jafar::dseg::HierarchicalDirectSegmentsDetector Class Reference

This is the main class for detection segments in an image. More...

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Detailed Description

This is the main class for detection segments in an image.

It uses a Hierarchical approach.

Definition at line 16 of file HierarchicalDirectSegmentsDetector.hpp.

#include <HierarchicalDirectSegmentsDetector.hpp>

Inheritance diagram for jafar::dseg::HierarchicalDirectSegmentsDetector:

List of all members.

Public Member Functions
	HierarchicalDirectSegmentsDetector (kernel::IdFactory<> *_idMaker=0)
void	detectSegment (const jafar::image::Image &_image, const image::ConvexRoi *roiPtr, SegmentsSet &segmentStorage, SegmentDebug *_sdebug=0)
	Start detection of segments in an image.
void	detectSegment (PyramidSP *pyramid, const jafar::image::Image &_image, const image::ConvexRoi *roiPtr, SegmentsSet &segmentStorage, SegmentDebug *_sdebug=0)
PyramidSP *	computePyramid (const jafar::image::Image &_image)
Protected Member Functions
virtual void	detectedSegment (SegmentHypothesis *, DirectSegmentsDetectorBase::LoopDetectionContext *_context, GrowSegmentContext &)
	Define the number of levels of the pyramid (minimum is 1, default is 3).
virtual bool	isInASegment (DirectSegmentsDetectorBase::LoopDetectionContext *_context, int _x, int _y)
Private Member Functions
void	detectSegmentAtScale (SegmentHypothesis *segHyp, DirectSegmentsDetectorBase::LoopDetectionContext *_context, int level)
	Detect segment at a given scale using an hypothesis coming from a different level.
SegmentHypothesis *	findSegHyp (const jblas::vec2 &_center, double angle, std::vector< GrowSegmentContext > &hyps, int _level, DirectSegmentsDetectorBase::LoopDetectionContext *_context, double *grads, double scaledMinLength2)
	Find a segment hypothesis around _center .
void	updateIntervals (SegmentHypothesis *_segHyp, const Interval &_currentInterval, std::list< Interval > &_intervals, int _level, const jblas::vec2 &_center, const jblas::vec2 &_dir, double _scaledMinLength)
Private Attributes
PyramidSP *	m_pyramidSP
int	m_topToBottomScale

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Member Function Documentation

void jafar::dseg::HierarchicalDirectSegmentsDetector::detectSegment	(	const jafar::image::Image &	_image,
		const image::ConvexRoi *	roiPtr,
		SegmentsSet &	segmentStorage,
		SegmentDebug *	_sdebug = 0
	)

Start detection of segments in an image.

Parameters:

_image	image on which to makes the detection
segmentStorage	storage that will be filled with newly extracted segment, if there are segments in the storage before calling this function, then the dector will avoid segment detection on the already existing segments (the detection can be called after tracking, and tracked segments won't be detected again).
SegmentDebug	collect some debug information

void jafar::dseg::HierarchicalDirectSegmentsDetector::detectSegmentAtScale	(	SegmentHypothesis *	segHyp,
		DirectSegmentsDetectorBase::LoopDetectionContext *	_context,
		int	level
	)		[private]

Detect segment at a given scale using an hypothesis coming from a different level.

Parameters:

segHyp	is the hypothesis at level level - 1
level	is the pyramid level

This function will repeatively called itself until level == 0

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

• modules/dseg/include/dseg/HierarchicalDirectSegmentsDetector.hpp