オーディオビジュアルシステムの標準化動向 : 画像通信システム : テレコンファレンスおよび画像一般

抄録

Worldwide deployment of ISDN is providing a good opportunity for providing such audiovisual (AV) services as videoconferencing, videophone, audiographic conference. CCITT Study Group XV has been establishing a harmonized set of Recommendations far AV communication systems, cooperating with Study Groups I and VIII, and recently succeeded in producing five Recommendations; H.221, 230, 242, 261 and 320, This paper presents the framework for the AV Recommendations and outlines technical features of each Recommendation.