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

[motes motes]

Thanks for clarifying!

On Mon, Jun 22, 2009 at 12:57 AM, Luis Ibanez <luis.ibanez at kitware.com>wrote:

> 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
>
>
>
> ---------------------------------------------------------------------------------------------------------
> 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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