I was wondering if anyone could help me with calculating the motion magnitude between video frames. I have downloaded one function from here (fastMV.m), and have all the motion vectors calculated. Also returned by the function is rep_motion, which is a 1X2 column vector. I don't fully understand what the rep_motion is, but I reckon it might be an overall average of the motion vectors?
Anyway, I am actually interested to plot a graph... of motion activity against time. But I am not sure how to obtain the average (or representative) motion activity (is it same as motion magnitude?) from the motion vector calculations. Can anyone be of assitance?