Class CamShiftTracker [detects] and [matches] features over an image sequence. More...

Detailed Description

Class CamShiftTracker [detects] and [matches] features over an image sequence.

It uses camshift algorithm to track a given model image or interest features.

Definition at line 16 of file CamShiftTracking.hpp.

Inheritance diagram for jafar::gfm_v2::CamShiftTracker:

Public Types
typedef fdetect_v2::InterestFeature < fdetect_v2::FloatDescriptor >	Feature
typedef Feature::DescriptorType	Descriptor
typedef fdetect_v2::DetectionResult < Feature >	DR
typedef gfm_v2::MatchingResult < Feature >	MR
typedef gfm_v2::MatchSourceInfo < Feature >	MatchSourceInfo
typedef gfm_v2::DescriptorsBasedMatcher < Feature >	DescriptorsBasedMatcher
Public Member Functions
	CamShiftTracker (jafar::fdetect_v2::Detector< Feature > *detector, size_t ransac_required=7)
	constructor with parameters
void	initTracking (jafar::image::Image const &model_image, unsigned int id=geom::InterestPoint::NO_ID)
void	initTracking (DR &model_points, unsigned int id=geom::InterestPoint::NO_ID)
ublas::matrix< float >	nextImage (jafar::image::Image const &image_next, jafar::image::Image const &prior_mask, cv::RotatedRect *init_region=NULL, unsigned int id=geom::InterestPoint::NO_ID)
ublas::matrix< float >	nextImage (DR &observed_points, jafar::image::Image const &prior_mask, cv::RotatedRect *init_region=NULL, unsigned int id=geom::InterestPoint::NO_ID)
MR	result ()
	mtaching result populated each time you call nextImage
Private Member Functions
bool	is_valid_homography (const ublas::matrix< float > &h, double det_threshold)
Private Attributes
size_t	m_ransac_required
	ransac required
MR	m_result
	intermediate matching result

Constructor & Destructor Documentation

jafar::gfm_v2::CamShiftTracker::CamShiftTracker	(	jafar::fdetect_v2::Detector< Feature > *	detector,
		size_t	ransac_required = `7`
	)		`[inline]`

constructor with parameters

Parameters:

detector	interest features detector
ransac_required	nbr of points required to perform ransac for homography computing

Definition at line 31 of file CamShiftTracking.hpp.

void jafar::gfm_v2::CamShiftTracker::initTracking	(	jafar::image::Image const &	model_image,
		unsigned int	id = `geom::InterestPoint::NO_ID`
	)		`[inline]`

Parameters:

model_image	the first image of the sequence
id	the id for initial detection result

Definition at line 38 of file CamShiftTracking.hpp.

Referenced by initTracking().

void jafar::gfm_v2::CamShiftTracker::initTracking	(	DR &	model_points,
		unsigned int	id = `geom::InterestPoint::NO_ID`
	)		`[inline]`

Parameters:

model_points	the first detection result
id	the id for initial detection result

Definition at line 47 of file CamShiftTracking.hpp.

ublas::matrix<float> jafar::gfm_v2::CamShiftTracker::nextImage	(	jafar::image::Image const &	image_next,
		jafar::image::Image const &	prior_mask,
		cv::RotatedRect *	init_region = `NULL`,
		unsigned int	id = `geom::InterestPoint::NO_ID`
	)		`[inline]`

Parameters:

image_next	The next image of the sequence
prior_mask	The prior position of matched features. Set it to ones if no clue.
id	The id for this detection result

Returns:: the matching between the next image and the previous image (either initialized with initTracking or given by a previous call to this function)

Definition at line 60 of file CamShiftTracking.hpp.

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