[Insight-users] Don't understand Figure 8.4 ItkSoftwareGuide

[Luis Ibanez]

Hi Motes,

0) No you are not missing the point.


                          The caption is missing a comma.


and maybe a couple of parenthesis   :-)


There are three images.
The caption refer in order to the three images.

A) Left     : = "Mapped Moving image"
B) Center : = "Difference between Moving Image and Fixed image before
registration"
C) Right   : = "Difference between Moving image and Fixed image after
registration"


A better caption could have been:

"Left: Moving image mapped into the coordinate system of the
Fixed image using the transform resulting from the registration.
Center: Difference between fixed image and moving image before
registration, Right: Difference between the moving image mapped
into the fixed image coordinate system after registration and the
fixed image"



Regards,


       Luis


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On Sun, Jun 21, 2009 at 6:34 PM, motes motes <mort.motes at gmail.com> wrote:

> Figure 8.4 in the ItkSoftwareGuide contains three images of brain slices.
> It has the following description:
>
> "Figure 8.4: Mapped moving image and its difference with the fixed image
> before and after registration"
>
> 1) As I understand the leftmost image is the moving image transformed into
> the fixed image space.
>
> 2) The middle image is the difference image between the original fixed
> image and the original moving image. And has nothing to do with the mapped
> moving image.
>
> 3) The rightmost image is the difference between the transformed moving
> image (the leftmost image) and the original fixed image.
>
> I don't think it makes sense to call the middle image the difference
> between the mapped moving image and the fixed image, since that would be the
> rightmost image. And further I don't understand how it makes sense to talk
> about the mapped moving image before the registration.  Or am I totally
> missing the point here?
>
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