On The Role of Alias and Band-Shift for Sentinel-2 Super-Resolution

• URL: http://arxiv.org/abs/2302.11494v2
• Date: Mon, 17 Apr 2023 16:24:05 GMT
• Title: On The Role of Alias and Band-Shift for Sentinel-2 Super-Resolution
• Authors: Ngoc Long Nguyen, J\'er\'emy Anger, Lara Raad, Bruno Galerne, Gabriele Facciolo
• Abstract summary: In this work, we study the problem of single-image super-resolution (SISR) of Sentinel-2 imagery. We show that thanks to its unique sensor specification, namely the inter-band shift and alias, that deep-learning methods are able to recover fine details.
• Score: 5.897281612951907
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this work, we study the problem of single-image super-resolution (SISR) of Sentinel-2 imagery. We show that thanks to its unique sensor specification, namely the inter-band shift and alias, that deep-learning methods are able to recover fine details. By training a model using a simple $L_1$ loss, results are free of hallucinated details. For this study, we build a dataset of pairs of images Sentinel-2/PlanetScope to train and evaluate our super-resolution (SR) model.

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