Sparse point track structures

These classes and structures are responsible to store efficiently tracks of features. More...

Classes
class	bucket2d< T >
	Fast access to 2d points within a limited range. More...
struct	point2d
	Basic 2-D point, in float. More...
struct	tkeypoint
	A point integrated in the "tracks" structure. More...
struct	tframe
	A frame in the tracks structure. More...
struct	ttrack
	A ttrack is a set of tkeypoints showing the same physical point on successive frames. More...
class	tracks
	A structure for storing sparse tracks of points. More...
Functions
float	point2d::dist (const point2d &a)
bool	tkeypoint::track_is_longer (int l)
	return true if the point has been matched on at least 'l' frames.

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Detailed Description

These classes and structures are responsible to store efficiently tracks of features.

It can be seen as a sparse matrix, whose columns are frame and rows are tracks. These structures take care of efficient storage only. The actual feature detection and matching is done in Keypoint detection and tracking .

See class tracks for more details.

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Function Documentation

float point2d::dist

(

const point2d &

a

)

[inline, inherited]

Definition at line 262 of file tracks.h.

References point2d::u, and point2d::v.

Referenced by vobj_tracker::incremental_learning(), and vobj_tracker::verify().

bool tkeypoint::track_is_longer

(

int

l

)

[inline, inherited]

return true if the point has been matched on at least 'l' frames.

Definition at line 269 of file tracks.h.

References ttrack::length, and tkeypoint::track.

Referenced by get_correspondences(), and kpt_tracker::track_ncclk().