[Insight-users] Label Disconnection

[Pietro Nardelli]

Hi Sergio.

thanks for your reply. Unfortunately, my segmentation is really
disconnected. I'm using Slicer to test my region growing and seems
that using a Dilate Label function I can solve this problem. But your
suggestion about the hole filling method can be be very helpful, since
I'm planning to make the module automatic as much as possible!

Thank you very much,

Pietro

2012/5/23 Sergio Vera <sergio.vera at alma3d.com>:
> Pietro,
>
> Is your segmentation really disconnected or is an issue with visualization?
> I mean, marching cubes isovolumes often do not work extremelly well with
> thin structures, and they generate apparently unconnected structures while
> in the binary 27-connected neighborhood everithing is connected. This is
> specially true on thin or small regions.
>
> If objects are really unconnected some options are hole filling methods
> (morphologycal closing) or iterativeVotingHoleFill filters
>
> Regards
>
> On Wed, May 23, 2012 at 11:41 AM, Pietro Nardelli <pie.nardelli at gmail.com>
> wrote:
>>
>> Hi everybody,
>>
>> I have a question: does anyone know how could fix disconnected label?
>> I explain: I'm developing a module to segment the airway of the lung
>> starting from a DICOM dataset, and in order to do so I'm using a
>> threshold connected method. Now, since this method use a
>> 26-neighborhood region growing, I get some disconnected pieces of
>> branches (I've attached a picture of what I mean). Does something
>> exist to create a piece of label in order to fix these gaps?
>>
>>
>> Thanks so much,
>>
>> Pietro
>>
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>
>
>
> --
> Sergio Vera
>
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