System-Level Data-Flow Transformation Exploration andPower-Area Trade-offs Demonstrated on Video Codecs

  • Authors:
  • Francky Catthoor;Martin Janssen;Lode Nachtergaele;Hugo De Man

  • Affiliations:
  • IMEC, Kapeldreef 75, B-3001 Leuven, Belgium;IMEC, Kapeldreef 75, B-3001 Leuven, Belgium;IMEC, Kapeldreef 75, B-3001 Leuven, Belgium;IMEC, Kapeldreef 75, B-3001 Leuven, Belgium

  • Venue:
  • Journal of VLSI Signal Processing Systems - Special issue on systematic trade-off analysis in signal processing systems design
  • Year:
  • 1998

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Abstract

Application studies in the domain of image and video processingsystems indicate that up to 80% of the power and area cost in customized architectures for such data-dominant processing is due to storage and transfers for multi-dimensional (M-D) data. This paper has twomain contributions. First, as a crucial step to reduce this dominant cost,we propose an exploration subscript focused on data-flow transformationswhich address the system-level storage organization. This subscript fitswithin a complete high-level memory management methodology developed in thecontext of our ATOMIUM research activity. We will also indicate thepotential for future design support in each of the stages of the subscript.Secondly, we will demonstrate the usefulness of the stages in this novelsystem exploration approach based on realistic test-vehicles, in particularcrucial modules in a complex H.263 video decoder system forteleconferencing.