Cosine-modulated 2 dimensional FIR filter banks satisfying perfect reconstruction

    研究成果: Conference article査読

    4 被引用数 (Scopus)

    抄録

    In this paper, I consider about the theory of cosine-modulated 2 Dimensional (2-D) perfect reconstruction (PR) Filter banks. At first, I design a 2-D digital filter with half passband obtained by the sampling matrix. Next, 2-D analysis filter banks are realized by cosine-modulating this prototype 2-D digital filter. It is shown that the modulation in 2-D frequency plane is equivalent to the 1-D modulation. An necessary and sufficient condition for 2-D perfect reconstruction filter banks is derived. If the polyphase filter pairs of the prototype filter have doubly-complement, the resulting 2-D filter bank satisfies the condition of perfect reconstruction.

    本文言語English
    論文番号390071
    ページ(範囲)III137-III140
    ジャーナルICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    3
    DOI
    出版ステータスPublished - 1994 1 1
    イベントProceedings of the 1994 IEEE International Conference on Acoustics, Speech and Signal Processing. Part 2 (of 6) - Adelaide, Aust
    継続期間: 1994 4 191994 4 22

    ASJC Scopus subject areas

    • ソフトウェア
    • 信号処理
    • 電子工学および電気工学

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