Dekodiersystem für Bewegtbilder

摘要

In a motion picture data decoding system, even if a transmission error including an uncorrectable code error is generated, a lacked portion of the picture can be corrected to be smooth with respect to a peripheral picture. A block including an uncorrectable code error is generated is replaced with a block picture, which is produced by a past motion vector depending on a past frame picture. Thereby, the lack portion due to the code error can be corrected to be smooth with respect to the peripheral picture, regardless of the existence of the motion of the picture to be decoded. When an uncorrectable code error is detected (S23), it is determined whether or not a motion quantity of a motion vector corresponding to picture data, which causes an error detection signal, is larger than a predetermined value. If the motion quantity is large, the picture data and the interpolation data are combined together. If the motion quantity is small, the picture data and the predictive picture data are combined together. Thereby, the lack due to the code error can be corrected to be unnoticeable, regardless of the motion quantity of the motion picture data to decoded. <IMAGE>