Publication: Energy optimization of a light projection system for buildings that virtually restores artworks
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Publication Date
2019-11
Authors
Vázquez Moliní, Daniel
Canabal Boutureira, Héctor
Muro, Carmen
Durmus, D
Davis, w
Benítez Iglesias, Antonio Jesús
Mayorga Pinilla, Santiago
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Elsevier
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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.
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Received 18 June 2019, Revised 5 November 2019, Accepted 22 November 2019, Available online 27 November 2019.