Revision history [back]

As an answer to my question, for each Keypoints 6 or 7 different parameters were stored. In my case it's 7 parameters including::

KeyPoint (float x, float y, float _size, float _angle=-1, float _response=0, int _octave=0, int _class_id=-1) x x-coordinate of the keypoint y y-coordinate of the keypoint _size keypoint diameter _angle keypoint orientation _response keypoint detector response on the keypoint (that is, strength of the keypoint) _octave pyramid octave in which the keypoint has been detected _class_id object id

for more info see:keypoints

And descriptor is consist of orientation for all 128 vectors in each keypoint. It will have 128*number of keypoints value. Every 128 value belongs to one keypoint. Someone else might has the same question. Hope this helps.

As an answer to my question, for each Keypoints 6 or 7 different parameters were stored. In my case it's 7 parameters including::

KeyPoint (float x, float y, float _size, float _angle=-1, float _response=0, int _octave=0, int _class_id=-1) _class_id=-1)

x x-coordinate of the keypoint keypoint

y y-coordinate of the keypoint keypoint

_size keypoint diameter diameter

_angle keypoint orientation orientation

_response keypoint detector response on the keypoint (that is, strength of the keypoint) keypoint)

_octave pyramid octave in which the keypoint has been detected detected

_class_id object id

for more info see:keypoints

And descriptor is consist of orientation for all 128 vectors in each keypoint. It will have 128*number of keypoints value. Every 128 value belongs to one keypoint. Someone else might has the same question. Hope this helps. helps.

As an answer to my question, for each Keypoints 6 or 7 different parameters were stored. In my case it's 7 parameters including::

KeyPoint (float x, float y, float _size, float _angle=-1, float _response=0, int _octave=0, int _class_id=-1)

x x-coordinate of the keypoint

y y-coordinate of the keypoint

_size keypoint diameter

_angle keypoint orientation

_response keypoint detector response on the keypoint (that is, strength of the keypoint)

_octave pyramid octave in which the keypoint has been detected

_class_id object id

for more info see:keypoints

And descriptor is consist of orientation 128 dimensional feature vectors for all 128 vectors in each keypoint. It will have 128*number of keypoints value. Every 128 value belongs to one keypoint. Someone else might has the same question. Hope this helps.