[IGSTK-Users] MR image view. Navigator example base.

[Patrick Cheng]

Hi David,

The reason why the image slice are not properly aligned is probably 
because the original MR acquisition plane is not strictly orthogonal.

In the Navigator example, we use the "direction cosine (acquisition 
direction matrix)" to position the image actor in the view window. The 
camera view direction is always set to be orthogonal (following the 
radiology convention), which will result in the problems you reported 
here. Now the camera is not looking perpendicular to the image plane.

You will either need to modify the way direction cosine is being handled 
in ImageSpatialObject or camera angle in View2D class to make it work 
for your data.

Hope this helps,

Patrick

On 4/27/2010 12:21 AM, david at artresnet.com wrote:
> Hi.
>
> I modify Navigator Example to load MR images, and i have a doubt.
>
> The MR image i load has a slice orientation and the crosshair are not
> aligned with image planes slice, i get this result ( See image) .
>
> The cross hair are aligned with axial, sagittal and coronal world
> reference? and The image planes slice are aligned with axial sagittal
> and coronal image orientation reference? The when call to get axial
> image slice get the slice from image position/orientation reference? how
> i can get world reference views of image slice .
>
> Thanks, sorry for my poor english.
>
> Regards,
> David Millan (Damiles)
>
>
>
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