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Mesurements not matching constraints used for calibration

 
n°947
meillier
Posted on 10-31-2006 at 03:35:35 AM  profilanswer
 

Hi.
 
1)
 
I don't get it.
To solve this scene i used planar and right angle constraints.
I know that sometimes, when you define a constraint among markers and IM cannot find a solution with the constraints all valid, IM will warn you.
 
But at No point did i get such warning. So i assume all my constraints are valid.
 
However, when making angle measurements on the angles that i constrainted to be 90 deg, IM tells me that they aren't (89.7, 90.2,...).
 
2)
 
i read posts talking about distomia. Stef said we could find it under Freeware once logged in wiht our customer account.
I cannot find it. Is it still available for download somewhere?
 
Thanks.

n°948
meillier
Posted on 10-31-2006 at 06:51:05 PM  profilanswer
 

i would post pics but for some reason i can't attach any file.
 
For example, for one of the zip files i tried to attach i got this error message:
 
Upload Error: Could not upload Attachment to ./files/realviz1_202.zip.
 
my zip file is named realviz1.zip which is different form the filename above....
 
Tried jpeg, gif, zip and all are <1Mb...

n°949
stef
Posted on 11-02-2006 at 10:00:19 AM  profilanswer
 

Hello,
 
 About the calibration constraints.
The constraints in IM are there to help calibration only. They are not rigid constraints for modeling.
The calibration process is a minimisation process, so the computed cameras are the closest possible to all the markers/constraints you entered.
 
Best,
 
Stef


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