[1] Hunan Univ, Coll Elect & Informat Engn, Changsha 418002, Peoples R China
[2] Nanchang Inst Technol, Sch Informat Engn, Jiangxi Prov Key Lab Water Informat Cooperat Sensi, Nanchang 330099, Peoples R China
[3] China Univ Geosci, Sch Comp Sci, Hubei Key Lab Intelligent Geoinformat Proc, Wuhan 430078, Peoples R China
[4] Univ Extremadura, Dept Technol Comp & Commun, Hyperspectral Comp Lab, E-10071 Caceres, Spain