Picture of neon light reading 'Open'

Discover open research at Strathprints as part of International Open Access Week!

23-29 October 2017 is International Open Access Week. The Strathprints institutional repository is a digital archive of Open Access research outputs, all produced by University of Strathclyde researchers.

Explore recent world leading Open Access research content this Open Access Week from across Strathclyde's many research active faculties: Engineering, Science, Humanities, Arts & Social Sciences and Strathclyde Business School.

Explore all Strathclyde Open Access research outputs...

Use of hyperspectral imaging for artwork authentication

Polak, A. and Kelman, T. and Murray, P. and Marshall, S. and Stothard, D.J.M. and Eastaugh, N. and Eastaugh, F. (2016) Use of hyperspectral imaging for artwork authentication. In: International Association for Spectral Imaging, 2016-07-03 - 2016-07-06.

[img]
Preview
Text (Polak-IASIM-2017-Use-of-hyperspectral-imaging-for-artwork-authentication)
Polak_IASIM_2017_Use_of_hyperspectral_imaging_for_artwork_authentication.pdf - Final Published Version

Download (309kB) | Preview

Abstract

In recent years various scientific practices have been adapted to the artwork analysis process and a set of techniques was found advantageous for conservation and restoration works. Apart of these applications, art market also benefits from scientific testing of artwork. Although these services are available to determine authenticity of traded pieces, they are very expensive and time consuming and therefore serve only very limited range of transactions. As a response for requirements of growing market there is a need for rapid and non-destructive methods empowering art authentication. Hyperspectral imaging combined with signal processing and classification techniques are proposed as a tool to enhance the identification of art forgeries. Using bespoke paintings designed for this work, a spectral library of selected pigments was established and the viability of training and the application of classification techniques based on this data was demonstrated. Developed techniques were used for the analysis of actual forged paintings held by the Berlin police, which comprised known and suspected forgeries from the infamous Beltracchi case. The analysis resulted in the identification of anachronistic paint, confirming the falsity of the artwork. Figure 1 illustrates one of analysed paintings and result of the classification, indicating Titanium White – a pigment known as anachronistic for this case.