Optical coherence tomography for art conservation and archaeology

Liang, Haida; Peric, B; Hughes, Michael; Podoleanu, Adrian Gh.; Spring, Marika; Saunders, David

doi:10.1117/12.726032

Cited by 31 publications

(28 citation statements)

References 17 publications

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“…Some of the ancient glass artefacts from the collections of the British Museum have been examined by Liang et al [17,34,37]. These studies confirmed the ability of OCT to reveal details of the internal structure of the glasses up to 0.5 mm under the surface.…”

Section: Examination Of the Structure And State Of Preservation Of Pasupporting

confidence: 62%

“…This trade-off must therefore always be taken into account when new experiments are under consideration. An important account of this subject has also been presented by Liang et al [34].…”

Section: Examination Of the Structure And State Of Preservation Of Pamentioning

confidence: 97%

“…The advantage of coherent detection in OCT was utilised by Liang et al [14,34,35,37,38] and by Adler et al [19] for (Fig. 5).…”

Section: Examination Of the Structure And State Of Preservation Of Pamentioning

confidence: 99%

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Optical Coherence Tomography: its role in the non-invasive structural examination and conservation of cultural heritage objects—a review

2011

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A brief introduction to Optical Coherence Tomography (OCT) is presented, stressing the origin of the tomographic signal and the detection methods defining various modalities of the technique. The parameters of the tomographs, such as axial and lateral resolution, wavelength and intensity of the probing light, imaging range, time of examination, and sensitivity are then defined, and a paradigm for interpreting the OCT tomograms provided. The second part of the article comprises a review of the utilisation of OCT for structural examination of artworks, illustrated with some representative results. Applications to the structural imaging of semi-transparent subsurface layers such as varnishes and glazes, of underdrawings and of reverse painting on glass, are described first, and then applications in the examination of the structure and state of preservation of historic glass, jade, glazed porcelain and faience are discussed. Finally, the use of OCT combined with LIBS analysis and laser ablation of surface layers is presented.

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Section: Examination Of the Structure And State Of Preservation Of Pasupporting

confidence: 62%

“…This trade-off must therefore always be taken into account when new experiments are under consideration. An important account of this subject has also been presented by Liang et al [34].…”

Section: Examination Of the Structure And State Of Preservation Of Pamentioning

confidence: 97%

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Optical Coherence Tomography: its role in the non-invasive structural examination and conservation of cultural heritage objects—a review

2011

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“…A related and notable development of recent years is the depth selective variant of NIR-based imaging called Optical Coherence Tomography (OCT) [47,48]. OCT is a point scanning system based on the use of a NIR source coupled to a Michelson interferometer.…”

Section: Methods Based On Infrared Radiationmentioning

confidence: 99%

Examination of historical paintings by state-of-the-art hyperspectral imaging methods: from scanning infra-red spectroscopy to computed X-ray laminography

et al. 2014

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The development of advanced methods for non-destructive selective imaging of painted works of art at the macroscopic level based on radiation in the X-ray and infrared range of the electromagnetic spectrum are concisely reviewed. Such methods allow to either record depth-selective, element-selective or species-selective images of entire paintings. Camera-based 'full field' methods (that record the image data in parallel) can be discerned next to scanning methods (that build up distributions in a sequential manner by scanning a beam of radiation over the surface of an artefact). Six methods are discussed: on the one hand, macroscopic X-ray fluorescence and X-ray diffraction imaging and X-ray laminography and on the other hand macroscopic Mid and Near Infrared hyper-and full spectral imaging and Optical Coherence Tomography. These methods can be considered to be improved versions of the well-established imaging methods employed worldwide for examination of paintings, i.e., X-ray radiography and Infrared reflectography. Possibilities and limitations of these new imaging techniques are outlined.

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“…OCT gives not only the subsurface layer structures but also reveals the scattering and absorption properties of the material [62]. OCT complements spectral imaging in the identification of the material and providing information on the surface topology and subsurface layer structure.…”

Section: Combined With Optical Coherence Tomography (Oct)mentioning

confidence: 99%

Advances in multispectral and hyperspectral imaging for archaeology and art conservation

2011

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Multispectral imaging has been applied to the field of art conservation and art history since the early 1990s. It is attractive as a noninvasive imaging technique because it is fast and hence capable of imaging large areas of an object giving both spatial and spectral information. This paper gives an overview of the different instrumental designs, image processing techniques and various applications of multispectral and hyperspectral imaging to art conservation, art history and archaeology. Recent advances in the development of remote and versatile multispectral and hyperspectral imaging as well as techniques in pigment identification will be presented. Future prospects including combination of spectral imaging with other noninvasive imaging and analytical techniques will be discussed.

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Optical coherence tomography for art conservation and archaeology

Cited by 31 publications

References 17 publications

Optical Coherence Tomography: its role in the non-invasive structural examination and conservation of cultural heritage objects—a review

Optical Coherence Tomography: its role in the non-invasive structural examination and conservation of cultural heritage objects—a review

Examination of historical paintings by state-of-the-art hyperspectral imaging methods: from scanning infra-red spectroscopy to computed X-ray laminography

Advances in multispectral and hyperspectral imaging for archaeology and art conservation

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