1. Articles from david saunders

    1-4 of 4
    1. Optical Coherence Tomography for the non-invasive investigation of the microstructure of ancient Egyptian faience

      Optical Coherence Tomography for the non-invasive investigation of the microstructure of ancient Egyptian faience

      Optical Coherence Tomography (OCT) is a non-invasive subsurface 3D imaging technique based on the Michelson interferometer. The non-invasive nature of OCT and its speed of acquisition makes it possible to image large volumes of intact objects to yield a complete overview of the microstructure. The production methods for ancient Egyptian faience were first investigated using scanning electron microscopy (SEM) imaging of the microstructure in polished sections and microprobe analysis of the composition of the glass phases. These studies were based on original Egyptian faience objects and laboratory reproductions of faience beads made using three different production methods. The microstructure of ...

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    2. Optical coherence tomography for art conservation and archaeology

      Haida Liang, Borislava Peric, Michael Hughes et al. Optical coherence tomography (OCT) is a fast scanning Michelson interferometer originally designed for in vivo imaging of the eye. In 2004, our group along with two other groups first reported the application of OCT to art conservation and archaeology. Since that time we have been conducting a proje ... [Proc. SPIE Int. Soc. Opt. Eng. 6618, 661805 (2007)] published Mon Jul 16, 2007.
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    3. En-face optical coherence tomography – a novel application of non-invasive imaging to art conservation

      En-face optical coherence tomography – a novel application of non-invasive imaging to art conservation
      Optical Coherence Tomography (OCT) is an optical interferometric technique developed mainly for in vivo imaging of the eye and biological tissues. In this paper, we demonstrate the potential of OCT for non-invasive examination of museum paintings. Two en-face scanning OCT systems operating at 850 nm and 1300 nm were used to produce B-scan and C-scan images at typical working distances of 2 cm. The 3D images produced by the OCT systems show not only the structure of the varnish layer but also the paint layers and underdrawings (preparatory drawings under the paint layers). The highest ever resolution and dynamic range ...
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    4. En-face optical coherence tomography - a novel application of non-invasive imaging to art conservation

      En-face optical coherence tomography - a novel application of non-invasive imaging to art conservation

      Optical Coherence Tomography (OCT) is an optical interferometric technique developed mainly for in vivo imaging of the eye and biological tissues. In this paper, we demonstrate the potential of OCT for non-invasive examination of museum paintings. Two en-face scanning OCT systems operating at 850 nm and 1300 nm were used to produce B-scan and C-scan images at typical working distances of 2 cm. The 3D images produced by the OCT systems show not only the structure of the varnish layer but also the paint layers and underdrawings (preparatory drawings under the paint layers). The highest ever resolution and dynamic range ...

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    1-4 of 4
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    1. (3 articles) University of Kent
    2. (1 articles) Nottingham Trent University
    3. (1 articles) San Raffaele Scientfic Institute
    4. (1 articles) Carl Zeiss Meditec
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