MPEG 2-Based Video Coding with Three-Layer Mixed Scalability

  • Authors:

  • Marek Domanski;Slawomir Mackowiak

  • Affiliations:

  • -;-

  • Venue:
  • CAIP '01 Proceedings of the 9th International Conference on Computer Analysis of Images and Patterns
  • Year:
  • 2001

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Abstract

The paper describes a three-layer video coder based on spatio-temporal scalability and data partitioning. The base layer represents video sequences with reduced spatial and temporal resolution. Decoding of a middle layer gives full resolution images but with lower quality as compared to those obtained from the enhancement layer also. The bitrate overhead measured relative to the single layer MPEG-2 bitstream varies about 5% - 25% for progressive television test sequences. The base layer is fully MPEG-2 compatible and the whole structure exhibits high level of compatibility with individual building blocks of MPEG-2 coders. The paper reports experimental results that prove useful properties of the coder proposed.