Telepresence
Telepresence is enabling human interaction at a distance, creating a sense of being present at a remote location. In the next millennium we are certain to be increasingly `telepresent' both at work and at play, with an expanding market for telepresence se
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BT Telecommunications Series The BT Telecommunications Series covers the broad spectrum of telecommunications technology. Volumes are the result of research and development carried out, or funded by, BT, and represent the latest advances in the field. The series includes volumes on underlying technologies as well as telecommunications. These books will be essential reading for those in research and development in telecommunications, in electronics and in computer science.
1. Neural Networks for Vision, Speech and Natural Language Edited by R Linggard, D J Myers and C Nightingale 2. Audiovisual Telecommunications Edited by N D Kenyon and C Nightingale 3. Digital Signal Processing in Telecommunications Edited by F A Westall and S F A Ip 4. Telecommunications Local Networks Edited by W K Ritchie and J R Stem 5. Optical Network Technology Edited by D W Smith 6. Object Oriented Techniques in Telecommunications Edited by E L Cusack and F S Cordingley 7. Modelling Future Telecommunications Systems Edited by P Cochrane and D J T Heatley 8. Computer Aided Decision Supportin Telecommunications Edited by P G Flavin and K A F Toffon 9. Multimedia Telecommunications Edited by W S Whyte 10. Network Intelligence Edited by I G Dufour 11. Speech Technology for Telecommunications Edited by F A Westall, R D Johnston and A V Lewis 12. Mobile Systems Edited by I Groves 13. ATM for Service Providers Edited by J Adams 14. Computing Systems for Global Telecommunications Edited by S West, M Norris and S Stockman 15. The Internet and Beyond Edited by S Sim and J Davies
TELEPRESENCE Edited by
P. J. Sheppard and G. R. Walker B. T. Laboratories,
u.K.
SPRINGER SCIENCE+BUSINESS MEDIA, BV
A C.I.P. Catalogue record for this book is available from the Library of Congress.
ISBN 978-1-4615-5291-8 (eBook) ISBN 978-1-4613-7414-5 DOI 10.1007/978-1-4615-5291-8
Printed on acid-free paper
AII Rights Reserved
© 1999 Springer Science+Business Media Dordrecht Originally published by Kluwer Academic Publishers in 1999 Softcover reprint ofthe hardcover 1st edition 1999 No part of the material protected by this copyright notice may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording or by any information storage and retrieval system, without written permission from the copyright owner.
Contents Contributors Preface, Graham Walker and Phil Sheppard
1
vii ix
Telepresence - the future of telephony G R Walker and P J Sheppard
2
The evolution of conferencing
14
I Parke
3
Unattended audio conferencing
27
D L Gibson, D Pauley and L Willis
4
Spatial audio technology for telepresence
40
M P Hollier, A N Rimell and D Burraston
5
Desktop conversations - the future of multimedia conferencing
57
MRuss
6
Conferencing on the Internet
74
P Cordell, M Courtenay and S Rudkin
7
Whither video? - pictorial culture and telepresence
99
A V Lewis and G Cosier
8
Video coding - techniques, standards and applications
142
M W Whybray, D G Morrison and P J Mulroy
9
Evaluating the n
