Botticelli, M. , Risdonne, V., Visser, T., Young, C. , Smith, M. J. , Charsley, J. M., Rutkauskas, M., Altmann, Y. and Reid, D. T. (2023) Reflecting the past, imag(in)ing the past: macro-reflection imaging of painting materials by fast MIR hyperspectral analysis. European Physical Journal Plus, 138(5), 432. (doi: 10.1140/epjp/s13360-023-03958-7)
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Abstract
Imaging spectroscopy has been developed in the last two decades in the visible and infrared spectral range for detecting pigments and binders on paintings. The near-infrared (NIR) region has been proved effective for the discrimination of lipids and proteinaceous binders. More recently, the mid-infrared (MIR) range has also been tested on paintings. Reflection imaging prototypes already developed could be further optimized for cultural heritage analysis, for example by: enhancing the instrument configuration and performance; adopting compressive strategies to increase data processing speeds; using data validation to confirm that the processed image reflects the composition of a painted surface; and lowering price to enable more cost-effective analysis of large surface areas. Here, we demonstrate a novel hyperspectral Fourier transform spectrometer (HS FTS), which enables an imaging strategy that provides a significant improvement in acquisition rate compared to other state-of-the-art techniques. We demonstrate hyperspectral imaging across the 1400–700 cm−1 region in reflection mode with test samples and the painting ‘Uplands in Lorne’ (Acc. No.: GLAHA43427) by D.Y. Cameron (1865–1945). A post-processing analysis of the resulting hyperspectral images, after validation of reference samples by conventional Fourier transform infrared spectroscopy, shows the potential of the method for efficient non-destructive classification of different materials found on painted cultural heritage. This research demonstrates that the HS FTS is a convenient and compact tool for non-invasive analysis of painted cultural heritage objects at spatio-spectral acquisition rates potentially higher than current FTS imaging techniques. Ultimately, when combined with fast graphics processing unit-based reconstruction, the HS FTS may enable fast, large area imaging.
Item Type: | Articles |
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Additional Information: | This project was supported by the UK Engineering and Physical Sciences Research Council, under Grant number EP/R033013/1, within the PISTACHIO (Photonic Imaging Strategies for Technical Art History and Conservation) project and by the Royal Academy of Engineering under the Research Fellowship scheme RF201617/16/31. Instruments were provided by the Arts and Humanities Research Council (AHRC) under Grant CapCo (Capability for Collections) ‘Equipping the Vision of Kelvin Hall’, number AH/V012398/1. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Smith, Dr Margaret and Risdonne, Ms Valentina and Visser, Miss Tess and Botticelli, Dr Michela and Young, Professor Christina |
Authors: | Botticelli, M., Risdonne, V., Visser, T., Young, C., Smith, M. J., Charsley, J. M., Rutkauskas, M., Altmann, Y., and Reid, D. T. |
College/School: | College of Arts & Humanities > School of Culture and Creative Arts College of Arts & Humanities > School of Culture and Creative Arts > History of Art |
Journal Name: | European Physical Journal Plus |
Publisher: | Springer |
ISSN: | 2190-5444 |
ISSN (Online): | 2190-5444 |
Published Online: | 22 May 2023 |
Copyright Holders: | Copyright © 2023 The Authors |
First Published: | First published in European Physical Journal Plus 138(5): 432 |
Publisher Policy: | Reproduced under a Creative Commons License |
Data DOI: | 10.5525/gla.researchdata.1403 |
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