Alba:<br><br>Also take a look at the examples and tests I placed in the repository: <br>
<br> Examples/Filtering/DiffusionTensor3DReconstructionImageFilter.cxx<br>
Testing/Code/BasicFilters/itkDiffusionTensor3DReconstructionImageFilterTest.cxx<br><br>and the NRRD IO part :<br>
Testing/Code/IO/itkNrrdDiffusionTensor3DImageReadWriteTest.cxx<br>
Testing/Code/IO/itkNrrdDiffusionTensor3DImageReadTest.cxx<br><br>As the example mentions:<br><br>// The easiest way to get started is to try out the filter on a sample dataset.<br>// <br>// Acquiring sample datasets:<br>
// 1. Get the DWI datasets from <br>// <a href="ftp://public.kitware.com/pub/namic/DTI/Data/dwi.nhdr">ftp://public.kitware.com/pub/namic/DTI/Data/dwi.nhdr</a><br>// <a href="ftp://public.kitware.com/pub/namic/DTI/Data/dwi.img.gz">ftp://public.kitware.com/pub/namic/DTI/Data/dwi.img.gz</a> (gunzip this)<br>
// These datasets contain a reference T1 image and 30 diffusion weighted<br>// images. See the nrrd header for details such as B value etc..<br>//<br>// 2. Run the example with the following args<br>// dwi.nhdr 80 Tensors.mhd FractionalAnisotropy.mhd RelativeAnisotropy.mhd 1<br>
// <br>// 3. You should find 30 gradient images, 1 reference image, the FA and RA images<br>// in your working directory, which you can fire up in your favourite volume<br>// browser.<br><br>Hope this helps<br>--<br>
karthik<br><br><br><div class="gmail_quote">On Wed, Feb 16, 2011 at 11:57 PM, Magnotta, Vincent A <span dir="ltr"><<a href="mailto:vincent-magnotta@uiowa.edu">vincent-magnotta@uiowa.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<div>Here is a link to a program that we write that uses the filter. We use NRRD files as input to this program.</div>
<div><br>
</div>
<div><a href="http://www.nitrc.org/plugins/scmsvn/viewcvs.php/GTRACT/Cmdline/gtractTensor.cxx?root=vmagnotta&view=markup" target="_blank">http://www.nitrc.org/plugins/scmsvn/viewcvs.php/GTRACT/Cmdline/gtractTensor.cxx?root=vmagnotta&view=markup</a></div>
<div><br>
</div>
<div>Vince</div>
<div><br>
</div>
<div>
<div>
<div>-- </div>
<div><font face="Calibri,Verdana,Helvetica,Arial"><span style="font-size: 11pt;">Associate Professor<br>
Department of Radiology<br>
0453-D JCP<br>
200 Hawkins Drive<br>
Iowa City, IA 52242<br>
E-mail: <a href="mailto:vincent-magnotta@uiowa.edu" target="_blank">vincent-magnotta@uiowa.edu</a><br>
Phone: 319-356-8255 Fax: 319-353-6275<br>
Website: <a href="http://www.healthcare.uiowa.edu/Radiology" target="_blank">http://www.healthcare.uiowa.edu/Radiology</a></span></font></div>
</div>
</div>
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<span style="font-weight: bold;">From: </span>alba garin <<a href="mailto:albagarin1986@hotmail.com" target="_blank">albagarin1986@hotmail.com</a>><br>
<span style="font-weight: bold;">Date: </span>Wed, 16 Feb 2011 08:15:47 +0000<br>
<span style="font-weight: bold;">To: </span><<a href="mailto:insight-users@itk.org" target="_blank">insight-users@itk.org</a>><br>
<span style="font-weight: bold;">Subject: </span>[Insight-users] DiffusionTensor3DReconstructionFilter<br>
</div><div><div></div><div class="h5">
<div><br>
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<div>
<div>Hi everyone,
<div><br>
</div>
<div>im getting mad trying to use the DiffusionTensor3DReconstructionFilter with a nrrd diffusion file. I store properly the gradients and after using the filter I get a image with pixels of DiffusionTensor3D. the problem is that this image has as voxels only
zeros...</div>
<div>anyone can help me, please?</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Alba<br>
<div> </div>
</div>
</div>
</div></div></div>
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