中文摘要：

Da-Huan Li was born in Jiangsu Province, China, in 1983. He received the B.S. degree in biomedical engineering from University of Elecronic Science and Technology of China （UESTC）, Chendu, in 2006. He is currently pursuing the M.S. degree with School of Life Science and Technology, UESTC. His research interests include signal processing in fMRI and information theory. Qin Gao was born in Sichuan Province, China, in 1977. She received the M.S. degree in mathematics from Beijing Normal University in 2002. She is currently pursuing the Ph.D in biomedical engineering with UESTC. Her research interests include functional magnetic resonance imaging and diffuse tensor imaging. Wei-Shuai Lv was born in Shandong Province, China, in 1984. He received the B.S. degree in biomedical engineering from the Chongqing University of Posts and Telecommunications, Chongqing, in 2007. He is currently pursuing the M.S. degree in biomedical engineering with UESTC. His research interests include signal processing in functional magnetic resonance imaging and information theory. （e-mail： chenhf@ueste.edu.cn）.Hua-Fu Chen was born in Sichuan Province, China, in 1967. He received the Ph.D. degree in biomedical engineering from UESTC in 2004. He is the author or coauthor of more than 30 SCI indexed scientific papers. He is currently a professor with School of Life Science and Technology, UESTC. His major research interests include independent component analysis, functional magnetic resonance imaging, and signal and image processing.