Package org.opencv.video
Class VariationalRefinement
java.lang.Object
org.opencv.core.Algorithm
org.opencv.video.DenseOpticalFlow
org.opencv.video.VariationalRefinement
Variational optical flow refinement
This class implements variational refinement of the input flow field, i.e.
it uses input flow to initialize the minimization of the following functional:
\(E(U) = \int_{\Omega} \delta \Psi(E_I) + \gamma \Psi(E_G) + \alpha \Psi(E_S) \),
where \(E_I,E_G,E_S\) are color constancy, gradient constancy and smoothness terms
respectively. \(\Psi(s^2)=\sqrt{s^2+\epsilon^2}\) is a robust penalizer to limit the
influence of outliers. A complete formulation and a description of the minimization
procedure can be found in CITE: Brox2004
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Field Summary
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic VariationalRefinement
__fromPtr__
(long addr) void
REF: calc function overload to handle separate horizontal (u) and vertical (v) flow components (to avoid extra splits/merges)static VariationalRefinement
create()
Creates an instance of VariationalRefinementprotected void
finalize()
float
getAlpha()
Weight of the smoothness term SEE: setAlphafloat
getDelta()
Weight of the color constancy term SEE: setDeltafloat
Norm value shift for robust penalizer SEE: setEpsilonint
Number of outer (fixed-point) iterations in the minimization procedure.float
getGamma()
Weight of the gradient constancy term SEE: setGammafloat
getOmega()
Relaxation factor in SOR SEE: setOmegaint
Number of inner successive over-relaxation (SOR) iterations in the minimization procedure to solve the respective linear system.void
setAlpha
(float val) getAlpha SEE: getAlphavoid
setDelta
(float val) getDelta SEE: getDeltavoid
setEpsilon
(float val) getEpsilon SEE: getEpsilonvoid
setFixedPointIterations
(int val) getFixedPointIterations SEE: getFixedPointIterationsvoid
setGamma
(float val) getGamma SEE: getGammavoid
setOmega
(float val) getOmega SEE: getOmegavoid
setSorIterations
(int val) getSorIterations SEE: getSorIterationsMethods inherited from class org.opencv.video.DenseOpticalFlow
calc, collectGarbage
Methods inherited from class org.opencv.core.Algorithm
clear, empty, getDefaultName, getNativeObjAddr, save
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Constructor Details
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VariationalRefinement
protected VariationalRefinement(long addr)
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Method Details
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__fromPtr__
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calcUV
REF: calc function overload to handle separate horizontal (u) and vertical (v) flow components (to avoid extra splits/merges)- Parameters:
I0
- automatically generatedI1
- automatically generatedflow_u
- automatically generatedflow_v
- automatically generated
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getFixedPointIterations
public int getFixedPointIterations()Number of outer (fixed-point) iterations in the minimization procedure. SEE: setFixedPointIterations- Returns:
- automatically generated
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setFixedPointIterations
public void setFixedPointIterations(int val) getFixedPointIterations SEE: getFixedPointIterations- Parameters:
val
- automatically generated
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getSorIterations
public int getSorIterations()Number of inner successive over-relaxation (SOR) iterations in the minimization procedure to solve the respective linear system. SEE: setSorIterations- Returns:
- automatically generated
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setSorIterations
public void setSorIterations(int val) getSorIterations SEE: getSorIterations- Parameters:
val
- automatically generated
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getOmega
public float getOmega()Relaxation factor in SOR SEE: setOmega- Returns:
- automatically generated
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setOmega
public void setOmega(float val) getOmega SEE: getOmega- Parameters:
val
- automatically generated
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getAlpha
public float getAlpha()Weight of the smoothness term SEE: setAlpha- Returns:
- automatically generated
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setAlpha
public void setAlpha(float val) getAlpha SEE: getAlpha- Parameters:
val
- automatically generated
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getDelta
public float getDelta()Weight of the color constancy term SEE: setDelta- Returns:
- automatically generated
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setDelta
public void setDelta(float val) getDelta SEE: getDelta- Parameters:
val
- automatically generated
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getGamma
public float getGamma()Weight of the gradient constancy term SEE: setGamma- Returns:
- automatically generated
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setGamma
public void setGamma(float val) getGamma SEE: getGamma- Parameters:
val
- automatically generated
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getEpsilon
public float getEpsilon()Norm value shift for robust penalizer SEE: setEpsilon- Returns:
- automatically generated
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setEpsilon
public void setEpsilon(float val) getEpsilon SEE: getEpsilon- Parameters:
val
- automatically generated
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create
Creates an instance of VariationalRefinement- Returns:
- automatically generated
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finalize
- Overrides:
finalize
in classDenseOpticalFlow
- Throws:
Throwable
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