• Refinable vector splines and multi-wavelets with shortest matrix filters 

      Ranirina, Dinna (Stellenbosch : Stellenbosch University, 2018-03)
      ENGLISH ABSTRACT : A widely used class of basis functions in signal analysis is obtained from the dilation and integer shifts of a given (compactly supported) wavelet ψ : R → R, by means of which a (scalar) signal can ...
    • The transfer of distributions by LULU smoothers 

      Butler, Pieter-Willem (Stellenbosch : Stellenbosch University, 2008-12)
      LULU smoothers is a class of nonlinear smoothers and they are compositions of the maximum and minimum operators. By analogy to the discrete Fourier transform and the discrete wavelet transform, one can use LULU smoothers to ...