MATLAB File Help: cv.FREAK Index
cv.FREAK

Class implementing the FREAK (Fast Retina Keypoint) keypoint descriptor.

As described in [AOV12].

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 cv.SIFT, cv.SURF or cv.BRISK. They are competitive alternatives to existing keypoints in particular for embedded applications.

References

[AOV12]:

Alexandre Alahi, Raphael Ortiz, and Pierre Vandergheynst. "Freak: Fast retina keypoint". In Computer Vision and Pattern Recognition (CVPR), 2012 IEEE Conference on, pages 510-517. IEEE, 2012.

See also
Class Details
Superclasses handle
Sealed false
Construct on load false
Constructor Summary
FREAK Constructor 
Property Summary
id Object ID 
Method Summary
  addlistener Add listener for event. 
  clear Clears the algorithm state 
  compute Computes the descriptors for a set of keypoints detected in an image or image set. 
  defaultNorm Returns the default norm type 
  delete Destructor 
  descriptorSize Returns the descriptor size in bytes 
  descriptorType Returns the descriptor type 
  empty Checks if detector object is empty. 
  eq == (EQ) Test handle equality. 
  findobj Find objects matching specified conditions. 
  findprop Find property of MATLAB handle object. 
  ge >= (GE) Greater than or equal relation for handles. 
  getDefaultName Returns the algorithm string identifier 
  gt > (GT) Greater than relation for handles. 
Sealed   isvalid Test handle validity. 
  le <= (LE) Less than or equal relation for handles. 
  load Loads algorithm from a file or a string 
  lt < (LT) Less than relation for handles. 
  ne ~= (NE) Not equal relation for handles. 
  notify Notify listeners of event. 
  save Saves the algorithm parameters to a file 
  typeid Name of the C++ type (RTTI)