Evaluating MPEG-4 Video Decoding Complexity for an Alternative Video
J. Valentim, Paulo J. L. Nunes, Fernando M. B. Pereira · 2002
MPEG-4 is the first object-based audiovisual coding standard. To control the minimum decoding complexity resources required at the decoder, the MPEG-4 Visual standard defines the so-called video buffering verifier mechanism, which includes three virtual buffer models, among them the video complexity verifier (VCV). This paper proposes an alternative VCV model, based on a set of macroblock (MB) relative decoding complexity weights assigned to the various MB coding types used in MPEG-4 video coding. The new VCV model allows a more efficient use of the avail- able decoding resources by preventing the overevaluation of the de- coding complexity of certain MB types and thus making it possible to encode scenes (for the same profile@level decoding resources) which otherwise would be considered too demanding. Index Terms—Decoding complexity, MPEG-4 standard, profiles and levels, video complexity verifier (VCV) model.