Statistical correlations of the smoothness and consistency in images were used to develop error concealment techniques for I-frame, P-frame, and B-frame MPEG-2.

The proposed method can detect scene boundaries through using various macroblock type of B-frame and P-frame in MPEG video flow in order to realize accurate scene change positioning.

With the analysis of P. E. teachers and students in city, theoretical frame and implement procedure are shown. It is helpful and experiencing for P.