OpenCVForUnity.Xfeatures2dModule.PCTSignaturesSQFD Class Reference

Class implementing Signature Quadratic Form Distance (SQFD). More...

Public Member Functions
float	computeQuadraticFormDistance (Mat _signature0, Mat _signature1)
	Computes Signature Quadratic Form Distance of two signatures.
void	computeQuadraticFormDistances (Mat sourceSignature, List< Mat > imageSignatures, MatOfFloat distances)
	Computes Signature Quadratic Form Distance between the reference signature and each of the other image signatures.
Public Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm
virtual void	clear ()
	Clears the algorithm state.
virtual bool	empty ()
	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read.
virtual string	getDefaultName ()
IntPtr	getNativeObjAddr ()
void	save (string filename)
Public Member Functions inherited from OpenCVForUnity.DisposableObject
void	Dispose ()
	Releases resources used by this object.
void	ThrowIfDisposed ()
	Throws ObjectDisposedException if this object has been disposed.

Static Public Member Functions
static new PCTSignaturesSQFD	__fromPtr__ (IntPtr addr)
static PCTSignaturesSQFD	create ()
	Creates the algorithm instance using selected distance function, similarity function and similarity function parameter.
static PCTSignaturesSQFD	create (int distanceFunction)
	Creates the algorithm instance using selected distance function, similarity function and similarity function parameter.
static PCTSignaturesSQFD	create (int distanceFunction, int similarityFunction)
	Creates the algorithm instance using selected distance function, similarity function and similarity function parameter.
static PCTSignaturesSQFD	create (int distanceFunction, int similarityFunction, float similarityParameter)
	Creates the algorithm instance using selected distance function, similarity function and similarity function parameter.
Static Public Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm
static Algorithm	__fromPtr__ (IntPtr addr)
Static Public Member Functions inherited from OpenCVForUnity.DisposableObject
static IntPtr	ThrowIfNullIntPtr (IntPtr ptr)
	Returns the native pointer, or throws CoreModule.CvException if it is zero.

Protected Member Functions
override void	Dispose (bool disposing)
Protected Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm
Protected Member Functions inherited from OpenCVForUnity.DisposableOpenCVObject
	DisposableOpenCVObject ()
	Initializes a new instance with a zero native pointer and dispose enabled.
	DisposableOpenCVObject (bool isEnabledDispose)
	Initializes a new instance with a zero native pointer.
	DisposableOpenCVObject (IntPtr ptr)
	Initializes a new instance with the specified native pointer and dispose enabled.
	DisposableOpenCVObject (IntPtr ptr, bool isEnabledDispose)
	Initializes a new instance with the specified native pointer.
Protected Member Functions inherited from OpenCVForUnity.DisposableObject
	DisposableObject ()
	Initializes a new instance with dispose enabled.
	DisposableObject (bool isEnabledDispose)
	Initializes a new instance.

Additional Inherited Members
Package Functions inherited from OpenCVForUnity.CoreModule.Algorithm
Package Attributes inherited from OpenCVForUnity.DisposableOpenCVObject
Properties inherited from OpenCVForUnity.DisposableObject
bool	IsDisposed [get, protected set]
bool	IsEnabledDispose [get, set]

Detailed Description

Class implementing Signature Quadratic Form Distance (SQFD).

See also

Christian Beecks, Merih Seran Uysal, Thomas Seidl. Signature quadratic form distance. In Proceedings of the ACM International Conference on Image and Video Retrieval, pages 438-445. ACM, 2010. [BeecksUS10]

Member Function Documentation

__fromPtr__()

static new PCTSignaturesSQFD OpenCVForUnity.Xfeatures2dModule.PCTSignaturesSQFD.__fromPtr__ ( IntPtr addr )

static

computeQuadraticFormDistance()

float OpenCVForUnity.Xfeatures2dModule.PCTSignaturesSQFD.computeQuadraticFormDistance	(	Mat	_signature0,
		Mat	_signature1 )

Computes Signature Quadratic Form Distance of two signatures.

Parameters

_signature0	The first signature.
_signature1	The second signature.

computeQuadraticFormDistances()

void OpenCVForUnity.Xfeatures2dModule.PCTSignaturesSQFD.computeQuadraticFormDistances	(	Mat	sourceSignature,
		List< Mat >	imageSignatures,
		MatOfFloat	distances )

Computes Signature Quadratic Form Distance between the reference signature and each of the other image signatures.

Parameters

sourceSignature	The signature to measure distance of other signatures from.
imageSignatures	Vector of signatures to measure distance from the source signature.
distances	Output vector of measured distances.

create() [1/4]

static PCTSignaturesSQFD OpenCVForUnity.Xfeatures2dModule.PCTSignaturesSQFD.create ( )

static

Creates the algorithm instance using selected distance function, similarity function and similarity function parameter.

Parameters

distanceFunction	Distance function selector. Default: L2 Available: L0_25, L0_5, L1, L2, L2SQUARED, L5, L_INFINITY
similarityFunction	Similarity function selector. Default: HEURISTIC Available: MINUS, GAUSSIAN, HEURISTIC
similarityParameter	Parameter of the similarity function.

create() [2/4]

static PCTSignaturesSQFD OpenCVForUnity.Xfeatures2dModule.PCTSignaturesSQFD.create ( int distanceFunction )

static

Creates the algorithm instance using selected distance function, similarity function and similarity function parameter.

Parameters

distanceFunction	Distance function selector. Default: L2 Available: L0_25, L0_5, L1, L2, L2SQUARED, L5, L_INFINITY
similarityFunction	Similarity function selector. Default: HEURISTIC Available: MINUS, GAUSSIAN, HEURISTIC
similarityParameter	Parameter of the similarity function.

create() [3/4]

static PCTSignaturesSQFD OpenCVForUnity.Xfeatures2dModule.PCTSignaturesSQFD.create ( int distanceFunction, int similarityFunction )

static

Creates the algorithm instance using selected distance function, similarity function and similarity function parameter.

Parameters

distanceFunction	Distance function selector. Default: L2 Available: L0_25, L0_5, L1, L2, L2SQUARED, L5, L_INFINITY
similarityFunction	Similarity function selector. Default: HEURISTIC Available: MINUS, GAUSSIAN, HEURISTIC
similarityParameter	Parameter of the similarity function.

create() [4/4]

static PCTSignaturesSQFD OpenCVForUnity.Xfeatures2dModule.PCTSignaturesSQFD.create ( int distanceFunction, int similarityFunction, float similarityParameter )

static

Creates the algorithm instance using selected distance function, similarity function and similarity function parameter.

Parameters

distanceFunction	Distance function selector. Default: L2 Available: L0_25, L0_5, L1, L2, L2SQUARED, L5, L_INFINITY
similarityFunction	Similarity function selector. Default: HEURISTIC Available: MINUS, GAUSSIAN, HEURISTIC
similarityParameter	Parameter of the similarity function.

Dispose()

override void OpenCVForUnity.Xfeatures2dModule.PCTSignaturesSQFD.Dispose ( bool disposing )

protectedvirtual

Reimplemented from OpenCVForUnity.CoreModule.Algorithm.

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

• OpenCVForUnity/Assets/OpenCVForUnity/Scripts/Core/org/opencv_contrib/xfeatures2d/PCTSignaturesSQFD.cs