A lossless frame recompression scheme for reducing DRAM power in video encoding

Xuena Bao, Dajiang Zhou, Satoshi Goto

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

    28 Citations (Scopus)

    Abstract

    Owing to the huge bandwidth requirement, the DRAM power composes a significant portion of the power consumed by video coding system. In this paper, a lossless frame recompression scheme for reducing DRAM bandwidth is presented. The basic structure of the scheme which includes the memory organization, the data fetching strategy as well as the cache organization is proposed. Furthermore, an adaptive DPCM (Differential Pulse Code Modulation) scanning order selection is used and an efficient coding method that is suitable for compressing the DPCM samples in reference frames is also discussed. Experimental results show a 50%~60% saving of bandwidth on 720p and 1080p sequences, which indicates that the proposed scheme can be useful in reducing the system power through saving DRAM bandwidth.

    Original languageEnglish
    Title of host publicationISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems
    Pages677-680
    Number of pages4
    DOIs
    Publication statusPublished - 2010
    Event2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 - Paris
    Duration: 2010 May 302010 Jun 2

    Other

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

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    ASJC Scopus subject areas

    • Hardware and Architecture
    • Electrical and Electronic Engineering

    Cite this

    Bao, X., Zhou, D., & Goto, S. (2010). A lossless frame recompression scheme for reducing DRAM power in video encoding. In ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems (pp. 677-680). [5537495] https://doi.org/10.1109/ISCAS.2010.5537495