Print Email Facebook Twitter Optical coherence tomography complemented by hyperspectral imaging for the study of protective wood coatings Title Optical coherence tomography complemented by hyperspectral imaging for the study of protective wood coatings Author Dingemans, L.M. Papadakis, V. Liu, P. Adam, A.J.L. Groves, R.M. Faculty Aerospace Engineering Department Aerospace Structures & Materials Date 2015-06-21 Abstract Optical coherence tomography (OCT) is a contactless and non-destructive testing (NDT) technique based on lowcoherence 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. Subject optical coherence tomographyon-destructive testinghyperspectral imagingwood coatingsaveragingoptimizationthickness mapping To reference this document use: http://resolver.tudelft.nl/uuid:4095d737-9316-49d0-a949-e28d597fe9f1 Publisher SPIE ISSN 0277-786X Source Proceedings of SPIE- International Society for Optical Engineering 9527: Pezzati, L., Targowski, P. Optics for Arts, Architecture, and Archaeology V, Munich, Germany June 21, 2015 Part of collection Institutional Repository Document type conference paper Rights (c) 2015 SPIE Files PDF 319623.pdf 977.63 KB Close viewer /islandora/object/uuid:4095d737-9316-49d0-a949-e28d597fe9f1/datastream/OBJ/view