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Volume: 49 | Article ID: art00004
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Calibration and Spectral Reconstruction for CRISATEL: An Art Painting Multispectral Acquisition System
  DOI :  10.2352/J.ImagingSci.Technol.2005.49.6.art00004  Published OnlineNovember 2005
Abstract

The CRISATEL multispectral acquisition system is dedicated to the digital archiving of fine art paintings. It is composed of a dynamic lighting system and of a high resolution camera equipped with a CCD linear array, 13 interference filters and several built-in electronically controlled mechanisms. A custom calibration procedure has been designed and implemented. It allows us to select the parameters to be used for the raw image acquisition and to collect experimental data, which will be used in the post processing stage to correct the obtained multispectral images. Various techniques have been tested and compared in order to reconstruct the spectral reflectance curve of the painting surface imaged in each pixel. Realistic color rendering under any illuminant can then be obtained from this spectral reconstruction. The results obtained with the CRISATEL acquisition system and the associated multispectral image processing are shown on two art painting examples.

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Alejandro Ribés, Francis Schmitt, Ruven Pillay, Christian Lahanier, "Calibration and Spectral Reconstruction for CRISATEL: An Art Painting Multispectral Acquisition Systemin Journal of Imaging Science and Technology,  2005,  pp 563 - 573,  https://doi.org/10.2352/J.ImagingSci.Technol.2005.49.6.art00004

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Copyright © Society for Imaging Science and Technology 2005
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