• DocumentCode
    1045652
  • Title

    Perceptually weighted vector quantisation in the DCT domain

  • Author

    Macq, B. ; Shi, H.Q.

  • Author_Institution
    Catholique Univ. de Louvain, Belgium
  • Volume
    29
  • Issue
    15
  • fYear
    1993
  • fDate
    7/22/1993 12:00:00 AM
  • Firstpage
    1382
  • Lastpage
    1384
  • Abstract
    A new vector quantisation scheme based on a perceptually weighted signal-to-noise ratio (WSNR) is proposed. The authors show that the application of the LBG procedure in the DCT domain using the WSNR as the function to be optimised leads to substantial improvement in the perceptual quality of the decoded images, compared to the LBG procedure in the pixel domain.
  • Keywords
    discrete cosine transforms; image coding; vector quantisation; DCT domain; LBG procedure; decoded images; perceptually weighted SNR; signal-to-noise ratio; vector quantisation scheme;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19930926
  • Filename
    274868
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1045652