[vtkusers] Orientation in resliced image

[Bartosz Wiklak]

Once again I reply to myself :)

It's simple, one has to use method given by David Clunie:
http://www.dclunie.com/medical-image-faq/html/part2.html#DICOMOrientation
but instead of giving direction cosines from dicom data one has to
compute new direction cosines computing cosines between old direction
cosines and new axes (taken from resliceAxes).

If anybody would like some details please contact me.

Sorry for rubbishing group.

Bartosz Wiklak


On Wed, Dec 3, 2008 at 9:38 AM, Bartosz Wiklak <bwiklak at gmail.com> wrote:
> Hi,
>
> I use vtkImageReslice to make MPR visualization.
> To define reslice axes I build matrix and push it to SetResliceAxes.
>
> I have problems in defining new (resliced) image orientation ( Head,
> Left, Anterior, ...).
> I tried to use transformation matrix3x3  from ResliceAxes to original
> direction cosines from DICOM, and then determine orientation using
> standard methods, but this is not good.
>
> I wouldn't like to use any other libs then VTK and GDCM ( f.e. ITK
> where some orientation filters exist ).
>
> Can you give me some advise?
>
> Bartosz Wiklak
>