High efficiency 64 kb/s video codec based on a hybrid quantization

Takashi Itoh*, Osamu Kawai, Kiichi Matsuda, Toshitaka Tsuda, Toshihiro Homma, Noriaki Ohuchi

*Corresponding author for this work

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


    The authors discuss an experimental 64-kb/s video codec that transmits still and motion pictures in several coding modes. In previous work (1986), they proposed a coding scheme, tailored to 384-kb/s transmission, that used motion-compensated prediction and hybrid quantization and a 64-kb/s video codec design concept having several coding modes. Here, they detail the computer simulation used to check the proposed coding scheme's efficiency at 64 kb/s. They then describe the hardware architecture that implements the design concept. The performance of the video codec is then demonstrated in different coding modes.

    Original languageEnglish
    Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems
    Place of PublicationPiscataway, NJ, United States
    PublisherPubl by IEEE
    Number of pages4
    ISBN (Print)9517212410
    Publication statusPublished - 1988

    ASJC Scopus subject areas

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


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