Two dimensional M-channel non-separable filter banks based on cosine modulated filter banks with diagonal shifts

Taichi Yoshida, Seisuke Kyochi, Masaaki Ikehara

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    In this paper, we propose a new class of two dimensional (2D) M-channel (M-ch) non-separable filter banks (FBs) based on cosine modulated filter banks (CMFBs) via a new diagonally modulation scheme. Until now, many researchers have proposed 2D non-separable CMFBs. Nevertheless, efficient direction-selective CMFBs have not been yet. Thanks to our new modulations with diagonal shifts, proposed CMFBs have several frequency supports including direction-selective ones which cannot be realized by conventional ones. In a simulation, we show design examples of proposed CMFBs and their various directional frequency supports.

    Original languageEnglish
    Pages (from-to)1685-1694
    Number of pages10
    JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
    VolumeE96-A
    Issue number8
    DOIs
    Publication statusPublished - 2013 Aug

    Keywords

    • Cosine modulated filter banks
    • Directional filter banks
    • Paraunitary
    • Two dimensional non-separable filter banks

    ASJC Scopus subject areas

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

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