Naoki Mukawa*, Hideo Hashimoto, Yoichi Kato, Sakae Okubo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Standardization work in CCITT for 384 kbit/s videoconferencing codecs has been actively pursued internationally. NTT has contributed to this work. A specification of the flexible hardware was formulated for verifying the algorithm, improving it and optimizing coding parameters. This paper describes the hardware which conforms to the CCITT Flexible Hardware specification. Coding algorithm, equipment design and performance of this equipment are described. Experiments show that it gives sufficient picture quality for videoconferencing service.

Original languageEnglish
Pages (from-to)245-252
Number of pages8
JournalDenki Tsushin Kenkyujo kenkyu jitsuyoka hokoku
Issue number3
Publication statusPublished - 1988
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering


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