filters.ground¶

The Ground filter passes data through the Point Cloud Library (PCL) ProgressiveMorphologicalFilter algorithm.

ProgressiveMorphologicalFilter is an implementation of the method described in [Zhang2003].

[Zhang2003]

Zhang, Keqi, et al. “A progressive morphological filter for removing nonground measurements from airborne LIDAR data.” Geoscience and Remote Sensing, IEEE Transactions on 41.4 (2003): 872-882.

Options¶

maxWindowSize: Maximum window size. [Default: 33]
slope: Slope. [Default: 1.0]
max_distance: Maximum distance. [Default: 2.5]
initial_distance: Initial distance. [Default: 0.15]
cell_size: Cell Size. [Default: 1]
classify: Apply classification labels? [Default: true]
extract: Extract ground returns? [Default: false]
approximate: Use approximate algorithm? [Default:: false]