A simplified lattice structure of two dimensional Generalized lapped orthogonal transform

Taichi Yoshida; Seisuke Kyochi; Masaaki Ikehara

doi:10.1587/transfun.E94.A.671

A simplified lattice structure of two dimensional Generalized lapped orthogonal transform

Taichi Yoshida, Seisuke Kyochi, Masaaki Ikehara

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	671-679
Number of pages	9
Journal	IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Volume	E94-A
Issue number	2
DOIs	https://doi.org/10.1587/transfun.E94.A.671
Publication status	Published - 2011 Feb

Keywords

Linear-phase
Paraunitary
Two dimensional nonseparable filter banks

ASJC Scopus subject areas

Signal Processing
Computer Graphics and Computer-Aided Design
Electrical and Electronic Engineering
Applied Mathematics

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AB - 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.

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