Aachen Day-Night

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Aachen Day-Night is a dataset designed for benchmarking 6DOF outdoor visual localization in changing conditions. It focuses on localizing high-quality night-time images against a day-time 3D model. There are 14,607 images with changing conditions of weather, season and day-night cycles.

Source: Benchmarking 6DOF Outdoor Visual Localization in Changing Conditions