A measure of near-orthogonality of PR biorthogonal filter banks

@inproceedings{SaintMartin1995AMO,
  title={A measure of near-orthogonality of PR biorthogonal filter banks},
  author={F. Moreau de Saint-Martin and Albert Cohen and Pierre Siohan},
  booktitle={ICASSP},
  year={1995}
}
We study the non-orthogonality of perfect-reconstruction (PR) biorthogonal filter banks by measuring the energy preservation between the spatial and transform domains. The mathematical formulation of that issue leads to the computation of the Riesz constants, and a more relevant modelization leads to a measure of nearorthogonality which is well suited for image compression systems based on filter banks. This provides a criterion for the validity of the energy preservation approximation: we can… CONTINUE READING
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