Classify noise points

Classify points using Isolated Point Filter (IPF). The stage identifies points that have only a few other points in their surrounding sphere neighborhood and edits the points to assign a target classification. Used with class 18, it classifies points as noise. With a r = 1 and n = 0: if a point has 0 neighbor within a radius of 1 m it is reclassified. With a r = 2 and n = 1: if a point has 0 or 1 neighbor within a radius of 2 m it is reclassified. This stage modifies the point cloud in the pipeline but does not produce any output.

Usage

classify_with_ipf(r = 1, n = 0L, class = 18L)

Arguments

r

numeric. Radius of the sphere.

n

integer. The maximal number of 'other points' in the sphere. Less than that and the point is reclassified

class

integer. The class to assign to the points that match the condition.

Value

This stage transforms the point cloud in the pipeline. It consequently returns nothing.