Nondestructive Evaluation of Heritage Object Coatings with Four Hyperspectral Imaging Systems

Coatings

Anna Sandak¹  Oihana Gordobil¹  ReneHerrera Diaz¹  Jakub Sandak¹  Črtomir Tavzes¹  Nežka Sajinčič¹  Faksawat Poohphajai¹  Veerapandian Ponnuchamy¹  Klara Retko²  Polona Ropret²  Janez Kosel²  Maša Kavčič²  Lea Legan² 

[1] InnoRenew CoE, Livade 6, 6310 Izola, Slovenia;Institute for the Protection of Cultural Heritage of Slovenia, Poljanska 40, SI-1000 Ljubljana, Slovenia;

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

DOI  :  10.3390/coatings11020244

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown