Factorization of nonuniform block orthogonal transforms

Takayuki Nagai, Shigeki Obata, Masaki Ikehara

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Block orthogonal transforms (BOTs) are commonly used for lots of applications. Conventional BOTs are based on uniform filter banks, however, nonuniform BOTs are often superior to uniform ones. In this research, we investigate the factorization of nonuniform BOTs which does not involve the tree structure. Therefore, optimal nonuniform BOTs are available in the sense of transform coding gain. Some design examples are included to confirm our theory. We also apply the nonuniform BOT to the transform image coding.

    Original languageEnglish
    Title of host publicationProceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1449-1452
    Number of pages4
    ISBN (Print)0780344286, 9780780344280
    DOIs
    Publication statusPublished - 1998 Jan 1
    Event1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998 - Seattle, WA, United States
    Duration: 1998 May 121998 May 15

    Publication series

    NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    Volume3
    ISSN (Print)1520-6149

    Conference

    Conference1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
    CountryUnited States
    CitySeattle, WA
    Period98/5/1298/5/15

    ASJC Scopus subject areas

    • Software
    • Signal Processing
    • Electrical and Electronic Engineering

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