Abstract
The floating-point implementation of a CDF-9-7 wavelet transform with irrational coefficients on a resource limited hardware platform is a challenging task. This paper presents a new design method of 9-7 biorthogonal wavelet filter bank (FB) based on classical Fourier theory, the so-called odd harmonic function (OHF) analysis. Three types of binary rational 9-7 biorthogonal wavelet FBs have been derived, considering vanishing moments in addition to the rationality of filter coefficients. The extensive experiments for the implementation of the new design on the SPIHT (Set Partitioning In Hierarchical Trees) platform have been conducted and the results show that the performance of the proposed new biorthogonal FBs is equal to, or in several cases outperforms the, CDF-9-7 FB.
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Jiazhong, C., Weixue, G., Zengwei, J. et al. A New Design Method of 9-7 Biorthogonal Filter Banks Based on Odd Harmonic Function. Circuits Syst Signal Process 31, 1245–1255 (2012). https://doi.org/10.1007/s00034-011-9372-z
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DOI: https://doi.org/10.1007/s00034-011-9372-z