ORB detector octaves [closed]
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!
ORB from theory isn't so much multiscale. With a difference in scale of 1.4 hardly you can still get good results
Which size do the images have?
I'd try OpenCV 2.4.10 and see if the problem still occurs...
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.