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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="http://www.slicer.org/slicerWiki/index.php/Coordinate_systems">http://www.slicer.org/slicerWiki/index.php/Coordinate_systems</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">By default, Slicer saves fiducials are saved in the RAS coordinate system, while ITK uses LPS.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Andras<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> Community [mailto:community-bounces@itk.org]
<b>On Behalf Of </b>Hammond, Emily M<br>
<b>Sent:</b> Friday, June 06, 2014 10:36 AM<br>
<b>To:</b> insight-users@itk.org<br>
<b>Subject:</b> [ITK] [ITK-users] ITK/Slicer coordinate difference<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">Hi all,
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">I'm having an issue with the difference between Slicer and ITK coordinates. I obtained fiducial coordinates (physical locations) in Slicer and fed them into my
ITK code. My code takes the points and applies my final registration transform to find out where their final position after registration is. However, there is some difference between the way ITK and Slicer handle coordinates. Could someone give me a brief
explanation as to what that difference is and how I can account for it in my ITK code?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">Thanks,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">Emily Hammond<o:p></o:p></span></p>
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