RMS error too large

Feel free to ask any question here
Post Reply
Anwesha
Posts: 1
Joined: Mon Jul 15, 2024 10:08 am

RMS error too large

Post by Anwesha »

Hello,
I am using CC and facing a problem with RMS error. After importing the .obj and the GCP points I have performed the alignment. Even after choosing the to be aligned points so close to the GCP points the RMS error is 6.67 after alignment. Can you tell me what is the possible reason behind this and how to fix it?
daniel
Site Admin
Posts: 7713
Joined: Wed Oct 13, 2010 7:34 am
Location: Grenoble, France
Contact:

Re: RMS error too large

Post by daniel »

There are multiple reasons, but here are some 'classical' ones:
- how have you imported the GCPs? Do they have large coordinates? If yes, and if you have loaded before using the cloud, have you accepted the suggested global shift?
- have you tried to adjust the scale of the top-be-aligned entity?
- what are the units of the entities (6.67mm is different from 6.67cm ;)
Daniel, CloudCompare admin
Post Reply