[Insight-developers] RE: Euler3DTransform and registration

[Lydia Ng]

I sent this out yesterday but it bounced ...

> -----Original Message-----
> From: Lydia Ng
> Sent: Wednesday, July 30, 2003 7:12 PM
> To: 'insight-developers at itk . org'
> Subject: FW: Euler3DTransform and registration
>=20
>=20
> For those interested in registration:
>=20
> I am been looking at some of the problems the users are having with
> registration when they plug particular components together.
>=20
> I tried using the Euler3DTransform for the first time and I also ran
into
> trouble. The problem was that Euler3DTransform was not computing the
> Jacobian correctly, in particular
> - the first half of the Jacobian was transposed
> - the computation only works for the case when ComputeZYX is true
> - the Euler3DTransformTest only exercised the Jacobian code but does
not
> test the results.
>=20
> I made fixes to the above - hopefully this would solve some of the
> problems users have been having.
>=20
> - Lydia