1 | initial version |
This highly depends on what kind of matcher you use. For example bruteforce matching returns the hamming distance of those matched keypoints which equals numbers from 0 to infinity (actually limited by the length/bits of/in the descriptor). So there is no direct answer to your question if dont tell us what kind of matcher (and descriptor) you used.
2 | No.2 Revision |
This highly depends on what kind of matcher you use. For example bruteforce matching returns the hamming distance of those matched keypoints which equals integer numbers from 0 to infinity (actually limited by the length/bits of/in the descriptor). So there is no direct answer to your question if dont tell us what kind of matcher (and descriptor) you used.
3 | No.3 Revision |
This highly depends on what kind of matcher you use. For example bruteforce matching returns the hamming distance of those matched keypoints which equals integer numbers from 0 to infinity (actually limited by the length/bits of/in the descriptor). So there is no direct answer to your question if you dont tell us what kind of matcher (and descriptor) you used.