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1 Bulletin of the Polish Academy of Sciences. Technical Sciences

1 1999

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MPEG-Based Scalable Video Codec with 3-D Subband Decomposition

Domański M., Łuczak A., Maćkowiak S., Świerczyński R.

Bulletin of the Polish Academy of Sciences. Technical Sciences

1999

Vol. 47, nr 3

247-253

The MPEG-2 video coding standard provides the functionality of spatial scalability in an inefficient way. Therefore solutions based on subband decomposition gained a lot of interest very recently. In particular, this paper deals with scalable (hierarchical) coding of video at bitrates in the range af about 2-6 Mbps. The solution proposed in the paper is based on both temporal and spatial resolution reduction performed for data transmitted in a base layer. The basic idea is to employ three-dimensional subband decomposition. The assumption is that the base layer is encoded fully MPEG-2 compatible. Bitstreams related to high spatial frequencies are encoded using a technique that exploits mutual dependencies between low- and high-spatial-frequency subbands. The technique is implemented as a C++ program with about 12 980 lines of code.