SKY-LAUT – Carriage-based laser scanner data from Austrian forest stands

This dataset contains 3D point clouds, automatically calculated single tree parameters, reference data, and application videos of carriage-based laserscanning in cable yarding operations. Point clouds from 8 cable corridors and 4 scan varaints are provided in .las format in the folder point_clouds.zip. The individual files are labeled with numeric cable corridor IDs and scan variant IDs. According to standard conventions, a .las file contains a header block, variable-length records, and the point cloud data. The .las files can be read, visualized, and processed with common software programs for point cloud processing (e.g., CloudCompare), and they can also be handled with the free statistical software (e.g., R Foundation for Statistical Computing, Vienna, Austria). The reference and algorithm dataset is provided in a comma-separated values (CSV) file (algorithm_results_reference_data.csv ) and contains the manual and automatic measurements of the single-tree attributes. "stand_id" marks the stand (can be stand_1 or stand_2). "cable_corridor" can range from 1 to 8 and "scan_variant" from 1 to 4. "tree_id_ref" is a continuous id for the trees from the reference data collection. "x_ref", "y_ref", "dbh_ref", "h_ref" and "tree_species" are the coordinates, diameter at breast heigths, tree heights and tree species from the reference data collection. "x_cbls", "y_cbls", "dbh_ref" and "h_cbls" are the coordinates, diameter at breast heigth, tree height and tree species from carriage-based laser scanning point clouds and the automatic algorithm. "dist_to_skyline" is the orthogonal distance from the tree to the skyline. "tree_detection" indicates whether a tree was detected "correct", "non" oder "false" by the automatic algorithm.