Gan_LineFeature Struct Reference
[Feature Detection]

2D line feature structure. More...

#include <gandalf/vision/line_feature.h>

List of all members.

Public Attributes
unsigned	r1
	row/column coordinates in coordinate frame of 2D feature array
unsigned	c1
	row/column coordinates in coordinate frame of 2D feature array
unsigned	r2
	row/column coordinates in coordinate frame of 2D feature array
unsigned	c2
	row/column coordinates in coordinate frame of 2D feature array
Gan_Vector2_f	p1
	endpoints of line
Gan_Vector2_f	p2
	endpoints of line
float	strength
	line feature strength/contrast value
Gan_Vector3_f	l
	line parameters a*x + b*y + c = 0 scaled so that a^2 + b^2 = 1
Gan_SquMatrix22_f	N
	Covariance/inverse covariance of line midpoint position.
Gan_SquMatrix22_f	Ni
	Covariance/inverse covariance of line midpoint position.
int	status
	fields for user program to define
int	index
Gan_Vector2_f *	point
	array of points attached to this line
unsigned	npoints
	number of points attached to this line

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Detailed Description

2D line feature structure.

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Member Data Documentation

Gan_SquMatrix22_f Gan_LineFeature::N

Covariance/inverse covariance of line midpoint position. covariance and inverse covariance for canonical line parameters in , with system centred on midpoint of line with positive axis along the line towards endpoint, and positive axis 90 degrees clockwise/anticlockwise from axis for positive up/down respectively.

Gan_SquMatrix22_f Gan_LineFeature::Ni

Covariance/inverse covariance of line midpoint position. covariance and inverse covariance for canonical line parameters in , with system centred on midpoint of line with positive axis along the line towards endpoint, and positive axis 90 degrees clockwise/anticlockwise from axis for positive up/down respectively.

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

• gandalf/vision/line_feature.h

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