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<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">Hi Tom,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">The CTscanner output (*.dat) are raw data files coded as float (32 bits) and here is a way you can read it using matlab:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">fid = fopen(‘CTscannerProjection.dat’,’r’);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">p = fread(fid,’float32’) ;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">fclose(fid);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">p1 = reshape(p,[N M]); % N,M are the sizes of your detector panel (in number of pixels)
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">You can read them also using ImageJ software by navigating to: File->Import->raw then select your *.dat file, a new window will appear, go to Image type and scroll down to 32-bit
Real, and specify the image width and height (in pixels), check Little-endian byte order case and clique OK
</span><span style="font-family:Wingdings;color:#200498">J</span><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">I hope it helps
</span><span style="font-family:Wingdings;color:#200498">J</span><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">Mahdjoub,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">Postdoc research Associate,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">Washington University in St. Louis,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">Phone number: +1 314 362 8315<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">Campus box: 8225<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498">Stl, MO, USA<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma",sans-serif;color:#200498"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Gate-users [mailto:gate-users-bounces@lists.opengatecollaboration.org]
<b>On Behalf Of </b>Russ, Tom<br>
<b>Sent:</b> Thursday, August 22, 2019 8:23 AM<br>
<b>To:</b> gate-users@lists.opengatecollaboration.org<br>
<b>Subject:</b> [Gate-users] Output imageCT<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="DE">Dear Gate-community,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE"><o:p> </o:p></span></p>
<p class="MsoNormal">at the moment, I am starting with simulations of simple cone-beam CT images.<o:p></o:p></p>
<p class="MsoNormal">For starters, I am running the example in the GateContrib folder, classic mode.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The problem I am having is regarding the output ‘imageCT’.<o:p></o:p></p>
<p class="MsoNormal">I am assuming (more like hoping) that this output can provide me with direct CT projections, i.e. a matrix (with the size of the number of pixels) with the number of Singles in each pixel.<o:p></o:p></p>
<p class="MsoNormal">Is that correct or a misconception?<o:p></o:p></p>
<p class="MsoNormal">Because when I am trying to import the resulting ‘.dat’-file into MATLAB it is giving me a matrix with far more elements than pixels in my detector.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you very much in advance for your help!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Tom<o:p></o:p></p>
<p class="MsoNormal"><span style="color:black">=============================================<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">Tom Russ, M.Sc.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Projektgruppe „Image Guided Interventions“<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="color:black">Computerunterstützte Klinische Medizin<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="color:black">Medizinische Fakultät Mannheim<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="color:black">Ruprecht-Karls-Universität Heidelberg<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="color:black">Theodor-Kutzer-Ufer 1 - 3<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="color:black">68167 Mannheim<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="color:black">Tel. +49 621 383-6552<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="color:black">E-Mail:</span><span lang="DE">
<a href="mailto:Tom.Russ@MedMa.Uni-Heidelberg.de"><span style="color:blue">Tom.Russ@MedMa.Uni-Heidelberg.de</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE"><a href="http://www.umm.uni-heidelberg.de/inst/cbtm/ckm/"><span style="color:blue">http://www.umm.uni-heidelberg.de/inst/cbtm/ckm/</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE"><o:p> </o:p></span></p>
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