Hello Alvaro,<br><br><br>basically, ITK does not support the desired feature. You could, however, implement the "n-way" functionality yourself with a certain amount of work (it is quite a lot of work if you want to keep things generic ...).<br>
<br>At the moment, we are developing a competitive tool for image-guided radiotherapy ("GPU-powered n-way intensity-based 2D/3D registration framework", namely "NReg2D/3D") at our institution. The design is finished, we are currently implementing and integrating it with our environment. It is a hybrid framework using ITK, VTK, GLSL (GPU-based DRR rendering) and Qt. Our internal roadmap forecasts a first release in January 2011. We are going to make the core open source (most likely BSD-like license) then. <br>
<br>Moreover, we are currently establishing a website for our institution's open source initiative "open-radART"<br><br><a href="http://www.open-radART.org">www.open-radART.org</a><br><br>(which currently points to our old institution site, but is expected to be updated soon). The mentioned framework (NReg2D/3D), beyond others, can later be found there.<br>
<br>To cut a long story short, if you have the freedom to wait until January 2011, you do not have to program it yourself ;)<br><br>If you have more specific questions about the framework, feel free to contact me.<br><br>
<br>Regards,<br><br>Philipp Steininger<br><br><br><div class="gmail_quote">On Mon, Nov 22, 2010 at 6:05 PM, Bertelsen, Alvaro <span dir="ltr"><<a href="mailto:abertelsen@ceit.es">abertelsen@ceit.es</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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<p class="MsoNormal">Dear ITK users,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-US">I am working on the development of an
image-guided surgery application, for which I need a library for registration
of a 3d image to multiple projections. I know about the classes already
included in ITK –such as RayCastInterpolateImageFunction- and the
extended library developed by Steininger et al. (<a href="http://ibia.umit.at/ResearchGroup/Phil/web/Simple2D3DRegistrationFramework.html" target="_blank">http://ibia.umit.at/ResearchGroup/Phil/web/Simple2D3DRegistrationFramework.html</a>).
However, these do not fit our needs as they are limited to a single 2d image
and we are interested in handling an arbitrary number of them.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">I have searched in the mailing list and
found some other people asking the same question, the last one on April 2006 (unless
I have missed a more recent one). So, does anyone know about an ITK extension
for what I need? Or, is there a way (which I am not aware of) to make ITK
handle multiple fixed (2d) images?</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Any help you could provide me will be
greatly appreciated.</span></p>
<p class="MsoNormal"><span lang="EN-US">Yours sincerely,</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Álvaro Bertelsen</span></p>
<p class="MsoNormal"><span lang="EN-US">CEIT, University of Navarra, Spain</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
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