• DocumentCode
    3164154
  • Title

    Hybrid fractal/DCT coding of video

  • Author

    De Faria, Sérgio M M ; Ghanbari, M.

  • Author_Institution
    Essex Univ., Colchester, UK
  • fYear
    1995
  • fDate
    4-6 Jul 1995
  • Firstpage
    321
  • Lastpage
    325
  • Abstract
    We introduce two techniques that can be used together to improve video coding performance. Firstly, block matching motion estimation with spatial transformation (BMST) is used to increase the motion compression efficiency, and then the motion compensated prediction (MCP) errors are encoded using a hybrid fractal/DCT scheme. The MCP error blocks are classified according to their energy content and they should be coded with a low bit rate. Many of them can be DCT coded, but for those which require a large bit rate to achieve a certain quality, fractal coding can be efficiently used considering the bit rate constraint. This hybrid scheme speeds up the decoding process, reduces the bit rate, and due the efficiency of the motion compensation only a few MCP error images are coded
  • Keywords
    discrete cosine transforms; fractals; image classification; image matching; motion compensation; motion estimation; prediction theory; transform coding; video coding; DCT coded; bit rate constraint; bit rate reduction; block matching motion estimation; energy content; fractal coding; hybrid fractal/DCT coding; low bit rate coding; motion compensated prediction errors; motion compression efficiency; spatial transformation; video coding;
  • fLanguage
    English
  • Publisher
    iet
  • Conference_Titel
    Image Processing and its Applications, 1995., Fifth International Conference on
  • Conference_Location
    Edinburgh
  • Print_ISBN
    0-85296-642-3
  • Type

    conf

  • DOI
    10.1049/cp:19950673
  • Filename
    465538