[Rtk-users] Reconstruction Volume

[Chao Wu]

Hi,

--lowmem and --subset work for reducing memory footprint for projection
data, and --division for memory usage of reconstruction calculation.
SetProjectionSubsetSize() does not correspond to --division but to --subset
flag.
If you read the code, you will find without --lowmen the reader is updated
before other part of the pipeline being executed; whereas with --lowmen
flag it is updated together with the pipeline, thus is streamed.

Regards,
Chao


2016-04-21 14:55 GMT+02:00 AMJAD N <amjad.n.cet at gmail.com>:

> Hi Simon,
>
> How can i use --lowmem as a code? BTW I am using
> SetProjectionSubsetSize(16) in my code. Is that what you meant by --
> divisions 8? still it doesn't work for 500^3.
>
> I also tried by using itk::StreamingImageFilter to write the reconstructed
> volume. My requirement is 1024^3 volume.
>
> Thanks and Regards,
>
> AMJAD N
>
> On Thu, Apr 21, 2016 at 5:50 PM, Simon Rit <simon.rit at creatis.insa-lyon.fr
> > wrote:
>
>> Try --lowmem and if it still doesn't work, --divisions 8 (the higher this
>> number the less memory).
>> Simon
>>
>> On Thu, Apr 21, 2016 at 1:44 PM, AMJAD N <amjad.n.cet at gmail.com> wrote:
>>
>>> Hi all,
>>>
>>> I tried to run rtkfdk ( ROOSTER sample ) with following command.
>>>
>>> -p . -r .*.his -o fdk.mha -g geometry.rtk --hann 0.5 --pad 1.0
>>> --dimension 500 --spacing 2
>>>
>>> to identify the impact of large reconstructed volume (500^3). Still it
>>> gives memory allocation error.
>>> What might be the issue here?
>>>
>>> Thanks and Regards
>>>
>>> AMJAD N
>>>
>>> _______________________________________________
>>> Rtk-users mailing list
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>>>
>>>
>>
>
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