Publications

Multipurpose, dual-mode imaging in the 3–5 µm range (MWIR) for artwork diagnostics: A systematic approach  (2018)

Authors:
Daffara, Claudia; Parisotto, Simone; Ambrosini, Dario
Title:
Multipurpose, dual-mode imaging in the 3–5 µm range (MWIR) for artwork diagnostics: A systematic approach
Year:
2018
Type of item:
Articolo in Rivista
Tipologia ANVUR:
Articolo su rivista
Language:
Inglese
Format:
Elettronico
Referee:
Name of journal:
OPTICS AND LASERS IN ENGINEERING
ISSN of journal:
0143-8166
N° Volume:
104
Page numbers:
266-273
Keyword:
Artwork diagnostics, Nondestructive examination, Thermal quasi-reflectography, Thermography
Short description of contents:
We present a multi-purpose, dual-mode imaging method in the Mid-Wavelength Infrared (MWIR) range (from 3 µm to 5 µm) for a more efficient nondestructive analysis of artworks. Using a setup based on a MWIR thermal camera and multiple radiation sources, two radiometric image datasets are acquired in different acquisition modalities, the image in quasi-reflectance mode (TQR) and the thermal sequence in emission mode. Here, the advantages are: the complementarity of the information; the use of the quasi-reflectance map for calculating the emissivity map; the use of TQR map for a referentiation to the visible of the thermographic images. The concept of the method is presented, the practical feasibility is demonstrated through a custom imaging setup, the potentiality for the nondestructive analysis is shown on a notable application to cultural heritage. The method has been used as experimental tool in support of the restoration of the mural painting “Monocromo” by Leonardo da Vinci. Feedback from the operators and a comparison with some conventional diagnostic techniques is also given to underline the novelty and potentiality of the method.
Product ID:
101085
Handle IRIS:
11562/974221
Last Modified:
December 4, 2019
Bibliographic citation:
Daffara, Claudia; Parisotto, Simone; Ambrosini, Dario, Multipurpose, dual-mode imaging in the 3–5 µm range (MWIR) for artwork diagnostics: A systematic approach «OPTICS AND LASERS IN ENGINEERING» , vol. 1042018pp. 266-273

Consulta la scheda completa presente nel repository istituzionale della Ricerca di Ateneo IRIS

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