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New regular M-band orthogonal wavelet filter bank design using zero-insertion method

New regular M-band orthogonal wavelet filter bank design using zero-insertion method

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A new regular M-band orthogonal wavelet filter bank (OWFB) is designed by inserting zeros into the filter transfer functions, which improves the characteristics of the frequency magnitude response. In an application of the sub-band coding of a still image, the new OWFB improves the PSNR by ~1 dB in the reconstructed image over the existing OWFB at the same bit rate.

References

    1. 1)
      • P.N. Heller , H.L. Resnikoff . Regular M-band wavelets and applications. ICASSP93 , 229 - 232
    2. 2)
      • I. Daubechies . Orthogonal bases of compactly supported wavelets. Comm. on Pure and Applied Math. , 909 - 996
    3. 3)
      • H. Zou , A.H. Tewfik . Generalized M-band wavelet decomposition. ICASSP92 , 605 - 608
    4. 4)
      • P.P. Vaidyanathan . (1993) Multirate system and filter banks.
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