Explicit basis function kernel methods for cloud segmentation in infrared sky images

Photovoltaic systems are sensitive to cloud shadow projection, which needs to be forecasted to reduce the noise impacting the intra-hour forecast of global solar irradiance. We present a comparison between different kernel discriminative models for cloud detection. The models are solved in the prima...

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Main Authors: Guillermo Terrén-Serrano, Manel Martínez-Ramón
Format: article
Language:EN
Published: Elsevier 2021
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Online Access:https://doaj.org/article/4cd7143a032e4675a62fb9fe311d1f28
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spelling oai:doaj.org-article:4cd7143a032e4675a62fb9fe311d1f282021-11-26T04:32:39ZExplicit basis function kernel methods for cloud segmentation in infrared sky images2352-484710.1016/j.egyr.2021.08.020https://doaj.org/article/4cd7143a032e4675a62fb9fe311d1f282021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352484721006235https://doaj.org/toc/2352-4847Photovoltaic systems are sensitive to cloud shadow projection, which needs to be forecasted to reduce the noise impacting the intra-hour forecast of global solar irradiance. We present a comparison between different kernel discriminative models for cloud detection. The models are solved in the primal formulation to make them feasible in real-time applications. The performances are compared using the j-statistic. The infrared cloud images have been preprocessed to remove debris, which increases the performance of the analyzed methods. The use of the pixels’ neighboring features also leads to a performance improvement. Discriminative models solved in the primal yield a dramatically lower computing time along with high performance in the segmentation.Guillermo Terrén-SerranoManel Martínez-RamónElsevierarticleCloud segmentationMachine learningKernel methodsSky imagingSolar forecastingElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 7, Iss , Pp 442-450 (2021)
institution DOAJ
collection DOAJ
language EN
topic Cloud segmentation
Machine learning
Kernel methods
Sky imaging
Solar forecasting
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
spellingShingle Cloud segmentation
Machine learning
Kernel methods
Sky imaging
Solar forecasting
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Guillermo Terrén-Serrano
Manel Martínez-Ramón
Explicit basis function kernel methods for cloud segmentation in infrared sky images
description Photovoltaic systems are sensitive to cloud shadow projection, which needs to be forecasted to reduce the noise impacting the intra-hour forecast of global solar irradiance. We present a comparison between different kernel discriminative models for cloud detection. The models are solved in the primal formulation to make them feasible in real-time applications. The performances are compared using the j-statistic. The infrared cloud images have been preprocessed to remove debris, which increases the performance of the analyzed methods. The use of the pixels’ neighboring features also leads to a performance improvement. Discriminative models solved in the primal yield a dramatically lower computing time along with high performance in the segmentation.
format article
author Guillermo Terrén-Serrano
Manel Martínez-Ramón
author_facet Guillermo Terrén-Serrano
Manel Martínez-Ramón
author_sort Guillermo Terrén-Serrano
title Explicit basis function kernel methods for cloud segmentation in infrared sky images
title_short Explicit basis function kernel methods for cloud segmentation in infrared sky images
title_full Explicit basis function kernel methods for cloud segmentation in infrared sky images
title_fullStr Explicit basis function kernel methods for cloud segmentation in infrared sky images
title_full_unstemmed Explicit basis function kernel methods for cloud segmentation in infrared sky images
title_sort explicit basis function kernel methods for cloud segmentation in infrared sky images
publisher Elsevier
publishDate 2021
url https://doaj.org/article/4cd7143a032e4675a62fb9fe311d1f28
work_keys_str_mv AT guillermoterrenserrano explicitbasisfunctionkernelmethodsforcloudsegmentationininfraredskyimages
AT manelmartinezramon explicitbasisfunctionkernelmethodsforcloudsegmentationininfraredskyimages
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