Fully-parallel vector quantization processor for real-time motion picture compression

Tadashi Shibata, Akira Nakada, Masahiro Konda, Tatsuo Morimoto, Tadahiro Ohmi, Hiroyuki Akutsu, Akinobu Kawamura, Kyoji Marumoto

    Research output: Contribution to journalConference articlepeer-review

    9 Citations (Scopus)

    Abstract

    A fully parallel vector quantization (VQ) chip is applied to real-time compression of motion pictures due to its simple decoding algorithm. This processor chip minimizes clock cycles for a single VQ operation and has a versatile code book. In the VQ image compression algorithm, a micro-block of 4×4 pixels is approximated by the most similar pattern in the code book, and only the pattern code is transmitted. The receiver can retrieve the image by pasting corresponding patterns taken from the code book, enabling a simple decoding procedure in software. The VQ processor features and three competition stages all in parallel for vector matching search of the entire 2 k code-book vectors are also discussed.

    Original languageEnglish
    Pages (from-to)270-271
    Number of pages2
    JournalDigest of Technical Papers - IEEE International Solid-State Circuits Conference
    Volume40
    Publication statusPublished - 1997 Feb 1
    EventProceedings of the 1997 IEEE International Solid-State Circuits Conference, ISSCC - San Francisco, CA, USA
    Duration: 1997 Feb 61997 Feb 8

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering

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