A simplified lattice structure of two dimensional Generalized lapped orthogonal transform

Taichi Yoshida, Seisuke Kyochi, Masaaki Ikehara

    Research output: Contribution to journalArticlepeer-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 languageEnglish
    Pages (from-to)671-679
    Number of pages9
    JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
    VolumeE94-A
    Issue number2
    DOIs
    Publication statusPublished - 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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