Scientific Results

Integrated reflectography and thermography for wooden paintings diagnostics

Year: 2010

Authors: Ambrosini D., Daffara C., Di Biase R., Paoletti D., Pezzati L., Bellucci R., Bettini F.

Autors Affiliation: DIMEG, Università dell’Aquila, Piazzale E. Pontieri 1, 67100 Monteluco di Roio, L’Aquila, Italy; Istituto Nazionale di Ottica Applicata, C.N.R. L.go E. Fermi 6, 50125 Firenze,Italy;
Opificio delle Pietre Dure, Viale Strozzi 1, 50100 Firenze, Italy

Abstract: The need of inspecting a masterpiece of fine art without affecting it led to develop non destructive methods of investigation. In the field of art conservation, several diagnostic techniques are being widely used to inspect works of art, giving different but complementary results. The present work deals with two of these methods, reflectography and thermography, both techniques examining objects in the infrared spectrum but in different wavelength bands. Their integrated data potentially provide a powerful tool for mapping hidden features and alterations of artworks. This was confirmed during the inspections of a 13th century panel painting under restoration at the Opificio delle Pietre Dure laboratories (Florence, Italy). A graphical user interface was also designed to aid operators in the field of conservation dealing with the results of the two IR methods. Many options such as image adjustment, comparison, overlaying and transparency variation, in addition to thermographic elaborations, have been made available to users. Imaging data integration provides a multi-layered and multi-spectral representation of the painting that yields a comprehensive diagnosis confirms the anomalies individuation and reduces the ambiguities of information coming from a single diagnostic method. (C) 2009 Elsevier Masson SAS. All rights reserved.

Journal/Review: JOURNAL OF CULTURAL HERITAGE

Volume: 11 (2)      Pages from: 196  to: 204

KeyWords: Integrated approach; NDT; Panel painting; Reflectography; Thermography
DOI: 10.1016/j.culher.2009.05.001

Citations: 43
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English