I am developing the single tree detection method from ALS point clouds. To test the robustness of our proposed method, I need more ALS datasets for experimental analysis. The datasets should own referenced single tree extraction results, such as the (X, Y) coordinates of the tree tops. In so doing, we can conduct quantitative analysis and make comparison. Can anyone provide me some Forestry ALS Datasets for testing single tree detection rate?
Thanks a lot.
A quick search found that there are publicly available ALS data acquisitions by the Finnish National Land Survey.
Sweden also has their ALS forestry data open for all:
https://www.lantmateriet.se/en/maps-and-geographic-information/geodataprodukter/produktlista/laserdata-nedladdning-skog/
I believe that in the following Agronomy publication, you can obtain important bibliography that will help you to solve your question.
Yes, we have a dataset online on PANGAEA: Article Terrestrial, UAV-borne, and airborne laser scanning point cl...
The doi is: https://doi.pangaea.de/10.1594/PANGAEA.933426
It contains the xyz coordinates of the tree stem as "tree position" but also has extracted single tree point clouds in addition to the full plot point clouds.
In addition to ALS data, we also provide ULS and TLS data.
The forest plots are located in Karlsruhe and Bretten, Baden-Württemberg, Germany.
There is a metadata document that describes the details, if you have further questions, just approach me.
(Soon, there will be a new version available, which can then be found here: https://doi.pangaea.de/10.1594/PANGAEA.942856)
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