[Insight-users] Optimizer change Affine Bspline

[Jon Haitz Legarreta]

Dear Emma,
I guess you should be able to do it if you disconnect the pipeline, i.e.,
if you update the upstream pipeline, have the result stored to some
variable and then you apply as many optimizers as you wish, making the
variable contents the input for your many optimizers.

As for the performance, I cannot help much. Sorry.

HTH,
JON HAITZ



On 27 September 2013 00:45, Emma Saunders <emmasaunders123 at gmail.com> wrote:

> Hi list
>
> I am performing registration using a bulk Affine transform followed by
> Bspline registration, (not v4)
>
> I would like to use a regular gradient descent optimizer for the Affine
> and a LBFG optimizer for the Bspline (hoping this increases speed).
>
> Is it therefore possible to just use another call to
> registration->Optimizer, using a different optimizer for the same
> registration.  Initial attempts do not work?  Is this possible or do I have
> to use two separate registrations?
>
> Any further advice on increased speed wrt metric type, optimizer for
> dynamic mri data is appreciated.
>
> Thanks
>
> Emma
>
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