Energy optimization of a light projection system for buildings that virtually restores artworks

Vázquez Molini, Daniel; Álvarez Fernández-Balbuena, Antonio; Canabal Boutureira, Héctor Alfonso; Muro, Carmen; Durmus, D.; Davis, W.; Benítez Iglesias, Antonio Jesús; Mayorga Pinilla, Santiago

Energy optimization of a light projection system for buildings that virtually restores artworks

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Daniel Vazquez_Illumination system restoration_Nov_2019.pdf (12.36 MB)

Official URL

https://doi.org/10.1016/j.daach.2019.e00128

Publication date

2019

Publisher

Elsevier

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URI

https://hdl.handle.net/20.500.14352/5982

Citation

Vázquez Molini, D., Álvarez Fernández-Balbuena, A., Canabal Boutureira, H. A. et al. «Energy Optimization of a Light Projection System for Buildings That Virtually Restores Artworks». Digital Applications in Archaeology and Cultural Heritage, vol. 16, marzo de 2020, p. e00128. DOI.org (Crossref), https://doi.org/10.1016/j.daach.2019.e00128.

Abstract

The need to achieve energy efficiency standards in the lighting systems of buildings makes it necessary to optimize all aspects of them. Here, the development of a light projection system that achieves this goal by studying and modifying the spectral output, compared to conventional illumination, is described. A lighting system that estimates the reflectance characteristics of artwork and emits optimized lighting can reduce light absorption. A damage-minimizing point-by-point light projection system is developed using an optimization algorithm, to improve the appearance of the surfaces of artworks whose color has faded. In this case, a simulation of an aged oil painting was made by manipulating the original photograph, which was printed and to which the proposed system was applied. The results show that, when the aged printed image is illuminated with the optimized light source, it appears indistinguishable from the non-aged oil painting.