• DocumentCode
    3312386
  • Title

    Spline-based resampling of noisy images

  • Author

    Gotchev, Atanas ; Egiazarian, Karen

  • Author_Institution
    Signal Process. Lab., Tampere Univ. of Technol., Finland
  • fYear
    2001
  • fDate
    2001
  • Firstpage
    580
  • Lastpage
    585
  • Abstract
    We consider the problem of image resampling in the presence of noise in terms of a regularized solution for spline-like model coefficients. The properties of the generalized cross-validation (GCV) and the Akaike information criterion (AIC) for determination of the time number of the model coefficients and the value of the regularization parameter have been examined. A two-parameter optimization procedure can be applicable in the case of noisy resampling. The method is applicable when the image should be resampled and denoised at the same time. The problem is somehow related to the problem of finding the natural scale of representation, when one aims to find the image scale optimum for further processing (compression, denoising, etc.). The practical realization of the method is discussed as well
  • Keywords
    image representation; image resolution; image sampling; optimisation; splines (mathematics); AIC; Akaike information criterion; GCV; generalized cross-validation; image representation; image scale optimum; noisy images; regularized solution; spline-based resampling; spline-like model coefficients; two-parameter optimization; Biomedical signal processing; Image coding; Image denoising; Interpolation; Laboratories; Noise reduction; Polynomials; Spline; Wavelet domain; Wavelet transforms;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Image and Signal Processing and Analysis, 2001. ISPA 2001. Proceedings of the 2nd International Symposium on
  • Conference_Location
    Pula
  • Print_ISBN
    953-96769-4-0
  • Type

    conf

  • DOI
    10.1109/ISPA.2001.938695
  • Filename
    938695