usSignalProcessing Class Reference

#include </home/soft/ustk/ustk-web-script/ustk-code/modules/ustk_elastography/include/visp3/ustk_elastography/usSignalProcessing.h>

Public Member Functions
	usSignalProcessing ()
virtual	~usSignalProcessing ()

Static Public Member Functions
static vpMatrix	GaussianFilter (int height, int width, double sigma)
static vpMatrix	getXGradient (const usImageRF2D< short > &image)
static vpMatrix	getYGradient (const usImageRF2D< short int > &image)
static vpMatrix	Difference (const usImageRF2D< short int > &A, const usImageRF2D< short int > &B)
static vpMatrix	BilinearInterpolation (vpMatrix In, uint newW, uint newH)
static vpMatrix	HadamardProd (vpMatrix matrix1, vpMatrix matrix2)

Detailed Description

Definition at line 69 of file usSignalProcessing.h.

Constructor & Destructor Documentation

usSignalProcessing()

usSignalProcessing::usSignalProcessing

(

)

Constructor.

usSignalProcessing::usSignalProcessing Constructor

Definition at line 40 of file usSignalProcessing.cpp.

~usSignalProcessing()

usSignalProcessing::~usSignalProcessing ( )

virtual

Virtual destructor.

usSignalProcessing::~usSignalProcessing Destructor - void

Definition at line 45 of file usSignalProcessing.cpp.

Member Function Documentation

BilinearInterpolation()

vpMatrix usSignalProcessing::BilinearInterpolation ( vpMatrix  In, uint  newW, uint  newH  )

static

Bilinear Interpolation.

Performs a bilinear interpolation on matrix In, to produce an output matrix of size (newH,newW)

Parameters

In	Input matrix to interpolate.
newW	Output matrix width.
newH	Output matrix height.

Returns

The resulting matrix of the interpolation.

Definition at line 152 of file usSignalProcessing.cpp.

Referenced by usElastography::run().

Difference()

vpMatrix usSignalProcessing::Difference ( const usImageRF2D< short int > &  A, const usImageRF2D< short int > &  B  )

static

Computes the difference between 2 matrix (value by value) The output matrix O is defined as O[i][j] = A[i][j] - B[i][j] for every component of the matrix. A and B must have the same size.

Parameters

A	First input matrix.
B	Second input matrix.

Returns

The difference matrix.

Definition at line 130 of file usSignalProcessing.cpp.

References usImageRF2D< Type >::getHeight(), and usImageRF2D< Type >::getWidth().

Referenced by usElastography::run().

GaussianFilter()

vpMatrix usSignalProcessing::GaussianFilter ( int  height, int  width, double  sigma  )

static

Gaussian Kernel generator.

Gaussian filter kernel generator.

Parameters

height	Gaussian kernel height.
width	Gaussian kernel width.
sigma	Standard deviation of the gaussian function.

Returns

The gaussian filter kernel.

Definition at line 56 of file usSignalProcessing.cpp.

Referenced by usElastography::run().

getXGradient()

vpMatrix usSignalProcessing::getXGradient ( const usImageRF2D< short > &  image )

static

Computation of gradients.

Computes a gradient filter on a RF image, along every row. The filter kernel is : [-0.5, 0, 0.5]

Parameters

image

RF image to apply the X gradient filter on.

Returns

The output of the X gradient filter.

Definition at line 80 of file usSignalProcessing.cpp.

References usImageRF2D< Type >::getHeight(), and usImageRF2D< Type >::getWidth().

Referenced by usElastography::run().

getYGradient()

vpMatrix usSignalProcessing::getYGradient ( const usImageRF2D< short int > &  image )

static

Computes a gradient filter on a RF image, along every row. The filter kernel is the transpose of : [-0.5, 0, 0.5]

Parameters

image

RF image to apply the Y gradient filter on.

Returns

The output of the Y gradient filter.

Definition at line 104 of file usSignalProcessing.cpp.

References usImageRF2D< Type >::getHeight(), and usImageRF2D< Type >::getWidth().

Referenced by usElastography::run().

HadamardProd()

vpMatrix usSignalProcessing::HadamardProd ( vpMatrix  matrix1, vpMatrix  matrix2  )

static

Element-wise product.

Performs the Hadamar product between 2 input matrices. matrix1 and matrix2 must have the same size.

Parameters

matrix1	First input matrix to multiply.
matrix2	Second input matrix to multiply.

Returns

The resulting matrix of the product.

Definition at line 188 of file usSignalProcessing.cpp.

Referenced by usElastography::run().