’s Republic of China
2. Technology Innovation Center for Integration Applications in Remote Sensing and Navigation, Ministry of Natural Resources, Nanjing, People’s Republic of China
3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS), Wuhan University, Wuhan, People’s Republic of China