| --- |
| license: cc-by-4.0 |
| task_categories: |
| - object-detection |
| tags: |
| - remote-sensing |
| - point-cloud |
| - building-footprint |
| - geospatial |
| - estonia |
| pretty_name: PCFootprint |
| size_categories: |
| - 10K<n<100K |
| --- |
| |
| # PCFootprint: A Large-scale Benchmark for Vectorized Building Footprint Extraction from ALS 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: |
|
|
| ```text |
| PCFootprint/ |
| ├── Mainland/ |
| │ ├── pointcloud/ # Point cloud data (e.g., .laz) |
| │ └── footprint/ # Vectorized footprint annotations (e.g., .json) |
| └── Islands/ |
| ├── pointcloud/ |
| └── footprint/ |
| ``` |
| --- |
|
|
| ## ⚖️ 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)](https://geoportaal.maaruum.ee/docs/Avaandmed/ETAK_open_data_licence.pdf). |
|
|
