Vorrichtung und Verfahren zur prädiktiven bewegungskompensierten Kodierung

摘要

A moving picture signal is encoded by motion-compensated prediction using motion vectors for each motion-compensated block of the moving picture signal. The motion vectors are arranged into motion vector groups for each predetermined number of motion vectors. A code table is selected among a plurality of code tables for each motion vector group for encoding the motion vectors. Code table selection information is then output. The motion vectors is encoded by variable-length coding using the selected code table in accordance with the code table selection information. The code table selection information, the encoded motion vectors and an encoded predictive error signal are then multiplexed. A moving picture bit stream encoded as above is decoded. The moving picture bit stream is demultiplexed into the motion vectors, the code table selection information and the encoded predictive error signal. The motion vectors are then decoded by variable-length decoding using the code table selected in accordance with the code table selection information for decoding the predictive error signal by motion-compensated prediction. <IMAGE>