<div dir="ltr"><div>Currently, you cannot use FBP / FDK reconstruction in RTK with cylindrical detector. You can use iterative reconstruction (SART, conjugate gradient, osem, ...)</div><div>Simon<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Jul 2, 2019 at 1:02 PM Ali ghorbanian <<a href="mailto:e.a.gh72@gmail.com">e.a.gh72@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi,<div>I set RadiusCylindricalDetector and see Errore(use CudaFDKConeBeamReconstructionFilter method for Reconstruction)</div><div>voxel-based FDK back projector can currently not handle Cylindrical Detectors.</div><div>So I can not use the FDK filter?</div><div>Which filter should I use for RadiusCylindricalDetector in RTK?</div><div><br></div><div>Best regards <br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jul 1, 2019 at 12:19 PM Simon Rit <<a href="mailto:simon.rit@creatis.insa-lyon.fr" target="_blank">simon.rit@creatis.insa-lyon.fr</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi,</div><div>RTK only works in 3D. Still, you can describe this in 3D. You must set RadiusCylindricalDetector. See the geometry doc <a href="http://www.openrtk.org/Doxygen/DocGeo3D.html" target="_blank">here</a>. Note that only iterative reconstruction currently works with this geometry.</div><div>Simon<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Jun 30, 2019 at 2:06 PM Ali ghorbanian <<a href="mailto:e.a.gh72@gmail.com" target="_blank">e.a.gh72@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi,</div><div dir="ltr">How to use RTK library for fan beam CT (cone beam x-ray with curve shape detector)?<br></div><div>As figure :</div><div><div><img src="cid:ii_jxiwp7ig1" alt="image.png" class="gmail-m_-5299267540544562339gmail-m_-200531006568397263gmail-m_-8650124140161368543gmail-m_-196481302491706712gmail-CToWUd" height="385" width="201"><br></div></div><div><div>Best regards</div></div></div>
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