OpenSatMap: A Fine-grained High-resolution Satellite Dataset for Large-scale Map Construction
This dataset addresses the need for high-quality satellite data in the transportation industry, particularly for autonomous driving, though it is incremental as it builds on existing data collection efforts.
The authors tackled the problem of limited satellite datasets for map construction by introducing OpenSatMap, a fine-grained, high-resolution dataset with instance-level annotations, which is the largest of its kind and covers areas aligned with popular autonomous driving datasets.
In this paper, we propose OpenSatMap, a fine-grained, high-resolution satellite dataset for large-scale map construction. Map construction is one of the foundations of the transportation industry, such as navigation and autonomous driving. Extracting road structures from satellite images is an efficient way to construct large-scale maps. However, existing satellite datasets provide only coarse semantic-level labels with a relatively low resolution (up to level 19), impeding the advancement of this field. In contrast, the proposed OpenSatMap (1) has fine-grained instance-level annotations; (2) consists of high-resolution images (level 20); (3) is currently the largest one of its kind; (4) collects data with high diversity. Moreover, OpenSatMap covers and aligns with the popular nuScenes dataset and Argoverse 2 dataset to potentially advance autonomous driving technologies. By publishing and maintaining the dataset, we provide a high-quality benchmark for satellite-based map construction and downstream tasks like autonomous driving.