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1 August 2023 Spectral fitting study of the CIE standard illuminant D65 based on monochromatic LED
Chaoyang Zhang, Qipeng He, Xiao Li, Bo He, Wensheng Feng, Qiufeng Zhang, Xiaoyang He
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Proceedings Volume 12754, Third International Conference on Computer Vision and Pattern Analysis (ICCPA 2023); 127541E (2023) https://doi.org/10.1117/12.2684251
Event: 2023 3rd International Conference on Computer Vision and Pattern Analysis (ICCPA 2023), 2023, Hangzhou, China
Abstract
The color assessment cabinet has important applications in the color fields of textiles, pigments, printing and dyeing, packaging, and photography. In order to achieve the spectral matching of CIE standard illuminant D65 using monochromatic LEDs, in this paper, we use genetic algorithm (GA) as the spectral matching algorithm, measure the absolute spectra of monochromatic LEDs and establish a database, optimize the parameters of the algorithm through simulation experiments, and optimize the combination of monochromatic LEDs using decreasing experiments to achieve the purpose of using fewer kinds of monochromatic LEDs to obtain a better fit with the target spectrum. The results show that the correlation indices R^2 and RMSE of 30 monochromatic LED combinations fitting D65 spectrum are 0.905 and 0.946, respectively, with high matching degree of D65 spectrum; 16 LED combinations fitting D65 spectrum are proposed by decreasing experiments, which have good fitting effect and reduce the difficulty of engineering practice.
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Chaoyang Zhang, Qipeng He, Xiao Li, Bo He, Wensheng Feng, Qiufeng Zhang, and Xiaoyang He "Spectral fitting study of the CIE standard illuminant D65 based on monochromatic LED", Proc. SPIE 12754, Third International Conference on Computer Vision and Pattern Analysis (ICCPA 2023), 127541E (1 August 2023); https://doi.org/10.1117/12.2684251
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KEYWORDS
Light emitting diodes
Genetic algorithms
Color
Mathematical optimization
Matrices
Light sources
Integrating spheres
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