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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Abstract

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.
Original languageEnglish
Title of host publication26th Symposium on Information Theory in the Benelux
EditorsJ. Cardinal, N. Cerf, O. Delgrnage
Place of PublicationBrussels
PublisherWerkgemeenschap voor Informatie- en Communicatietheorie (WIC)
Pages137-144
ISBN (Print)90-71048-21-7
Publication statusPublished - 2005
Event2005 Symposium on Information Theory in the Benelux (SITB 2005) - Brussels, Belgium
Duration: 19 May 200520 May 2005
Conference number: 26

Conference

Conference2005 Symposium on Information Theory in the Benelux (SITB 2005)
CountryBelgium
CityBrussels
Period19/05/0520/05/05

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