[Insight-users] segmenting delay update

[Robin Gandhi]

By using parameters as below
i was able to drop down the time to 25 seconds but it 
still appears to be a long wait.

 Smoothing filter CurvatureFlowImageFilter
    
 smoothing->SetNumberOfIterations( 5 );
 smoothing->SetTimeStep( 0.25 );
 
 Confidenceconnected filter
 
 confidenceConnected->SetMultiplier( 3.0 );
 confidenceConnected->SetNumberOfIterations( 5 );
 confidenceConnected->SetReplaceValue( 255 );
 confidenceConnected->SetInitialNeighborhoodRadius(2)

Thanks

--Robin.

--- Robin Gandhi <itkmail@yahoo.com> wrote:
> hi everyone,
>    I am semgmenting a brain tumour out of a MRI
> volume
> (256x256x24) using the ConfidenceConnected.cxx
> example
> in the Examples/Segmentation directory.
> 
> These are the parameters that I am using for this
> example, (I have changed the example to work on a 3D
> volume.)
> 
> Smoothing filter CurvatureFlowImageFilter
>    
> smoothing->SetNumberOfIterations( 10 );
> smoothing->SetTimeStep( 0.125 );
> 
> Confidenceconnected filter
> 
> confidenceConnected->SetMultiplier( 2.5 );
> confidenceConnected->SetNumberOfIterations( 5 );
> confidenceConnected->SetReplaceValue( 255 );
> confidenceConnected->SetInitialNeighborhoodRadius( 5
> );
> 
> The results of segmenting the tumor are good but it
> takes around 30 to 40 seconds to do the segmentation
> for a very small tumour volume.
> 
> Can any one suggest me the parameters I can tune 
> to reduce the processing time for this 3D volume.
> 
> thanks in advance
> --Robin.


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