HessianDetector Class Reference

#include <HessianDetector.h>

List of all members.

Public Member Functions
	HessianDetector (APImage *i, int nrPoints=1000, CONVOLUTION_TYPE type=HD_BOX_FILTERS, int nrOctaves=1)
bool	detect ()
void	printPoints ()
void	printPoints (std::ostream &o)
void	dump ()
vector< vector< int > > *	getPoints ()
double	getMaxima (int x, int y)
int	getNrPoints ()
Private Member Functions
int	_getHessianDeterminant (int *pixelSumXX, int *pixelSumXY, int *pixelSumYY)
void	_calculateMaxDet (int i, int j)
void	_cutPointList (double average, int nrPoints)
double	_getScale (int kernelSize)
int	_convolutePixel (int *coordX, int *coordY, int *kernelSize)
bool	_boxFilterDetect ()
bool	_slidingWDetect ()
void	_insertToList (int *x, int *y)
Private Attributes
APImage *	image
int	nrPoints
int	nrOctaves
CONVOLUTION_TYPE	convolutionType
std::vector< vector< int > >	determinants
	0---> x | | v y
std::vector< vector< int > >	orderedList
std::vector< vector< double > >	maximas

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Constructor & Destructor Documentation

HessianDetector::HessianDetector (  APImage *  i, int  nrPoints = 1000, CONVOLUTION_TYPE  type = HD_BOX_FILTERS, int  nrOctaves = 1 )

Definition at line 29 of file HessianDetector.cpp. References convolutionType, determinants, APImage::getHeightBW(), APImage::getWidthBW(), image, celeste::max(), maximas, nrOctaves, and orderedList.

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Member Function Documentation

bool HessianDetector::_boxFilterDetect (   )  [private]

Non-maxima suppression if any determinant in the area around the pixel is greater than the pixel, suppress the current pixel. This can also be done in a loop. Definition at line 229 of file HessianDetector.cpp. References _calculateMaxDet(), _cutPointList(), cout, determinants, APImage::getHeightBW(), APImage::getWidthBW(), image, celeste::max(), and orderedList. Referenced by detect().

void HessianDetector::_calculateMaxDet (  int  x, int  y )  [private]

Each octave has 4 kernel sizes. Definition at line 339 of file HessianDetector.cpp. References _convolutePixel(), determinants, HD_MAX_OCTAVES, maximas, and nrOctaves. Referenced by _boxFilterDetect().

int HessianDetector::_convolutePixel (  int *  coordX, int *  coordY, int *  kernelSize )  [private]

Definition at line 396 of file HessianDetector.cpp. References _getHessianDeterminant(), APImage::getRegionSum(), and image. Referenced by _calculateMaxDet().

void HessianDetector::_cutPointList (  double  average, int  nrPoints )  [private]

Definition at line 308 of file HessianDetector.cpp. References cout, determinants, and orderedList. Referenced by _boxFilterDetect().

int HessianDetector::_getHessianDeterminant (  int *  pixelSumXX, int *  pixelSumXY, int *  pixelSumYY )  [private]

Definition at line 392 of file HessianDetector.cpp. References vigra_ext::pow(). Referenced by _convolutePixel().

double HessianDetector::_getScale (  int  kernelSize  )  [private]

Definition at line 690 of file HessianDetector.cpp.

void HessianDetector::_insertToList (  int *  x, int *  y )  [private]

Definition at line 598 of file HessianDetector.cpp. References determinants, and orderedList. Referenced by _slidingWDetect().

bool HessianDetector::_slidingWDetect (   )  [private]

if any determinant in the area around the pixel is greater than the pixel, suppress the current pixel This can also be done in a loop. Definition at line 66 of file HessianDetector.cpp. References _insertToList(), determinants, APImage::getHeight(), APImage::getHeightBW(), APImage::getPixel(), APImage::getWidth(), APImage::getWidthBW(), image, maximas, vigra_ext::pow(), hugin_utils::round(), and APImage::scale(). Referenced by detect().

bool HessianDetector::detect (   )

Definition at line 57 of file HessianDetector.cpp. References _boxFilterDetect(), _slidingWDetect(), and convolutionType. Referenced by main().

void HessianDetector::dump (   )

Definition at line 693 of file HessianDetector.cpp.

double HessianDetector::getMaxima (  int  x, int  y )

Definition at line 687 of file HessianDetector.cpp. References maximas. Referenced by Descriptor::_getMaxima().

int HessianDetector::getNrPoints (   )

Definition at line 684 of file HessianDetector.cpp.

vector< vector< int > > * HessianDetector::getPoints (   )

Definition at line 681 of file HessianDetector.cpp. Referenced by main().

void HessianDetector::printPoints (  std::ostream &  o  )

Definition at line 655 of file HessianDetector.cpp. References cout, and orderedList.

void HessianDetector::printPoints (   )

Definition at line 641 of file HessianDetector.cpp. References cout, APImage::drawCircle(), HD_INIT_KERNEL_SIZE, image, maximas, orderedList, and APImage::show().

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Member Data Documentation

CONVOLUTION_TYPE HessianDetector::convolutionType [private]

Definition at line 60 of file HessianDetector.h. Referenced by detect(), and HessianDetector().

std::vector<vector<int> > HessianDetector::determinants [private]

0---> x | | v y Definition at line 70 of file HessianDetector.h. Referenced by _boxFilterDetect(), _calculateMaxDet(), _cutPointList(), _insertToList(), _slidingWDetect(), and HessianDetector().

APImage* HessianDetector::image [private]

Definition at line 57 of file HessianDetector.h. Referenced by _boxFilterDetect(), _convolutePixel(), _slidingWDetect(), HessianDetector(), and printPoints().

std::vector<vector<double> > HessianDetector::maximas [private]

Definition at line 73 of file HessianDetector.h. Referenced by _calculateMaxDet(), _slidingWDetect(), getMaxima(), HessianDetector(), and printPoints().

int HessianDetector::nrOctaves [private]

Definition at line 59 of file HessianDetector.h. Referenced by _calculateMaxDet(), and HessianDetector().

int HessianDetector::nrPoints [private]

Definition at line 58 of file HessianDetector.h.

std::vector<vector<int> > HessianDetector::orderedList [private]

Definition at line 71 of file HessianDetector.h. Referenced by _boxFilterDetect(), _cutPointList(), _insertToList(), HessianDetector(), and printPoints().

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

• matchpoint/HessianDetector.h
• matchpoint/HessianDetector.cpp

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