Where Ts is the starting time of the shot, andTe is
the end time of the shot, and MT is the threshold of
sum of difference pixels. It is very important to select a
proper threshold, if the threshold we select is too great,
we will lose some important frames in the shot. On the
contrary, we will add some useless frames. It is proved
in our experiment that the suitable MT is 10000.
The experimental result of shot segment is shown as
follows: