Method and apparatus for visual communications in a scalable net

Details Method and apparatus for visual communications in a scalable net Method and apparatus for visual communications in a scalable net

1994-11-03

1998-10-13

Kuntz, Curtis A.

Television

Two-way video and voice communication

User positioning

348 15, 379 9321, H04N 714

Patent

active

058219862

ABSTRACT:
A method and apparatus for providing a flexible and scalable videoconferencing system for use in connection with a network provides for scalably encoding an image sequence for transmission onto the network. The encoding enables the encoded image sequence to be decoded at any one of at least two spatial resolutions and any one of at least two frame rates. The decoder, depending upon the computing platform, its resources, speed, and efficiencies, can select to decode the received image at any of the available spatial resolutions and at any of the available frame rates. A lower spatial resolution and/or a lower frame rate require less computing resources. Multiple received image sequences can be decoded simultaneously, at, for example, a lowest resolution. The decoded images can be displayed for viewing on the computer monitor at the desired spatial resolution level and frame rate.

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