LIGHTHOUSE: Fast and precise distance to shoreline calculations from anywhere on earth
- URL: http://arxiv.org/abs/2506.18842v1
- Date: Mon, 23 Jun 2025 17:00:34 GMT
- Title: LIGHTHOUSE: Fast and precise distance to shoreline calculations from anywhere on earth
- Authors: Patrick Beukema, Henry Herzog, Yawen Zhang, Hunter Pitelka, Favyen Bastani,
- Abstract summary: We introduce a new dataset and algorithm for fast and efficient coastal distance calculations from Anywhere on Earth (AoE)<n>We provide a global coastline dataset at 10 meter resolution, a 100+ fold improvement in precision over existing data.<n>To handle the computational challenge of querying at such an increased scale, we introduce a new library: Layered Iterative Geospatial Hierarchical Terrain-Oriented Unified Search Engine (Lighthouse)
- Score: 4.841249373076213
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We introduce a new dataset and algorithm for fast and efficient coastal distance calculations from Anywhere on Earth (AoE). Existing global coastal datasets are only available at coarse resolution (e.g. 1-4 km) which limits their utility. Publicly available satellite imagery combined with computer vision enable much higher precision. We provide a global coastline dataset at 10 meter resolution, a 100+ fold improvement in precision over existing data. To handle the computational challenge of querying at such an increased scale, we introduce a new library: Layered Iterative Geospatial Hierarchical Terrain-Oriented Unified Search Engine (Lighthouse). Lighthouse is both exceptionally fast and resource-efficient, requiring only 1 CPU and 2 GB of RAM to achieve millisecond online inference, making it well suited for real-time applications in resource-constrained environments.
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