Vázquez, D.Fernández Balbuena, A. A.Canabal, H.Muro, C.Durmus, D.Davis, W.Benítez Iglesias, Antonio JesúsMayorga, S.2023-08-292023-08-292020-03-31Vázquez, D., Fernández-Balbuena, A. Á., Canabal, H. A., Muro, C., Durmus, D., Davis, W., Benítez, A. J., & Mayorga, S. A. (2020). Energy optimization of a light projection system for buildings that virtually restores artworks. Digital Applications in Archaeology and Cultural Heritage, 16, e00128.2212-0548https://hdl.handle.net/10016/38124Published March 2022: Erratum regarding missing Declaration of Competing Interest statements in previously published articles - Part 1 (Digital Applications in Archaeology and Cultural Heritage, Volume 24, March 2022, Pages e00209). DOI: https://doi.org/10.1016/j.daach.2021.e00209; Erratum incluido en el documentoThe 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 studyingand modifying the spectral output, compared to conventional illumination, is described. A lighting system thatestimates the reflectance characteristics of artwork and emits optimized lighting can reduce light absorption. Adamage-minimizing point-by-point light projection system is developed using an optimization algorithm, toimprove the appearance of the surfaces of artworks whose color has faded. In this case, a simulation of an aged oilpainting was made by manipulating the original photograph, which was printed and to which the proposedsystem was applied. The results show that, when the aged printed image is illuminated with the optimized lightsource, it appears indistinguishable from the non-aged oil painting.16eng© 2019 The Authors. Published by Elsevier Ltd.Atribución-NoComercial-SinDerivadas 3.0 EspañaIllumination system buildingsVirtual restorationEnergy optimizationresearch articleCiencias de la InformaciónÓpticahttps://doi.org/10.1016/j.daach.2019.e00128open access1e0012816Digital Applications in Archaeology and Cultural Heritage (Digital Applications in Archaeology and Cultural Heritage)16AR/0000026210