Datasets:
PCFootprint: A Large-scale Benchmark for Vectorized Building Footprint Extraction from ALS Point Clouds
This is the dataset for the paper PCFootprint: A Large-Scale Dataset and Benchmark for Vectorized Building Footprint Extraction from Aerial LiDAR Point Clouds.
PCFootprint introduces the first extensive, open-source benchmark specifically engineered for the vectorized extraction of building footprints from ALS point clouds. Sourced from the Estonian Land and Spatial Development Board, the dataset spans a vast geographic extent of 540.67 km², comprising 33,000 standardized tiles and 227,264 meticulously annotated building instances across diverse urban and rural landscapes.
📊 Dataset Specifications
The detailed specifications of the PCFootprint dataset are summarized below:
| Property | Details |
|---|---|
| Subsets | Mainland, Islands |
| Data Type | ALS Point Cloud |
| Annotation Format | Vectorized Polygon |
| Accessibility | Open-source |
| Point Spacing [m] | 0.22 – 1.09 |
| Tile Size [m] | 128 × 128 |
| Total Tiles | 33,000 |
| Building Instances | 227,264 |
| Coverage [km²] | 540.67 |
📂 Data Structure
The dataset is organized into two primary subsets representing different geographic characteristics of Estonia:
PCFootprint/
├── Mainland/
│ ├── pointcloud/ # Point cloud data (e.g., .laz)
│ └── <train|test|val>.json # Vectorized footprint annotations (e.g., .json)
└── Islands/
├── pointcloud/
└── test.json
⚖️ License & Acknowledgement
Dataset License
The PCFootprint dataset is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0).
Data Origin & Source Attribution
The development of this dataset was made possible through the open data provided by the Republic of Estonia Land and Spatial Development Board. We gratefully acknowledge the following data sources used in the creation of PCFootprint:
- Elevation / Raw LiDAR Data: (2021-2024)
- Administrative Units / County Data: (2025)
- Topographic Database (ETAK) / Buildings: (2021-2024)
All original data are used in accordance with the Estonian Land Board Open Data Licence (01.01.2025).
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