I've been
using HDW for a little while and been able to do most of what I
want, however I'm not able to get the warps quite the way I need
them.
I have some CT data that I cropped to expose the structures of
interest. These images are 80x80x80 mm. (1 voxel = 1 mm).
Differences between structures in the images are on the order of
5mm, so I was hoping that the images would be warped internally
by 5 voxels. However, after warping, voxels in the warped image
are only displaced by about 1mm... so in the end the structures
don't match up between two warped images and are still 4mm apart
from where they should be.
I'm attempting to warp the aorta, so I'm basically trying to
warp a 20mm diameter tube to a 25mm diameter tube. Is this
something that HDW can do? I'm wondering how strong the warping
is, and how I can adjust it? Should I leave the CT images at
256x256x140.
The 2D circle to square warping in Chapter 4 of the human brain
function book is exactly the kind of warping effect I'm looking
for.
