1. School of Civil Engineering and Geomatics, Shandong University of Technology, Zibo, China
2. State Key Laboratory of Resources and Environmental Information System, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
3. Hunan Provincial Key Laboratory of Geo-Information Engineering in Surveying, Mapping and Remote Sensing, Hunan University of Science and Technology, Xiangtan, China
4. Zhejiang Academy of Surveying and Mapping, Hangzhou, China
5. Haikou Marine Geological Survey Center, China Geological Survey, Haikou, China