ISO 15469 CIE S 011/2003 standard sky classification using luminance distribution data obtained through HDR images

Authors

DOI:

https://doi.org/10.54753/cedamaz.v13i1.1734

Keywords:

Solar energy, Renewable energy, CIE sky classification, ISO 15469 CIE 011/2003, High dynamic range (HDR) images

Abstract

The use of solar energy as a renewable energy source depends on our ability to estimate the amount of energy that comes from the sun. For this reason, numerous studies have been proposed with the intention of establishing methods for the forecast of the energy received from the sky, so it was necessary to standardize the wide range of skies in the world by means of the ISO 15469 CIE 011/2003 standard. This work has compared the results of the classification of CIE skies obtained by means of two classification methods: by comparison of the theoretical gradation and indicatrix functions and the homonymous groups observed and by comparison of the RMSE mean square error between the luminance distributions of the celestial vault and the theoretical luminances defined by the CIE standard.The luminance distribution data used comes from high dynamic range (HDR) images. It has been found that approximately 50% of the analyzed images coincide in the classification, however, it has been observed that 37% of the images that do not show coincidences differ from a maximum of two types of classification.

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Published

2023-06-30

How to Cite

Ramirez-Cabrera, F. (2023). ISO 15469 CIE S 011/2003 standard sky classification using luminance distribution data obtained through HDR images. CEDAMAZ, 13(1), 44–55. https://doi.org/10.54753/cedamaz.v13i1.1734

Issue

Vol. 13 No. 1 (2023): CEDAMAZ

Section

Ciencias exactas e ingenierías

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