RansacMultiFeatureSetMatcher Class Reference

#include <RansacMultiFeatureSetMatcher.h>

Inheritance diagram for RansacMultiFeatureSetMatcher:
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List of all members.

Public Member Functions

virtual double matchSets (const std::vector< InterestPoint * > &reference, const std::vector< InterestPoint * > &data, OrientedPoint2D &transformation, std::vector< std::pair< InterestPoint *, InterestPoint * > > &correspondences) const
 RansacMultiFeatureSetMatcher (double acceptanceThreshold, double successProbability, double inlierProbability, double distanceThreshold, double rigidityThreshold, bool adaptive=false)

Detailed Description

Representation of the RANSAC algorithm for feature matching. The class represents the RANSAC algorithm for matching two different feature sets. The matching result is an Euclidean transformation (rotation + translation) encoded as a point in $ \mathcal{SO}(2) $. The algorithm uses the Threshold strategy to obtain the possible correspondences from the features' descriptors. The main difference with the Nearest Neighobour is the increased complexity (reduced inlier probability) and the increased accuracy especially in environment with very repetitive structures.

Author:
Gian Diego Tipaldi

Definition at line 42 of file RansacMultiFeatureSetMatcher.h.


Constructor & Destructor Documentation

RansacMultiFeatureSetMatcher::RansacMultiFeatureSetMatcher ( double  acceptanceThreshold,
double  successProbability,
double  inlierProbability,
double  distanceThreshold,
double  rigidityThreshold,
bool  adaptive = false 
)

Constructor. Constructs and initializes the RANSAC algorithm.

Parameters:
acceptanceThreshold The maximum distance (in meters) for a point to be considered in the inlier set.
successProbability The probability of finding a correct match if exists.
inlierProbability The probability of a generic correspondence to be an inlier.
distanceThreshold The maximum distance (dimensionless) for two descriptors to be considered as a valid match. This threshold depends on the actual distance employed.
rigidityThreshold The maximum value (in meters) of difference between the relative distance of two interest points. This implements a rigidity check in the RANSAC hypothesis generation.
adaptive The flag to set the adaptive strategy to compute the number of RANSAC iterations (EXPERIMENTAL!!!).

Definition at line 8 of file RansacMultiFeatureSetMatcher.cpp.


Member Function Documentation

double RansacMultiFeatureSetMatcher::matchSets ( const std::vector< InterestPoint * > &  reference,
const std::vector< InterestPoint * > &  data,
OrientedPoint2D transformation,
std::vector< std::pair< InterestPoint *, InterestPoint * > > &  correspondences 
) const [virtual]

Matches two features sets, returning the matching error and the transformation. It also returns the set of corresponding inlier points.

Returns:
The matching error.
Parameters:
reference The reference feature set. It is used as reference frame for the transformation.
data The feature set to match.
transformation The restulting transformation. It is used to register the points in data to the points in reference.
correspondences The set of corresponding inlier points. Each individual correspondence is in the format (reference, data).

Reimplemented from RansacFeatureSetMatcher.

Definition at line 14 of file RansacMultiFeatureSetMatcher.cpp.


The documentation for this class was generated from the following files:
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flirtlib
Author(s): Bhaskara Marthi, Gian Diego Tipaldi
autogenerated on Fri Jan 11 11:15:48 2013