Fast DSP implementation of JPEG2000

Jun Ki Cho, Min Cheol Hwang, Jin Sam Kim, Byeong Doo Choi, Sung Jea Ko

    Research output: Contribution to conferencePaperpeer-review

    5 Citations (Scopus)

    Abstract

    Discrete wavelet transform (DWT) and the embedded block coding with optimized truncation (EBCOT) are two major parts of computational load in JPEG2000, the latest image-coding standard. In this paper, we propose two efficient methods to reduce the processing time of these pans. First, the overlapped block-based lifting scheme reduces the processing time of DWT by increasing a cache hit-rate to the utmost. The overlapped block-based lifting scheme partitions an entire image into blocks to fit into the cache size and reorders the sequence of the wavelet lifting. Second, we propose the parallel-pass architecture to improve Tier 1 coding of EBCOT. This method processes the three coding passes of the same bit-plane in parallel.

    Original languageEnglish
    PagesA231-A234
    Publication statusPublished - 2004
    EventIEEE TENCON 2004 - 2004 IEEE Region 10 Conference: Analog and Digital Techniques in Electrical Engineering - Chiang Mai, Thailand
    Duration: 2004 Nov 212004 Nov 24

    Other

    OtherIEEE TENCON 2004 - 2004 IEEE Region 10 Conference: Analog and Digital Techniques in Electrical Engineering
    Country/TerritoryThailand
    CityChiang Mai
    Period04/11/2104/11/24

    ASJC Scopus subject areas

    • Computer Science Applications
    • Electrical and Electronic Engineering

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