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Optical properties of historical paint pigments under near infrared (NIR) radiation

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    0438204 - ÚTIA 2015 RIV CZ eng C - Conference Paper (international conference)
    Blažek, Jan - Zitová, Barbara - Tichý, T. - Vašutová, V.
    Optical properties of historical paint pigments under near infrared (NIR) radiation.
    ACTA ARTIS ACADEMICA 2014. Praha: Akademie výtvarných umění v Praze, 2014 - (Hradil, D.; Hradilová, J.), s. 35-41. ISBN 978-80-87108-48-2.
    [mezioborová konference ALMA 2014. Praha (CZ), 20.11.2014-21.11.2014]
    R&D Projects: GA ČR GAP103/12/2211
    Institutional support: RVO:67985556
    Keywords : transmittance * reflectance * non-invasive data acquisition * pigments and organic dyes
    Subject RIV: JD - Computer Applications, Robotics

    The knowledge of paint pigments' optical characteristics enables the selection of an appropriate imaging methodology for non-invasice artwork investigation. i. e. optimising the visibility of preparatory layers using conventional photographic cameras modified for data acquisition in the near infrared wavelength range. This contribution deals with the limits of this simple method in the analysis of selected common pigments used in prepared canvas mock-ups with typical structure including ground layer and underdrawings of various compositions.
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