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license: cc-by-4.0
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# Remote Sensing Dataset: Substation Dataset
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## Description
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The first dataset is curated by TransitionZero and sourced from publicly available data repositories, including OpenSreetMap (OSMF) and Copernicus Sentinel data. The dataset consists of Sentinel-2 images from 27k+ locations; the task is to segment power-substations, which appear in the majority of locations in the dataset. Most locations have 4-5 images taken at different timepoints (i.e., revisits) and each image is of dimension 228x228 pixels. Each image has 13 spectral bands and each band has been linearly interpolated to a spatial resolution of 10m. Lastly, there is one ground truth mask for each location.
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### Key Features
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- **Source:** OpenSreetMap (OSMF) and Copernicus Sentinel data
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- **Resolution:** 10m per pixel
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- **Bands:** 13 Sentinel-2 Bands
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- **Size:** Approximately 70GB
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We utilize this dataset in this [project](https://arxiv.org/abs/2409.17363). In this work, we focus on an applied research question of relevance to climate change mitigation -- power substation segmentation -- that is representative of applied uses of pre-trained models more generally. Through extensive tests of different multi-temporal input schemes across diverse model architectures, we find that fusing representations from multiple revisits in the model latent space is superior to other methods of using revisits, including as a form of data augmentation. We also find that a SWIN Transformer-based architecture performs better than U-nets and ViT-based models.
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license: apache-2.0
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