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http://hdl.handle.net/2445/195960
Title: | Artwork imaging from 370 nm to 1630 nm using a novel multispectral system based on LEDs |
Author: | Herrera-Ramírez, Jorge Vilaseca, Meritxell Burgos, Francisco J. Font Pagès, Lídia Senserrich Espuñes, Rosa Pujol, Jaume |
Keywords: | Conservació i restauració Pintura mural Conservation and restoration Mural painting and decoration |
Issue Date: | 8-Aug-2014 |
Publisher: | Wiley |
Abstract: | 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 |
Note: | Versió postprint del document publicat a: https://doi.org/10.1002/col.21910 |
It is part of: | Color Research and Application, 2014, num. 2, p. 153-160 |
URI: | http://hdl.handle.net/2445/195960 |
Related resource: | https://doi.org/10.1002/col.21910 |
ISSN: | 0361-2317 |
Appears in Collections: | Articles publicats en revistes (Arts Conservació-Restauració) |
Files in This Item:
File | Description | Size | Format | |
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640159.pdf | 1.78 MB | Adobe PDF | View/Open |
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