[Pang, Shiyan] Cent China Normal Univ, Sch Educ Informat Technol, Wuhan 430079, Hubei, Peoples R China.
[Pang, Shiyan; Hu, Xiangyun] Wuhan Univ, Collaborat Innovat Ctr Geospatial Technol, Wuhan 430079, Hubei, Peoples R China.
[Cai, Zhongliang; Pang, Shiyan] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Hubei, Peoples R China.
[Zhang, Mi; Hu, Xiangyun] Wuhan Univ, Sch Remote Sensing & Informat Engn, Wuhan 430079, Hubei, Peoples R China.
[Liu, Fengzhu] Beijing Insititute Surveying & Mapping, Beijing 100038, Peoples R China.