| Institution: | 1. National Geomatics Centre of China , 1 Baishengcun, Zizhuyuan, Beijing, PR China chenjun@nsdi.gov.cn;3. National Geomatics Centre of China , 1 Baishengcun, Zizhuyuan, Beijing, PR China;4. China University of Mining &5. Technology , Xuzhou, Jiangsu, PR China;6. Department of Land Surveying and Geo‐Informatics , The Hong Kong Polytechnic University , Hong Kong;7. National Geomatics Centre of China , 1 Baishengcun, Zizhuyuan, Beijing, PR China;8. Department of Geomatic Engineering , University College London, Gower Street, WC1E 6BT , London, UK |
