Funding for this research was provided by:
Fund of MOE Key Laboratory of Image Processing and Intelligence Control (IPIC2015-02)
National Natural Science Foundation of China (51505273)
National Key Technology R & D Program of China (2015BAF10B01)
Article History
Received: 4 September 2017
Revised: 24 December 2017
Accepted: 23 January 2018
First Online: 1 February 2018
Compliance with ethical standards
:
: The authors declare that they have no competing interests.