1. A method, comprising: applying by a processor of an ultrasound system, motion blur reduction to one or more three-dimensional (3D) images, the motion blur reduction comprising: applying motion estimation based on an initial block size; iteratively applying motion estimation for one or more other iterations, wherein block size associated with each iteration is reduced in relation to block size of a previous iteration; and determining a final velocity vector by summing displacement vectors from all iterations; and applying by the processor of the ultrasound system, improvement to motion-compensated frames, by: obtaining for motion-compensated frames or portions thereof, corresponding lower resolution frames or portions of a frame; and processing the motion-compensated frames or the portions thereof, to enhance motion related characteristics in the motion-compensated frames, based on information obtained from the obtained lower resolution frames or the portion of a frames.