<div dir="ltr"><div>Dear Kuis,</div>
<div> </div>
<div>thanks for reply, I have small question, <br></div>
<div>I read DICOM series and reconstruct it to get the 3D skull, select the point in mandible at the level of 3D reconstructed or at teh level of the 2D series</div>
<div> </div>
<div>sorry for myquestions, but I'm new to VTK, ITK and segmentation </div>
<div> </div>
<div>Best regards <br></div>
<div class="gmail_quote">On Sun, Mar 7, 2010 at 2:19 AM, Luis Ibanez <span dir="ltr"><<a href="mailto:luis.ibanez@kitware.com">luis.ibanez@kitware.com</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
<div class="im">Hi Ali,<br><br>Thanks for posting your code.<br><br>The likely source of the problem is that<br>you are currently setting the seed point<br>in the middle of the image:<br><br> seed[0] = start[0] + size[0] / 2;<br>
seed[1] = start[1] + size[1] / 2;<br> seed[2] = start[2] + size[2] / 2;<br><br><br>The seed point should be placed inside<br>the mandibule (or any other anatomical<br>structure that you want to segment).<br><br>
Typically, a seed point is placed interactively<br>by offering a GUI+Visualization to the user.<br><br>There are multiple ways in VTK to get the<br>coordinates of a pixel in which the user has<br>clicked (for example the vtkWorldPointPicker)<br>
<br>You may also want to start with a smaller value<br>for the sigma multiplier (e.g. 1.5 instead of 2.5),<br>and only increase that value if your segmentation<br>doesn't include the entire mandible.<br><br>You may want to read the description of this<br>
</div>region growing segmentation filter in the<br>
<div class="im">ITK Software Guide:<br><br> <a href="http://www.itk.org/ItkSoftwareGuide.pdf" target="_blank">http://www.itk.org/ItkSoftwareGuide.pdf</a><br><br><br><br></div> Regards,<br><br><br> Luis<br><br>
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<div class="h5">On Fri, Mar 5, 2010 at 6:03 PM, Ali Habib <<a href="mailto:ali.mahmoud.habib@gmail.com">ali.mahmoud.habib@gmail.com</a>> wrote:<br>> Dear Luis,<br>> I tried to use confidenceconnected filter, and watersheed filter but<br>
> displaying the output is white<br>> I attached the confidence code I use , please help me in it<br>> Best regards<br>><br>> On Tue, Feb 16, 2010 at 12:51 AM, Luis Ibanez <<a href="mailto:luis.ibanez@kitware.com">luis.ibanez@kitware.com</a>><br>
> wrote:<br>>><br>>> Hi Ali,<br>>><br>>> What image modality do you have ?<br>>><br>>> Do you have a CT scan ?<br>>><br>>><br>>> If so,<br>>> you may want to experiment with the following filters:<br>
>><br>>><br>>> 1) ConfidenceConnectedImageFilter, or<br>>> 2) IsolatedConnectedImageFilter<br>>><br>>><br>>> You will find them described in the ITK Software Guide<br>>><br>
>> <a href="http://www.itk.org/ItkSoftwareGuide.pdf" target="_blank">http://www.itk.org/ItkSoftwareGuide.pdf</a><br>>><br>>><br>>> and you will find source code examples in<br>>><br>>> Insight/Examples/Segmentation<br>
>><br>>><br>>> Regards,<br>>><br>>><br>>> Luis<br>>><br>>><br>>> ------------------------------------------------------------------<br>>> On Mon, Feb 15, 2010 at 8:43 AM, Ali Habib <<a href="mailto:ali.mahmoud.habib@gmail.com">ali.mahmoud.habib@gmail.com</a>><br>
>> wrote:<br>>> > Dear All,<br>>> ><br>>> ><br>>> > I need to segemnt 3D reconstruction of skull, do any one have any idea<br>>> > resource for doing that<br>>> ><br>
>> > Best regards<br>>> > _____________________________________<br>>> > Powered by <a href="http://www.kitware.com/" target="_blank">www.kitware.com</a><br>>> ><br>>> > Visit other Kitware open-source projects at<br>
>> > <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>>> ><br>>> > Kitware offers ITK Training Courses, for more information visit:<br>
>> > <a href="http://www.kitware.com/products/protraining.html" target="_blank">http://www.kitware.com/products/protraining.html</a><br>>> ><br>>> > Please keep messages on-topic and check the ITK FAQ at:<br>
>> > <a href="http://www.itk.org/Wiki/ITK_FAQ" target="_blank">http://www.itk.org/Wiki/ITK_FAQ</a><br>>> ><br>>> > Follow this link to subscribe/unsubscribe:<br>>> > <a href="http://www.itk.org/mailman/listinfo/insight-users" target="_blank">http://www.itk.org/mailman/listinfo/insight-users</a><br>
>> ><br>>> ><br>><br>><br></div></div></blockquote></div><br></div>