Aachen Day-Night v1.1 dataset is an extended version of the original Aachen Day-Night dataset. Besides the original query images, the Aachen Day-Night v1.1 dataset contains an additional 93 nighttime queries. In addition, it uses a larger 3D model containing additional images. These additional images were extracted from video sequences captured with different cameras. Please refer to Reference Pose Generation for Long-term Visual Localization via Learned Features and View Synthesis for more information.
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