Picture control method, device and system for multi-picture video conferences

Abstract

An embodiment of the invention discloses a picture control method, device and system for multi-picture video conferences. The method comprises receiving video frequency data of conference halls; acquiring phonetic feature values of a corresponding conference hall in a first specified time range in real time according to video frequency data of every conference hall of the conference halls, and the phonetic feature values are used for representing the activation state of the conference halls; selecting a specified conference hall from the plurality of conference halls according to the activation state of every conference hall; and utilizing pictures of the specified conference hall as sprites to be filled into multiple pictures so as to update the multiple pictures in real time. Whether one conference hall is in activated state is determined by counting phonetic feature values in time ranges, the activation state is the basis of participating multi-picture composition, dynamic adjustment of sprite contents in the multiple pictures can be achieved, the effect of conferences can be remarkably improved, and conference experience of conventioneers can be greatly improved. Besides, number and position of sprites in the multiple pictures can be adjusted dynamically, so that the effect of conferences can be remarkably improved.

Description

technical field [0001] The invention relates to the field of video conferencing, in particular to a method, device and system for controlling pictures in a multi-picture video conferencing. Background technique [0002] In the video conferencing system, due to the large number of participants and their distribution in various places, in order to enable participants to communicate face-to-face with participants in other venues and to see participants in other venues at the same time, multiple conferences are generally used. With the technology of the screen, the participants can communicate with the participants in multiple venues at the same time by watching multiple screens. [0003] The current multi-screen display scheme of the video conferencing system is: pre-set the multi-screen mode, such as 4 screens, 9 screens, etc., and then fill several fixed sites into the sub-screens of the multi-screen, and each site can see it during the conference. All multi-screens are in t...

AI Technical Summary

Problems solved by technology

In the process of implementing the present invention, the inventor found that: when using this solution in the prior art, the conference site in the sub-picture may not speak all the time, while other conference sites that speak enthusiastically are not displayed in the multi-screen, so that the video conference cannot be reached. expected effect; in addition, the multi-screen display form in the prior art is fixed and cannot be adjusted according to the site conditions

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