| Paper: | SPTM-P11.7 | ||
| Session: | Filter Banks and Subband Coding | ||
| Time: | Friday, May 21, 09:30 - 11:30 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing Theory and Methods: Multi-rate Signal Processing & Wavelets | ||
| Title: | DYADIC-BASED STRUCTURE FOR REGULAR BIORTHOGONAL FILTER BANKS WITH LINEAR PHASE | ||
| Authors: | Ying-Jui Chen; Massachusetts Institute of Technology | ||
| Soontorn Oraintara; University of Texas, Arlington | |||
| Kevin Amaratunga; Massachusetts Institute of Technology | |||
| Abstract: | The purpose of this paper is twofold: one is to establish a framework for general biorthogonal filter banks (BOFBs) with structural regularity; the other is to identify the connection between the general structure used here and the one commonly used for linear-phase biorthogonal filter banks (a.k.a. generalized lapped biorthogonal transform or GLBT). The latter also leads naturally to the same reduced number of free parameters as GLBT. We first revisit a minimal structure of BOFBs using order-one dyadic-based building blocks, by which BOFBs with length constraint can be designed. Conditions for filter bank regularity on the dyadic-based structure are derived and specialized to the case of GLBT. Design examples are presented. | ||
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