Yealink explores Yealink's simplified explanations of common business communication terms regarding the application of three major communication devices, IP Phones, Video Conferencing Equipment and Headsets running on Microsoft, Zoom and other systems, in business work.
In a multi-person meeting, each participant is at a different distance from the camera. Those who are farther away will inevitably be less clear at the remote end. Yealink's Multi Focus function cuts each participant's close-up separately, combines them into a spliced picture and sends it to the remote end, so that the remote participants can see the detailed movements of each participant in the meeting. While upgrading the visual experience of the meeting, it allows participants to have a more equal communication experience.
The multi-screen function (Multi Focus) is equipped with a human body detection algorithm, which confirms the total number of people in the meeting and the position of their heads based on algorithm analysis.
By obtaining basic information in the meeting, determine the number of split screens and quickly determine the current layout. Use the minimum layout change to reduce frequent layout changes caused by personnel movement. The layout number change will be triggered only when the personnel are stable.
The multi-split screen layout adopts the full-screen layout method, and ensures that the human body is always presented in the center area of the picture without deformation by expanding the edge and moving up, and no black border appears to ensure aesthetics.
The multi-split screen function adopts a frame stabilization strategy, follows the principles of character centering and relative stability, avoids the impact of slight shaking, and ensures that the portrait effect does not change due to slight shaking.
The strategy of generating the positioning area based on the head frame makes the person be located in the center of the area.
Through multi-target tracking, head frame stabilization and electronic area frame following, the selected area is kept relatively stable.
When the torso is detected with low confidence, the algorithm eliminates some falsely detected torsos through physical detection; and adjusts the reasonable torso confidence through configuration parameters to achieve the optimal effect of avoiding missed detection.
Each participant in the meeting has a unique ID. Yealink algorithm uses Kalman prediction method to achieve accurate and stable tracking of the head.
During a meeting, when people move in a small range and do not go out of the frame, use translation to ensure smooth visual connection.
When people move over a large area, Yealink algorithm uses mathematical functions to connect the moving trajectories and uses the following methods to ensure smooth visual connection.
If there are more than 6 people in the meeting room, the system will automatically switch to Auto Framing mode.
Avoid installing the device too high. Too large a pitch angle may affect the merging effect of the Multi Focus function.
It is recommended that you deploy the camera at a height of about two meters to obtain a better conference experience. You can adjust it according to the actual situation.
MeetingBar AX Series (Except MeetingBar A30), MeetingBoard series, UVC86, S40 are now available Multi Focus function.
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