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2014-08-08

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/195960

Artwork imaging from 370 nm to 1630 nm using a novel multispectral system based on LEDs

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Recurs relacionat

https://doi.org/10.1002/col.21910

Resum

The recent use of multispectral systems as a noncontact method for analysis of artworks has already shown promising results. This study explains the application of a novel portable multispectral system based on light-emitting diodes (LEDs) for artwork imaging. This method provides spectral information in a spectral range from 370 to 1630 nm with a 25 cm × 25 cm field of view by using two different image sensors in synchrony with 23 bands of irradiation. The spectral information for each point is estimated and validated using the pseudo-inverse and spline interpolation methods for spectral estimation and three different evaluation metrics. The results of the metrics obtained with both estimation methods show a general good performance of the system over the whole spectral range. The experiments also showed that the selection of the training set for the pseudo-inverse estimation has a great influence in its performance, and thus, it defines whether or not the pseudo-inverse outperforms the spline interpolation method. The system is applied in situ to the study of Catalan art masterpieces, and the results demonstrate the potential of a cost-effective and versatile system using various off-the-shelf elements to reconstruct color information and to reveal features not previously identified. © 2014 Wiley Periodicals, Inc. Col Res Appl, 2014

Matèries

Conservació i restauració, Pintura mural

Matèries (anglès)

Conservation and restoration, Mural painting and decoration

Citació

Col·leccions

Articles publicats en revistes (Arts Conservació-Restauració)

Citació

HERRERA-RAMÍREZ, Jorge, et al. Artwork imaging from 370 nm to 1630 nm using a novel multispectral system based on LEDs. Color Research and Application. 2014. Vol. 2, num. 153-160. ISSN 0361-2317. [consulted: 16 of August of 2026]. Available at: https://hdl.handle.net/2445/195960

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