<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>You'll get a "nicer" surface model if you start with a cleaner segmentation (the images look very noisy).</span></div><div><span>It will be easier to create a tetmesh from a nice surface.<br></span></div><div><br><span></span></div><div><span>1 - Choose a good threshold value.</span></div><div><span>2 - Fill holes in segmentation (manually or floodfill algorithm or both)</span></div><div><span>3 - Remove noise outside segmentation (= inverse of point 2).</span></div><div><span>4 - Marching Cubes on clean segmentation<br></span></div><div><span>(5 - Smoothing of surface model)<br></span></div><div><br><span></span></div><div><span>I never generated a tetmesh with the use of </span><span>VTK</span><span>.</span></div><div><span>Not sure VTK is the way to go, maybe using a FE preprocessor might give better
results.<br></span></div><div><br></div><div>Maarten<br></div><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><font face="Arial" size="2"><hr size="1"><b><span style="font-weight:bold;">From:</span></b> smallping <smallping_hit@yahoo.com.cn><br><b><span style="font-weight: bold;">To:</span></b> vtkusers@vtk.org<br><b><span style="font-weight: bold;">Sent:</span></b> Saturday, August 6, 2011 5:37:24 PM<br><b><span style="font-weight: bold;">Subject:</span></b> [vtkusers] Find somebody to help us to finish the project and pay money for the work<br></font><br>Hi,<br><br>We have an urgent project, and we want to find somebody to help us to do<br>some work, and we can pay some money for the work.<br>I think the work is not difficult, if you are familiar with ITK and VTK, <br>and also medical image processing.<br>We read the medical
data from DICOM series of CT scan, and then create<br>tetrahedral mesh for volume modeling. After this, we can do some research<br>work on the volume models.<br><br>And we want to find somebody to do the work like this:<br>1) Read the 3D image data from DICOM series.<br>2) Smooth and segment the image.<br>3) Use the Marching Cubes algorithm to generate the surface mesh.<br>4) Generate the tetrahedral mesh from the surface mesh, and save into .vtk<br>file<br><br>I have tried to do some work on this, but I am new to ITK, VTK and medical<br>image processing, so the result of the surface mesh is not good, there are<br>holes and noisy data on the surface mesh, and then I cannot generate the<br>tetrahedral mesh from surface mesh, there are many errors. I have posted the<br>question on the forum, you can find my link.<br><br>If you are interested in the work, you can contact with me, my email is<br><a ymailto="mailto:smallping@fe.up.pt"
href="mailto:smallping@fe.up.pt">smallping@fe.up.pt</a>, I am at Porto University.<br><br>I can give you the DICOM series, it is the CT scan data of the tooth<br>surgery.<br>The following are the some pictures of my work.<br><a href="http://vtk.1045678.n5.nabble.com/file/n4673650/surface_model_of_tooth_before_smooth_and_segmentation.jpg" target="_blank">http://vtk.1045678.n5.nabble.com/file/n4673650/surface_model_of_tooth_before_smooth_and_segmentation.jpg</a> <br><br><a href="http://vtk.1045678.n5.nabble.com/file/n4673650/surface_model_of_tooth_after_smooth_and_segmentation.jpg" target="_blank">http://vtk.1045678.n5.nabble.com/file/n4673650/surface_model_of_tooth_after_smooth_and_segmentation.jpg</a> <br><br>--<br>View this message in context: <a href="http://vtk.1045678.n5.nabble.com/Find-somebody-to-help-us-to-finish-the-project-and-pay-money-for-the-work-tp4673650p4673650.html"
target="_blank">http://vtk.1045678.n5.nabble.com/Find-somebody-to-help-us-to-finish-the-project-and-pay-money-for-the-work-tp4673650p4673650.html</a><br>Sent from the VTK - Users mailing list archive at Nabble.com.<br>_______________________________________________<br>Powered by www.kitware.com<br><br>Visit other Kitware open-source projects at <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br><br>Please keep messages on-topic and check the VTK FAQ at: <a href="http://www.vtk.org/Wiki/VTK_FAQ" target="_blank">http://www.vtk.org/Wiki/VTK_FAQ</a><br><br>Follow this link to subscribe/unsubscribe:<br><a href="http://www.vtk.org/mailman/listinfo/vtkusers" target="_blank">http://www.vtk.org/mailman/listinfo/vtkusers</a><br><br><br></div></div></div></body></html>