[ITK] [ITK-users] Fwd: 3D registration with level set motion

Samuel Gerber samuel.gerber at kitware.com
Thu Aug 3 11:46:43 EDT 2017


That looks like there should be enough overlap.

Do you get the exception while the registration is running? In that case it
might be that during the registration the transform pushes the images away
from each other until there is not enough overlap. What kind of optimizer
are you using? You might need to adjust the step size of your optimizer.

-Sam


On Thu, Aug 3, 2017 at 11:33 AM, CocoM <cgo_2113 at hotmail.com> wrote:

> Hi Sam,
>
> Thanks a lot for your answer. I think I understand what you mean, and I
> checked the spacing, origin and direction of my images. The only difference
> is the origin in z. In one case it's -1177, in the other -1188. But the
> origins don't need to be the same to get an overlap between images physical
> spaces right? With my data, I don't understand why I wouldn't get one ; the
> spacings are [0.781 0.781 1], the origins [-200 -200 -1177 or -1188] and
> the
> directions are identity matrix. Why wouldn't it work?
>
> Thanks,
> Marie
>
>
>
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-- 
Samuel Gerber
R&D Engineer
Kitware, Inc.
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