Memory allocation problem ?

[Salim Kanoun]

Hello everybody,

i'm a resident in nuclear medicine (in France), i'm trying to run Fiji with
Beth Israel plugin (a viewer for PET/CT)

First of all i would like to say thank you for all developers working on
ImageJ/Fiji and theirs plugins providing great softwares to all people
involved in medical imaging (and it is very very useful).

When i tried to use Beth Israel plugin (Pet_ct_viewer, available at
http://sourceforge.net/projects/bifijiplugins/) i had some issues might be
related to ImageJ.

The  main problem is when trying to open PET and CT sequence the plugin
fails to display reconstructed images.

I'm running the latest version of Fiji (Image J 1.48k), the installation of
the plugin had been checked by the developer of Beth Israel Plugin and the
problem is present in all platform (Linux 64, Windows 7 and Mac OS).

With the developer we made a shared folder with a proper installation of
Fiji and his plugin, for mysterious reasons when executing the same files
he got normal display whereas i have got no display at all.

The developer, using remote desktop, tried to execute the software on my
computer. He found the plugin behaved like run out memory (endless loop).

We don't have found the explanation of this problem. one idea of the
developper is that something is going wrong in memory allocation.

We have done several tests without any results :
- Used different datasets of images
- Uninstalled Java 7 and installed java 6 as default
- Increased maximum memory in Fiji (up to 2.7 GB)

We use different hardware, his computer have 2 cores and 4 GB memory (all
is working well on his computer) and i have i7 CPU with 4GB of RAM.

In my dropbox (https://www.dropbox.com/sh/g6xariin7t2sayx/X5jF_Jw2g-) you
can find an installation of FIJI and Beth Israel plugin to reproduce the
bug (and images 189 slices CT, 233 and 234 slices PET).
For this you have to import PET and CT sequence in Fiji (this is working
well in Fiji) and start the plugin "Pet ct viewer", select the three
sequences (CT, uncorrected attenuation PET and corrected PET) and you will
probably find out a empty plugin (like screenshot in attachment).

Any help from the community would be welcome, we will follow this
discussion to provide you any information you want,

Thank you for your interest,

Best regards,

Salim Kanoun


[image: Images intégrées 1][image: Images intégrées 2]

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[Salim Kanoun]

Hello everybody,

Finally we have find out the problem. It was related to system language, in
french system the decimal is a comma. This difference induced errors in the
program.

Sorry for inconvenience,

Salim


2013/12/29 Salim Kanoun <[hidden email]>

> Hello everybody,
>
> i'm a resident in nuclear medicine (in France), i'm trying to run Fiji
> with Beth Israel plugin (a viewer for PET/CT)
>
> First of all i would like to say thank you for all developers working on
> ImageJ/Fiji and theirs plugins providing great softwares to all people
> involved in medical imaging (and it is very very useful).
>
> When i tried to use Beth Israel plugin (Pet_ct_viewer, available at
> http://sourceforge.net/projects/bifijiplugins/) i had some issues might
> be related to ImageJ.
>
> The  main problem is when trying to open PET and CT sequence the plugin
> fails to display reconstructed images.
>
> I'm running the latest version of Fiji (Image J 1.48k), the installation
> of the plugin had been checked by the developer of Beth Israel Plugin and
> the problem is present in all platform (Linux 64, Windows 7 and Mac OS).
>
> With the developer we made a shared folder with a proper installation of
> Fiji and his plugin, for mysterious reasons when executing the same files
> he got normal display whereas i have got no display at all.
>
> The developer, using remote desktop, tried to execute the software on my
> computer. He found the plugin behaved like run out memory (endless loop).
>
> We don't have found the explanation of this problem. one idea of the
> developper is that something is going wrong in memory allocation.
>
> We have done several tests without any results :
> - Used different datasets of images
> - Uninstalled Java 7 and installed java 6 as default
> - Increased maximum memory in Fiji (up to 2.7 GB)
>
> We use different hardware, his computer have 2 cores and 4 GB memory (all
> is working well on his computer) and i have i7 CPU with 4GB of RAM.
>
> In my dropbox (https://www.dropbox.com/sh/g6xariin7t2sayx/X5jF_Jw2g-) you
> can find an installation of FIJI and Beth Israel plugin to reproduce the
> bug (and images 189 slices CT, 233 and 234 slices PET).
> For this you have to import PET and CT sequence in Fiji (this is working
> well in Fiji) and start the plugin "Pet ct viewer", select the three
> sequences (CT, uncorrected attenuation PET and corrected PET) and you will
> probably find out a empty plugin (like screenshot in attachment).
>
> Any help from the community would be welcome, we will follow this
> discussion to provide you any information you want,
>
> Thank you for your interest,
>
> Best regards,
>
> Salim Kanoun
>
>
> [image: Images intégrées 1][image: Images intégrées 2]
>
>
>
>
>
>
>
>

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ImageJ mailing list: http://imagej.nih.gov/ij/list.html