An architecture for a modular videoconferencing terminal supporting video cell loss

Author

Parish, D.J. ; Phillips, I.W. ; Coventry, P. ; Chia, L.T. ; Griffiths, J.W.R. ; Tagg, A.G. ; Shrimpton, D.

Author_Institution

Dept. of Electron. & Electr. Eng., Loughborough Univ. of Technol., UK

Volume

9

Issue

3

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

137

Lastpage

142

Abstract

A configurable architecture for a low-cost videoconferencing terminal usable on an ATM network has been developed which provides a high degree of performance in a modular manner. Considerable research has been conducted in order to provide support for the loss of any compressed video which is transferred between such terminals. This work enables lost video to be concealed using a simple processing algorithm operating only on the received data. Additional features, such as multiparty conferencing support, can be added if required to adapt the terminal to both the users´ needs and the underlying network capabilities. An example terminal was designed and built to demonstrate the architecture. This was based on a PC with additional hardware support for video and networking functions

Keywords

asynchronous transfer mode; data compression; teleconferencing; video coding; ATM network; compressed video; configurable architecture; modular videoconferencing terminal; multiparty conferencing support; network capabilities; networking functions; processing algorithm; video cell loss;

fLanguage

English

Journal_Title

Electronics & Communication Engineering Journal

Publisher

iet

ISSN

0954-0695

Type

jour

DOI

10.1049/ecej:19970308

Filename

599234