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Evaluation of Deep Learning-Based Neural Network Methods for Cloud Detection and Segmentation

Author

Listed:
  • Stefan Hensel

    (Department for Electrical Engineering, University of Applied Sciences Offenburg, Badstraße 24, D-77652 Offenburg, Germany)

  • Marin B. Marinov

    (Department of Electronics, Technical University of Sofia, 8, Kliment Ohridski Blvd., BG-1756 Sofia, Bulgaria)

  • Michael Koch

    (Department for Electrical Engineering, University of Applied Sciences Offenburg, Badstraße 24, D-77652 Offenburg, Germany)

  • Dimitar Arnaudov

    (Department of Power Electronics, Technical University of Sofia, 8, Kliment Ohridski Blvd., BG-1756 Sofia, Bulgaria)

Abstract

This paper presents a systematic approach for accurate short-time cloud coverage prediction based on a machine learning (ML) approach. Based on a newly built omnidirectional ground-based sky camera system, local training and evaluation data sets were created. These were used to train several state-of-the-art deep neural networks for object detection and segmentation. For this purpose, the camera-generated a full hemispherical image every 30 min over two months in daylight conditions with a fish-eye lens. From this data set, a subset of images was selected for training and evaluation according to various criteria. Deep neural networks, based on the two-stage R-CNN architecture, were trained and compared with a U-net segmentation approach implemented by CloudSegNet. All chosen deep networks were then evaluated and compared according to the local situation.

Suggested Citation

  • Stefan Hensel & Marin B. Marinov & Michael Koch & Dimitar Arnaudov, 2021. "Evaluation of Deep Learning-Based Neural Network Methods for Cloud Detection and Segmentation," Energies, MDPI, vol. 14(19), pages 1-14, September.
  • Handle: RePEc:gam:jeners:v:14:y:2021:i:19:p:6156-:d:644194
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    References listed on IDEAS

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    1. Minsu Kim & Hongmyeong Kim & Jae Hak Jung, 2021. "A Study of Developing a Prediction Equation of Electricity Energy Output via Photovoltaic Modules," Energies, MDPI, vol. 14(5), pages 1-11, March.
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    Cited by:

    1. Xuxu Li & Xiaojiang Liu & Yun Xiao & Yao Zhang & Xiaomei Yang & Wenhai Zhang, 2022. "An Improved U-Net Segmentation Model That Integrates a Dual Attention Mechanism and a Residual Network for Transformer Oil Leakage Detection," Energies, MDPI, vol. 15(12), pages 1-15, June.

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