Answer by Emmanuel for I've read news about FREAK in OpenCV 2.4.2. Is FREAK...
It's actually a little bit more subtle: the pairs used by FREAK were chosen for their matching performance after a scale-sensitive detection of keypoints (the KP detector used is the same as BRISK,...
View ArticleComment by Ben for SURF is a detector like FAST. FREAK is a descriptor...
SURF isn't just a detector (which uses the fast-hessian method), it also is a descriptor. You can extract 64 or 128 dimensional descriptors from your detected keypoints.
View ArticleAnswer by jav_rock for I've read news about FREAK in OpenCV 2.4.2. Is FREAK...
SURF is a detector like FAST. FREAK is a **descriptor extractor**. It has more sense to compare it with SIFT. Actually, in the paper they say they use FREAK descriptors together with a pyramidal FAST...
View ArticleAnswer by Martin Peris for I've read news about FREAK in OpenCV 2.4.2. Is...
Hi! I recommend you to read the paper [FREAK: Fast Retina Keypoint. Alahi et al. CVPR2012](http://infoscience.epfl.ch/record/175537/files/2069.pdf). The authors claim that FREAK is scale and rotation...
View ArticleComment by sammy for I've read news about FREAK in OpenCV 2.4.2. Is FREAK...
Goodness is a relative measure - you should try both of them for your specific situation, and choose the best trade-off between quality, speed, and probably other factors.
View ArticleIs FREAK scale and rotation invariant?
I've read news about FREAK in OpenCV 2.4.2. Is FREAK scale and rotation invariant, like SURF? Is it as good as SURF?
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