How can I solve the problem of Medical Image memory management?

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VS2010

We program a software to process the Medical Image,all of the image fomat is Dicom.Now, we have a problem about the memory management, our computer is Win7 32 Bit + 4G +VS2010, We use ITK + VTK to read and display the image.When processing the image which is larger than 200M, it will be called the bad_Alloc.We think that it maybe the limition of the ITK? We want to find an effective method for the memory managerment to process the large image.It is better to control the memory less than 1G.
Waiting for good news!

Posted 26-Aug-14 17:51pm

A-joy

Updated 26-Aug-14 22:14pm

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Bernhard Hiller 27-Aug-14 2:26am

"bad_mac errors" - never heard that term before. A Google search shows it only in the context of SSL / https. Are you sure you reported the error message correctly? Or did you mix up different error situations?

A-joy 27-Aug-14 4:13am

Thanks.I am sorry for the mistake.It should be bad_Alloc.

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Sergey Alexandrovich Kryukov · Answer 1 · 2014-08-26T18:25:00

Solution 1

Older 32-bit systems are not really suitable for big volumes of pixel graphics; the memory accessible by applications is limited to 2GB, could be increased to some 3GB. You can reduce memory consumption by limiting amount of graphics shown at once. You can even show one bit bitmap composed by an array of smaller bitmaps, showing few at the same time and panning image the way making the illusion of one big image.

—SA

Posted 26-Aug-14 18:25pm

Sergey Alexandrovich Kryukov

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A-joy 27-Aug-14 4:21am

I have thought about this method.It is very complicated and I can't do it.And there is not much time to me so I want someone who can solve this problem.Can you help me ?

Sergey Alexandrovich Kryukov 27-Aug-14 11:13am

Certainly, this is pretty complicated. Help? It depends on what help would you need. In this forum, we only help by giving advice and answering questions. If you have some questions, I'll gladly try to answer.
—SA

A-joy 27-Aug-14 22:00pm

I hope to search for someone who can provide us outsourcing because we don't have much time to carry on research then solve it.

Sergey Alexandrovich Kryukov 27-Aug-14 22:07pm

In all cases, this is well beyond the format of this forum...
—SA

A-joy 27-Aug-14 22:12pm

I got it.But I don't know which website provides outsourcing.Can you recommend me some?
Thanks for you advice,but now we have no time to research it.

Felix Gundlack · Answer 2 · 2014-08-26T23:38:00

Hi,

How do you load the DicomData?
Do you load it in one big chunk into a 3D Container? This might make trouble because allocating big chunks of memory can throw bad_alloc exceptions due to the fact that there is no chunk left of this sice (fragmentation issue).

I recommend handling each slice of the volume separately to avoid running into this issue.
The probability to get trouble loading one chunk with 200MB is higher than loading 20*10MB chunks of memory.

I ran into this kind of problem once using Matlab. Loading the data slice by slice, saving it into 2D containers in an list solved the issue.

How can I solve the problem of Medical Image memory management?

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How can I solve the problem of Medical Image memory management?

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