[1] China Agr Univ, Coll Land Sci & Technol, Beijing, Peoples R China
[2] Wuhan Univ, Sch Remote Sensing & Informat Engn, Wuhan, Peoples R China
[3] Shandong Jianzhu Univ, Sch Surveying & Geoinformat, Jinan, Shandong, Peoples R China
[4] Chinese Acad Sci, Aerosp Informat Res Inst, Natl Engn Res Ctr Geoinformat, Beijing, Peoples R China