The AVIS project: a mixed communication/interactive/broadcast teleconferencing system

Author

Avaro, O. ; Lemordant, J.

Author_Institution

PAB/STC/SGV, CNET, Paris, France

fYear

1997

fDate

24-27 Nov 1997

Firstpage

38

Lastpage

43

Abstract

There is now no clear distinction between the three traditionally distinct service models: communication, interactive and broadcast. These service models can be mapped on the telecommunication, information technology and entertainment sectors, respectively. MPEG-4 is a proposed standard that supports all of these service models and consequently allows mixed models to be built. This paper presents the architecture of a mixed communication/interactive/broadcast teleconferencing system based on a data flow model and MPEG-4 tools. The management of the distributed audio and video sources is done using an ATM network. Faces of the participants to the conference are analyzed in real-time using computer vision techniques and clones are locally synthesized using computer graphics tools. Video and audio spatialization are based on experience drawn from the entertainment sector. Immersive aspects are implemented using MPEG-4 tools

Keywords

asynchronous transfer mode; code standards; computer graphics; computer vision; data flow computing; interactive television; multimedia communication; telecommunication computing; telecommunication networks; telecommunication standards; teleconferencing; television broadcasting; video coding; ATM network; AVIS project; MPEG-4; MPEG-4 tools; audio sources management; broadcast teleconferencing system; clones; computer graphics tools; computer vision techniques; data flow model; entertainment; information technology; interactive system; multimedia system; service models; video sources management; Broadcasting; Computer architecture; Computer network management; Computer vision; Face detection; Information technology; MPEG 4 Standard; Multimedia communication; Teleconferencing; Videoconference;

fLanguage

English

Publisher

ieee

Conference_Titel

Protocols for Multimedia Systems - Multimedia Networking, 1997. Proceedings., IEEE Conference on

Conference_Location

Santiago

Print_ISBN

0-8186-7916-6

Type

conf

DOI

10.1109/PRMNET.1997.638878

Filename

638878