Thanks for the link, Christian.
The whole lecture is really great. However, I did't find quite what I expected.
I'll try to put what I am looking for in another words.
I work on a quite difficult registration problem and I use FLIRT results as a
refence. My implementation platform is ITK ( http://www.itk.org ) and my aim is
to replicate, at the begining, FLIRT results. ITK implements three types of
transformation for 3D registration: AffineTransform (DOF=12),
Quaternian3DTransform (DOF=7) and Versor3DRigidTransform (DOF=6).
So I was wondering what transforms FLIRT uses.
Cheers,
Martin
Quoting "Christian F. Beckmann" <[log in to unmask]>:
> Martin,
>
> the FSL course talk on registration etc covers this, see
> http://www.fmrib.ox.ac.uk/fslcourse/lectures/flirt_fugue/s_1030xfm.htm
>
> cheers
> christian
>
>
>
> On 3 Dec 2004, at 14:13, Martin Kavec wrote:
>
> > Hi.
> >
> > I am trying to figure out, what transform is optimized with
> different
> > DOFs in 3D registration. In DOF=12, I would guess, it is Affine
> > transform.
> > I am particularly interested in DOF=6, 7. I briefly looked at the
> > FLIRT source code, but it was probably too brief. Is it a Quaternion
> in
> > DOF=7?
> >
> > Thanks for explanation.
> >
> > Martin
> >
> >
> --
> Christian F. Beckmann
> Oxford University Centre for Functional
> Magnetic Resonance Imaging of the Brain,
> John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
> Email: [log in to unmask] -
> http://www.fmrib.ox.ac.uk/~beckmann/
> Phone: +44(0)1865 222782 Fax: +44(0)1865 222717
>
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