To reduce the problem of occurrence of errors in a motion compensating compression video signal processed by a dynamic picture compression technology such as MPEG.

This video coding relates to an encoding and decoding method for a video signal, that is subjected to motion compensation by a motion vector encoded by a reversible composition code, whose attached codes are interleaved. The composition code occupies even numbered bits of a code word and the attached codes occupy odd numbered bits of the code word. It is preferably to include motion vector data sectioned by texture data and the motion vector differentially encoded, by using its immediately preceding motion vector for an accompanying predicator.