[Vv] Transformation matrix ?!

[David Sarrut]

Hello Anton,

as Vivien found in the sources, Simon has indeed implemented some technique
which will allow to take orientation (and any affine transformation) into
account in vv.

However, it is currently disabled due to robustness reason (and potential
memory leak). We plan to include it near future. When Simon will be back
from his trip, we will discuss about that and may contact you if you will to
participate with us to this feature.

sincerely,
David

On Tue, Feb 8, 2011 at 18:09, Vivien Delmon <
vivien.delmon at creatis.insa-lyon.fr> wrote:

> On 02/07/2011 10:27 AM, a.mans at nki.nl wrote:
>
>> Dear vv team,
>>
>> another small question:
>> does vv correctly use the 'global' transformation information in the image
>> header?
>>
>> My case: MR and CT scans have different orientations, which is compensated
>> for by the transformation matrix in the .mhd image header.
>> CT: TransformMatrix = 1 0 0 0 1 0 0 0 1
>> MR: TransformMatrix = 0 1 0 0 0 -1 -1 0 0
>>
>> In FSLview the images are correctly aligned. In vv, however, it seems that
>> the transformation is not applied. Also when I modify the header file, vv
>> still shows the same orientations.
>>
>> Regards, Anton
>>
>
> VV doesn't take into account the direction part of the image when it
> converts an ITK image to a VTK image.
>
> The problem should be fixed in these files :
>
> common/vvFromITK.h
> common/vvImage.txx
>
> I am not sure I will have time to correct this bug soon.
>
> Kind Regards,
>
>
> --
> Vivien Delmon
> PhD student at CREATIS, Lyon
> Supported by ANRT and ELEKTA
> http://www.creatis.insa-lyon.fr/rio
>
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>



-- 
David Sarrut, Phd
Chargé de recherche CNRS
Laboratoire CREATIS, UMR CNRS 5220, Inserm U 1044
Centre de lutte contre le cancer Léon Bérard
28 rue Laënnec, 69373 Lyon cedex 08
Tel : 04 78 78 51 51 / 06 74 72 05 42
http://www.creatis.insa-lyon.fr/rio
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