• DocumentCode
    946210
  • Title

    Probability density functions for Hadamard coefficients in transformed television pictures

  • Author

    Ghanbari, Milad ; Pearson, D.E.

  • Author_Institution
    University of Essex, Department of Electrical Engineering Science, Colchester, UK
  • Volume
    14
  • Issue
    8
  • fYear
    1978
  • Firstpage
    252
  • Lastpage
    254
  • Abstract
    The distributions of Hadamard coefficient for blocks of size 8 × 1 picture elements in six 625-line television pictures were obtained. The data were well approximated by gamma distributions. Low-sequency components were best fitted by choosing ¿(n) with n in the range 1/2¿2/3, and high-sequency components by n = 1 (equivalent to the negative exponential distribution).
  • Keywords
    probability; video signals; Hadamard coefficients; gamma distributions; probability density functions; transformed television pictures; video signals;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19780172
  • Filename
    4241045
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=946210