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<DIV><FONT face=Arial size=2>Thank you all for your help!! :>
I am very grateful!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>However, here comes my last question for
today....an important one too!!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>After the registration, I get the transformation
matrix like this:</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT
size=2>-------------------------------------------------------------------</FONT></DIV>
<DIV><FONT size=2>0.999989
7.20486e-005 0.00465958
1.38855</DIV>
<P>-0.000125782
0.999933
0.0115325 0.417157</P>
<P>-0.00465843
-0.0115329
0.999923 0.420273</P>
<P>0
0 0 1</P></FONT>
<DIV><FONT face=Arial
size=2>---------------------------------------------------------------------</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>From the rotational part of the matrix, it seems to
me that it's close to</FONT></DIV>
<DIV><FONT face=Arial size=2>an identity matrix. (or is it?) But
then, how come some of the beginning</FONT></DIV>
<DIV><FONT face=Arial size=2>slices of the registered moving image were
gone? ...It seems that there is</FONT></DIV>
<DIV><FONT face=Arial size=2>some rotation about x or y axis that causes
this.... but how do we read it</FONT></DIV>
<DIV><FONT face=Arial size=2>from the registration transformation
matrix?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanx!!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Grace</FONT></DIV></BODY></HTML>