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 services. As we move from a physical to an information economy, demand will grow for services which transport bits not atoms and which support the output of the human mind. Moreover, technology continues to advance at an unprecedented rate, and it could be suggested that we are reaching key breakpoints in client processing power and global network interconnectivity. In practice, telepresence systems utilise a very wide range of technologies. In compiling this book the editors have included chapters from across these technologies which they have broadly classified as audio, data, video and virtual environments. Telepresence gives a flavour of the exciting developments in telepresence and teleconferencing technologies being researched and developed within BT. Just as the telephone began changing the world a century ago, so will telepresence one day alter the way we live, think, do business and react to the world around us. The potential for these technologies is staggering, the implications mind-boggling. Building on a strong base of established audiovisual conferencing and interactive multimedia services, BT and MCI are leading the way in defining the commercial applications of telepresence that will shape the future of global telecommunication. Telepresence is a snapshot of these groundbreaking activities and conveys the complexity, uncertainty and enthusiasm involved in this challenging and exciting work. It is essential reading for all researchers, engineers and managers working in this stimulating field.
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The evolution of conferencing
Unattended audio conferencing
Spatial audio technology for telepresence
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algorithm allows ambisonic applications audioconferencing aura avatar bandwidth behaviour bit rate BT Laboratories camera chapter client coding collaborative communication compression Concept conference conferencing connection CVEs dealer decoder delay desk desktop desktop conferencing developed display dynamic effective emotion encoder error example facial expressions graphics HRTFs IETF immersive implementation important interaction interface Internet ISDN ITU-T kbit/s MASSIVE-1 meeting moving multicast multimedia multipoint natural presence network traffic objects Passepartout perception performance pixels player potential prediction present protocol PSTN quantization real-time remote remote consultant scalability screen server set-up shared signal sound space spatial audio spatial sound speech standard task techniques telecommunications teleconferencing Telemedicine telephone telepresence telepresence services television terminal transmission videoconference videoconferencing videotelephony virtual environments virtual human virtual reality virtual world VisionDome visual