[Insight-users] medial curve image filter

[Xavier Mellado Esteban]

    Hi,

    Go to:

    http://www.midasjournal.org/browse/publication/165

    and download the file MedialCurve-IJCv20.zip

                   Regards,
                             Xavi


"Ferreira, Filipa I" <F.Ferreira at kingston.ac.uk> ha escrito:

>
> Hi,
>
>
> Does anyone have access to ITK MedialCurveImageFilter.cpp ?
>
>
>
> Regards,
> Filipa
>
>
> -----Original Message-----
> From: insight-users-bounces at itk.org   
> [mailto:insight-users-bounces at itk.org] On Behalf Of Erik Tuerke
> Sent: 21 October 2010 09:35
> To: insight-users at itk.org
> Subject: [Insight-users] Registration of one sub-brain to full-brain
>
> Hi!
>
> I want to register one hemisphere (actually 30 slices of 0.75 mm) to a
> fullbrain scan (30 slices of 0.75mm, but shifted to superior for about 5
> mm) . Currently i am using a MattesMutualInformationImageToImage metric,
> a RegularStepGradientDescentOptimizer and a VersorRigid3DTransform.
>
> Prior to the registration the hemisphere is roughly aligned to the
> fullbrain (only needs translation of few mm and little rotation). If i
> start the registration the optimizer finishes with a rotation of about
> 90 deg x and y. I also tried a VersorRigid3DOptimizer and a
> NormalizedCorrelation with almost the same result.
>
> The scalefactors of my optimizer are:
>                 optimizerScaleRegularStepGradient[0] = 1.0;
>                 optimizerScaleRegularStepGradient[1] = 1.0;
>                 optimizerScaleRegularStepGradient[2] = 1.0;
>                 optimizerScaleRegularStepGradient[3] = 1.0/1000.0;
>                 optimizerScaleRegularStepGradient[4] = 1.0/1000.0;
>                 optimizerScaleRegularStepGradient[5] = 1.0/1000.0;
>
> I guess the itk examples are proposing the same values.
> Is there any trick to apply such a sub-brain registration to a
> full-brain registration. The worrying thing is that SPM gets it right :-(
>
> Thanks and best regards!!
>
> --
> Erik Tuerke
> Department of Neurophysics
> Max-Planck-Institute for Human Cognitive and Brain Sciences
> Stephanstrasse 1A
> 04103 Leipzig
> Germany
> Tel: +49 341 99 40-2440
> Email: tuerke at cbs.mpg.de
> www.cbs.mpg.de
>
>
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__________________________________________________________

Xavier Mellado Esteban

Grupo de Tecnologías de las Comunicaciones (GTC).
Instituto de Investigación en Ingeniería de Aragón (I3A).

Edificio Ada Byron. Laboratorio L3.07
Dpto. Ingeniería Electrónica y Comunicaciones.
Centro Politécnico Superior (CPS).
Campus Río Ebro (Actur). Universidad de Zaragoza.
C/ María de Luna, 1
50018 Zaragoza (Spain)

Teléfono: 976762704
E-Mail: xme at unizar.es
MSN Messenger: xme at unizar.es
__________________________________________________________