Non-invasive investigations of a wall painting using optical coherence tomography and hyperspectral imaging

Haida Liang; Rebecca Lange; Helen Howard; Jane Spooner

doi:10.1117/12.890088

20 June 2011 Non-invasive investigations of a wall painting using optical coherence tomography and hyperspectral imaging

Haida Liang, Rebecca Lange, Helen Howard, Jane Spooner

Author Affiliations +

Proceedings Volume 8084, O3A: Optics for Arts, Architecture, and Archaeology III; 80840F (2011) https://doi.org/10.1117/12.890088
Event: SPIE Optical Metrology, 2011, Munich, Germany

Abstract

Multispectral and hyperspectral imaging are efficient methods of measuring spectral reflectance at high spatial resolution. This non-invasive technique has been applied to the imaging of paintings over the last 20 years. PRISMS (Portable Remote Imaging System for Multispectral Scanning) was designed specifically for imaging wall paintings. Optical Coherence Tomography (OCT) is a low coherence interferometric technique capable of fast non-invasive imaging of subsurface microstructure. This paper shows the first application of in situ OCT imaging of a wall painting. The combination of PRISMS and OCT gives information on the varnish and paint layer structure, pigment identification, the state of degradation of the paint and varnish layers and informing curators on the painting schemes and techniques.

Citation Download Citation

Haida Liang, Rebecca Lange, Helen Howard, and Jane Spooner "Non-invasive investigations of a wall painting using optical coherence tomography and hyperspectral imaging", Proc. SPIE 8084, O3A: Optics for Arts, Architecture, and Archaeology III, 80840F (20 June 2011); https://doi.org/10.1117/12.890088

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