[Insight-users] ICP progress monitoring still not working(?)

[Benedikt Birkenbach]

Hi Luis,

I am sorry, but I can't get this running. I've updated the latest CVS and installed it, but still there is no
iterationEvent in relation with the LevenbergMarquardtOptimizer.

Maybe something is wrong, but I did as said in the Textbook. Here is the source, maybe somthing wents wrong.

--------------------------------------------------------------------------------------------------------

// THE OBSERVER CLASS FOR ITK
class CommandIterationUpdate : public itk::Command
{
public:
	typedef CommandIterationUpdate Self;
	typedef itk::Command Superclass;
	typedef itk::SmartPointer<Self> Pointer;

	itkNewMacro( Self );
protected:
	CommandIterationUpdate() {};

public:
	typedef itk::LevenbergMarquardtOptimizer OptimizerType;
	typedef const OptimizerType *OptimizerPointer;
	
	void Execute(itk::Object *caller, const itk::EventObject & event)
	{
		Execute( (const itk::Object *)caller, event);
	}
	void Execute(const itk::Object * object, const itk::EventObject & event)
	{
		OptimizerPointer optimizer = dynamic_cast< OptimizerPointer >( object );
		if(! itk::IterationEvent().CheckEvent( &event ))
		{
			cout << "wrong" << endl;
			return;
		}
		cout << "Position : " << optimizer->GetCurrentPosition() << endl;
	}
};

--------------------------------------------------------------------------------------------------------
And -->
--------------------------------------------------------------------------------------------------------

CommandIterationUpdate::Pointer observer = CommandIterationUpdate::New();
optimizer->AddObserver( itk::EndEvent(), observer );
try
{
	registration->StartRegistration();
}
catch( itk::ExceptionObject & e )
{
	cout << e << endl;
}

--------------------------------------------------------------------------------------------------------

Any hints, regards

Benedikt


Luis Ibanez wrote:
> 
> Hi Patrick,
> 
> You are right, the ITK adapters to MutlipleValued VNL optimizers
> were not yet reporting iteration events during the optimization.
> 
> We just committed a fix for this lack of support. Mainly copying it
> from the Single Valued optimizers, that already have it implemented.
> 
> You may have to update you CVS checkout of ITK in order to get access
> to this functionality.
> 
-- 
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/ __ \/ __ \|__  || |/ /  Benedikt Birkenbach                 |
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