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Quantifying noise in a Pointcloud

Posted: Fri Feb 18, 2022 3:21 pm
by JMerridew
Hi,
I'm super new to cloudcompare and was wondering if there is a way to quantify the amount of noise within a pointcloud. I have been able to filter out the noise and work out the percentage of points that the algorithm considered noise but I'm looking for a figure which represents the size of the noise (preferably in cm/mm).
Tried conducting a mesh to pointcloud analysis but was unsuccessful. Any advice you could give would be amazing.

Re: Quantifying noise in a Pointcloud

Posted: Sat Feb 19, 2022 8:57 pm
by daniel
So, if you only have a point cloud and no reference, the 'roughness' measure could give you some information about the noise: see https://www.cloudcompare.org/doc/wiki/i ... =Roughness

And if you have a point cloud, and a reference mesh, then yes, you should be able to compare both with https://www.cloudcompare.org/doc/wiki/i ... h_Distance (assuming they are already registered, if not you'll have to do it first!)

Re: Quantifying noise in a Pointcloud

Posted: Thu Feb 24, 2022 2:40 pm
by JMerridew
Thank you:)