| 摘要 |
<p>A block prediction method using improved direct mode for B picture in a moving picture coding system obtains forward and backward motion vectors of direct mode, obtains two distinct motion-compensated blocks using the forward and backward motion vectors, and predicts a block of the B picture which is about to be coded (or decoded) by applying weight factors to the above blocks, wherein each weight factor is dependent on a temporal distance between a current picture including the bi-predictive block and one of the plurality of reference pictures. The accuracy of the predicted block and the coding efficiency are thereby improved.</p> |
