[Insight-users] Lossless rotation

Lydia Ng lng at insightful.com
Mon, 15 Mar 2004 10:07:04 -0800


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Radhika,
=20
A PermuteAxesImageFilter might do what you want - it just copies the =
pixels
and does not do any interpolation.
=20
- Lydia
=20
-----Original Message-----
From: Radhika Sivaramakrishna =
[mailto:radhika.sivaramakrishna at synarc.com]=20
Sent: Monday, March 15, 2004 9:55 AM
To: ITK
Cc: Luis Ibanez (luis.ibanez at kitware.com)
Subject: [Insight-users] Lossless rotation
=20
Hi Luis,
I had a question regarding lossless rotation:
=20
I wanted to reformat a given 3D image collected coronally  to get slices =
in
axial orientation.
I am using the VersorRigid3DTransform and using the SetRotationAroundX
function to do this
and finally obtaining resampled data.
Is there a better and more efficient way to do this?
=20
Thanks
Radhika
=20
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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Radhika,<o:p></o:p></span></font></p=
>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>A <span =
class=3DSpellE>PermuteAxesImageFilter</span>
might do what you want &#8211; it just copies the pixels and does not do =
any
interpolation.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
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  size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
  color:navy'>Lydia</span></font></st1:place></st1:country-region><font =
size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'><o:p></o:p></span></font></p>

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<p class=3DMsoNormal><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma'>-----Original Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> Radhika =
Sivaramakrishna
[mailto:radhika.sivaramakrishna at synarc.com] <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> =
</span></font><st1:date
Month=3D"3" Day=3D"15" Year=3D"2004"><font size=3D2 face=3DTahoma><span =
style=3D'font-size:
 10.0pt;font-family:Tahoma'>Monday, March 15, =
2004</span></font></st1:date><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'> </span></font><st1:time
Hour=3D"9" Minute=3D"55"><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
 font-family:Tahoma'>9:55 AM</span></font></st1:time><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'><br>
<b><span style=3D'font-weight:bold'>To:</span></b> ITK<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> Luis Ibanez
(luis.ibanez at kitware.com)<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> [Insight-users] =
Lossless
rotation</span></font></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hi Luis,<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I had a question regarding lossless =
rotation:<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I wanted to reformat a given 3D image collected
coronally<span style=3D'mso-spacerun:yes'>&nbsp; </span>to get slices in =
axial
orientation.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I am using the VersorRigid3DTransform and using the
SetRotationAroundX function to do this<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>and finally obtaining resampled =
data.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Is there a better and more efficient way to do =
this?<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Radhika<o:p></o:p></span></font></p>

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style=3D'font-size:10.0pt;
font-family:Arial'><span =
style=3D'mso-spacerun:yes'>&nbsp;</span><o:p></o:p></span></font></p>

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