[Insight-users] Question about segmentation techniques in ITK Snap

[Luis Ibanez]

Hi Jurgen,

We don't manage the SNAP web site, so unfortunately I won't be
able to help locating this particular report.

My suggestion will be to send email to the SNAP users mailing list.

You can subscribe at:

         http://www.itksnap.org/forum.php

You could also contact Dr. Yushkevich:
http://picsl.upenn.edu/people_Yushkevich.aspx


    Regards,


        Luis



---------------------
Vries, J de wrote:
> Hi Luis,
> 
> Thanks for the quick response and the information you gave!
> I do have one question left: i looked at 
> http://www.itksnap.org/manual.php and saw the article '2004 Technical 
> Report' when i wanted to view the article the link i clicked was not 
> working. Do you know if there is another source were i could get that 
> article from?
> 
> Thank you very much for your effort!
> 
> Regards,
> Jurgen
> 
> 
> -----Oorspronkelijk bericht-----
> Van: Luis Ibanez [mailto:luis.ibanez at kitware.com]
> Verzonden: wo 14-5-2008 15:36
> Aan: Vries, J de
> CC: insight-users at itk.org
> Onderwerp: Re: [Insight-users] Question about segmentation techniques in 
> ITK Snap
> 
> 
> Hi Jurgen,
> 
> 
> You may find useful to read the SNAP tutorial at:
> 
> 
>     http://www.itksnap.org/docs/viewtutorial.php
> 
> and to look at the related publications:
> 
>           http://www.itksnap.org/manual.php
> 
> 
> Note that Level Sets are (arguably) a region growth method.
> 
> 
> Usually when we talk about region growing we are referring
> to methods such as ConfidenceConnected or ThresholdConnected.
> 
> 
> A "grep" inspection of the SNAP source code reveals the
> following:
> 
> 
>      a) ConfidenceConnected is not available
>      b) ConnectedThreshold is not available
> 
> 
> A more specific grep brings the following:
> 
> $ grep -ir LevelSet * | grep include | grep "\<itk"
> Logic/LevelSet/SNAPLevelSetDriver.cxx:#include
> "itkNarrowBandLevelSetImageFilter.h"
> Logic/LevelSet/SNAPLevelSetDriver.cxx:#include
> "itkParallelSparseFieldLevelSetImageFilter.h"
> Logic/LevelSet/SNAPLevelSetDriver.txx:#include
> "itkNarrowBandLevelSetImageFilter.h"
> Logic/LevelSet/SNAPLevelSetDriver.txx:#include
> "itkParallelSparseFieldLevelSetImageFilter.h"
> Logic/LevelSet/SNAPLevelSetFunction.h://#include "itkLevelSetFunction.h"
> Logic/LevelSet/SNAPLevelSetFunction.h:#include
> "itkSegmentationLevelSetFunction.h"
> Logic/LevelSet/SNAPLevelSetStopAndGoFilter.h:#include
> "itkSparseFieldLevelSetImageFilter.h"
> Testing/TestCompareLevelSets.cxx:#include
> "itkSparseFieldLevelSetImageFilter.h"
> Testing/TestCompareLevelSets.cxx:#include
> "itkParallelSparseFieldLevelSetImageFilter.h"
> Testing/TestCompareLevelSets.cxx:#include
> "itkNarrowBandLevelSetImageFilter.h"
> UserInterface/BasicComponents/SnakeParametersPreviewPipeline.cxx:#include
> "itkParallelSparseFieldLevelSetImageFilter.h"
> UserInterface/BasicComponents/SnakeParametersPreviewPipeline.cxx:#include
> "itkNarrowBandLevelSetImageFilter.h"
> 
> 
> To summarize, the methods are implemented directly from
> the base LevelSet filters in ITK.
> 
> 
> Note that it doesn't mean that methods such as Geodesic active contours
> are not available. What it means is that they are implemented as special
> cases of the generic Level Set equation.
> 
> 
> The run-time help of SNAP will actually show you what terms of the
> equation you are setting in every case.
> 
> 
> 
>    Regards,
> 
> 
>      Luis
> 
> 
> 
> ------------------
> Vries, J de wrote:
>  > Hello ITK experts,
>  >
>  > I have a question regarding the segmentation techniques used in ITK SNAP:
>  > - which techniques are used? Region growing and level set?
>  > - if level set is used in ITK Snap, which techniques (like fast
>  > marching, Geodesic Active Contours Segmentation, etc) exactly are used?
>  >
>  > Thanks in advance for any information!
>  >
>  > Regards,
>  > Jurgen
>  >
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> geadresseerde(n). Anderen dan de geadresseerde(n) mogen geen gebruik 
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> verspreiden of vermenigvuldigen. Het UMCG kan niet aansprakelijk gesteld 
> worden voor een incomplete aankomst of vertraging van dit verzonden bericht.
> 
> The contents of this message are confidential and only intended for the 
> eyes of the addressee(s). Others than the addressee(s) are not allowed 
> to use this message, to make it public or to distribute or multiply this 
> message in any way. The UMCG cannot be held responsible for incomplete 
> reception or delay of this transferred message.
>