30 October 1997 Review of recent results on optimal orthonormal subband coders
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The conditions for optimality of uniform orthonormal subband coders are reviewed. A number of properties of optimal filter banks are then summarized. The case of nonuniform orthonormal filter banks is also considered, and it is shown that the well known connection between optimal coding gain, energy compaction, and principle component property does not extend to the nonuniform case.
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Palghat P. Vaidyanathan, Palghat P. Vaidyanathan, } "Review of recent results on optimal orthonormal subband coders", Proc. SPIE 3169, Wavelet Applications in Signal and Image Processing V, (30 October 1997); doi: 10.1117/12.279683; https://doi.org/10.1117/12.279683

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