• DocumentCode
    3015398
  • Title

    Optimum rate allocation in pyramid vector quantizer transform coding of imagery

  • Author

    Blain, Mary E. ; Fischer, Thomas R.

  • Author_Institution
    Texas A&M University, College Station, Texas
  • Volume
    12
  • fYear
    1987
  • fDate
    31868
  • Firstpage
    729
  • Lastpage
    732
  • Abstract
    The optimum rate allocation is derived for pyramid vector quantization (PVQ) in transform coding of monochromatic imagery. A modification to the low-rate PVQ encoding algorithm is described, which provides improved performance. Images are encoded with both the PVQ and standard scalar quantizer transform coders, demonstrating that the PVQ coder reduces the mean-square encoding error and better preserves image edges.
  • Keywords
    Algorithm design and analysis; Clustering algorithms; Code standards; Discrete cosine transforms; Image coding; Laplace equations; Lattices; Transform coding; Vector quantization; Very large scale integration;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '87.
  • Type

    conf

  • DOI
    10.1109/ICASSP.1987.1169591
  • Filename
    1169591
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3015398