1. College of Surveying and Geo‐informaticsTongji University Shanghai China
2. Department of Land Surveying and Geo‐informaticsThe Hong Kong Polytechnic University Hong Kong
3. Faculté des Science, de la Technologie et de la CommunicationUniversity of Luxembourg Luxembourg
4. Institute of Geodesy and Geo‐informationUniversity of Bonn Bonn Germany
5. Departments of Surveying and MappingGuangdong University of Technology Guangzhou China
6. College of GeomaticsShandong University of Science and Technology Qingdao China