A novel approach in process DHSPI data for surface displacement measurements of museum artworks

Jessica Auber-Le Saux; Vincent Detalle; Michalis Andrianakis; Xueshi Bai; Nicolas Wilkie-Chancellier; Vivi Tornari

doi:10.1117/12.2592540

20 June 2021 A novel approach in process DHSPI data for surface displacement measurements of museum artworks

Jessica Auber-Le Saux, Vincent Detalle, Michalis Andrianakis, Xueshi Bai, Nicolas Wilkie-Chancellier, Vivi Tornari

Proceedings Volume 11784, Optics for Arts, Architecture, and Archaeology VIII; 117840F (2021) https://doi.org/10.1117/12.2592540
Event: SPIE Optical Metrology, 2021, Online Only

Abstract

Digital Holographic Speckle Pattern Interferometry has already been developed for preventive conservation and can monitor directly the changes at the surface of artworks. The system is based on speckle interferometry with phase-shift and gives the deformation of the analysed object. The existing data process consists of removing the noise of the interferogram, unwrapping this image and deriving and displaying 2D or 3D map deformation. To improve the time duration and accuracy of data imaging treatment, we developed an easier and faster processing method. We created a denoising methodology of interference pattern generated during data acquisition based on stationary wavelet transform.

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Citation Download Citation

Jessica Auber-Le Saux, Vincent Detalle, Michalis Andrianakis, Xueshi Bai, Nicolas Wilkie-Chancellier, and Vivi Tornari "A novel approach in process DHSPI data for surface displacement measurements of museum artworks", Proc. SPIE 11784, Optics for Arts, Architecture, and Archaeology VIII, 117840F (20 June 2021); https://doi.org/10.1117/12.2592540

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