1. Optical Coherence Tomography: an example of examination of oil painting on canvas

    Optical Coherence Tomography: an example of examination of oil painting on canvas

    Professor Piotr Targowsky, from the Nicolaus Copernicus University of Poland examinates the Portrait of Sir John Wylie, an oil painting on canvas, by using Optical Coherence Tomography (OCT).
    OCT offers a micrometre level in-depth resolution and is well suited for the investigation of fine details of structures which moderately absorb infrared light, such as varnishes, glazes and underdrawings of easel paintings, reverse paintings on glass, glazes on porcelain and faience, jade, historic glass and amber amongst others. Images obtained by OCT are usually presented in the convenient manner of cross-sectional views, similar to microscopic photographs of cross-sections of samples collected ...

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