System and method for improved view layout management in scalable video and audio communication systems
AssigneeVidyo, Inc.
InventorsAlexandros Eleftheriadis, James P. Adragna
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Abstract
A system and method for transmitting a plurality of video signals scalably coded into layers including a base layer and one or more enhancement layers and associated audio signals, if any, over a communication network for presentation to one or more end users. A layout to display the plurality of video signals is determined based on a set of criteria and only the data of the video signal layers that are necessary for displaying the video signals in the determined layout, and any associated audio signals, is selectively transmitted over the communication network.
Claims41
An audiovisual communication system for transmitting a plurality of video signals and associated audio signals, if any, over a communication network for presentation to one or more end users, wherein the video signals are scalably coded into layers including a base layer and one or more enhancement layers, the system comprising:
- a receiver configured to receive the plurality of video and any associated audio signals over the communication network, determine a layout for the displayed video signals based on a set of criteria, and communicate information about the determined layout;
- a display, connected to the receiver, configured to display one or more of the received video signals using the determined layout;
- and
- one or more servers, connected to the communication network, adapted to receive the information about the determined layout, and confi gured to transmit the plurality of video and any associated audio signals over the communication network;
- wherein the one or more servers are configured to selectively transmit, for each of the plurality of video signals, no layers, the base layer, or the base layer and one or more enhancement layers, if any, that are necessary for displaying the video signals in the determined layout.
A method for transmitting a plurality of video signals scalably coded into layers including a base layer and one or more enhancement layers and associated audio signals, if any, over a communication network for presentation to one or more end users, comprising:
- determining a layout to display the plurality of video signals based on a set of criteria;
- communicating information about the determined layout;
- and
- selectively transmitting only the data of the video signal layers that are necessary for displaying the video signals in the determined layout and any associated audio signals;
- receiving the selectively transmitted data;
- and
- displaying the plurality of video signals utilizing the determined layout.
A system for presenting a plurality of video signals and associated audio signals, if any, received over a communication network from one or more servers, and wherein the video signals are scalably coded into layers including a base layer and one or more enhancement layers, comprising:
- a receiver configured to:
- receive the plurality of video and any associated audio signals from the communication network;
- determine a layout for the display of one or more of the received video signals based on a set of criteria;
- and
- communicate the determined layout over the communications network as feedback;
- and
- a display, connected to the receiver, configured to display one or more of the received video signals using the determined layout;
- wherein the feedback comprises instructions for the selective transmission of the video signal layers, if any, in the determined layout.
A system for transmitting a plurality of video signals and one or more associated audio signals, wherein the video signals are scalably coded into layers including a base layer and one or more enhancement layers, comprising:
- one or more servers configured to:
- receive instructions for the selective transmission of the video signal layers corresponding to a determined layout;
- and
- selectively transmit only the data of the video signal layers that are necessary for displaying the video signals in the determined layout.
Dependencies are inferred from the claim text.