Flexible tree-structured signal expansions using time-varying wavelet packets

Abstract

In this paper we address the problem of nding the best time-varying lter bank tree-structured representation for a signal. The tree is allowed to vary at regular intervals, and the spacing of these changes can be arbitrarily short. The question of how to choose tree-structured representations of signals based on lter banks has attracted considerable… (More)
DOI: 10.1109/78.554299

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