ParticleFilter Class Reference

#include <ParticleFilter.h>

Inheritance diagram for ParticleFilter:

Public Member Functions
	ParticleFilter (int n=100, int szParticle=2)
void	InitBuffer ()
void	InitTarget (const Rect &target)
void	Propagate (const Size &imgSize)
void	Observe (const StrongClassifier *classifier, const IntegralImage *intImage)
void	Observe (const StrongClassifier *classifier, const IntegralImage *intImage, const Rect &detection, float detectionWeight)
void	ResampleWithBest ()
void	ResampleWithConfidence ()
void	DrawParticles (cv::Mat &img, const cv::Scalar &color) const
void	DrawParticlesWithConfidence (cv::Mat &img, const cv::Scalar &color) const
void	DrawTarget (cv::Mat &img, const cv::Scalar &color) const
const Rect &	GetTarget () const
void	SetTarget (const Rect &t)

Protected Member Functions
int	BinarSearch (float prob) const
void	InitParticles ()

Protected Attributes
const int	numParticles
int *	particles
const int	sizeParticle
float *	confidence
Rect	target
std::deque< Rect >	prevDets
std::default_random_engine	generator
std::normal_distribution< float >	gaussian
std::uniform_real_distribution< float >	resampler
int *	resampleBuffer

Detailed Description

A basic particle filter. It just propagates the particles and observe using the strong classifier's evaluate function. We leave the training to upper class.

This class doesn't support virtual function!!!!

Author

Zhengrong Wang.

Constructor & Destructor Documentation

ParticleFilter::ParticleFilter	(	int	n = 100,
		int	szParticle = 2
	)

This constructor doesn't initialize particles. Should call InitializeBuffer and InitializeTarget before actually using it.

Member Function Documentation

void ParticleFilter::InitBuffer

(

)

Initialize the buffer, mainly the particles, confidence, resample buffer.

void ParticleFilter::InitParticles ( )

protected

Initialize the particles around the target.

void ParticleFilter::InitTarget

(

const Rect &

target

)

Initialize the target, used in multiple targets tracking.

void ParticleFilter::Observe	(	const StrongClassifier *	classifier,
		const IntegralImage *	intImage
	)

Observe with classifier output confidence.

void ParticleFilter::Observe	(	const StrongClassifier *	classifier,
		const IntegralImage *	intImage,
		const Rect &	detection,
		float	detectionWeight
	)

Observe with classifier output confidence and associated detection.

void ParticleFilter::Propagate

(

const Size &

imgSize

)

Propagate the particles.

Parameters

imgSize

Is the particle still inside the image?

void ParticleFilter::ResampleWithBest

(

)

Resample directly around the best particle.

void ParticleFilter::ResampleWithConfidence

(

)

Resample with the confidence.

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

• include/ParticleFilter.h
• src/ParticleFilter.cpp