[Insight-users] 3D Fourier Descriptor in itk

[Samaneh Kazemi]

Hi Matt,

Thank you for your response. Would you please let me know how can I measure
the bias of Fourier spectrum?

Thanks,
Samaneh




On Tue, Aug 20, 2013 at 2:36 PM, Matt McCormick
<matt.mccormick at kitware.com>wrote:

> Hi Samaneh,
>
> Here is an example that shows how to compute the spectral density of a 3D
> image:
>
>
> http://itk.org/ITKExamples/src/Filtering/FFT/ComputeImageSpectralDensity/Documentation.html
>
> HTH,
> Matt
>
> On Wed, Aug 14, 2013 at 4:25 PM, Samaneh Kazemi
> <samaneh.kazemi at gmail.com> wrote:
> > Dear ITK users,
> >
> > I want to measure the smoothness of one curve. Mr. Luis Ibanez gave an
> idea
> > that the smoothness of the curve can be evaluated by analyzing its
> spectrum
> > in the Fourier domain. So, I want to use Fourier descriptors of a volume
> (3D
> > points) to obtain magnitude of each point. I only found the example
> > FourierDescriptors1.cxx, under:  "Insight/Examples/Numerics " but I am
> > looking for 3D Fourier Descriptors acting on voxels. Would you please
> send
> > me an example of 3D Fourier Descriptors code.
> >
> > Thanks for your time and help.
> > Samaneh
> >
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