Process for decoding and coding a compressed video data stream with reduced memory requirements

摘要

The method is for coding and for decoding a video data stream, only one picture which is required for the reconstruction of interpolated pictures being stored in completely decompressed form during the coding or during the decoding of the video data stream. That part of a second basic picture (G2) which is required in decompressed form for the construction or reconstruction of an interpolated picture is temporarily decompressed in each case. A further possibility envisages storing a first basic picture (G1) and the second basic picture (G2) in compressed form and in each case temporarily decompressing only those regions which are required for the construction or reconstruction of an interpolated picture.