ORB detector octaves [closed]

asked 2013-01-30 18:27:51 -0500

bromion gravatar image

I am using OpenCV 2.4.3 release. When detecting features with ORB, all the keypoints are reported on the first octave (KeyPoint octave = 0). Consequently, all the KeyPoint sizes are the same. I've tried many parameters and looked at the code, but don't see an obvious bug. Is this a bug in the detector? Have others been able to get multi-scale ORB detections?

Thanks!

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Closed for the following reason the question is answered, right answer was accepted by sturkmen
close date 2020-10-10 00:48:30.255122

Comments

ORB from theory isn't so much multiscale. With a difference in scale of 1.4 hardly you can still get good results

yes123 gravatar imageyes123 ( 2013-06-07 12:47:35 -0500 )edit

Which size do the images have?

Notas gravatar imageNotas ( 2013-08-08 05:27:18 -0500 )edit

I'd try OpenCV 2.4.10 and see if the problem still occurs...

Guanta gravatar imageGuanta ( 2014-10-18 11:12:59 -0500 )edit

Like Guanta said, if you want to avoid trying to fix old bugs, then first try the stable release branch of github and see where that gets you.

StevenPuttemans gravatar imageStevenPuttemans ( 2014-10-20 05:56:35 -0500 )edit