2 Dimensional recursive orthogonal wavelet transformation

Hiromichi Yasuoka, Masaaki Ikehara

    Research output: Contribution to journalConference articlepeer-review


    The design of 2-Dimensional (2-D) recursive orthogonal wavelet based on iterated filter banks is investigated. To obtain orthogonal wavelet, we use the parallel connection of some delays and 2-D allpass filter. In this case, a pair of digital filters with orthogonal is obtained structurally and digital filters with arbitrarily orders can be designed. Furthermore a maximum number of zeros is put at aliasing frequencies in the lowpass filter to obtain regularity of the wavelet. Design examples of discrete scaling and wavelet functions are presented throughout.

    Original languageEnglish
    Article number389858
    Pages (from-to)IV113-IV116
    JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    Publication statusPublished - 1994 Jan 1
    EventProceedings of the 1994 IEEE International Conference on Acoustics, Speech and Signal Processing. Part 2 (of 6) - Adelaide, Aust
    Duration: 1994 Apr 191994 Apr 22

    ASJC Scopus subject areas

    • Software
    • Signal Processing
    • Electrical and Electronic Engineering


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