Hi Yap, if you are on a 64 bit system, and assuming you compiled vmtk from scratch (correct me if I'm wrong) make sure that vmtk and its dependencies are compiled for a 64 bit architecture (amd64 or x86_64). You should find a reference to these two in your CMakeCache.txt in the build directories. If you are running on a 64 bit system, your build should already be 64 bits anyway...
In any case, there is a possibility that memory is not sufficient if you are running, for instance, level sets on very large images. Running level sets means that your image has to be replicated several times in memory (to compute gradients, etc), and converted to "expensive" numerical representations, so it's totally possible that you run out of memory. Just so you know, you can for instance segment individual VOIs and merge them after segmentation, or you can work on a subsampled image and then optimize your segmentation on the full image. Or you could rely on less expensive deformable models - an explicit deformable model such as the one provided by vmtkpotentialfit. Or a bit of all the above. What's the right way to go really depends on the problem at hand and what you're trying to achieve. What is the size of your images and what algorithms are you trying to run on them? Luca On Jul 21, 2011, at 9:05 PM, Yap, Choon Hwai wrote: > Hi, > > I would like to segment very high resolution images, and keep encountering > memory error as such: > > ERROR: In /build/buildd/vtk-5.4.2/Common/vtkDataArrayTemplate.txx, line 141 > vtkFloatArray (0x1d582b0): Unable to allocate 186212691 elements of size 4 > bytes. > > Is there a way to increase the memory allocation for vmtk? > I'm using Ubuntu v11.04 > > Any advice will be greatly appreciated..! > Thanks! > > regards, > Yap > > ------------------------------------------------------------------------------ > 5 Ways to Improve & Secure Unified Communications > Unified Communications promises greater efficiencies for business. UC can > improve internal communications as well as offer faster, more efficient ways > to interact with customers and streamline customer service. Learn more! > http://www.accelacomm.com/jaw/sfnl/114/51426253/ > _______________________________________________ > vmtk-users mailing list > vmtk-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/vmtk-users ------------------------------------------------------------------------------ Got Input? Slashdot Needs You. Take our quick survey online. Come on, we don't ask for help often. Plus, you'll get a chance to win $100 to spend on ThinkGeek. http://p.sf.net/sfu/slashdot-survey _______________________________________________ vmtk-users mailing list vmtk-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/vmtk-users
