No, point feature extraction is, as the name says, the extraction of features of a point. You dont have a motion estimation from feature points, they are just significant points of a image. What you are going to do with those extracted features is up to you, if you decide to use them for video stabilization then its fine, but you also could use them to project a image onto another image or create a virtual reality with them.
Motion estimation is to find a point and estimate where it will be in the next frame with the infos of the previous frames. You can use feature points for that, but feature points are just a information you use for the motion estimation, they are no motion estimation method themself.
