kpt_tracker Class Reference
[Keypoint detection and tracking]

Scale-space feature tracker. More...

#include <kpttracker.h>

Inheritance diagram for kpt_tracker:

Collaboration diagram for kpt_tracker:

List of all members.

Classes

class recycler_t

Public Member Functions

kpt_tracker (int width, int height, int levels, int max_motion, bool glContext=false, pyr_keypoint::pyr_keypoint_factory_t *kf=0, pyr_frame::pyr_frame_factory_t *ff=0, pyr_track::pyr_track_factory_t *tf=0)

virtual ~kpt_tracker ()

bool load_from_db (sqlite3 *db)

bool load_from_db (const char *dbfile)

bool load_tree (sqlite3 *db)

bool load_tree (const char *fn)

bool load_clusters (sqlite3 *db)

bool load_clusters (const char *fn)

void set_size (int width, int height, int levels, int max_motion)

virtual pyr_frame * process_frame (IplImage *im)

Store a new frame, detect features, and match them with previous frame.

virtual pyr_frame * process_frame_pipeline (IplImage *im)

Pipelined version of process_frame.

pyr_frame * add_frame (IplImage *im)

void traverse_tree (pyr_frame *frame)

void detect_keypoints (pyr_frame *f)

void track_ncclk (pyr_frame *f, pyr_frame *lf)

void clear ()

remove all frames, all keypoints, and all tracks.

pyr_keypoint * best_match (pyr_keypoint *templ, tracks::keypoint_frame_iterator it)

Public Attributes

pyr_yape * detector

keypoint * points

kmean_tree::node_t * tree

id_cluster_collection * id_clusters

int nb_points

int max_motion

int nb_levels

int patch_size

float ncc_threshold

float ncc_threshold_high

Protected Member Functions

pyr_frame * create_frame (IplImage *im)

Protected Attributes

pyr_frame * pipeline_stage1

Friends

class pyr_keypoint

Detailed Description

Scale-space feature tracker.

Examples:: simpletrack.cpp.

Definition at line 158 of file kpttracker.h.

Constructor & Destructor Documentation

kpt_tracker::kpt_tracker	(	int	width,
		int	height,
		int	levels,
		int	max_motion,
		bool	glContext = `false`,
		pyr_keypoint::pyr_keypoint_factory_t *	kf = `0`,
		pyr_frame::pyr_frame_factory_t *	ff = `0`,
		pyr_track::pyr_track_factory_t *	tf = `0`
	)

Definition at line 96 of file kpttracker.cpp.

References detector, id_clusters, license(), ncc_threshold, ncc_threshold_high, patch_tagger::patch_size, patch_size, pipeline_stage1, points, yape::set_radius(), and tree.

kpt_tracker::~kpt_tracker ( ) [virtual]

Definition at line 63 of file kpttracker.cpp.

References clear(), detector, id_clusters, points, and tree.

Member Function Documentation

pyr_frame * kpt_tracker::add_frame ( IplImage * im )

Definition at line 269 of file kpttracker.cpp.

References pyr_frame::append_to(), PyrImage::build(), create_frame(), and pyr_frame::pyr.

Referenced by pic_randomizer::detect_kpts().

pyr_keypoint * kpt_tracker::best_match	(	pyr_keypoint *	templ,
		tracks::keypoint_frame_iterator	it
	)

Definition at line 920 of file kpttracker.cpp.

References cmp_ncc(), ncc_threshold, and ncc_threshold_high.

Referenced by track_ncclk().

void kpt_tracker::clear ( )

remove all frames, all keypoints, and all tracks.

Definition at line 77 of file kpttracker.cpp.

References tracks::frames, and tracks::remove_unmatched_tracks().

Referenced by ~kpt_tracker().

pyr_frame * kpt_tracker::create_frame ( IplImage * im ) [protected]

Definition at line 277 of file kpttracker.cpp.

References tracks::get_nth_frame(), PyrImage::images, nb_levels, pyr_frame::pyr, and tracks::tframe_factory.

Referenced by add_frame(), process_frame(), vobj_tracker::process_frame_pipeline(), and process_frame_pipeline().

void kpt_tracker::detect_keypoints ( pyr_frame * f )

bool kpt_tracker::load_clusters ( const char * fn )

Definition at line 187 of file kpttracker.cpp.

References id_clusters, id_cluster_collection::load(), and id_cluster_collection::QUERY_NORMALIZED_FREQ.

bool kpt_tracker::load_clusters ( sqlite3 * db )

Definition at line 153 of file kpttracker.cpp.

References id_clusters, id_cluster_collection::load(), and id_cluster_collection::QUERY_NORMALIZED_FREQ.

Referenced by load_from_db().

bool kpt_tracker::load_from_db ( const char * dbfile )

Definition at line 163 of file kpttracker.cpp.

References load_from_db().

bool kpt_tracker::load_from_db ( sqlite3 * db )

Examples:: simpletrack.cpp.

Definition at line 173 of file kpttracker.cpp.

References load_clusters(), and load_tree().

Referenced by load_from_db(), and main().

bool kpt_tracker::load_tree ( const char * fn )

Definition at line 178 of file kpttracker.cpp.

References kmean_tree::load(), and tree.

bool kpt_tracker::load_tree ( sqlite3 * db )

Definition at line 140 of file kpttracker.cpp.

References kmean_tree::load(), and tree.

Referenced by pic_randomizer::detect_kpts(), and load_from_db().

pyr_frame * kpt_tracker::process_frame ( IplImage * im ) [virtual]

Store a new frame, detect features, and match them with previous frame.

This method takes care of releasing im.

Reimplemented in vobj_tracker.

Examples:: simpletrack.cpp.

Definition at line 243 of file kpttracker.cpp.

References pyr_frame::append_to(), PyrImage::build(), create_frame(), detect_keypoints(), tracks::get_nth_frame(), TaskTimer::popTask(), TaskTimer::pushTask(), pyr_frame::pyr, track_ncclk(), and traverse_tree().

Referenced by main(), and VSView::timerEvent().

pyr_frame * kpt_tracker::process_frame_pipeline ( IplImage * im ) [virtual]

Pipelined version of process_frame.

Returns 0 on the first call. This method takes care of releasing im.

Reimplemented in vobj_tracker.

Definition at line 213 of file kpttracker.cpp.

References pyr_frame::append_to(), PyrImage::build(), create_frame(), detect_keypoints(), tracks::get_nth_frame(), pipeline_stage1, pyr_frame::pyr, track_ncclk(), and traverse_tree().

Referenced by VSView::timerEvent().

void kpt_tracker::set_size	(	int	width,
		int	height,
		int	levels,
		int	max_motion
	)

Definition at line 201 of file kpttracker.cpp.

References detector, and nb_levels.

Referenced by pic_randomizer::detect_kpts().

void kpt_tracker::track_ncclk	(	pyr_frame *	f,
		pyr_frame *	lf
	)

Definition at line 454 of file kpttracker.cpp.

References bucket2d< T >::begin(), best_match(), pyr_keypoint::cid, bucket2d< T >::closest_point(), cmp_ncc(), pyr_keypoint::descriptor, pyr_keypoint::dispose(), pyr_keypoint::id, tkeypoint::matches, max_motion, MAX_TRACK_FT, myCalcOpticalFlowPyrLK(), PyrImage::nbLev, ncc_threshold, mlist_elem< T >::next, patch_tagger::descriptor::orientation, patch_size, tframe::points, TaskTimer::popTask(), mlist_elem< T >::prev, TaskTimer::pushTask(), pyr_frame::pyr, pyr_keypoint::scale, pyr_keypoint::score, bucket2d< T >::search(), pyr_keypoint::set(), tracks::set_match(), tkeypoint::track, tkeypoint::track_is_longer(), tkeypoint::track_length(), pyr_frame::tracker, point2d::u, tracks::unset_match(), and point2d::v.

Referenced by process_frame(), vobj_tracker::process_frame_pipeline(), and process_frame_pipeline().

void kpt_tracker::traverse_tree ( pyr_frame * frame )

Definition at line 718 of file kpttracker.cpp.

References patch_tagger::descriptor::array(), bucket2d< T >::begin(), kmean_tree::descriptor_t::descriptor, pyr_keypoint::descriptor, kmean_tree::node_t::get_id(), pyr_keypoint::id, pyr_keypoint::node, tframe::points, TaskTimer::popTask(), TaskTimer::pushTask(), and tree.

Referenced by pic_randomizer::detect_kpts(), process_frame(), vobj_tracker::process_frame_pipeline(), and process_frame_pipeline().

Friends And Related Function Documentation

friend class pyr_keypoint [friend]

Definition at line 260 of file kpttracker.h.

Member Data Documentation

pyr_yape* kpt_tracker::detector

Definition at line 200 of file kpttracker.h.

Referenced by detect_keypoints(), kpt_tracker(), set_size(), and ~kpt_tracker().

id_cluster_collection* kpt_tracker::id_clusters

Definition at line 217 of file kpttracker.h.

Referenced by init_query_with_frame(), kpt_tracker(), load_clusters(), pyr_track::point_added(), update_query_with_frame(), and ~kpt_tracker().

int kpt_tracker::max_motion

Definition at line 220 of file kpttracker.h.

Referenced by track_ncclk().

int kpt_tracker::nb_levels

Definition at line 221 of file kpttracker.h.

Referenced by create_frame(), and set_size().

int kpt_tracker::nb_points

Definition at line 219 of file kpttracker.h.

Referenced by detect_keypoints().

float kpt_tracker::ncc_threshold

Definition at line 223 of file kpttracker.h.

Referenced by best_match(), kpt_tracker(), and track_ncclk().

float kpt_tracker::ncc_threshold_high

Definition at line 223 of file kpttracker.h.

Referenced by best_match(), and kpt_tracker().

int kpt_tracker::patch_size

Definition at line 222 of file kpttracker.h.

Referenced by detect_keypoints(), kpt_tracker(), and track_ncclk().

pyr_frame* kpt_tracker::pipeline_stage1 [protected]

Definition at line 263 of file kpttracker.h.

Referenced by kpt_tracker(), vobj_tracker::process_frame_pipeline(), and process_frame_pipeline().

keypoint* kpt_tracker::points

Definition at line 201 of file kpttracker.h.

Referenced by detect_keypoints(), kpt_tracker(), and ~kpt_tracker().

kmean_tree::node_t* kpt_tracker::tree

Definition at line 216 of file kpttracker.h.

Referenced by pic_randomizer::group_ids(), kpt_tracker(), load_tree(), traverse_tree(), and ~kpt_tracker().

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

polyora/kpttracker.h
polyora/kpttracker.cpp


Classes
class	recycler_t
Public Member Functions
	kpt_tracker (int width, int height, int levels, int max_motion, bool glContext=false, pyr_keypoint::pyr_keypoint_factory_t kf=0, pyr_frame::pyr_frame_factory_t ff=0, pyr_track::pyr_track_factory_t *tf=0)
virtual	~kpt_tracker ()
bool	load_from_db (sqlite3 *db)
bool	load_from_db (const char *dbfile)
bool	load_tree (sqlite3 *db)
bool	load_tree (const char *fn)
bool	load_clusters (sqlite3 *db)
bool	load_clusters (const char *fn)
void	set_size (int width, int height, int levels, int max_motion)
virtual pyr_frame *	process_frame (IplImage *im)
	Store a new frame, detect features, and match them with previous frame.
virtual pyr_frame *	process_frame_pipeline (IplImage *im)
	Pipelined version of process_frame.
pyr_frame *	add_frame (IplImage *im)
void	traverse_tree (pyr_frame *frame)
void	detect_keypoints (pyr_frame *f)
void	track_ncclk (pyr_frame f, pyr_frame lf)
void	clear ()
	remove all frames, all keypoints, and all tracks.
pyr_keypoint *	best_match (pyr_keypoint *templ, tracks::keypoint_frame_iterator it)
Public Attributes
pyr_yape *	detector
keypoint *	points
kmean_tree::node_t *	tree
id_cluster_collection *	id_clusters
int	nb_points
int	max_motion
int	nb_levels
int	patch_size
float	ncc_threshold
float	ncc_threshold_high
Protected Member Functions
pyr_frame *	create_frame (IplImage *im)
Protected Attributes
pyr_frame *	pipeline_stage1
Friends
class	pyr_keypoint

kpt_tracker Class Reference [Keypoint detection and tracking]

Classes

Public Member Functions

Public Attributes

Protected Member Functions