[Insight-users] about point set registration

[Yixun Liu]

Hi,
I use the PointSetToPointSetRegistrationMethod to register two point sets. 
The transform is Bspline, the Metric is ICP and the Optimizer is LBFGSBOptimizer.
However, the error appear in the code:  
registration->SetOptimizer(     optimizer     );

The error is:
cannot convert parameter 1 from 'class itk::SmartPointer<class itk::LBFGSBOptimizer>' to 'class itk::MultipleValuedNonLinearOptimizer *'

As I know the ICP is a single value function, so the optimizer should be SingleValuedNonLinearOptimizer. 
Why does PointSetToPointSetRegistrationMethod use the MultiValuesNonLinearOptimizer as its optimizer?
Which optimizer should I use?

Regards,
Yixun Liu

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