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A Simplified Lattice Structure of Two Dimensional Generalized Lapped Orthogonal Transform

Taichi YOSHIDA, Seisuke KYOCHI, Masaaki IKEHARA

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Summary :

In this paper, we propose a novel lattice structure of two dimensional (2D) nonseparable linear-phase paraunitary filter banks (LPPUFBs) called 2D GenLOT. Muramatsu et al. have previously proposed a lattice structure of 2D nonseparable LPPUFBs which have efficient frequency response. However, the proposed structure requires less number of design parameters and computational costs than the conventional one. Through some design examples and simulation results, we show that both filter banks have comparable frequency response and coding gain.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E94-A No.2 pp.671-679
Publication Date
2011/02/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E94.A.671
Type of Manuscript
PAPER
Category
Digital Signal Processing

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