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Perfect Reconstruction IIR Digital Filter Banks Supporting Nonexpansive Linear Signal Extensions

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1 Author(s)
Sezen, U. ; Dept. of Electr. & Electron. Eng., Hacettepe Univ. Beytepe, Ankara

In this paper, perfect reconstruction polyphase infinite impulse response (IIR) filter banks involving causal and anticausal inverses are examined for finite-length signals. First, a novel and efficient nonexpansive perfect reconstruction algorithm based on the state-space implementation is presented. Then the proposed method is extended to support linear signal extensions at the boundaries in a nonexpansive manner. The powerfulness of the proposed algorithm is demonstrated with the image compression results.

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Signal Processing, IEEE Transactions on  (Volume:57 ,  Issue: 6 )