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</o:shapelayout></xml><![endif]--></head><body lang=KO link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'>Dear,<o:p></o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'><o:p> </o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'>Thank you for your reply, but I still have a question.<o:p></o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'>I am trying to use Rtksimulatedgeometry which employs Addprojection. It supports in_angle and out_angle, which is clear.<o:p></o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'>There is also a parameter for gantry angle, but it does not seem that simulation of slant can be done by simply changing the gantry angle.<o:p></o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'><o:p> </o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'>Left side of the figure is the schematic of simulation that I want which only slants the detector.<o:p></o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'>But if I perform the simulation as you suggest, the result that I will get would be like the right side of the figure.<o:p></o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'>To my understanding, the results of these two are not the same. (Slant degree itself is same, but in the perspective of distance reaching to side of the detector, it would be different.)<o:p></o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'><o:p> </o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'>It would be appreciated to help me to simulate only the slant of the detector.<o:p></o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'><o:p> </o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'>Regards,<o:p></o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'>Chang.<o:p></o:p></span></p><p class=MsoNormal style='word-break:break-hangul'><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕"'><o:p> </o:p></span></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Simon Rit <simon.rit@creatis.insa-lyon.fr> <br><b>Sent:</b> Friday, November 25, 2022 7:49 PM<br><b>To:</b> </span><span style='font-size:11.0pt'>김창환</span><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> <gameboy514@gmail.com><br><b>Cc:</b> rtk-users@public.kitware.com<br><b>Subject:</b> Re: [Rtk-users] Simulating geometric error on detector<o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><div><div><p class=MsoNormal><span lang=EN-US>Hi,<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>There are three rotations to chose the orientation of the detector: GantryAngle, InPlaneAngle and OutOfPlane. Any orientation can be set. If you want a slant around the detector center, then a change in the GantryAngle will imply a change in SourceToIsocenter, SourceToDetector (both measured in the direction orthogonal to the detector) and SourceOffsetX / ProjectionOffsetX. The geometry documentation should help:<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><a href="http://www.openrtk.org/Doxygen/DocGeo3D.html" target="_blank">http://www.openrtk.org/Doxygen/DocGeo3D.html</a><o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>If you mind find it to set one detector position by setting the source position, detector origin position and the u and v axes. See all the different versions of AddProjection in the <a href="http://www.openrtk.org/Doxygen/classrtk_1_1ThreeDCircularProjectionGeometry.html">doxygen</a>.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Best regards,<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Simon<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><div><div><p class=MsoNormal><span lang=EN-US>On Fri, Nov 25, 2022 at 10:21 AM </span>김창환<span lang=EN-US> <<a href="mailto:gameboy514@gmail.com" target="_blank">gameboy514@gmail.com</a>> wrote:<o:p></o:p></span></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><p class=MsoNormal><span lang=EN-US>Dear all,<o:p></o:p></span></p><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>I am now generating the simulation data with geometric distortions on the detector, by using RTK.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Translation can be easily implemented by adjusting the parameters (proj_iso_x and proj_iso_y).<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>However, for the rotation, it seems that there are only two parameters I can manage. (in_angle and out_angle).<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Thus, at this moment, tilt and skew are available to implement, but for the slant, it seems that there is no such way.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Please let me know if there is any way to implement rotation about one other axis.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>(Image from </span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'>Wang, Zhao, et al. "Improvements in micro-CT method for characterizing x-ray monocapillary optics." <i>Optics Communications</i> 504 (2022): 127474.)</span><span lang=EN-US><o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><img border=0 width=383 height=193 style='width:3.9895in;height:2.0104in' id="그림_x0020_1" src="cid:image001.png@01D902EF.827A1B20"></span><span lang=EN-US><o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-US>_______________________________________________<br>Rtk-users mailing list<br><a href="mailto:Rtk-users@public.kitware.com" target="_blank">Rtk-users@public.kitware.com</a><br><a href="https://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users" target="_blank">https://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users</a><o:p></o:p></span></p></blockquote></div></div></body></html>