[Insight-users] dense interpolation of sparse vector fields

[Nick Tustison]

Hi,

You can use the filter

http://www.itk.org/Doxygen/html/classitk_1_1BSplineScatteredDataPointSetToImageFilter.html

for irregularly spaced data on a finite domain.  For sparse data 
on a regular grid you can use the wrapper class

http://www.itk.org/Doxygen/html/classitk_1_1DisplacementFieldToBSplineImageFilter.html

Nick





On Jan 25, 2013, at 8:56 PM, Siddharth Srivastava <siddys at gmail.com> wrote:

> Dear ITK users,
>            I have some sparsely distributed vectors on a regular grid. Are there
> any methods available in ITK using which I can obtain a dense interpolation
> of these vectors over the entire grid? 
>             Alternatively, are there any published methods which I can implement using the 
> filters in ITK to do this? 
>              It will be fantastic if irregular grids are covered too, but it is not necessary 
> for now. 
>              Thanks a lot for your help,
>               Sid.
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