[Insight-users] Failed to allocate memory for image

[Ming Chao]

Hi Luis,

Sorry for my late response. Please see the following for your questions.


What tool did you used for monitoring the memory usage ?

The tool I used is just the Windows Task Manager.

What was the memory usage for the entire machine ?
(you only reported the usage for the registration application).

I don't remember the exact number, but I do know that the registration
application had the largest consumption of memory.  I am sure the total
memory usage did not exceed the allowed memory.

Do you have other applications running at the same time that
your are running the registration application ?

No.

In Windows 32 bits, a process can only access 2Gb of contiguous
RAM.

What Image Metric are you using ?
(e.g. is it one of the metrics that computes the image gradient?)

Normalized Cross Correlation.

What other ITK and/or VTK filter do you have in that pipeline.

I did not have any other filters.

At what point in the execution of your program do you get this
message ?

Before the first iteration during the registration which is actually a rigid
one.

Have the registration started ?

Yes.

Do you got some optimization iterations ?

No.

It is very likely that you are actually using most of those
2Gb of data, and may have to release memory as your appllication
progresses with its pipeline.

I am not sure what you meant here. Why do you say that I used most of the
2GB data? How can I release memory?

I want to repeat that my registration is actually very simple one, ie, rigid
registration. I don't have any intermediate filters. Hope my answers to your
questions help to debug the problem.

Thanks,
Ming



--------------------
Ming Chao wrote:
> Hi,
>
> I know this question has been asked many times, but it's still not clear
> to me how to solve it. I try to register two images which are ~70mb each
> (512X512X136). I got the the following error:
>
> ===================================
> ExceptionObject caught !
>
> itk::ExceptionObject (0129FB70)
> Location: "unknown"
> File: C: \ITK\InsightToolkit-2.8.1\Code\Common\itkImportImageContainer.txx
> Line: 188
> Description: Failed to allocate memory for image.
>
> ===================================
>
> I am using ITK 2.8.1, VTK 5.01, VC++ 6.0. The operating system is
> Windows XP professional edition (32 bits) with Xeon CPU 3.6GHz and 3.0
> GB memory. I monitored the memory usage and found that only 280 MB used
> for the registration process which is nothing unreasonable. What is
> wrong here? How to solve the problem. I know if I filtered the image by
> 2X2, then it would be fine, but I would still like to keep the image as
> it is.
>
> Thanks for any hints,
> Ming
>
>
>
> ------------------------------------------------------------------------
>
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