FastRetinaKeypointDescriptor Class

Fast Retina Keypoint (FREAK) descriptor.

Inheritance Hierarchy

SystemObject
Accord.ImagingFastRetinaKeypointDescriptor

Namespace: Accord.Imaging
Assembly: Accord.Imaging (in Accord.Imaging.dll) Version: 3.8.0

Syntax

public class FastRetinaKeypointDescriptor : ICloneable

Public Class FastRetinaKeypointDescriptor
	Implements ICloneable

The FastRetinaKeypointDescriptor type exposes the following members.

Properties

	Name	Description
	Extended	Gets or sets whether to compute the standard 512-bit descriptors or extended 1024-bit
	Image	Gets the UnmanagedImage of the original source's feature detector.
	Integral	Gets the IntegralImage of the original source's feature detector.
	IsOrientationNormal	Gets or sets whether the orientation is normalized.
	IsScaleNormal	Gets or sets whether the scale is normalized.

Methods

	Name	Description
	Clone	Creates a new object that is a copy of the current instance.
	Compute	Describes the specified point (i.e. computes and sets the orientation and descriptor vector fields of the FastRetinaKeypoint.
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

Extension Methods

	Name	Description
	HasMethod	Checks whether an object implements a method with the given name. (Defined by ExtensionMethods.)
	IsEqual	Compares two objects for equality, performing an elementwise comparison if the elements are vectors or matrices. (Defined by Matrix.)
	To(Type)	Overloaded. Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime. (Defined by ExtensionMethods.)
	ToT	Overloaded. Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime. (Defined by ExtensionMethods.)

Remarks

Based on original implementation by A. Alahi, R. Ortiz, and P. Vandergheynst, distributed under a BSD style license.

In order to extract feature points from an image using FREAK, please take a look on the FastRetinaKeypointDetector documentation page.

References:

A. Alahi, R. Ortiz, and P. Vandergheynst. FREAK: Fast Retina Keypoint. In IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2012 Open Source Award Winner.