16 September 1996 Signal extensions in perfect reconstruction filter banks
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The wavelet transform is defined for infinite-length signals. In practice we only have finite-length signals, so signals must be extended before they can be transformed. The question is how to extend the signal to minimize signal end effects, or how to find the signal extension that preserves the transform signal length. In this paper we discuss the problem of signal extension in perfect reconstruction filter banks.
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Joao Carlos Silvestre, Joao Carlos Silvestre, Luis A. S. V. de Sa, Luis A. S. V. de Sa, } "Signal extensions in perfect reconstruction filter banks", Proc. SPIE 2952, Digital Compression Technologies and Systems for Video Communications, (16 September 1996); doi: 10.1117/12.251274; https://doi.org/10.1117/12.251274

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