[Insight-users] File format for ICP

[Josu Maiora]

---------- Forwarded message ----------
From: Josu Maiora <jmaiora at gmail.com>
Date: 2009/1/19
Subject: Fwd: [Insight-users] File format for ICP
To: insight-users at itk.org


Hi,
I got the input files with
BinaryMask3DMeshSource<http://public.kitware.com/Insight/Doxygen/html/classitk_1_1BinaryMask3DMeshSource.html>
filter
but the registration with ICP example fails -after 12 hours it was still
running- . The files have 2000 nodes each. Is it a two large mesh? How could
I tune the ICP algorithm?



Thanks,

Josu



2009/1/2 Luis Ibanez <luis.ibanez at kitware.com>

Hi Josu,
>
> If you already have segmented the spinal canal,
> then you could use the filter
>
>
> http://public.kitware.com/Insight/Doxygen/html/classitk_1_1BinaryMask3DMeshSource.html
>
> to extract the surface around each one  of the segmented structures,
> and then you could use the output of each filter as inputs to the
> ICP examples in
>
>     Insight/Examples/Patented/
>
> PS. Please note that the ICP patent has already expired.
>
> Since the spinal canal is a long structure, I would expect it to
> register easily using ICP.... as long as your segmentation have
> not missed big portions of each.
>
>
> Note also that, given the curvature of the spine, you may have
> to use Transforms that allow for deformations, (e.g. beyond
> the Rigid and Affinee 3D) transform.
>
>
>      Regards,
>
>
>           Luis
>
>
> ------------------------------------------------------------------
>
> On Fri, Jan 2, 2009 at 10:18 AM, Josu Maiora <jmaiora at gmail.com> wrote:
>
>> Hello Luis,
>> I am trying to register segmented spinal canals. Could you give me an
>> aproach to do that?
>>
>> Thanks,
>> Josu
>>
>> 2008/12/31 Luis Ibanez <luis.ibanez at kitware.com>
>>
>>
>>> Hi Josu,
>>>
>>> ICP requires two sets of points as input.
>>>
>>> You seem to have two images.
>>>
>>> Therefore, in order to use ICP you must first extract from each of your
>>> images
>>> a set of points representing the structure(s) that you want to register.
>>>
>>> What anatomical structures  are you trying to register ?
>>>
>>>   Please let us know,
>>>
>>>
>>>         Thanks
>>>
>>>
>>>                 Luis
>>>
>>>
>>> ---------------------------------------------------------------------
>>> On Wed, Dec 31, 2008 at 6:01 AM, Josu Maiora <jmaiora at gmail.com> wrote:
>>>
>>>> Hi all,
>>>> I am trying to use the ICP registration with two 3D segmented images. I
>>>> have them in mhd or vtk format (I got them with SNAP) and I need to get a
>>>> point set in a txt file to use that registration. Is it right?
>>>>
>>>> And then, how could I get a point set with a reasonable number of
>>>> points?
>>>>
>>>> Thanks,
>>>>
>>>> Josu
>>>>
>>>>
>>>> **************************************************************************
>>>> Josu Maiora
>>>> University of the Basque Country
>>>>
>>>> **************************************************************************
>>>>
>>>> _______________________________________________
>>>> Insight-users mailing list
>>>> Insight-users at itk.org
>>>> http://www.itk.org/mailman/listinfo/insight-users
>>>>
>>>>
>>>
>>
>
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