作者机构:[1]Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China, [2]Zhejiang Provincial Key Laboratory ofInformation Network Technology, Hangzhou 310027, China, [3]Singapore University of Technology and Design, Singapore
相关基金:This work was supported by the National Basic Research Program of China (2009CB320405 and 2012CB316104), the National Natural Science Foundation of China (60972057), and the Supporting Program for New Century Excellent Talents in Universities (NCET-09-0701).