| 摘要 |
<p>An apparatus for coding and/or decoding information data can edit information data at the compression unit by use of a high-efficiency two-way motion compensation predictive system. A motion compensation processing circuit (1) includes one-way predicting means (first motion compensating circuit (14)) for motion-compensation-predicting video data (Dv) based on frame information just behind the video data (Dv), two-way predicting means (first and second motion compensating circuits (14), (15) and an adder (16)) for motion-compensation-predicting the video data (Dv) based on frame information immediately-preceding and immediately-succeeding the video data (Dv) and a first switching circuit (17) for selectively switching one-way motion compensation predictive data (Dsr) supplied thereto from the one-way predicting means (14) and two-way motion compensating data (Dt) supplied thereto from the two-way predicting means (14, 15, 16) based on edit information (Sh) supplied thereto through an input terminal ( phi e). A data compression processing circuit (2) includes a synthesizing circuit for synthesizing coded data (dv) with motion vector data (v1 and v2) and the edit information (Sh). <IMAGE></p> |
