Motion flow analysis method in mpeg compressed domain

The present invention relates to motion vector analysis method in the compression zone, in particular, by using the two-way prediction structure, a range of the motion vector in the compressed image equally interpreted by the frame, to reconstruct the entire sequence of frames so as to have only a single direction of movement dense and relates to a vector analysis move in the compression zone method that can form a comprehensive motion vector based. Usually, is not a direct comparison of the respective frame motion analysis when a motion I-frame and other frame vector does not have in the compressed domain, however, our method is able to vector analysis equally from all frames, such as I, B, P frame It allows. The proposed algorithm by processing on the macro-block area without full restoration process of the compressed image, and to reduce the time losses, experimental results show a good performance of the proposed method. Compression area, a motion vector, a two-way prediction structure, the frame sequence, re-estimation