| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide users with videos in accordance with an MPEG standard when the images are distributed to narrow band channels not included in the MPEG standard. SOLUTION: If the amount of data on video information (I1, B1 to B10, P1 to P4) which are compressed by MPEG exceeds the band of a channel, B pictures (B1 to B10) are thinned to keep the data amount of the video information within the channel band. Then, dummy B pictures 1 (Ba to Bj) where the inter-frame difference information is equal to 0 are produced and put into the places where the B pictures (B1 to B10) are taken out. Thus, the video information of a standard MPEG format is produced again.</p> |
