Single Image Cloud Detection via Multi-Image Fusion
Autor: | Workman, Scott, Rafique, M. Usman, Blanton, Hunter, Greenwell, Connor, Jacobs, Nathan |
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Rok vydání: | 2020 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | Artifacts in imagery captured by remote sensing, such as clouds, snow, and shadows, present challenges for various tasks, including semantic segmentation and object detection. A primary challenge in developing algorithms for identifying such artifacts is the cost of collecting annotated training data. In this work, we explore how recent advances in multi-image fusion can be leveraged to bootstrap single image cloud detection. We demonstrate that a network optimized to estimate image quality also implicitly learns to detect clouds. To support the training and evaluation of our approach, we collect a large dataset of Sentinel-2 images along with a per-pixel semantic labelling for land cover. Through various experiments, we demonstrate that our method reduces the need for annotated training data and improves cloud detection performance. Comment: IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2020 |
Databáze: | arXiv |
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