de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE

Class MTBLengthEnergyFW2D2PNonPDE

java.lang.Object

de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBGenericEnergyNonPDE

de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBLengthEnergyNonPDE

de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBLengthEnergyFWNonPDE

de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBLengthEnergyFW2DNonPDE

de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBLengthEnergyFW2D2PNonPDE

@ALDParametrizedClass
public class MTBLengthEnergyFW2D2PNonPDE
extends MTBLengthEnergyFW2DNonPDE

Implements the (standard) length energy using forward differences for 2D images and a two phase level set function. Length is approximated using forward differences of the heaviside function

Field Summary

Fields

Modifier and Type	Field and Description
private double	SQRT_2

Fields inherited from class de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBLengthEnergyNonPDE

doNormalization, FLAG_LENGTH, mu, scaleFactor

Fields inherited from class de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBGenericEnergyNonPDE

debug, name

Constructor Summary

Constructors

Constructor and Description
MTBLengthEnergyFW2D2PNonPDE() Constructor
MTBLengthEnergyFW2D2PNonPDE(double mu) Constructor

Method Summary

Modifier and Type	Method and Description
protected double	gradMagHeaviside(double a, double b, double c) calculate the gradient magnitude of the foreward difference of the heavyside function corresponding to the level set for one pixel

Methods inherited from class de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBLengthEnergyFW2DNonPDE

deltaE, E, E

Methods inherited from class de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBLengthEnergyFWNonPDE

createEnergy, init

Methods inherited from class de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBLengthEnergyNonPDE

setScaleFactor, toString

Methods inherited from class de.unihalle.informatik.MiToBo.segmentation.levelset.nonPDE.MTBGenericEnergyNonPDE

deltaE, estimateParams, getNewIndent, print, setDebug, updateParams, updateParams

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

SQRT_2

private final double SQRT_2

Constructor Detail

MTBLengthEnergyFW2D2PNonPDE

public MTBLengthEnergyFW2D2PNonPDE(double mu)

Constructor

Parameters:

mu - weight of the length term

MTBLengthEnergyFW2D2PNonPDE

public MTBLengthEnergyFW2D2PNonPDE()

Constructor

Method Detail

gradMagHeaviside

protected double gradMagHeaviside(double a,
                                  double b,
                                  double c)

calculate the gradient magnitude of the foreward difference of the heavyside function corresponding to the level set for one pixel

Specified by:

gradMagHeaviside in class MTBLengthEnergyFW2DNonPDE

Parameters:

a - heaviside functtion at (x,y,z)

b - heaviside functtion at (x+1,y,z)

c - heaviside functtion at (x,y+1,z)

Returns:

gradient magnitude