Applicability of Optical Coherence Tomography at 1.55 μm to the Examination of Oil Paintings

Szkulmowska, Anna; Gora, Michalina J.; Targowska, M.; Rouba, Bogumiła J.; Stifter, David; Breuer, E.; Targowski, Piotr

doi:10.1007/978-3-540-72310-7_57

Cited by 11 publications

(13 citation statements)

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“…4c). Yellow ochre is known to be highly scattering with scattering coefficient decreasing with increasing wavelength [6] and an OCT examination at 1550 nm of yellow ochre oil paint layer found it to be dominated by multiple scattering [17]. While the smalt paint/chalk ground interface can be seen in the 1960 nm OCT image, it is not as clear as that in the 930 nm OCT image.…”

Section: Fdoct Imaging Of Paint Samples At 2 Micronsmentioning

confidence: 99%

High resolution Fourier domain optical coherence tomography in the 2 μm wavelength range using a broadband supercontinuum source

Cheung¹,

Daniel²,

Tokurakawa³

et al. 2015

Opt. Express

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A 220 nm bandwidth supercontinuum source in the two-micron wavelength range has been developed for use in a Fourier domain optical coherence tomography (FDOCT) system. This long wavelength source serves to enhance probing depth in highly scattering material with low water content. We present results confirming improved penetration depth in high opacity paint samples while achieving the high axial resolution needed to resolve individual paint layers. This is the first FDOCT developed in the 2 μm wavelength regime that allows fast, efficient capturing of 3D image cubes at a high axial resolution of 13 μm in air (or 9 μm in paint). tomography imaging of human tissue at 1.55 μm and 1.81 μm using Er-and Tm-doped fiber sources," J.

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Section: Fdoct Imaging Of Paint Samples At 2 Micronsmentioning

confidence: 99%

High resolution Fourier domain optical coherence tomography in the 2 μm wavelength range using a broadband supercontinuum source

Cheung¹,

Daniel²,

Tokurakawa³

et al. 2015

Opt. Express

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“…A more recent study was conducted on 17 pigments (14 in oil binding medium and 3 in egg tempera binding medium) through both measuring the spectral transmittance (400−2500nm) and comparing contrasts of mock underdrawings under different paints using cameras of different spectral sensitivities [17]. A recent qualitative study was conducted on 47 commercial oil paints at 823nm and 1550nm using available OCT instruments [18]. Unfortunately, these OCT systems did not happen to have the same resolution and sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Optimum spectral window for imaging of art with optical coherence tomography

et al. 2013

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Optical Coherence Tomography (OCT) has been shown to have potential for important applications in the field of art conservation and archaeology due to its ability to image subsurface microstructures noninvasively. However, its depth of penetration in painted objects is limited due to the strong scattering properties of artists' paints. VIS-NIR (400 nm -2400 nm) reflectance spectra of a wide variety of paints made with historic artists' pigments have been measured. The best spectral window with which to use optical coherence tomography (OCT) for the imaging of subsurface structure of paintings was found to be around 2.2 µm. The same spectral window would also be most suitable for direct infrared imaging of preparatory sketches under the paint layers. The reflectance spectra from a large sample of chemically verified pigments provide information on the spectral transparency of historic artists' pigments/paints as well as a reference set of spectra for pigment identification. The results of the paper suggest that broadband sources at ~2 microns are highly desirable for OCT applications in art and potentially material science in general.

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“…In 2004, OCT was first applied to the examination of jade [2], ceramics [3] and paintings [3,4]. Direct comparisons between OCT cross-section images and real cross-sections of paint samples showed the extent OCT cross-section imaging is able to reflect the real paint layers [6,7]. Apart from the non-invasive examination of the stratigraphy of paint and varnish layers, OCT has also been shown to be the most sensitive technique for revealing preparatory sketches or underdrawings beneath paint layers owing to its high dynamic range and depth selection capabilities [5,12].…”

Section: Introductionmentioning

confidence: 99%

Optical Coherence Tomography in archaeological and conservation science - a new emerging field

Liang

Peric

Hughes

et al. 2008

1st Canterbury Workshop on Optical Coherence Tomography and Adaptive Optics

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There has been a long tradition of applying biomedical imaging techniques to the examination of historical artefacts, owing to similar demands for non-invasive methods in both fields. Optical Coherence Tomography (OCT) is no exception. We review the achievements on OCT applications to art conservation and archaeology since the publication of the first papers in 2004. Historical artefacts include a much broader range of materials than biological tissues, hence presenting a greater and somewhat different challenge to the field of OCT. New results will be presented to illustrate the various applications of OCT including both qualitative and quantitative analysis.

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Applicability of Optical Coherence Tomography at 1.55 μm to the Examination of Oil Paintings

Cited by 11 publications

References 0 publications

High resolution Fourier domain optical coherence tomography in the 2 μm wavelength range using a broadband supercontinuum source

High resolution Fourier domain optical coherence tomography in the 2 μm wavelength range using a broadband supercontinuum source

Optimum spectral window for imaging of art with optical coherence tomography

Optical Coherence Tomography in archaeological and conservation science - a new emerging field

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