System for encoding and transmitting video signals comprising motion vectors.

摘要

A redundancy reduction algorithm, such as DCT Ibrida, is applied to a video signal and subsequently encoded for selected pixel blocks, and motion vectors (MV) are generated for each image block. At least one global motion vector (GV) is then generated for the entire image, the block motion vectors are subtracted from the global vector to obtain local motion vectors (LV) representing the shifts from the global vector, the global vector is encoded at fixed length, the local vectors are encoded at variable length, and the coded global vector and the coded local vectors are multiplied in the coded video signal (CD) to be transmitted.