Basic characteristics of variable rate video coding in ATM environment

Mitsuru Nomura, Tetsurou Fujii, Naohisa Ohta

研究成果: Article査読

139 被引用数 (Scopus)

抄録

Basic characteristics of variable-rate video coders applied to asynchronous transfer mode (ATM) transmision are described. Burstiness of video information is evaluated for conference-type scenes using various coding algorithms. Three measures (distribution, autocorrelation, and coefficient of variation) are introduced to evaluate burstiness. Video sources are modeled and characterized by the autoregressive process and coefficient of variation. Video quality improvement achieved with variable rate transmission is evaluated using signal-to-noise ratio (SNR) and subjective ratings. An improvement of 5-10 dB in temporal SNR and 1 rank in mean opinion score are reported.

本文言語English
ページ(範囲)752-760
ページ数9
ジャーナルIEEE Journal on Selected Areas in Communications
7
5
DOI
出版ステータスPublished - 1989 6

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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