Removing cloud shadows from ground-based solar imagery

• URL: http://arxiv.org/abs/2407.13379v1
• Date: Thu, 18 Jul 2024 10:38:24 GMT
• Title: Removing cloud shadows from ground-based solar imagery
• Authors: Amal Chaoui, Jay Paul Morgan, Adeline Paiement, Jean Aboudarham,
• Abstract summary: We propose a new method to remove cloud shadows, based on a U-Net architecture, and compare classical supervision with conditional GAN. We evaluate our method on two different imaging modalities, using both real images and a new dataset of synthetic clouds.
• Score: 0.33748750222488655
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The study and prediction of space weather entails the analysis of solar images showing structures of the Sun's atmosphere. When imaged from the Earth's ground, images may be polluted by terrestrial clouds which hinder the detection of solar structures. We propose a new method to remove cloud shadows, based on a U-Net architecture, and compare classical supervision with conditional GAN. We evaluate our method on two different imaging modalities, using both real images and a new dataset of synthetic clouds. Quantitative assessments are obtained through image quality indices (RMSE, PSNR, SSIM, and FID). We demonstrate improved results with regards to the traditional cloud removal technique and a sparse coding baseline, on different cloud types and textures.

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