A constant rate bandwidth reduction architecture with adaptive compression mode decision for video decoding

Liu Song*, Dajiang Zhou, Xin Jin, Satoshi Goto

*この研究の対応する著者

    研究成果: Conference contribution

    6 被引用数 (Scopus)

    抄録

    The high definition video capture and playback is becoming increasingly popular in battery-operated handheld devices. Video coding standards like H.264/AVC achieves high coding efficiency but increases the system power consumption which is limited for battery-operated devices. This paper proposes a new adaptive external memory bandwidth reduction scheme to reduce power consumption. An efficient memory organization and a variable length coding scheme is embedded in this scheme. Moreover, an adaptive compression strategy is proposed to adaptively choose the best mode for reference frame compression. The adaptive mode decision unit optimizes the compression mode according to the bandwidth availabilities and image pattern complexity. Experimental results show that the proposed scheme achieves up to 70% bandwidth savings with 1∼2dB image quality losses.

    本文言語English
    ホスト出版物のタイトルEuropean Signal Processing Conference
    ページ2017-2021
    ページ数5
    出版ステータスPublished - 2010
    イベント18th European Signal Processing Conference, EUSIPCO 2010 - Aalborg, Denmark
    継続期間: 2010 8 232010 8 27

    Other

    Other18th European Signal Processing Conference, EUSIPCO 2010
    国/地域Denmark
    CityAalborg
    Period10/8/2310/8/27

    ASJC Scopus subject areas

    • 信号処理
    • 電子工学および電気工学

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