Three-dimensional spectral measurements of paint samples using optical coherence tomography

Michael Maria; Lieve d'Hont; Andrei G. Anisimov; Maartje Stols-Witlox; Roger M. Groves

doi:10.1117/12.2592663

Three-dimensional spectral measurements of paint samples using optical coherence tomography

Michael Maria^*, Lieve d'Hont, Andrei G. Anisimov, Maartje Stols-Witlox, Roger M. Groves

^*Corresponding author for this work

Structural Integrity & Composites

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

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Abstract

In this study, we describe a method for measuring the spectral reflectance of a paint layer at both the surface and in the volume of the paint layers. We first present a fringes model which illustrates the possibilities for spectral reconstruction using a Short-Time-Fourier-Transform algorithm. We investigate the remaing percentage errors and identified that there is a strong fluctuation along the wavelength range of the spectrometer. Then, we demonstrate the validity of our approach experimentally by measuring the spectral reflectance of a paint layer using a custom-made visible light optical coherence tomography system. There, we reconstruct the spectral reflectance of a paint layer by probing the surface and a depth range below the surface. Finally, we show the importance to include a wavelength sensitive correction in the reconstruction for taking into account the spectral shape of the light in the reference path of the interferometer. This work is part of the Down To The Ground project, in which the results of the OCT inspection will be used directly by a consortium of technical art historians and conservators.

Original language	English
Title of host publication	Optics for Arts, Architecture, and Archaeology VIII
Editors	Haida Liang, Roger Groves
Publisher	SPIE
Number of pages	6
ISBN (Electronic)	9781510644021
DOIs	https://doi.org/10.1117/12.2592663
Publication status	Published - 2021
Event	Optics for Arts, Architecture, and Archaeology VIII 2021 - Virtual, Online, Germany Duration: 21 Jun 2021 → 25 Jun 2021

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11784
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Optics for Arts, Architecture, and Archaeology VIII 2021
Country/Territory	Germany
City	Virtual, Online
Period	21/06/21 → 25/06/21

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Hyperspectral imaging
Optical coherence tomography
Spectral calibration
Spectroscopy

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10.1117/12.2592663

117840QFinal published version, 881 KB

Cite this

Maria, M., d'Hont, L., Anisimov, A. G., Stols-Witlox, M., & Groves, R. M. (2021). Three-dimensional spectral measurements of paint samples using optical coherence tomography. In H. Liang, & R. Groves (Eds.), Optics for Arts, Architecture, and Archaeology VIII Article 117840Q (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11784). SPIE. https://doi.org/10.1117/12.2592663

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title = "Three-dimensional spectral measurements of paint samples using optical coherence tomography",

abstract = "In this study, we describe a method for measuring the spectral reflectance of a paint layer at both the surface and in the volume of the paint layers. We first present a fringes model which illustrates the possibilities for spectral reconstruction using a Short-Time-Fourier-Transform algorithm. We investigate the remaing percentage errors and identified that there is a strong fluctuation along the wavelength range of the spectrometer. Then, we demonstrate the validity of our approach experimentally by measuring the spectral reflectance of a paint layer using a custom-made visible light optical coherence tomography system. There, we reconstruct the spectral reflectance of a paint layer by probing the surface and a depth range below the surface. Finally, we show the importance to include a wavelength sensitive correction in the reconstruction for taking into account the spectral shape of the light in the reference path of the interferometer. This work is part of the Down To The Ground project, in which the results of the OCT inspection will be used directly by a consortium of technical art historians and conservators.",

keywords = "Hyperspectral imaging, Optical coherence tomography, Spectral calibration, Spectroscopy",

author = "Michael Maria and Lieve d'Hont and Anisimov, {Andrei G.} and Maartje Stols-Witlox and Groves, {Roger M.}",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. ; Optics for Arts, Architecture, and Archaeology VIII 2021 ; Conference date: 21-06-2021 Through 25-06-2021",

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Maria, M, d'Hont, L, Anisimov, AG, Stols-Witlox, M & Groves, RM 2021, Three-dimensional spectral measurements of paint samples using optical coherence tomography. in H Liang & R Groves (eds), Optics for Arts, Architecture, and Archaeology VIII., 117840Q, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11784, SPIE, Optics for Arts, Architecture, and Archaeology VIII 2021, Virtual, Online, Germany, 21/06/21. https://doi.org/10.1117/12.2592663

Three-dimensional spectral measurements of paint samples using optical coherence tomography. / Maria, Michael; d'Hont, Lieve; Anisimov, Andrei G. et al.
Optics for Arts, Architecture, and Archaeology VIII. ed. / Haida Liang; Roger Groves. SPIE, 2021. 117840Q (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11784).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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AU - Maria, Michael

AU - d'Hont, Lieve

AU - Anisimov, Andrei G.

AU - Stols-Witlox, Maartje

AU - Groves, Roger M.

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2021

Y1 - 2021

N2 - In this study, we describe a method for measuring the spectral reflectance of a paint layer at both the surface and in the volume of the paint layers. We first present a fringes model which illustrates the possibilities for spectral reconstruction using a Short-Time-Fourier-Transform algorithm. We investigate the remaing percentage errors and identified that there is a strong fluctuation along the wavelength range of the spectrometer. Then, we demonstrate the validity of our approach experimentally by measuring the spectral reflectance of a paint layer using a custom-made visible light optical coherence tomography system. There, we reconstruct the spectral reflectance of a paint layer by probing the surface and a depth range below the surface. Finally, we show the importance to include a wavelength sensitive correction in the reconstruction for taking into account the spectral shape of the light in the reference path of the interferometer. This work is part of the Down To The Ground project, in which the results of the OCT inspection will be used directly by a consortium of technical art historians and conservators.

AB - In this study, we describe a method for measuring the spectral reflectance of a paint layer at both the surface and in the volume of the paint layers. We first present a fringes model which illustrates the possibilities for spectral reconstruction using a Short-Time-Fourier-Transform algorithm. We investigate the remaing percentage errors and identified that there is a strong fluctuation along the wavelength range of the spectrometer. Then, we demonstrate the validity of our approach experimentally by measuring the spectral reflectance of a paint layer using a custom-made visible light optical coherence tomography system. There, we reconstruct the spectral reflectance of a paint layer by probing the surface and a depth range below the surface. Finally, we show the importance to include a wavelength sensitive correction in the reconstruction for taking into account the spectral shape of the light in the reference path of the interferometer. This work is part of the Down To The Ground project, in which the results of the OCT inspection will be used directly by a consortium of technical art historians and conservators.

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M3 - Conference contribution

AN - SCOPUS:85112705705

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Optics for Arts, Architecture, and Archaeology VIII

A2 - Liang, Haida

A2 - Groves, Roger

PB - SPIE

T2 - Optics for Arts, Architecture, and Archaeology VIII 2021

Y2 - 21 June 2021 through 25 June 2021

ER -

Three-dimensional spectral measurements of paint samples using optical coherence tomography

Abstract

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Keywords

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