Simplified realization of normalized integer WHT for multiplierless integer DCT

Taizo Suzuki, Masaaki Ikehara

    研究成果: Conference contribution

    抄録

    Walsh-Hadamard transform (WHT) based multiplierless integer discrete cosine transform (IntDCT) has structural regularity even in short word length lifting coefficients. It, however, cannot apply to image coding without the quantization part because WHT was implemented by only 1 adder operations without the normalization scaling factors. Although we have already presented a normalized integer WHT (IntWHT) as its solution, it also has many adder operations. In this paper, using a two-dimensional (2-D) separable transform of one-dimensional (1-D) normalized WHT is applied to each lifting coefficient, we present a more simplified realization of normalized IntWHT with structural regularity for short word length lifting coefficients. Finally, in lossless-to-lossy image coding, IntDCT based on the proposed IntWHT is validated.

    本文言語English
    ホスト出版物のタイトル2011 Digital Signal Processing and Signal Processing Education Meeting, DSP/SPE 2011 - Proceedings
    ページ472-476
    ページ数5
    DOI
    出版ステータスPublished - 2011 4 21
    イベント2011 Digital Signal Processing and Signal Processing Education Meeting, DSP/SPE 2011 - Sedona, AZ, United States
    継続期間: 2011 1 42011 1 7

    出版物シリーズ

    名前2011 Digital Signal Processing and Signal Processing Education Meeting, DSP/SPE 2011 - Proceedings

    Other

    Other2011 Digital Signal Processing and Signal Processing Education Meeting, DSP/SPE 2011
    CountryUnited States
    CitySedona, AZ
    Period11/1/411/1/7

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Signal Processing
    • Education

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