Adaptive decoding of MPEG-4 sprites for memory-constrained embedded systems

M. Pastrnak, D.S. Farin, P.H.N. With, de

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Background sprite decoding is an essential part of object-based video coding.The composition and rendering of a final scene involves the placing of individual video objects in a predefined way superimposed on the decoded background image. The MPEG-4 standard includes the decoding algorithm for background image decoding, but this algorithm is not suitable for implementation on a memory-constrained platform. In this paper we present a modification of the decoding algorithm that decodes MPEG-4 sequences while fulfilling the requirements of a memory-constrained multiprocessor system with only 17% extra overhead of computation. Our algorithm reduces the memory cost of such decoding with a factor of four. Additionally, our algorithm offers the possibility of high level data parallelism and consequently contributes to an increase of throughput rate.
Originele taal-2Engels
Titel26th Symposium on Information Theory in the Benelux
RedacteurenJ. Cardinal, N. Cerf, O. Delgrnage
Plaats van productieBrussels
UitgeverijWerkgemeenschap voor Informatie- en Communicatietheorie (WIC)
Pagina's137-144
ISBN van geprinte versie90-71048-21-7
StatusGepubliceerd - 2005
Evenement2005 Symposium on Information Theory in the Benelux (SITB 2005) - Brussels, België
Duur: 19 mei 200520 mei 2005
Congresnummer: 26

Congres

Congres2005 Symposium on Information Theory in the Benelux (SITB 2005)
Land/RegioBelgië
StadBrussels
Periode19/05/0520/05/05

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