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Proceedings Paper

Optical coherence tomography complemented by hyperspectral imaging for the study of protective wood coatings
Author(s): L. M. Dingemans; V. M. Papadakis; P. Liu; A. J. L. Adam; R. M. Groves
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Paper Abstract

Optical coherence tomography (OCT) is a contactless and non-destructive testing (NDT) technique based on low-coherence interferometry. It has recently become a popular NDT-tool for evaluating cultural heritage. In this study, protective coatings on wood and their penetration into the wood structure were measured with a customized infrared fiber optic OCT instrument. In order to enhance the understanding of the OCT measurements of coatings on real wooden samples, an optimization of the measuring and analyzing methodology was performed by developing an averaging approach and by post-processing the data. The collected information was complemented by data obtained with hyperspectral imaging to allow data from local OCT A-scans to be used in mapping the coating thicknesses over larger areas.

Paper Details

Date Published: 30 June 2015
PDF: 12 pages
Proc. SPIE 9527, Optics for Arts, Architecture, and Archaeology V, 952708 (30 June 2015); doi: 10.1117/12.2184716
Show Author Affiliations
L. M. Dingemans, Delft Univ. of Technology (Netherlands)
V. M. Papadakis, Delft Univ. of Technology (Netherlands)
P. Liu, Delft Univ. of Technology (Netherlands)
A. J. L. Adam, Delft Univ. of Technology (Netherlands)
R. M. Groves, Delft Univ. of Technology (Netherlands)

Published in SPIE Proceedings Vol. 9527:
Optics for Arts, Architecture, and Archaeology V
Luca Pezzati; Piotr Targowski, Editor(s)

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