Ground points

pointcloud.ground_points

Input:

pointclouds – Pointcloud
mean_k – Int
multiplier – Float
slope – Float
window – Float
threshold – Float
scalar – Float

Output:

output – Pointcloud

Extracts the ground points from pointclouds using the Simple Morphological Filter (SMRF). Statistical outliers are removed first, SMRF then classifies the ground returns and finally only the ground points are kept.

mean_k is the number of nearest neighbours used by the statistical outlier filter. The default is 8.

multiplier is the standard-deviation multiplier used to decide which points are outliers. The default is 3.0.

slope is the SMRF slope parameter. The default is 0.15.

window is the SMRF maximum window size in metres. The default is 18.

threshold is the SMRF elevation threshold. The default is 0.5.

scalar is the SMRF elevation scalar. The default is 1.25.