A Conditional Generative Adversarial Network to Fuse Sar And Multispectral Optical Data For Cloud Removal From Sentinel-2 Images

In this paper, we present the first conditional generative adversarial network (cGAN) architecture that is specifically designed to fuse synthetic aperture radar (SAR) and optical multi-spectral (MS) image data to generate cloud- and haze-free MS optical data from a cloud-corrupted MS input and an auxiliary SAR image. Experiments on Sentinel-2 MS and Sentinel-l SAR data confirm that our extended SAR-Opt-cGAN model utilizes the auxiliary SAR information to better reconstruct MS images than an equivalent model which uses the same architecture but only single-sensor MS data as input.

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Results from the Paper


Task Dataset Model Metric Name Metric Value Global Rank Benchmark
Cloud Removal SEN12MS-CR SAR-Opt-cGAN MAE 0.043 # 5
PSNR 25.59 # 5
SAM 15.494 # 5
SSIM 0.764 # 5

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