Pubblicazioni

Autori:

Daffara, Claudia; Parisotto, Simone; Ambrosini, Dario

Titolo:

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

Anno:

2018

Tipologia prodotto:

Articolo in Rivista

Tipologia ANVUR:

Articolo su rivista

Lingua:

Inglese

Formato:

Elettronico

Referee:

Sì

Nome rivista:

OPTICS AND LASERS IN ENGINEERING

ISSN Rivista:

0143-8166

N° Volume:

104

Intervallo pagine:

266-273

Parole chiave:

Artwork diagnostics, Nondestructive examination, Thermal quasi-reflectography, Thermography

Breve descrizione dei contenuti:

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.

Id prodotto:

101085

Handle IRIS:

11562/974221

ultima modifica:

23 febbraio 2023

Citazione bibliografica:

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. 104 , 2018 , pp. 266-273

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