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

Mathieu Coursolle mcoursolle at rogue-research.com
Wed Oct 24 14:13:08 EDT 2007


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
>>>> 
>>>> _______________________________________________ This is the private
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>>>> 
>>> 
>>> 
>>> -- Barbier de Reuille Pierre
>>> 
>> 
>> 
>> 
>> 
>
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