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Gan_LineFeature Struct Reference
[Feature Detection]

2D line feature structure. More...

#include <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_fpoint
 array of points attached to this line

unsigned npoints
 number of points attached to this line


Detailed Description

2D line feature structure.


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.


The documentation for this struct was generated from the following file:
Generated on Mon Oct 13 16:14:46 2003 by doxygen1.3-rc1