[ITK] [ITK-users] FastMarching and FastMarchingBase

[Arnaud Gelas]

Hi Wei,

FastMarchingBase and its derivatives offer the possibility:

* to provide your own stopping criterion, as you mentioned, i.e. not only
the time of arrival for the front. See FastMarchingStoppingCriterionBase
and its derivatives [1]
* to provide some forbidden points [2], or a binary mask on which the front
would evolve [3]
* to impose for images some topological constraints by the means of
SetTopologyCheck [4], see [5] for details
* to work with images or meshes, e.g. [6]

HTH,
Arnaud

[1]
http://www.itk.org/Doxygen/html/classitk_1_1FastMarchingStoppingCriterionBase.html
[2]
http://www.itk.org/Doxygen/html/classitk_1_1FastMarchingBase.html#a4f20d07dd57b0e5a0016bcf98d1aeffc
[3]
https://github.com/Kitware/ITK/blob/master/Modules/Filtering/FastMarching/test/itkFastMarchingImageFilterRealTest2.cxx
[4]
http://www.itk.org/Doxygen/html/classitk_1_1FastMarchingBase.html#afcd4d899f100ec28d309026e9dc98f00
[5] http://www.insight-journal.org/browse/publication/778
[6]
http://itk.org/ITKExamples/src/Filtering/FastMarching/ComputeGeodesicDistanceOnMesh/Documentation.html
On Friday, March 28, 2014, Wei Liu
<weiliu620 at gmail.com<javascript:_e(%7B%7D,'cvml','weiliu620 at gmail.com');>>
wrote:

> Dear ITK users,
>
> When I look at the ITK FastMarching module I found two version of same
> filter. For example, I found FastMarchingImageFilter
> and FastMarchingImageFilterBase have similar functions, also I
> found FastMarchingUpwindGradientImageFilter
> and FastMarchingUpwindGradientImageFilterBase. I can see some functions are
> different (such as set stop criterion), but is there anything I need to
> know about when I should use which of these filters?
>
> This Git commit [1] seems to say that two implementations co-exists: "
> With this change both frameworks (ITKv3 and refactored one) co-exist,
> classes have different name to avoid conflicts." Not sure if it's related
> to my questions.
>
> Anyone has any thoughts about it? I appreciate your input.
>
> Wei
>
> [1]
> http://itk.org/gitweb?p=ITK.git;a=commit;h=6271a744582c413c7db57456c8ee0149930e5fd9
>
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