A portable UV-fluorescence multispectral imaging system for the analysis of painted surfaces.
A portable fluorescence multispectral imaging system was developed and has been used for the analysis of artistic surfaces. The imaging apparatus exploits two UV lamps for fluorescence excitation and a liquid crystal tunable filter coupled to a low-noise charge coupled device as the image detector. The main features of the system are critically presented, outlining the assets, drawbacks, and practical considerations of portability. A multivariate statistical treatment of spectral data is further considered. Finally, the in situ analysis with the new apparatus of recently restored Renaissance wall paintings is presented.
Comelli
Daniela
D
ULTRAS-CNR-INFM and IFN-CNR, Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy.
Valentini
Gianluca
G
Nevin
Austin
A
Farina
Andrea
A
Toniolo
Lucia
L
Cubeddu
Rinaldo
R