[vtkusers] internal radiotherapy kernel

[Cory Quammen]

Richard,

If your kernel is spatially invariant, you may want to look into
vtkFastSplatter [1].

Thanks,
Cory

[1]
http://www.vtk.org/doc/nightly/html/classvtkFastSplatter.html#a921b3de4b2b70437aa7273342fedfb74

On Thu, Oct 15, 2015 at 8:23 AM, mbcx9rb9 <richard.j.brown at live.co.uk>
wrote:

> Hi all,
>
> Im working on internal radiotherapy and, currently, I calculate my absorbed
> dose information (DVH etc.) by adding a kernel (vtkImageData) at each
> treatment point to a large dose grid (vtkImageData) that covers the whole
> treatment region. Then I pass by vtkImageAccumulate to do the dosimetry.
>
> Is this the best way to do it? Because if the majority receives no absorbed
> dose, it seems wasteful (in terms of memory) to have those voxels at the
> same resolution as in my kernel, where I have a very steep gradient of
> absorbed dose.
>
> Are there any other approaches? Would it, for example, be possible to store
> my kernel as a vtkUnstructuredGrid and still pass it by vtkImageAccumulate
> and get the same results?
>
> Thanks for any responses in advance.
>
>
>
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-- 
Cory Quammen
R&D Engineer
Kitware, Inc.
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