mpressed with group of picture in MPEG video
compressed domain, the first frame in the group of
picture is always the I-frame, and for the P-frame we
can use the previous I- or P-frame for motion
compensation and may be used as a reference for
further prediction. For the B-frame can use the
previous and next I- or P-frames for motioncompensation
[9]. The typical MPEG video coding
procedure is shown as follows.