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Quadrature-mirror-filter design for the subband coding of digital video signals

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4 Author(s)

The paper firstly reviews the basic two-channel subband coding system and its implementation using both quadrature mirror filter (QMF) and conjugate quadrature filter (CQF) designs. Their features and performance characteristics for the one-dimensional case are examined and then using the principle of separability, 2-D QMF-CQF implementations are constructed, as the product of two l-D transfer functions. Examples of 2-D QMF-CQFs in band-splitting configurations for video applications are explored and discussed

Published in:
Digital and Analogue Filters and Filtering Systems, IEE 15th SARAGA Colloquium on

Date of Conference: 30 Nov 1995

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