论文标题
开放高分辨率卫星图像：WorldStrat数据集 - 应用于超分辨率
Open High-Resolution Satellite Imagery: The WorldStrat Dataset -- With Application to Super-Resolution
论文作者
论文摘要
通过卫星图像和机器学习对行星进行大规模分析是一个梦想，它不断受到难以访问高度代表性的高分辨率图像的成本的阻碍。为了进行纠正，我们在这里介绍WorldStrat数据集。 The largest and most varied such publicly available dataset, at Airbus SPOT 6/7 satellites' high resolution of up to 1.5 m/pixel, empowered by European Space Agency's Phi-Lab as part of the ESA-funded QueryPlanet project, we curate nearly 10,000 sqkm of unique locations to ensure stratified representation of all types of land-use across the world: from agriculture to ice caps, from forests to multiple urbanization密度。我们还丰富了通常在ML数据集中代表不足的地点的人：人道主义兴趣的地点，非法采矿地点以及有风险的人的定居点。我们以10 m/pixel的可自由访问的下分辨率Sentinel-2卫星的多个低分辨率图像为暂时匹配每个高分辨率图像。我们伴随着该数据集的开源Python软件包，以：重建或扩展WorldStrat数据集，训练和推断基线算法，并使用丰富的教程学习，所有这些都与流行的EO-Learn工具箱兼容。我们特此希望能够促进ML在卫星图像中的广泛应用应用，并可能从免费的公共低分辨率Sentinel2图像中发展出昂贵的私人高分辨率图像所允许的相同分析能力。我们通过训练并发布了有关多帧超分辨率任务的几个高度计算效率的基线来说明这一特定点。高分辨率空中图像是CC BY-NC，而标签和Sentinel2图像是CC，而BSD下的源代码和预训练的模型。该数据集可在https://zenodo.org/record/6810791上获得，并在https://github.com/worldstrat/worldstrat上获得。
Analyzing the planet at scale with satellite imagery and machine learning is a dream that has been constantly hindered by the cost of difficult-to-access highly-representative high-resolution imagery. To remediate this, we introduce here the WorldStrat dataset. The largest and most varied such publicly available dataset, at Airbus SPOT 6/7 satellites' high resolution of up to 1.5 m/pixel, empowered by European Space Agency's Phi-Lab as part of the ESA-funded QueryPlanet project, we curate nearly 10,000 sqkm of unique locations to ensure stratified representation of all types of land-use across the world: from agriculture to ice caps, from forests to multiple urbanization densities. We also enrich those with locations typically under-represented in ML datasets: sites of humanitarian interest, illegal mining sites, and settlements of persons at risk. We temporally-match each high-resolution image with multiple low-resolution images from the freely accessible lower-resolution Sentinel-2 satellites at 10 m/pixel. We accompany this dataset with an open-source Python package to: rebuild or extend the WorldStrat dataset, train and infer baseline algorithms, and learn with abundant tutorials, all compatible with the popular EO-learn toolbox. We hereby hope to foster broad-spectrum applications of ML to satellite imagery, and possibly develop from free public low-resolution Sentinel2 imagery the same power of analysis allowed by costly private high-resolution imagery. We illustrate this specific point by training and releasing several highly compute-efficient baselines on the task of Multi-Frame Super-Resolution. High-resolution Airbus imagery is CC BY-NC, while the labels and Sentinel2 imagery are CC BY, and the source code and pre-trained models under BSD. The dataset is available at https://zenodo.org/record/6810791 and the software package at https://github.com/worldstrat/worldstrat .
