[Paraview] Interpreting the deformation field

[David E DeMarle]

This is probably a question for the ITK mailing list.

On that list someone will surely be able to explain it in mathematical
terms. To me, the glyphs look like they represent the direction and
magnitude of the transfer function from the values at the pixels in
the input image to those in output image.

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909



On Wed, Feb 1, 2012 at 5:39 AM, Ryosuke Matsuo <ryosukematsuo1 at gmail.com> wrote:
> Hi all,
>
> I just used ITK to perform a simple registration.
> Fixed image contains a white circle at the center and moving image contains
> an ellipse.
> I registered the image using BSplinetransformation and saved the deformation
> field (.mhd).
> I tried to visualize the deformation field using glyph in paraview and
> limitting the number points to 1000.
> I had this result (attached, result.png). How to interprete this result?
> What's the color and arrows means?
>
> Thanks in advance,
> Ryo
>
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