Funding for this research was provided by:
the National High-Tech R&D Program of China (2012AA101701)
the National Key Technology Support Program of China (2013BAK01B00, 2014BAK16B00)
Grotto Temples Digital Protection of Cultural Relics and Equipment Upgrading of National Cultural Heritage Administration Scientific Research Institutes
Article History
Received: 2 July 2018
Accepted: 26 October 2018
First Online: 2 September 2019
Compliance with ethics guidelines
: Shuai-zhao JIN, Zi-xiao WANG, Ya-bo DONG, and Dong-ming LU declare that they have no conflict of interest.