Browsing by Keywords "Subband decomposition"

Now showing items 1-5 of 5

    • Computationally efficient voice dialing system 

      Solmaz, Mustafa Hakan (Bilkent University, 1998)
      Subband based feature parameters are becoming widely used for speech recognition purposes. In this thesis a subband-based, small-vocabulary, speaker-dependent, isolated-word recognition system is proposed. The most ...

    • Linear/nonlinear adaptive polyphase subband decomposition structures for image compression 

      Gerek, Ömer N.; Çetin, A. Enis (IEEE, 1998-05)
      Subband decomposition techniques have been extensively used for data coding and analysis. In most filter banks, the goal is to obtain subsampled signals corresponding to different spectral bands of the original data. ...

    • A multiresolution nonrectangular wavelet representation for two-dimensional signals 

      Çetin, A. Enis (Elsevier, 1993)
      In this paper, a new multiresolution wavelet representation for two-dimensional signals is described. This wavelet representation is based on a nonrectangular decomposition of the frequency domain. The decomposition can ...

    • New methods for robust speech recognition 

      Erzin, Engin (Bilkent University, 1995)
      New methods of feature extraction, end-point detection and speech enhcincement are developed for a robust speech recognition system. The methods of feature extraction and end-point detection are based on wavelet analysis ...

    • Polyphase adaptive filter banks for subband decomposition 

      Gerek, Ömer N.; Çetin, A. Enis (IEEE, 1998-05-06)
      Subband decomposition is widely used in signal processing applications including image and speech compression. In most practical cases, the goal is to obtain subband signals that are suitable for data compression. In this ...