The spacenet 7 dataset is an open source labelled image time series, released for the 7th iteration of the SpaceNet Challenge Series. It includes about 100 unique geographical locations which have had significant urban development over the data collection period. For each area, the earth observation features consist of 24 satellite imagery mosaics over 24 consecutive months provided by Planet at high resolution. Polygon labels of building footprints in the images are included as reference data. The dataset comprises more than 40,000 square meters of imagery, and more than 10 million individual annotations.
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