[Insight-users] Vector image interpolation

[Rômulo Pinho]

Hi, Brad,
Thanks for the tips...

I don't have a snippet at hand now, but I basically have two itk::Image< 
itk::Vector< type, dim >, dim > which I wish to interpolate at a given 
distance. The problem with InterpolateImageFilter is that it expects an 
interpolator which derives from InterpolateImageFunction, whereas all 
vector interpolators derive from VectorInterpolateFunction...

The best I can think of is to extract the components of my vector images 
into scalar images (I think there's an adaptor for that, right?), then 
use the InterpolateImageFilter on each of them, and finally reassemble 
the resulting components into a new vector image... It's not very 
efficient, but will do for the moment... Is it what you had in mind?

I guess that, ideally, I'd have to implement my own 
VectorInterpolateImageFilter...

Regards,
Rômulo

On 23/01/2013 15:49, Bradley Lowekamp wrote:
> What is your specific image type and interpolator you are trying to use?
>
> Do you have a small code snippet that you are trying to get to work 
> with the filter?
>
> I think that the InterpolateImageFilter should ( not that is does ) 
> work with either image type. It likely just needs a little tweaking. 
> So you you provide an example program, I hopefully can take a look to 
> see if there are some little tweaks that are needed can be easily done.
>
> Brad
>
> On Jan 23, 2013, at 6:55 AM, Rômulo Pinho 
> <romulo.pinho at lyon.unicancer.fr 
> <mailto:romulo.pinho at lyon.unicancer.fr>> wrote:
>
>> Hello, everyone,
>>
>> Is there an equivalent of itk::InterpolateImageFilter for vector images?
>>
>> Thanks in advance!
>> Regards,
>>
>> Rômulo
>> -- 
>> Rômulo PINHO
>> Post-doc Assistant Researcher
>> Centre Léon Bérard
>> 28, rue Laennec 69373
>> Lyon, France
>> +33 (0)4 78 78 51 50
>> romulo.pinho at lyon.unicancer.fr  
>> http://www.creatis.insa-lyon.fr/rio/RomuloPinho
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