How to extract Unclassified Points in CANUPO
Posted: Thu Apr 27, 2017 5:58 am
Hey Daniel!
I used a confidence threshold of 0.90 in CANUPO, which means points with confidence threshold lower than 0.90 were neither classified into ground class nor to non-ground(veg) class.
When I use Edit>Scalar Field>Filter by Value, it gives me two point clouds representing the two classes (i.e SF=1=> ground; and SF=2=> non-ground). However, I'm unable to filter the points that were not classified by CANUPO (i.e. points for which CANUPO had a confidence threshold lower than 0.90).
Is there a way that I could filter and separately view those un-classified points?
Also, can cloudcompare subtract two point clouds, like a DEM of difference? I mean PC=PC(A) - PC(B)? If so, that also solves the issue above.
Regards,
Umair.
I used a confidence threshold of 0.90 in CANUPO, which means points with confidence threshold lower than 0.90 were neither classified into ground class nor to non-ground(veg) class.
When I use Edit>Scalar Field>Filter by Value, it gives me two point clouds representing the two classes (i.e SF=1=> ground; and SF=2=> non-ground). However, I'm unable to filter the points that were not classified by CANUPO (i.e. points for which CANUPO had a confidence threshold lower than 0.90).
Is there a way that I could filter and separately view those un-classified points?
Also, can cloudcompare subtract two point clouds, like a DEM of difference? I mean PC=PC(A) - PC(B)? If so, that also solves the issue above.
Regards,
Umair.