1. School of Remote Sensing and Geomatics Engineering, Nanjing University of Information Science and Technology, Nanjing, China
2. School of Earth Sciences and Engineering, Hohai University, Nanjing, China
3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China
4. Center of Excellence in Geomatic Engineering in Disaster Management, and Land Administration in Smart City Lab., School of Surveying and Geospatial Engineering, College of Engineering, University of Tehran, Tehran, Iran