The FREAK (Fast Retina Keypoint) keypoint descriptor: Alahi, R. Ortiz, and P. Vandergheynst. FREAK: Fast Retina Keypoint. In IEEE Conference on Computer Vision and Pattern Recognition, 2012. CVPR 2012 Open Source Award Winner. The algorithm propose a novel keypoint descriptor inspired by the human visual system and more precisely the retina, coined Fast Retina Key- point (FREAK). A cascade of binary strings is computed by efficiently comparing image intensities over a retinal sampling pattern. FREAKs are in general faster to compute with lower memory load and also more robust than SIFT, SURF or BRISK. They are competitive alternatives to existing keypoints in particular for embedded applications.

Namespace: Emgu.CV.Features2D
Assembly: Emgu.CV (in Emgu.CV.dll) Version: (


public class Freak : UnmanagedObject, IDescriptorExtractor<Gray, byte>
Visual Basic
Public Class Freak
	Inherits UnmanagedObject
	Implements IDescriptorExtractor(Of Gray, Byte)
Visual C++
public ref class Freak : public UnmanagedObject, 
	IDescriptorExtractor<Gray, unsigned char>
type Freak =  
        inherit UnmanagedObject
        interface IDescriptorExtractor<Gray, byte>

Inheritance Hierarchy


See Also