| 摘要 |
Moving picture coding system for coding a series of moving pictures including current and preceding pictures in an intra-picture and inter-picture prediction coding scheme, has a coding device for producing and transmitting coded data of moving pictures, a memory device for storing the coded data, and a detecting device for detecting excess from a predetermined transmission rate of the coded data to be transmitted. When the excess is detected, coded data of the current picture is skipped, but skip information is transmitted instead, and when the skipped current picture falls into a prediction reference picture for a subsequently coded picture, the preceding picture which is not skipped undergoes a prediction coding for transmission. In the decoding system for decoding the coded data, when the skip information is detected, one of non-skipped pictures adjacent to the current picture is outputted, and when the skipped picture falls into a prediction reference picture for a subsequently coded picture at a timing of coding, the preceding picture is used for prediction decoding in the decoding system.
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