[Insight-users] Segmentation of 3D object with Level sets

[Ryma]

Hi all,
Can i choose any geometric shape to evolve through the initial object when
using Level Set?
 Ryma,     






Ryma wrote:
> 
> Hi Arnaud,
> When i compiled ITK, i disabled  BUILD_EXAMPLES and BUILD_TESTING because
> i found this in all installation guides and tutorials. 
> is this right in this case?
> Ryma,
> 
> 
> Arnaud Gelas-2 wrote:
>> 
>> Ryma,
>> 
>> The level sets framework may help you in this task.
>> 
>> However, the choice of the "terms" to be used and / or "functional" to 
>> be minimized depends on your image.
>> It is really difficult to tell you which method would work for your 
>> image with this little information and without the images.
>> 
>> First, I would recommend you having a look at the examples based on
>> ITKv3:
>> 
>>      Examples/Segmentation/GeodesicActiveContourImageFilter.cxx
>>      Examples/Segmentation/ThresholdSegmentationLevelSetImageFilter.cxx
>>      Examples/Segmentation/LaplacianSegmentationLevelSetImageFilter.cxx
>> 
>> and
>> 
>>      
>> Modules/Segmentation/LevelSetsv4Visualization/test/vtkVisualize2DCellsLevelSetTest.cxx
>> 
>> You can run these tests and examples from your build directory if you 
>> have enabled BUILD_EXAMPLES and BUILD_TESTING by running
>> 
>>      ctest -R ${TheNameOfTheExample|Test}
>> 
>> Best,
>> Arnaud
>> 
>> On 02/14/2012 11:57 AM, Ryma wrote:
>>> Hi Arnaud,
>>> Thanks for reply, what i'm trying to do exactly is extracting a part
>>> from a
>>> 3D image and want to see the surface evolving.
>>> Ryma
>>>
>>>
>>> Arnaud Gelas-2 wrote:
>>>> Hi Ryma,
>>>>
>>>> Can you provide more details, please?
>>>>
>>>> Are you trying to segment meshes based on their geometry, additional
>>>> data?
>>>>
>>>> or
>>>>
>>>> Are you trying to extract some shape of interest in a 3D image and you
>>>> would like to see the surface evolves through the iteration?
>>>>
>>>> Thanks,
>>>> Arnaud
>>>>
>>>> On 02/14/2012 11:48 AM, Ryma wrote:
>>>>> Hi itkUsers,
>>>>> I'm beginner to ITK, i'm working on 3D meshes segmentation. What i'm
>>>>> trying
>>>>> to do is using the method of Level Sets for segmentation. My meshes
>>>>> are
>>>>> .OBJ
>>>>> files, it's possible to use the classes of ITK to see a surface
>>>>> evolving?
>>>>> Ryma
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>> 
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> 

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