Data Fields

feature Struct Reference

Structure to represent an affine invariant image feature. More...

#include <imgfeatures.h>

Data Fields

double x
 x coord
double y
 y coord
double a
 Oxford-type affine region parameter.
double b
 Oxford-type affine region parameter.
double c
 Oxford-type affine region parameter.
double scl
 scale of a Lowe-style feature
double ori
 orientation of a Lowe-style feature
int d
 descriptor length
double descr [FEATURE_MAX_D]
 descriptor
int type
 feature type, OXFD or LOWE
int category
 all-purpose feature category
struct featurefwd_match
 matching feature from forward image
struct featurebck_match
 matching feature from backmward image
struct featuremdl_match
 matching feature from model
CvPoint2D64f img_pt
 location in image
CvPoint2D64f mdl_pt
 location in model
void * feature_data
 user-definable data

Detailed Description

Structure to represent an affine invariant image feature.

The fields x, y, a, b, c represent the affine region around the feature:

a(x-u)(x-u) + 2b(x-u)(y-v) + c(y-v)(y-v) = 1


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