• DocumentCode
    1257696
  • Title

    Directionally classified image vector quantisation using Walsh Hadamard subspace distortion

  • Author

    Po, L.M. ; Chan, Calvin K.

  • Author_Institution
    Dept. of Electron. Eng., City Polytech. of Hong Kong, Kowloon Tong, Hong Kong
  • Volume
    27
  • Issue
    21
  • fYear
    1991
  • Firstpage
    1964
  • Lastpage
    1967
  • Abstract
    A novel directionally classified subspace image vector quantisation coding scheme using a new gradient based edge classifier and Walsh Hadamard transform subspace distortion measures is proposed. The new coding scheme can reduce both the computational complexity and memory requirement of the conventional classified vector quantisation technique while the reproduced image quality is maintained.
  • Keywords
    Walsh functions; data compression; encoding; picture processing; transforms; Walsh Hadamard subspace distortion; computational complexity; directionally classified subspace image vector quantisation coding; gradient based edge classifier; memory requirement; reproduced image quality;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19911218
  • Filename
    98874
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1257696