[ITK-users] Multi label image interpolation

[Bradley Lowekamp]

http://www.itk.org/Doxygen/html/classitk_1_1LabelImageGaussianInterpolateImageFunction.html

> On May 22, 2014, at 4:38 AM, "Gouttard, Sylvain" <Sylvain.Gouttard at bioclinica.com> wrote:
> 
> Hi,
>  
> I am working with a multiple label segmentation image which has at least 3 labels.
> I would be interested in applying a transformation computed from a registration on this multiple label image.
> Even though the transformation is fairly smoothed, when i use the nearest neighbor interpolation, the deformed image is pretty noisy mostly because of the interpolation type i think.
>  
> Would there be a solution (algorithm, itk filter, general method…) that would do an interpolation on a multiple label image while keeping the label numbers and performing better than nearest neighbor.
> Ideally i would like something similar to the sinc interpolation in grey level images.
>  
> For example: when i have a region with label 3 close to a region with label 1, i want to make sure the deformed image will keep these labels 1 and 3 and won't do any average or interpolation creating new labels like label 2 for example.
>  
> Thanks for your help,
> Sylvain
> 
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