Differences between OpenCV SURF and OpenSURF?

Question

I am trying to use (SURF(opencv); [OPENSURF c++;OPENSURFC#] OPensurf http://www.chrisevansdev.com/computer-vision-opensurf.html), SIFT for image matching.

I have the feeling that SIFT is more accurate at the time of cost than SURF(OpenCV).
OpenSURF takes more time than OpenCV SURF
Any accuracy tests for SURF/OpenSURF/SIFT?

Have you tried any? What were your results? Which is better and why?

I thought this was about c# libraries for a protocol called "SURF". — , Mar 23 '11 at 15:59
I can this may help you .[Comparison between Sift and surf](http://www.cscjournals.org/csc/manuscript/Journals/IJIP/volume3/Issue4/IJIP-51.pdf) — ankit, Jan 08 '12 at 13:13

score 0 · Answer 1 · answered May 04 '14 at 14:22

SIFT extracts more key features from an image. In an 70*70 average face photo SIFT extracts nearly 40-50 features, however SURF extracts nearly 8-10. SURF is faster than SIFT, however their benefits changes according to application you want to make. For example in face recognition some of beneficial features may be missed in SURF so with my trials I saw SIFT is more beneficial and accurate in applications like face recognition because it extracts more features.

Differences between OpenCV SURF and OpenSURF?

1 Answers1