Segments the input point cloud into forest floor and above-ground biomass (AGB) using a two-stage DTM approach: 1. Create coarse DTM (e.g., 0.5m resolution) with outlier removal and gap filling 2. Interpolate fine DTM_small (0.1m resolution) from filled coarse DTM 3. Extract points within vertical tolerance of DTM_small surface
This approach is robust on sloped or irregular terrain.
Usage
Floseg(
a,
filename = "XXX",
dtm_coarse_res = 0.5,
dtm_fine_res = 0.1,
tolerance = 0.4,
clean_outliers = TRUE,
outlier_k = 1,
output_path = tempdir()
)Arguments
- a
Input point cloud data frame (x,y,z columns) or file path (.xyz)
- filename
Output file prefix (default = "XXX")
- dtm_coarse_res
Coarse DTM resolution in meters (default = 0.5)
- dtm_fine_res
Fine DTM resolution in meters (default = 0.1)
- tolerance
Vertical tolerance for floor extraction in meters (default = 0.4)
- clean_outliers
Remove local outliers from coarse DTM (default = TRUE)
- outlier_k
Z-score threshold for outlier removal (default = 1)
- output_path
Directory where output files will be written (default = tempdir())