WU Feng-qiang1,2, YANG Wu-nian1, LI Dan2,3
(1. State Key Laboratory of Geo-hazard Prevention and Geo-environment Protection, Chengdu University of Technology, Chengdu 610059, China;
2. Southwest University of Science and Technology,Mianyang 621010, China;
3. China Academy of Engineering Physics, Mianyang 621900, China)
Abstract：Hyperspectral imaging technology is an efficient lossless detecting method as well as raman spectra. It can not only obtain continuous spectra of each pixel, but also scan the whole image. The spectrum of pigment on an ancient painting can be obtained by the raman spectra, visible light hyperspectral and infrared hyperspectral imaging technology. Then it is found that the pigment mainly consists of cinnabar, azurite, orpiment and muscovite by minimum noise fraction rotation (MNF), pixel purity index (PPI), spectrafeature fitting (SFF) and matching of the standard spectrum library, and is consistent with the raman spectroscopy results. These experiments show that the hyperspectral imaging technology can not only save the image information, but also scan the spectrum information perfectly.
Key words：Raman spectra; hyperspectral; SFF; painting pigment composition
ACTA MINERALOGICA SINICA Vol. 34, No. 2, 2014, Page 166-170
