Class BRISK

BRISK implementation

Inheritance
System.Object
DisposableObject
DisposableCvObject
Algorithm
Feature2D
BRISK
Implements
Inherited Members
Namespace: OpenCvSharp
Assembly: OpenCvSharp.dll
Syntax
public class BRISK : Feature2D, ICvPtrHolder

Constructors

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BRISK()

Declaration
protected BRISK()
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BRISK(IntPtr)

Construct from native cv::Ptr<T>*

Declaration
protected BRISK(IntPtr p)
Parameters
Type Name Description
IntPtr p

Methods

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Create(IEnumerable<Single>, IEnumerable<Int32>, Single, Single, Nullable<IEnumerable<Int32>>)

The BRISK constructor for a custom pattern

Declaration
public static BRISK Create(IEnumerable<float> radiusList, IEnumerable<int> numberList, float dMax = 5.85F, float dMin = 8.2F, IEnumerable<int>? indexChange = null)
Parameters
Type Name Description
IEnumerable<System.Single> radiusList

defines the radii (in pixels) where the samples around a keypoint are taken (for keypoint scale 1).
IEnumerable<System.Int32> numberList

defines the number of sampling points on the sampling circle. Must be the same size as radiusList..
System.Single dMax

threshold for the short pairings used for descriptor formation (in pixels for keypoint scale 1).
System.Single dMin

threshold for the long pairings used for orientation determination (in pixels for keypoint scale 1).
System.Nullable<IEnumerable<System.Int32>> indexChange

index remapping of the bits.
Returns
Type Description
BRISK
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Create(Int32, Int32, IEnumerable<Single>, IEnumerable<Int32>, Single, Single, Nullable<IEnumerable<Int32>>)

The BRISK constructor for a custom pattern, detection threshold and octaves

Declaration
public static BRISK Create(int thresh, int octaves, IEnumerable<float> radiusList, IEnumerable<int> numberList, float dMax = 5.85F, float dMin = 8.2F, IEnumerable<int>? indexChange = null)
Parameters
Type Name Description
System.Int32 thresh

AGAST detection threshold score.
System.Int32 octaves

detection octaves. Use 0 to do single scale.
IEnumerable<System.Single> radiusList

defines the radii (in pixels) where the samples around a keypoint are taken (for keypoint scale 1).
IEnumerable<System.Int32> numberList

defines the number of sampling points on the sampling circle. Must be the same size as radiusList..
System.Single dMax

threshold for the short pairings used for descriptor formation (in pixels for keypoint scale 1).
System.Single dMin

threshold for the long pairings used for orientation determination (in pixels for keypoint scale 1).
System.Nullable<IEnumerable<System.Int32>> indexChange

index remapping of the bits.
Returns
Type Description
BRISK
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Create(Int32, Int32, Single)

The BRISK constructor

Declaration
public static BRISK Create(int thresh = 30, int octaves = 3, float patternScale = 1F)
Parameters
Type Name Description
System.Int32 thresh

AGAST detection threshold score.
System.Int32 octaves

detection octaves. Use 0 to do single scale.
System.Single patternScale

apply this scale to the pattern used for sampling the neighbourhood of a keypoint.
Returns
Type Description
BRISK
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DisposeManaged()

Releases managed resources

Declaration
protected override void DisposeManaged()
Overrides
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DisposeUnmanaged()

Declaration
protected override void DisposeUnmanaged()
Overrides
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Get()

Declaration
public override IntPtr Get()
Returns
Type Description
IntPtr

Implements