[Rtk-users] rtkfdk doesn't work correctly after a recent update

[Yang K Park]

Hi Simon,

 

Sorry for the late response.

 

As you suggested, I’ve tried rtkramp+CUDA with only one projection and it was successfully done for both w/ FFTW and w/o FFTW.

(Two results were exactly same.)

 

Regarding  the CUDA version, I’m using v6.5.

 

Thanks a lot for the help!

 

Yang

 

 

From: simon.rit at gmail.com [mailto:simon.rit at gmail.com] On Behalf Of Simon Rit
Sent: Thursday, November 12, 2015 5:59 PM
To: Yang K Park <theday79 at gmail.com>
Cc: rtk-users at openrtk.org
Subject: Re: [Rtk-users] rtkfdk doesn't work correctly after a recent update

 

Hi,

Ok. Can you try rtkramp with only one projection? Then you shouldn't encounter this regions issue (that should be solved one day but that's a different story). 

Can you also indicate which version of CUDA you're using?

FYI, we use ITK for the FFT of the kernel of the ramp filter and cufft for the FFT of the projections. So if they are not in the same format, you're in trouble and that might be the issue here... The weird part is that I didn't reproduce this problem on linux (with and without FFTW) but it might be a CUDA version difference. I'll give it another try tomorrow when you provide the CUDA version.

Thanks again for reporting the issue,
Simon

 

On Thu, Nov 12, 2015 at 11:39 PM, Yang K Park <theday79 at gmail.com <mailto:theday79 at gmail.com> > wrote:

Hi Simon,

 

Thanks for the advice. The current RTK was compiled with FFTW to use the phase extraction feature from Amsterdam shroud.

 

Regarding your suggestions,

 

1)      rtkramp w/ or w/o CUDA:

(command line: “ rtkramp --path projPath --regexp .*.his --hardware cuda --output Ramp_wCUDA.mha” )

 

Then, I have encountered following error.

“CudaFFTRampImageFilter<..> CudaFFTConvolutionImageFilter assumes that input requested and buffered regions are equal.”

 



 

Without CUDA, it was successfully done.

 

2)      I’ve re-compiled ITK w/o FFTW and built RTK again. rtkfdk worked fine.

-          I’ve also repeated “rtkramp+CUDA” with this rtk version and the error was same as above.

 

In conclusion, my FFTW seems to affect CUDA-based fdk reconstruction only.

But I do need FFTW for the phase extraction. What should I do?

 

Thanks.

 

Yang

 

 

-----Original Message-----
From: simon.rit at gmail.com <mailto:simon.rit at gmail.com>  [mailto:simon.rit at gmail.com <mailto:simon.rit at gmail.com> ] On Behalf Of Simon Rit
Sent: Wednesday, November 11, 2015 4:16 PM
To: Yang K Park <theday79 at gmail.com <mailto:theday79 at gmail.com> >
Cc: rtk-users at openrtk.org <mailto:rtk-users at openrtk.org> 
Subject: Re: [Rtk-users] rtkfdk doesn't work correctly after a recent update

 

Hi,

I didn't manage to reproduce the two problems on linux with the same ITK version.

For point 1, did you copy itkMacro.h by hand? Because I don't see how replacing <itkMacro.h> by "itkMacro.h" can help if itkMacro.h is not in the same folder as rtkCudaUtilities.hcu For point 2, no clue. Do you use FFTW? It looks like a ramp filter issue. Can you try rtkramp --path projPath --regexp .*.his, with and without --hardware cuda? Maybe you can provide your geometry file in case it's a specific geometric issue.

Simon

 

On Wed, Nov 11, 2015 at 7:50 PM, Yang K Park < <mailto:theday79 at gmail.com> theday79 at gmail.com> wrote:

> Hi all,

> 

> 

> 

> I’ve updated rtk with the up-to-date revision and have encountered a 

> couple of problems.

> 

> 

> 

> 1.       Compile error: RTK couldn’t find itkMacro.h while it compiled

> rtkCudaUtilities.hcu. It was solved by a minor fetching:

> 

> #include <itkMacro.h>   à #include "itkMacro.h" in rtkCudaUtilities.hcu

> 

> 

> 

> 2.       Output of rtkfdk with CUDA was not the same as before. It was very

> blurry as seen in the attached image.

> 

> a.       With “FDK with CPU” or “SART with CUDA”, there was no problem.

> 

> 

> 

> 

> 

> I’m using VS2013 with win7, itk4.8.1.

> 

> 

> 

> The command line I used was :

> 

> rtkfdk --geometry 1111.xml --path projPath --verbos --regexp .*.his 

> --output output.mha --spacing 1,1,1 --dimension 400,200,400 --hardware 

> cuda --pad 1 --hann 5 --hannY 5

> 

> 

> 

> Does anyone have any idea about this?

> 

> 

> 

> Thanks.

> 

> 

> 

> Yang

> 

> 

> 

> 

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