[Insight-developers] [Insight-registration] vector transformation / reorientation

[Luis Ibanez]

On Sat, Nov 20, 2010 at 7:00 PM, Matthew McCormick (thewtex) <
matt at mmmccormick.com> wrote:

> >
> > (b) Estimating the Rotational and Stress component of the
> >       deformation field at that pixel location and use it to correct
> >       the Vector (or covariant vector) accordingly.  This is
> >       essentially based on the Jacobian matrix of the deformation
> >       field, estimated at the location of the pixel.
> >
>
> I have a StrainImageFilter that calculates the strain tensor from a
> deformation field if it would be of any help.  I assume what is meant
> by the 'Rotational and Stress component' are the same as the angles to
> the principle strains and the principle strains.  I intend on
> submitting this filter to the Insight Journal in the next week or two
> after I get another paper out and the following patch gets merged:
>
>
> http://review.source.kitware.com/#q,status:open+project:ITK+branch:master+topic:BUG0010725_VTKTensors3,n,z
>
> Matt
>


Excellent !

Yes,
that what I meant by the stress component.

Do you see a way of deriving as well
the rotational component of the Jacobian  ?


     Luis
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