SHANQIING ZHANG1, JIANJUN LI1,+, ZHIHUI WANG2, KUNLONG ZHANG1 AND MINGYUE LI1
1Institute of Graphics and Image
Hangzhou Dianzi University
Hangzhou, 310018 P.R. China
2School of Software Technology
Dalian University of Technology
Dalian, 116620 P.R. China
E-mail: {jianjun.li; sqzhang}@hdu.edu.cn