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Personal Telepresence - The next generation of Video Communication

Published By: Vidyo, Inc.
Vidyo, Inc.
Published:  Jul 17, 2009
Length:  6 pages

Many things do not work in legacy video conferencing. In previous years, the costs of computing for encoding and decoding in video conferencing were high. Hence, groups of people gathered in a room to share a video conferencing system. They sat around a conference table with a video camera and a screen and were connected to a similarly equipped remote conference room. The room system camera was typically set to capture everyone in the room and the meeting participants in the same room frequently faced each other instead of the camera and receiving display, leaving remote participants feeling disconnected from the conversation. For reliable transmission in such legacy systems, expensive dedicated networks or quality of service enhanced bandwidth has to be used.  

If the meeting called for a third endpoint to join, a costly Multipoint Control Unit (MCU) was required to perform transcoding for all connected parties. Transcoding at the MCU not only degraded the image quality of the video, but also introduced considerable latency in the video stream, resulting in unnatural communication experiences. Overall, the experience of the users of these legacy video conferencing systems was such that they often decided to just stick with audio calls, leaving the expensive video conferencing equipment commonly unused  

Some of the above problems have been solved by Telepresence systems. Telepresence systems were designed to provide natural, reliable, high quality visual communication with very low latency. The architects of these systems realized that the transcoding MCU had to be eliminated. They replaced the MCU with high speed video switches. Additionally, to provide more natural communication, there is a one to one participant to camera ratio such that the participant is positioned closer to, and facing, the video capture device and receiving display  

However, telepresence systems are very expensive, require dedicated lines and most of all, you cannot take them with you when you travel. At the current price points for these systems, even the largest organizations will not be able to achieve universal access throughout the organization. The video switches that replace the MCU rely upon expensive, nearly lossless, networks to provide the quality and reliability users demand. The fixed location of the endpoints requires a participant to travel to the specific destination to participate The solution is Vidyo Personal Telepresence. Personal Telepresence VidyoRouter™ based systems combine the quality of telepresence with the convenience and universal access of web conferencing, providing high quality, low latency communication over general purpose IP networks, like the Internet, at price points that make it possible to deploy to every desktop in an organization. 

Tagsvidyo, telepresence, video communication, communication, mcu, h.264, svc, avc