Kalkkinen
Notes on the Dataset
- While the point clouds are georeferenced, the epochs are not aligned horizontally. If all plots are rendered together, they are evenly spaced with the later epochs being on a common (higher) plane above the earlier epoch point clouds. Maybe this offset has been explicitly added, e.g., for visualization purposes.
Detailed Information
| General Information | |
| Name | Kalkkinen |
| Release Year | 2022 |
| Terms of Use | CC BY 4.0 |
| Access Requirements | None |
| Dataset Size | 39.9 MB | Partial download is possible, i.e. the data is split into several files (e.g., epochs or data types) |
| Documentation | Multi-paragraph description of the dataset, e.g., in the form of a paper section or a comprehensive readme file |
| Code | No |
| Applications | Vegetation mapping and monitoring |
| Detailed Applications | Tree growth quantification (and prediction) |
| Acquisition | |
| Number of Scenes | 10 |
| Number of Epochs per Scene (minimum) | 2 |
| Number of Epochs per Scene (median) | 2 |
| Number of Epochs per Scene (maximum) | 2 |
| General Scene Type | Vegetation |
| Specific Scene Type | Forest plot |
| Location | Kalkkinen (Finland) |
| Acquisition Type | Airborne laser scanning |
| Acquisition Device | Toposys Falcon 1 and RIEGL miniVUX-3UAV |
| Acquisition Platform | Aircraft and helicopter | Educated guess by the authors |
| Scan Interval | Years |
| Acquisition Months | Janurary: 0 February: 0 March: 0 April: 0 May: 0 June: 10 July: 0 August: 0 September: 0 October: 0 November: 10 December: 0 |
| Representation | |
| Data Representation | Unstructured, globally aligned (e.g., point cloud or ray cloud) |
| Specific Data Representation | Point cloud |
| File Format/Encoding | Textfile, usually delimiter separated values |
| Raw Data | - |
| Additional Data | Tree metadata |
| Coordinate System | 3067 |
| Quality and Usability | |
| Registration | Not registered |
| Number of Partial Epochs | - |
| Unusable Data Reason | - |
| Splits | No |
| Per-Point Attributes | |
| Intensity/Reflectivity | No |
| Color | No |
| Semantic Labels | - |
| Instance Labels | No |
| Change Labels | - |
| Statistics | |
| Number of Points per Epoch (minimum) | 11K |
| Number of Points per Epoch (median) | 172K |
| Number of Points per Epoch (maximum) | 571K |
| Avg. Point Spacing (minimum) | 9.8cm |
| Avg. Point Spacing (median) | 1.4dm |
| Avg. Point Spacing (maximum) | 1.9dm |
| Avg. Change Points per Epoch | - |
Paper Reference 1
@article{soininen2022treegrowthprediction,
author = {Soininen, Valtteri and Kukko, Antero and Yu, Xiaowei and Kaartinen, Harri and Luoma, Ville and Saikkonen, Otto and Holopainen, Markus and Matikainen, Leena and Lehtomäki, Matti and Hyyppä, Juha},
title = {Predicting Growth of Individual Trees Directly and Indirectly Using 20-Year Bitemporal Airborne Laser Scanning Point Cloud Data},
journal = {Forests},
volume = {13},
year = {2022},
number = {12},
article-number = {2040},
issn = {1999-4907},
doi = {10.3390/f13122040},
}