Nondestructive Evaluation of Heritage Object Coatings with Four Hyperspectral Imaging Systems

Sandak, Jakub; Sandak, Anna; Legan, Lea; Retko, Klara; Kavčič, Maša; Kosel, Janez; Poohphajai, Faksawat; Diaz, Rene Herrera; Ponnuchamy, Veerapandian; Sajinčič, Nežka; Gordobil, Oihana; Tavzes, Črtomir; Ropret, Polona

doi:10.3390/coatings11020244

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Nondestructive Evaluation of Heritage Object Coatings with Four Hyperspectral Imaging Systems

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Veerapandian Ponnuchamy

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InnoRenew CoE, Livade 6, 6310 Izola, Slovenia

Andrej Marušič Institute, University of Primorska, Muzejski trg 2, 6000 Koper, Slovenia

Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, 6000 Koper, Slovenia

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Institute for the Protection of Cultural Heritage of Slovenia, Poljanska 40, SI-1000 Ljubljana, Slovenia

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School of Chemical Engineering, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, 00076 Aalto, Finland

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Chemical and Environmental Engineering Department, University of the Basque Country, 20018 San Sebastian, Spain

Author to whom correspondence should be addressed.

Academic Editor: Claudia Pelosi

Coatings 2021, 11(2), 244; https://doi.org/10.3390/coatings11020244

Received: 30 December 2020 / Revised: 12 February 2021 / Accepted: 14 February 2021 / Published: 18 February 2021

(This article belongs to the Special Issue Surface and Interface Analysis of Cultural Heritage)

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Abstract

Advanced imaging techniques can noninvasively characterise, monitor, and evaluate how conservation treatments affect cultural heritage objects. In this specific field, hyperspectral imaging allows nondestructive characterisation of materials by identifying and characterising colouring agents, binders, and protective coatings as components of an object’s original construction or later historic additions. Furthermore, hyperspectral imaging can be used to monitor deterioration or changes caused by environmental conditions. This paper examines the potential of hyperspectral imaging (HSI) for the evaluation of heritage objects. Four cameras operating in different spectral ranges were used to nondestructively scan a beehive panel painting that originated from the Slovene Ethnographic Museum collection. The specific objective of this research was to identify pigments and binders present in the samples and to spatially map the presence of these across the surface of the art piece. Merging the results with databases created in parallel using other reference methods allows for the identification of materials originally used by the artist on the panel. Later interventions to the original paintings can also be traced as part of past conservation campaigns. View Full-Text

Keywords: hyperspectral imaging; cultural heritage; nondestructive testing; surface characterisation; painted beehive panels

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MDPI and ACS Style

Sandak, J.; Sandak, A.; Legan, L.; Retko, K.; Kavčič, M.; Kosel, J.; Poohphajai, F.; Diaz, R.H.; Ponnuchamy, V.; Sajinčič, N.; Gordobil, O.; Tavzes, Č.; Ropret, P. Nondestructive Evaluation of Heritage Object Coatings with Four Hyperspectral Imaging Systems. Coatings 2021, 11, 244. https://doi.org/10.3390/coatings11020244

AMA Style

Sandak J, Sandak A, Legan L, Retko K, Kavčič M, Kosel J, Poohphajai F, Diaz RH, Ponnuchamy V, Sajinčič N, Gordobil O, Tavzes Č, Ropret P. Nondestructive Evaluation of Heritage Object Coatings with Four Hyperspectral Imaging Systems. Coatings. 2021; 11(2):244. https://doi.org/10.3390/coatings11020244

Chicago/Turabian Style

Sandak, Jakub, Anna Sandak, Lea Legan, Klara Retko, Maša Kavčič, Janez Kosel, Faksawat Poohphajai, Rene Herrera Diaz, Veerapandian Ponnuchamy, Nežka Sajinčič, Oihana Gordobil, Črtomir Tavzes, and Polona Ropret. 2021. "Nondestructive Evaluation of Heritage Object Coatings with Four Hyperspectral Imaging Systems" Coatings 11, no. 2: 244. https://doi.org/10.3390/coatings11020244

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