Structurally regular integer discrete cosine transform for low-bit-word-length coefficients

Taizo Suzuki, Masaaki Ikehara

    研究成果: Conference contribution

    1 被引用数 (Scopus)

    抄録

    This paper presents an IntDCT with only dyadic values such as k/2 n (k, n ∈ ℕ). Although some IntDCTs have been proposed, they are unsuitable for lossless-to-lossy image coding in low-bit-word-length (coefficients). First, the proposed M-channel lossless WHT (LWHT) can be constructed by only (log2 M)-bit-word-length and has structural regularity. Then, our 8-channel IntDCT keeps good coding performance even in low-bit-word-length because LWHT, which is main part of IntDCT, can be implemented by 3-bit-word-length. Finally, our method is validated in lossless-to-lossy image coding.

    本文言語English
    ホスト出版物のタイトルISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems
    ホスト出版物のサブタイトルNano-Bio Circuit Fabrics and Systems
    ページ1607-1610
    ページ数4
    DOI
    出版ステータスPublished - 2010 8 31
    イベント2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 - Paris, France
    継続期間: 2010 5 302010 6 2

    出版物シリーズ

    名前ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems

    Other

    Other2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
    CountryFrance
    CityParis
    Period10/5/3010/6/2

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Electrical and Electronic Engineering

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