[Insight-users] Problems with the orthogonal rotation matrix in versorRigid3DTransform

[Patrik Brynolfsson]

Hello,

I'm performing 3D rigid registration using the versorRigid3DTransform on a
lot of images and save the resulting versors, rotation matrices, center of
rotation and translations vectors in a text file connected to each image. My
problem is that when I read the rotation matrix from file to perform the
actual transform ITK complains, saying:

"itk::ERROR: VersorRigid3DTransform(031BFC78): Attempting to set a
non-orthogonal rotation matrix"

It is the same matrix that ITK returned when the original registration was
performed. How do I solve this?

Thanks in advance,
-- 
Patrik Brynolfsson
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.itk.org/pipermail/insight-users/attachments/20091127/94dafbe5/attachment.htm>