Comments (2)
Hello,
Thanks for your interest.
You are probably seeing different coordinates for features which are in higher octaves of the image pyramid. Descriptor coordinates refer to the original image space, whereas keypoint coordinates refer to the image pyramid level in which they are detected. To do this conversion, multiply the keypoint coordinate by 2 ^ (octave index). Does this match with what you're seeing?
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thank you bbrister,this is right.
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