[Insight-developers] What is LINEAR_INTERPOLATOR_FIXED?

[Stephen Aylward]

I agree - linear interp opt should be enabled when registration op is enabled.

Even better...how about a USE_OPTIMIZED_METHODS flag that turns on all
of the bells and whistles: transform IO, centered pixels, oriented
images, libxml2, .....?

(Of course, my real preference is to only have USE_REVIEW that
enables/disables all of the experimental code, but others seem to like
cmake variable proliferation :) ).

Stephen

On Mon, Jul 27, 2009 at 5:33 AM, Tom Vercauteren<tom.vercauteren at m4x.org> wrote:
> Hi Luis,
>
> I just realized that the optimized registration framework does not use
> the optimized linear interpolator. Apparently the optimized linear
> interpolator is not used at all. This is because of the following line
> in itkLinearInterpolateImageFunction.h:
>
> #if defined( ITK_USE_OPTIMIZED_REGISTRATION_METHODS ) && defined(
> LINEAR_INTERPOLATOR_FIXED )
> #include "itkOptLinearInterpolateImageFunction.h"
> #else
>
> Any reason for not having
>
> #ifdef ITK_USE_OPTIMIZED_REGISTRATION_METHODS
> #include "itkOptLinearInterpolateImageFunction.h"
> #else
>
> instead? I saw that this modification was done for ITK 3.6
>
>  http://www.itk.org/cgi-bin/viewcvs.cgi/Code/Common/itkLinearInterpolateImageFunction.h?root=Insight&r1=1.36&r2=1.33&sortby=date
>
> but the only commit message is
>
>  ENH: Temporarily disabling the redirection of this interpolator to the
>       OptLinearInterpolateImageFunction class.
>
> Should we proceed to re-enabling this functionality?
>
> Regards,
> Tom
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-- 
Stephen R. Aylward, Ph.D.
Director of Medical Imaging
Kitware, Inc. - North Carolina Office
http://www.kitware.com
stephen.aylward (Skype)
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