Automatic Video Switching in Conference Systems
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Solution Overview
Problem
Current video conference systems rely on manual video switching, which can interrupt the conference and cause errors, affecting efficiency.
Innovation Solution
A method and system for automatically switching video image signals during a video conference by determining the current speaker using video image signals and voice information, and sending the corresponding video image signals to other sites.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual video switching is implemented using switching buttons or conference administrators, then video switching can be performed, but the conference progress is interrupted and switching errors occur, reducing efficiency
Solution Approach 1:
The system automatically detects the current speaker through voice activity detection and automatically switches video feeds without requiring manual intervention. The conference terminal itself performs the switching task, eliminating the need for external operators and preventing interruptions to the conference flow.
Solution Approach 2:
The manual mechanical switching operation (pressing buttons or administrator intervention) is replaced by an automated electronic system that uses voice detection algorithms and automated control logic to determine when and what video to switch, eliminating human error and interruption.
2Reliability
If all participants are displayed in real size on the screen, then communication effectiveness is improved, but the screen cannot display all participants simultaneously when there are more participants than screen capacity
Solution Approach 1:
Instead of uniformly displaying all participants, the system applies different display qualities to different participants based on their current speaker status. The current speaker receives prominent full-screen or enlarged display, while other participants are shown in smaller thumbnails or omitted, optimizing the use of limited screen real estate while maintaining communication effectiveness.
Solution Approach 2:
The display configuration dynamically changes based on the current speaker. When a participant speaks, the system automatically adjusts the video layout to highlight that participant, switching between different display modes (full-screen, picture-in-picture, thumbnail grid) according to the active speaker, thereby adapting the limited screen space to the current communication needs.
Data Source
AI summary
The embodiments of the present invention disclose a method, device, and system for video communication, and relate to the field of video conference technologies, so as to implement automatic switching of video images during a video conference. The method includes: obtaining video image signals and voice information of a first site; determining video image signals including a video object according to the video image signals and voice information of the first site; and sending the video image signals including the video object to a second site. The method, device, and system provided in the embodiments of the present invention implement automatic switching of video image signals during the video conference, thus avoiding switching errors caused by human factors and improving the efficiency of the conference.