Filippo Barba
A generative adversarial network approach to single image super-resolution of open-source satellite imagery.
Rel. Roberto Fontana. Politecnico di Torino, Corso di laurea magistrale in Data Science And Engineering, 2021
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Abstract
Image super-resolution is a widely studied ill-posed problem in computer vision, where the objective is to convert a low-resolution image to a high-resolution one. Conventional methods for achieving super-resolution, such as interpolation-based methods, require a lot of pre/post-processing and optimization. Thanks to the rise in popularity of Deep Learning methods over recent years, several studies have shown how learning methods such as convolutional neural networks and generative adversarial networks can be used to perform super-resolution tasks with competitive results when compared to prior state of the art methods. This thesis proposes a focus on the application of super-resolution methods to open-source low-resolution satellite imagery gathered from the Sentinel-2 ESA’s satellite in the RGB domain.
The open data policy plays an important role in the choice of this dataset, alongside other key characteristics of the Sentinel-2 mission, most notably the high revisitation frequency of the global covered area from 56°S to 84°N, which happens every 10 days under the same viewing angles
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