Funding for this research was provided by:
National Natural Science Foundation of China (61272211, 61672267)
the Open Project Program of the National Laboratory of Pattern Recognition (201700022)
the China Postdoctoral Science Foundation (2015M570413)
the Innovation Project of Undergraduate Students in Jiangsu University (16A235)
ORCID
Guo-peng XU: http://orcid.org/0000-0002-2062-0763
Publication History
Received: 2017-04-19
Accepted: 2017-08-31
Crosschecked: 2018-06-12
Content Type
: Article
Copyright
: © Zhejiang University and Springer-Verlag GmbH Germany, part of Springer Nature 2018