Funding for this research was provided by:
the Open Foundation of Key Laboratory of Spectral Imaging Technology of the Chinese Academy of Sciences (LSIT201711D)
the Outstanding Young Cultivation Foundation of Henan university (0000A40366)
Article History
Received: 11 January 2018
Revised: 18 April 2018
Accepted: 27 April 2018
First Online: 23 June 2018