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A non-invasive investigation of Limoges enamels using both Optical Coherence Tomography (OCT) and spectral imaging: a pilot study
Author(s): Margaret Read; Chi Shing Cheung; Denise Ling; Capucine Korenberg; Andrew Meek; Sotiria Kogou; Haida Liang
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Paper Abstract

This paper investigates the use of Optical Coherence Tomography (OCT) and Short-wave Infrared (SWIR) spectral imaging to study the deterioration of a Limoges enamel panel. Limoges enamels are formed of glass layers applied on a metal substrate and are prone to ‘glass disease’. However, the level of deterioration in Limoges enamels is generally difficult to assess visually. In this study, SWIR was used to produce a hydration level map of the enamel, which was coupled with virtual OCT cross-sections. The study shows a good correlation between levels of hydration and structural damage over the enamel panel. Hydration mapping allows visualisation of structural damage across the entire enamel in one image.

Paper Details

Date Published: 12 July 2019
PDF: 6 pages
Proc. SPIE 11058, Optics for Arts, Architecture, and Archaeology VII, 1105803 (12 July 2019); doi: 10.1117/12.2527092
Show Author Affiliations
Margaret Read, Nottingham Trent Univ. (United Kingdom)
The British Museum (United Kingdom)
Chi Shing Cheung, Nottingham Trent Univ. (United Kingdom)
Denise Ling, The British Museum (United Kingdom)
Capucine Korenberg, The British Museum (United Kingdom)
Andrew Meek, The British Museum (United Kingdom)
Sotiria Kogou, Nottingham Trent Univ. (United Kingdom)
Haida Liang, Nottingham Trent Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 11058:
Optics for Arts, Architecture, and Archaeology VII
Haida Liang; Roger Groves, Editor(s)

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