[Rtk-users] 4DROOSTERReconstruction example

[Joel Beaudry]

Hi Cyril,

Works like a charm, thanks! I tried it on some other datasets and it seems
to be working. I need to increase the resolution and play around with the
parameters now.

I haven't had time to test it too much, but I do get an error when
attempting to reconstruct with different dimensions. I'm using Cuda, and
haven't tried it with just cpu reconstruction yet.

i.e.)
--dimension 160 --spacing 2 -> works
--dimension 512,64,512 --spacing 0.88,2.5,0.88 --> throws "In
AverageOutOfROIImageFilter: information of ROI image does not match input
image"

I'll be able to test some other things later and list more details.

Thanks,
Joel



On Mon, Sep 28, 2015 at 4:48 AM, Cyril Mory <cyril.mory at uclouvain.be> wrote:

> Hi Joel,
>
> I have fixed the wiki example (command line parameters AND data). Can you
> restart it from scratch and let me know if you still have problems ?
>
> Roughly, the problems were the following:
> - the "mm_50.mha" motion mask file was not aligned with the CBCT
> coordinates
> - the regularization parameters (gamma space and gamma time) were way too
> high. The regularization with a high gamma-time caused frames to be
> identical, while it should only discourage variations
>
> I hope it works, now. If it doesn't work for you, please keep asking
> Cyril
>
>
> On 09/28/2015 09:52 AM, Cyril Mory wrote:
>
> Hi Joel,
>
> I have just tried to reproduce the wiki example, and indeed, there are
> several mistakes in it. I am working on correcting them. I'll keep you
> posted.
>
> Cyril
>
>
> On 09/26/2015 05:32 AM, Joel Beaudry wrote:
>
> Hi RTK-users,
>
> I'm unable to reproduce the images from the 4DROOSTERReconstruction
> example. The 5 frames should show some differences pertaining to patient
> motion but the ones that I'm producing are identical, so no motion is
> visible.
>
> Has anyone been able to follow the example and the provided dataset to
> create a 4D image?
>
> Thanks,
> Joel
>
>
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