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<DIV><FONT face=Arial size=2> Hi,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2> I use BSpline transform to non-rigid registe
two 3D images. Both are 256*256*46, unsigned char.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2> Metric is MattesMI and Optimizer is LBFG. I
set the parameter as below.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>
optimizer->SetGradientConvergenceTolerance( 0.05 );<BR>
optimizer->SetLineSearchAccuracy( 0.9 );<BR>
optimizer->SetDefaultStepLength( 1.5 );<BR>
optimizer->TraceOn();<BR>
optimizer->SetMaximumNumberOfFunctionEvaluations( 1000 );<BR></FONT></DIV>
<DIV><FONT face=Arial size=2>the output is :</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>F = -0.376733, GNORM =
0.00103313<BR>*************************************************<BR>
I NFN
FUNC
GNORM STEPLENGTH<BR>
1 3
-0.388 0.001
4839.674<BR> THE MINIMIZATION TERMINATED WITHOUT DETECTING
ERRORS.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>the steplength is so large, so I do not know if the
result is correct.</FONT></DIV></BODY></HTML>