boofcv.alg.geo.robust

Class DistanceAffine2DSq

java.lang.Object

boofcv.alg.geo.robust.DistanceAffine2DSq

All Implemented Interfaces:

DistanceFromModel<Affine2D_F64,AssociatedPair>

public class DistanceAffine2DSq
extends java.lang.Object
implements DistanceFromModel<Affine2D_F64,AssociatedPair>

Applies an affine transformation to the associated pair and computes the euclidean distance squared between their locations. This reduces computations by avoiding the square root functions, which is computationally expensive. While both this error metric and euclidean distance have the same minimum, this exaggerates the magnitude of outliers. The transform is applied to the "keyLoc".

Constructor Summary

Constructors

Constructor and Description
DistanceAffine2DSq()

Method Summary

Modifier and Type	Method and Description
double	computeDistance(AssociatedPair pt) Computes the distance the point is from the model.
void	computeDistance(java.util.List<AssociatedPair> points, double[] distance) Computes the distance a set of points is from the model and saves the results in the provided array.
void	setModel(Affine2D_F64 model) Sets the model parameters.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DistanceAffine2DSq

public DistanceAffine2DSq()

Method Detail

setModel

public void setModel(Affine2D_F64 model)

Description copied from interface: DistanceFromModel

Sets the model parameters.

Specified by:

setModel in interface DistanceFromModel<Affine2D_F64,AssociatedPair>

Parameters:

model - Model parameters.

computeDistance

public double computeDistance(AssociatedPair pt)

Description copied from interface: DistanceFromModel

Computes the distance the point is from the model.

Specified by:

computeDistance in interface DistanceFromModel<Affine2D_F64,AssociatedPair>

Parameters:

pt - Point being evaluated. Not modified.

Returns:

Distance the point is from the model.

computeDistance

public void computeDistance(java.util.List<AssociatedPair> points,
                            double[] distance)

Description copied from interface: DistanceFromModel

Computes the distance a set of points is from the model and saves the results in the provided array.

Specified by:

computeDistance in interface DistanceFromModel<Affine2D_F64,AssociatedPair>

Parameters:

points - Set of points which are to be evaluated.

distance - Where model distance is stored.