On the rate-distortion efficiency of subband coding

  title={On the rate-distortion efficiency of subband coding},
  author={Thomas R. Fischer},
  journal={IEEE Trans. Information Theory},
It is shown that for the realizable subband coding of a wide sense stationary Gaussian source, with the implied separate encoding of the subband signals, the encoding performance is generally inferior to the rate-distortion function of the source. It is established that, for small encoding distortion, except for special cases, the subband coding is generally suboptimum. > 

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