The authors exploit a number of issues in multidimensional (MD) filter bank design, including the choice of permissible passband supports, the cyclic property of decimation matrices required for filter bank design using transformations, etc. A class of useful tree-structure filter banks is proposed. These filter banks apply to the commonly-used hexagonal decimation.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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Chen et al. (2002) studied this question.
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