[Insight-developers] default template parameters to Chan and Vese filters easier to use and to wrap

[Kishore Mosaliganti]

Hi Gaëtan,

I wanted to add some further comments on the two classes.

The UnconstrainedRegionBasedLevelSetFunctionSharedData class ensures that
when we compute the multiphase levelset update, we consider all levelset
functions for interactions.

The ConstrainedRegionBasedLevelSetFunctionSharedData class considers only
adjacent levelset functions thereby speeding up the iterative process.

In our application, where we have thousands of cells, the latter is very
useful. However, a user may feel the former approach more useful to do other
optimizations or new features.

Kishore

On Wed, Feb 3, 2010 at 11:15 AM, Kishore Mosaliganti
<kishoreraom at gmail.com>wrote:

> Hi Gaëtan,
>
> Your suggestions sound reasonable to us.
>
> We added 2 new tests just now for the
> UnconstrainedRegionBasedLevelSetFunctionSharedData class as well and
> submitted an experimental build to make sure things are fine.
>
>
> Kishore
>
>
> 2010/2/2 Gaëtan Lehmann <gaetan.lehmann at jouy.inra.fr>
>
>
>> Hi,
>>
>> I've changed a bit the Chan and Vese classes to make them easier to use
>> and to wrap in wrapitk.
>> My main concern is the required ScalarChanAndVeseLevelSetFunction typedef.
>>
>> If I make no mistake, it is required to be able to specify either the
>> ConstrainedRegionBasedLevelSetFunctionSharedData or
>> UnconstrainedRegionBasedLevelSetFunctionSharedData. However, it seems that
>> UnconstrainedRegionBasedLevelSetFunctionSharedData is not used anywhere in
>> ITK, so ConstrainedRegionBasedLevelSetFunctionSharedData seems to be the
>> best choice.
>>
>> Based on this observation, I've added some default template parameters to
>> the related classes. The patch is attached to this mail.
>> With that, I should be able to add those classes to wrapitk much easily.
>>
>> Can you please look at it and tell me if it looks reasonable?
>>
>> Regards,
>>
>> Gaëtan
>>
>>
>> --
>> Gaëtan Lehmann
>> Biologie du Développement et de la Reproduction
>> INRA de Jouy-en-Josas (France)
>> tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
>> http://voxel.jouy.inra.fr  http://www.itk.org
>> http://www.mandriva.org  http://www.bepo.fr
>>
>
>
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