lti::harrisCorners::parameters Class Reference

the parameters for the class harrisCorners More...

#include <ltiHarrisCorners.h>

Inheritance diagram for lti::harrisCorners::parameters:

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Collaboration diagram for lti::harrisCorners::parameters:

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List of all members.

Public Member Functions
	parameters ()
	parameters (const parameters &other)
	~parameters ()
const char *	getTypeName () const
parameters &	copy (const parameters &other)
parameters &	operator= (const parameters &other)
virtual functor::parameters *	clone () const
virtual bool	write (ioHandler &handler, const bool complete=true) const
virtual bool	read (ioHandler &handler, const bool complete=true)
Public Attributes
float	variance
int	kernelSize
int	maximumCorners
float	scale
localMaxima< float >::parameters	localMaximaParameters
gradientFunctor::parameters	gradientFunctorParameters

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Detailed Description

the parameters for the class harrisCorners

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Constructor & Destructor Documentation

lti::harrisCorners::parameters::parameters

(

)

default constructor

Reimplemented from lti::cornerDetector::parameters.

lti::harrisCorners::parameters::parameters

(

const parameters &

other

)

copy constructor

Parameters:

other

the parameters object to be copied

Reimplemented from lti::cornerDetector::parameters.

lti::harrisCorners::parameters::~parameters

(

)

[virtual]

destructor

Reimplemented from lti::cornerDetector::parameters.

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Member Function Documentation

virtual functor::parameters* lti::harrisCorners::parameters::clone

(

)

const [virtual]

returns a pointer to a clone of the parameters

Reimplemented from lti::cornerDetector::parameters.

parameters& lti::harrisCorners::parameters::copy

(

const parameters &

other

)

copy the contents of a parameters object

Parameters:

other

the parameters object to be copied

Returns:

a reference to this parameters object

Reimplemented from lti::cornerDetector::parameters.

const char* lti::harrisCorners::parameters::getTypeName

(

)

const [virtual]

returns name of this type

Reimplemented from lti::cornerDetector::parameters.

parameters& lti::harrisCorners::parameters::operator=

(

const parameters &

other

)

copy the contents of a parameters object

Parameters:

other

the parameters object to be copied

Returns:

a reference to this parameters object

Reimplemented from lti::cornerDetector::parameters.

virtual bool lti::harrisCorners::parameters::read	(	ioHandler &	handler,
		const bool	complete = true
	)			[virtual]

read the parameters from the given ioHandler

Parameters:

	handler	the ioHandler to be used
	complete	if true (the default) the enclosing begin/end will be also written, otherwise only the data block will be written.

Returns:

true if write was successful

Reimplemented from lti::cornerDetector::parameters.

virtual bool lti::harrisCorners::parameters::write	(	ioHandler &	handler,
		const bool	complete = true
	)			const [virtual]

write the parameters in the given ioHandler

Parameters:

	handler	the ioHandler to be used
	complete	if true (the default) the enclosing begin/end will be also written, otherwise only the data block will be written.

Returns:

true if write was successful

Reimplemented from lti::cornerDetector::parameters.

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Member Data Documentation

gradientFunctor::parameters lti::harrisCorners::parameters::gradientFunctorParameters

In the original work by Harris and Stephens the kernel [-2 -1 0 1 2] was used to calculate the gradients in x and y directions.

However, recently Schmid et al. have found that other kernels e.g. derivatives of gaussians can give superior results (use OGD for that). To provide maximum flexibility the general gradientFunctor is used here.

The gradientFunctor::parameters::format must always be set to Cartesic. This is also default here.

Default gradient type is gradientFunctor::parameters::Harris.

Other values are the default values specified in gradientFunctor::parameters.

See also: harrisKernelX

int lti::harrisCorners::parameters::kernelSize

size of the Gaussian kernel used as window for the autocorrelation

Default value: 7

localMaxima<float>::parameters lti::harrisCorners::parameters::localMaximaParameters

A localMaxima<float> functor is used to detect the corners.

The parameters for it can be given here.

Default value: localMaxima<float>::parameters()

int lti::harrisCorners::parameters::maximumCorners

Maximum number of corners to be detected.

Default value: 300

float lti::harrisCorners::parameters::scale

Scale factor in Harris auto-correlation.

Default value: 0.04f

float lti::harrisCorners::parameters::variance

Variance used for the Gaussian kernel used as window for the autocorrelation.

Default value : -1 (see lti::gaussKernel1D<float>::generate() for the meaning of this)

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The documentation for this class was generated from the following file:

• ltiHarrisCorners.h