[vtkusers] Is it possible to clean noise in VTK?

[Iryna Pavlyshak]

>Hello Mathieu,

Yes, u r right, i would like to remove pints which are not part of my structure.  
I think vtkSmoothPolyDataFilter has to be implemented after removing noise points and after triangulation in oder to succeed smoother mesh, isn't it?

best,

Iryna

Hi,
> 
> I am experiencing with it right now, but could you use 
> vtkSmoothPolyDataFilter?
> 
> As any body used it for that purpose? If I am right, you have outlier
> points which are not part of your structured, and would like to remove
> them?
> 
> Mathieu
> 
>>> thanks for advice.
>> 
>> Gaussian filter is really very good,but not in my case, as it reduces 
>> noise in 2D signals, so it works with pixels. I process 3D image. But
>> there is no even any voxels. My data is a set of points(every point has
>> x, y, z coordinates), so it is 3d array. These points form the surface
>> of the image. But some of them are undesirable, which come from air for
>> example, them i want to delete.
>> 
>> 
>> Iryna
>> 
>> 
>> 
>> 
>> 
>> i think u can use vtkImageGaussianSmooth, i have tried it with my 2D
>>> images and it works..(smoothing process can reduce noise in the image
>>> but blur the image also)
>>> 
>>> hope it helps..=p
>>> 
>>> 
>>> Quoting Pierre Barbier de Reuille <pbarbier at ucalgary.ca>:
>>> 
>>>> What do you mean by "cleaning" your data? Even though there is
>>>> probably a way to do it, you have to be more precise about what you
>>>> want to do !
>>>> 
>>>> Pierre
>>>> 
>>>> On 10/23/07, Iryna Pavlyshak <iryna at andrew.cmu.edu> wrote:
>>>>> 
>>>>> Hello!!
>>>>> 
>>>>> My point clouds have to many additional points. Up to now i used 
>>>>> commercial software and cleaned manually my data before
>>>>> processing in VTK. Can i use VTK to do this. If somebody have
>>>>> already faced with the same problem, please let me know if exist
>>>>> any solution in VTK.
>>>>> 
>>>>> Any advice will be helpful,
>>>>> 
>>>>> Iryna
>>>>> 
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>>>>> 
>>>> 
>>>> 
>>>> -- Barbier de Reuille Pierre
>>>> 
>>> 
>>> 
>>> 
>>> 
>> 
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> 
> 
> 
>