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<DIV><FONT face=Arial size=2>Hi there,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV>I am trying to perform multi-modality registration for two volumes.
The two image data have different physical attributes, etc.
different origin, spacing and dimension (so, on the screen, one looks
bigger than the other). I simulated a movement (e.g. a translation (5,
-25, 0) in the fixed image. However, when the registration program
returns, the final transform matrix is </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT size=2>
<P> <FONT size=2>0.999951 0.00912699
-0.00371374 1.3884 </FONT></P>
<P><FONT size=2>-0.0091721
0.999882 </FONT><FONT
size=2> -0.0123175 -3.48145 </FONT></P>
<P><FONT size=2>0.00360089 0.0123509
0.999917 2.08022 </FONT></P>
<P><FONT
size=2>0 0 0 1</FONT></P>
<P><FONT size=3>This result is wrong, isn't it? Does the registration
program scale the images before aligning them? What's going on?</FONT></P>
<P><FONT size=3>Thanx!</FONT></P>
<P><FONT size=3>Grace</FONT></P>
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size=3></FONT> </P></FONT></FONT></DIV></BODY></HTML>