Theory and design of multidimensional QMF sub-band filters from 1-D filters and polynomials using transforms
作者:
I.A.Shah,
A.A.C.Kalker,
期刊:
IEE Proceedings I (Communications, Speech and Vision)
(IET Available online 1993)
卷期:
Volume 140,
issue 1
页码: 67-71
年代: 1993
DOI:10.1049/ip-i-2.1993.0010
出版商: IEE
数据来源: IET
摘要:
The general theory of designing multidimensional quadrature mirror filters (QMF) for use in sub-band coding systems using the McClellan transform [1] is presented. It was recently shown that the McClellan transform could be used to generate 2-D diamond-shape QMF filters [2]. The proofs of the diamond-shape case are formalised and generalise to other shapes, sampling rasters and dimensions. It is possible and even more convenient to design QMF filter banks by performing transformations on a class of real-valued polynomials. Examples are given of two-dimensional diamond and fan-shape filters and three-dimensional tetrad filters designed using this transformation technique.
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