[Fu, Liuwei; Zheng, Jinhua; Hu, Yaru; Fu, LW; Yang, Shengxiang; Zou, Juan; Yu, Guo] Xiangtan Univ, Informat Engn Coll, Key Lab Intelligent Comp & Informat Proc, Minist Educ, Xiangtan, Hunan, Peoples R China.
[Zheng, Jinhua] Hengyang Normal Univ, Sch Comp Sci & Technol, Hengyang, Hunan, Peoples R China.
[Zou, Juan] LED Lighting Res & Technol Ctr Guizhou TongRen, Tongren, Guizhou, Peoples R China.
[Yang, Shengxiang] De Montfort Univ, Sch Comp Sci & Informat, CCI, Leicester LE1 9BH, Leics, England.
[Yu, Guo] Univ Surrey, Sch Comp Sci, Guildford GU2 7XH, Surrey, England.