Method and system for providing continuous presence video in a cascading conference
First Claim
1. A method of composing a cascading continuous presence layout for a video conference between two or more endpoints associated with two or more MCUs, the method comprising:
- receiving at least one selection parameter for each endpoint of the one or more endpoints and selecting which of the endpoints will be displayed in the cascading continuous presence layout based on the received selection parameters;
defining for each MCU which of the endpoints associated with that MCU are selected endpoints;
receiving from at least one of the other MCUs a video stream that includes a video image from each of the selected endpoints associated with that other MCU; and
composing a cascading continuous presence layout from the received video streams.
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Abstract
Disclosed herein are methods and systems for providing continuous presence video layout in a cascading video conference, i.e., a video conference that is conducted over more than one MCU. A cascading continuous presence composition controller (CCCC) selects which endpoints from among all of the endpoints participating in the conference should be displayed in the layout, regardless of which MCU the endpoints are associated with. The CCCC can be resident on one of the MCUs, resident on a cascading conference server, or can be distributed among all of the MCUs involved in a cascading conference.
70 Citations
20 Claims
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1. A method of composing a cascading continuous presence layout for a video conference between two or more endpoints associated with two or more MCUs, the method comprising:
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receiving at least one selection parameter for each endpoint of the one or more endpoints and selecting which of the endpoints will be displayed in the cascading continuous presence layout based on the received selection parameters;
defining for each MCU which of the endpoints associated with that MCU are selected endpoints;
receiving from at least one of the other MCUs a video stream that includes a video image from each of the selected endpoints associated with that other MCU; and
composing a cascading continuous presence layout from the received video streams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for video conferencing, comprising:
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a plurality of groups of endpoints, each group comprising one or more endpoints;
a plurality of MCUs, each MCU associated with one of the groups of endpoints;
a cascading continuous presence composition controller (CCCC) adapted to select endpoints to be presented in a continuous presence layout comprising video streams from the selected endpoints and wherein the selection is done independently of the group of endpoints to which the selected endpoints belong. - View Dependent Claims (13, 14, 15, 16, 20)
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17. A cascading continuous presence composition controller (CCCC) adapted to manage the composition of a cascading continuous presence layout in a video conference involving two or more MCUs, each MCU associated with a group of endpoints, wherein the CCCC:
- is configured to;
communicate with each the MCUs, select one or more endpoints to be presented in a cascading continuous presence layout comprising video streams from the selected endpoints, instruct at least one MCU to compose at least one composed associated continuous presence video image and transmit the at least one composed associated continuous presence video image to at least one other MCU; and
instruct at least one MCU to compose at least one cascading continuous presence layout comprising video images received from selected endpoints in the group of endpoints associated with that MCU and video images embedded in the at least one composed associated continuous presence video received from the other MCU. - View Dependent Claims (18, 19)
- is configured to;
Specification