CudaHmaxFL Class Reference

Object recognition model inspired from Riesenhuber & Poggio's HMAX model. More...

#include <CUDA/CudaHmaxFL.H>

Inheritance diagram for CudaHmaxFL:

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Collaboration diagram for CudaHmaxFL:

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List of all members.

Public Member Functions
	CudaHmaxFL ()
	Default constructor. Need to call init() later.
	CudaHmaxFL (MemoryPolicy mp, int dev, const int nori, const std::vector< int > &spacess, const std::vector< int > &scaless, const int c1spaceol=2, const bool angleflag=true, const float s2t=1.0F, const float s2s=1.0F, const float gamma=0.3F, const float divstart=4.05F, const float divstep=-0.05F, const int fsmin=5, const int fsstep=2)
	Constructor.
void	init (MemoryPolicy mp, int dev, const int nori, const std::vector< int > &spacess, const std::vector< int > &scaless, const int c1spaceol=2, const bool angleflag=true, const float s2t=1.0F, const float s2s=1.0F, const float gamma=0.3F, const float divstart=4.05F, const float divstep=-0.05F, const int fsmin=5, const int fsstep=2)
	Initialization.
void	initFilters (const float gamma, const float divstart, const float divstep, const int fsmin, const int fsstep)
void	freeMem ()
	Free internal memory.
void	freeC1Patches ()
	~CudaHmaxFL ()
	Destructor.
void	getC2 (const CudaImage< float > &input, float **&c2Res)
	Compute C2 responses from an input image.
void	extractRandC1Patches (Image< float > *&posTrainingImages, int numPosTrainImages, std::vector< int > patchSizes, int nPatchesPerSize, int no)
	Randomly extract a set of C1Patches from positive training images.
void	setC1Patches (CudaImage< float > ***&patches, std::vector< int > patchSizes, int numPatchesPerSize)
	Set the c1patches that should be used.
void	readInC1Patches (std::string fileName)
void	writeOutC1Patches (std::string fileName)
std::vector< int >	getC1PatchSizes ()
int	getC1PatchesPerSize ()
CudaImage< float > ***&	getC1Patches ()
	Get the c1patches that are being used.
void	windowedPatchDistance (CudaImage< float > &images, int nimages, CudaImage< float > &patches, int npatches, CudaImage< float > &D, float sumSquaredPatch)
	Calculate the distance from a patch to an image.
Protected Attributes
int	nswb
	number of scales within a scale band
CudaImage< float > ***	c1Patches
	patches that should be compared in S2 activation c1Patches[patchSizes][patchesPerSize]
float **	sumPSq
std::vector< int >	c1PatchSizes
	Number of square patch sizes of c1Patches.
int	nC1PatchesPerSize
	Number of patches per patch size of c1Patches.

Detailed Description

Object recognition model inspired from Riesenhuber & Poggio's HMAX model.

See Riesenhuber & Poggio, Nature Neuroscience, 1999.

Definition at line 56 of file CudaHmaxFL.H.

Constructor & Destructor Documentation

CudaHmaxFL::CudaHmaxFL ( )

Default constructor. Need to call init() later.

Definition at line 65 of file CudaHmaxFL.C.

References CudaHmax::initialized.

Referenced by CudaHmaxFLSal::CudaHmaxFLSal().

CudaHmaxFL::CudaHmaxFL	(	MemoryPolicy	mp,
		int	dev,
		const int	nori,
		const std::vector< int > &	spacess,
		const std::vector< int > &	scaless,
		const int	c1spaceol = `2`,
		const bool	angleflag = `true`,
		const float	s2t = `1.0F`,
		const float	s2s = `1.0F`,
		const float	gamma = `0.3F`,
		const float	divstart = `4.05F`,
		const float	divstep = `-0.05F`,
		const int	fsmin = `5`,
		const int	fsstep = `2`
	)

Constructor.

Definition at line 69 of file CudaHmaxFL.C.

References init(), and CudaHmax::initialized.

CudaHmaxFL::~CudaHmaxFL ( )

Destructor.

Definition at line 138 of file CudaHmaxFL.C.

References freeMem().

Member Function Documentation

void CudaHmaxFL::extractRandC1Patches	(	Image< float > *&	posTrainingImages,
		int	numPosTrainImages,
		std::vector< int >	patchSizes,
		int	nPatchesPerSize,
		int	no
	)

Randomly extract a set of C1Patches from positive training images.

Reimplemented in CudaHmaxFLSal.

Definition at line 325 of file CudaHmaxFL.C.

References cudaCrop(), CudaImage< T >::getHeight(), CudaImage< T >::getWidth(), CudaImage< T >::resize(), setC1Patches(), Rectangle::tlbrI(), and ZEROS.

void CudaHmaxFL::freeMem ( )

Free internal memory.

Reimplemented from CudaHmax.

Definition at line 127 of file CudaHmaxFL.C.

References CudaHmax::initialized.

Referenced by ~CudaHmaxFL().

CudaImage< float > ***& CudaHmaxFL::getC1Patches ( )

Get the c1patches that are being used.

Definition at line 310 of file CudaHmaxFL.C.

References c1Patches.

void CudaHmaxFL::getC2	(	const CudaImage< float > &	input,
		float **&	c2Res
	)

Compute C2 responses from an input image.

Definition at line 435 of file CudaHmaxFL.C.

References c1Patches, c1PatchSizes, Timer::getSecs(), min(), CudaHmax::nsb, Timer::reset(), and windowedPatchDistance().

void CudaHmaxFL::init	(	MemoryPolicy	mp,
		int	dev,
		const int	nori,
		const std::vector< int > &	spacess,
		const std::vector< int > &	scaless,
		const int	c1spaceol = `2`,
		const bool	angleflag = `true`,
		const float	s2t = `1.0F`,
		const float	s2s = `1.0F`,
		const float	gamma = `0.3F`,
		const float	divstart = `4.05F`,
		const float	divstep = `-0.05F`,
		const int	fsmin = `5`,
		const int	fsstep = `2`
	)

Initialization.

Definition at line 80 of file CudaHmaxFL.C.

References c1Patches, max(), CudaHmax::nsb, and nswb.

Referenced by CudaHmaxFL().

void CudaHmaxFL::setC1Patches	(	CudaImage< float > ***&	patches,
		std::vector< int >	patchSizes,
		int	numPatchesPerSize
	)

Set the c1patches that should be used.

Definition at line 157 of file CudaHmaxFL.C.

References c1Patches, c1PatchSizes, CudaImage< T >::clear(), nC1PatchesPerSize, and NO_INIT.

Referenced by CudaHmaxFLSal::extractRandC1Patches(), and extractRandC1Patches().

void CudaHmaxFL::windowedPatchDistance	(	CudaImage< float > *&	images,
		int	nimages,
		CudaImage< float > *&	patches,
		int	npatches,
		CudaImage< float > &	D,
		float	sumSquaredPatch
	)