remove single data points
Hi I have a pointcloud and i want to remove all single data point which have no specified number ofneighbours. I found the pcl filer nodelet and the RadiusOutlierRemoval which does this think. But I found only one example how do use it as a part of the launch file. I know how to start but i dont know which parameters i must use to configure the radius and the number of neighbours. Following you see the example which i found. But i dont understand what i must configure to remove all data points without 4 neighbours in a radius of 0.2m?!
<node pkg="nodelet" type="nodelet" name="psx" args="load pcl/RadiusOutlierRemoval box_filter_pcl_manager" output="screen">
<remap from="~input" to="/mr/ti_radar/RScan" />
<rosparam>
mean_k: 5
stddev: 1.0
</rosparam>
</node>