A method and multi-point control units for realizing multi-image video conference

A multi-point control unit and video conferencing technology, which is applied in the field of multimedia communication, can solve the problems of not being able to watch the images of the terminal 2-1 and the terminal 2-2 at the same time, and the images of the terminal 2-1 at the same time, so as to avoid congestion Effect

Active Publication Date: 2008-09-10
北京紫光通信科技集团有限公司
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  • Abstract
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Problems solved by technology

like figure 1 As shown, assuming that MCU1 wants to set up a multi-screen video conference, MCU1 can only call the site image of a terminal under any first branch at the same time, for example, terminal 2-1 or terminal 2-2 of MCU2 under the first branch 1 , but cannot watch the site images of Terminal 2-1 and Terminal 2-2 at the same time, and cannot watch the site images of Terminal 2-1 and Terminal 4-1 at the same time

Method used

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  • A method and multi-point control units for realizing multi-image video conference
  • A method and multi-point control units for realizing multi-image video conference
  • A method and multi-point control units for realizing multi-image video conference

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Embodiment Construction

[0057] The present invention provides a method and an MCU for realizing a multi-screen video conference. By improving the way the MCU forwards the terminal screen, without increasing the bandwidth between the cascaded MCUs, the video conference built by the cascaded MCUs is realized. Watch the pictures of multiple terminals under the first branch in a video conference. The present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0058] Herein, the first branch refers to the branch directly connected to the lower-level MCU and the top-level MCU, and the terminal under the first branch refers to the terminal connected to the top-level MCU through the first branch.

[0059] This embodiment takes figure 1 The video conferencing system shown is taken as an example for description. The method for realizing multi-picture video conferencing described in this embodiment, the existing connection mode and bandwidt...

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Abstract

The invention provides a method for realizing multi-image video conferencing and a multi-point control unit. By sending images between cascaded MCUs after the re-encoding of the picture images of a plurality of terminals under an MCU, the method of the invention can realize that the images of a conference hall of a plurality of terminals under a first branch can be watched simultaneously under the circumstance that no bandwidth is added.

Description

technical field [0001] The invention relates to the technical field of multimedia communication, in particular to a method and a multi-point control unit for realizing multi-picture video conferencing. Background technique [0002] In a video conference, a meeting place participating in a video conference is called a venue. Generally speaking, one conference site corresponds to one video terminal (referred to as a terminal for short in this document) and corresponds to one conference site. In the video conference, each terminal collects the picture and sound data of the venue, and transmits them to the multipoint control unit (MCU, Multipoint Control Unit) after encoding and compression; the MCU reintegrates and allocates the above data, and sends Multiple audio and video data streams are integrated into one audio and video stream, which is delivered to each video terminal. [0003] With the widespread use of the Internet, video conferencing systems are becoming more and m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/15
Inventor 丁军
Owner 北京紫光通信科技集团有限公司
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