A first super-resolution enlarger 103 works on moving pictures input with a standard resolution, implementing a process for a super-resolution enlargement including information on frequency components in the spatial direction and the temporal direction that has been potentially contained in the input moving pictures but unable to express to a sufficient degree by the standard resolution, and provides super-resolution enlarged signals, which are returned to the standard resolution at a first resolution converter 104, and the super-resolution enlarged signals as returned to the standard resolution are encoded at a second encoder 107. There is a first encoder 102 for encoding moving pictures input with the standard resolution, and a multiplexer 109 working to multiplex a sequence of encoded bits from the first encoder 102, a sequence of encoded bits from the second encoder 107, and the like. The second encoder 107 is adaptive to employ local decoded signals in the first encoder 102 or processed signals thereof, as reference signals.