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Design of IIR orthogonal wavelet filter banks using lifting scheme

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4 Author(s)
Xi Zhang ; Dept. of Inf. & Commun. Eng., Univ. of Electro-Commun., Tokyo ; Wei Wang ; Yoshikawa, T. ; Takei, Y.

The lifting scheme is well known to be an efficient tool for constructing second generation wavelets and is often used to design a class of biorthogonal wavelet filter banks. For its efficiency, the lifting implementation has been adopted in the international standard JPEG2000. It is known that the orthogonality of wavelets is an important property for many applications. This paper presents how to implement a class of infinite-impulse-response (IIR) orthogonal wavelet filter banks by using the lifting scheme with two lifting steps. It is shown that a class of IIR orthogonal wavelet filter banks can be realized by using allpass filters in the lifting steps. Then, the design of the proposed IIR orthogonal wavelet filter banks is discussed. The designed IIR orthogonal wavelet filter banks have approximately linear phase responses. Finally, the proposed IIR orthogonal wavelet filter banks are applied to the image compression, and then the coding performance of the proposed IIR filter banks is evaluated and compared with the conventional wavelet transforms

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Signal Processing, IEEE Transactions on  (Volume:54 ,  Issue: 7 )