• DocumentCode
    1811468
  • Title

    Comparison of χ2 and κ statistics in finding signal and picture periodicity

  • Author

    Selkainaho, K. ; Parkkinen, J. ; Oja, E.

  • Author_Institution
    Dept. of Comput. Sci. & Math., Kuopio Univ., Finland
  • fYear
    1988
  • fDate
    14-17 Nov 1988
  • Firstpage
    1221
  • Abstract
    Two statistical measures, based on contingency tables, were compared in trying to reveal the periodic or quasiperiodic structure of a texture from its cooccurrence histogram: the χ2 and the κ statistics. Both are sensitive to periodicity, but the κ statistic is clearly better in the sense that the χ2 can attain high values for displacements quite different from the actual period, as long as the cooccurrence histogram shows a specific structure associating the two relevant variables. If periodicity is the property looked for, then statistical agreement, measured by the κ statistic, is the property that will best reveal it
  • Keywords
    computerised picture processing; statistical analysis; computerised picture processing; cooccurrence histogram; periodic structure; picture periodicity; quasiperiodic structure; statistics; texture; Biomedical measurements; Computational complexity; Computer science; Histograms; Image segmentation; Information technology; Mathematics; Periodic structures; Signal analysis; Statistics;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Pattern Recognition, 1988., 9th International Conference on
  • Conference_Location
    Rome
  • Print_ISBN
    0-8186-0878-1
  • Type

    conf

  • DOI
    10.1109/ICPR.1988.28476
  • Filename
    28476
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1811468