Design of 2‐D perfect reconstruction filter banks for arbitrary sampling lattices—design of 2‐D N‐th‐band digital filters

Masaaki Ikehara, Kiyoshi Sawada, Hiroyuki Isobe, Akinobu Yamashita, Hideo Kuroda

    Research output: Contribution to journalArticle

    Abstract

    This paper presents a design method of two‐dimensional (2‐D) perfect reconstruction filter banks for arbitrary sampling lattices. First, a design of 2‐D N‐th‐band digital filters with arbitrary sampling lattices is shown. Next, the relation between the sampling matrix and the number of paths is presented and the band‐limited region and the condition of delays are defined. From these conditions, the approximation problem is shown of the 2‐D allpass filter whose 2‐D N‐th‐band filter is composed and the characteristics of 2‐D N‐th‐band filters are explained. Then 2‐D analysis banks consist of 2‐D discrete Fourier transform (DFT) and 2‐D N‐th‐band filter which consists of some delays and 2‐D interpolated allpass networks. To achieve the perfect reconstruction, by evaluating the aliasing component matrix, it is shown that the synthesis banks can also be constructed the same as the analysis bank.

    Original languageEnglish
    Pages (from-to)85-94
    Number of pages10
    JournalElectronics and Communications in Japan (Part III: Fundamental Electronic Science)
    Volume76
    Issue number12
    DOIs
    Publication statusPublished - 1993

    Keywords

    • 2‐D N‐th‐band filter
    • Synthesis banks
    • analysis bank
    • decimation

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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