SNR-scalable extension of H.264/AVC

This document contains a description of an SNR-scalable extension of H.264/AVC. To achieve an efficient SNR-scalable bitstream representation of a video sequence, the temporal de-pendency between pictures is coded using an open-loop subband approach. In this codec, most components of H.264/AVC are used as specified in the standard while only a few have been ad-justed to the subband coding structure. We have tested a first version of the approach with QCIF and CIF resolution sequences obtaining some promising results.