Video conference camera locating method based on multiple microphones

A technology of video conferencing and positioning method, which is applied in the field of video communication, can solve the problems of inconvenience, manual camera adjustment, etc., and achieve the effect of simple calculation, simple and flexible design, and improved conference effect

Active Publication Date: 2014-12-24
XIAMEN YEALINK NETWORK TECH
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AI Technical Summary

Problems solved by technology

[0002] At present, video conferencing is becoming more and more popular, and it also plays an increasingly important role in communication in business activities such as teleconferencing or distance education. The microphone and camera of the traditional video conferencing system are independent, in order to achieve the effect of face-to-face with the speaker , it is often necessary to manually adjust the position of the camera, causing inconvenience

Method used

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  • Video conference camera locating method based on multiple microphones
  • Video conference camera locating method based on multiple microphones
  • Video conference camera locating method based on multiple microphones

Examples

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Embodiment Construction

[0024] Such as figure 1 with figure 2 As shown, a multi-microphone-based video conference camera positioning method, the multi-microphone includes at least 3 channels, and the relative positions of each channel remain unchanged. The multi-microphone in this embodiment is 4 microphones, consisting of 4 microphones Each microphone is a channel, and the relative position of each channel remains unchanged. For the convenience of calculation, each channel is numbered in a certain order, such as in a counterclockwise direction. O is the center of the microphone, and A is the current speaker. position, B is the position of the camera, C is the TV set, and the 4 channels of the multi-mic are symmetrical about the center O of the microphone, and the method includes the following steps:

[0025] Step 10. When a remote sound is emitted through the TV speaker, an invisible main echo line is formed in the direction of sound playback, such as figure 2 Among them, the main echo line is t...

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PUM

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Abstract

The invention provides a video conference camera locating method based on multiple microphones. The multiple microphones comprise at least three channels with relative positions unchanged. The method comprises the following steps that when remote sounds are made, echo data of all the channels are collected, and the position relation between the main echo channel with the maximum energy value and a main echo line of the main echo channel is determined; reference positions of the microphones are determined by utilizing the position of the main echo channel; when the sounds of the near end are made, sound energy values of all the channels are collected, and the direction of the position of a current presenter is determined; the direction of a camera is determined according to the direction of the position of the current presenter. According to the method, the position of the presenter is judged according to the position information of all the channels of the multiple microphones and current received sound energy, the design is simple and flexible, the calculation is convenient, performance consumption is avoided, the tracking angle of the camera is adjusted automatically, it can be ensured that the current conference presenter stays in the capturing range of the camera, and the conference effect is improved.

Description

technical field [0001] The invention relates to the technical field of video communication, in particular to a multi-microphone-based video conferencing camera positioning method. Background technique [0002] At present, video conferencing is becoming more and more popular, and it also plays an increasingly important role in communication in business activities such as teleconferencing or distance education. The microphone and camera of the traditional video conferencing system are independent, in order to achieve the effect of face-to-face with the speaker , It is often necessary to manually adjust the position of the camera, causing inconvenience. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a multi-microphone-based video conference camera positioning method, which can automatically adjust the direction of the camera tracking the position of the speaker, and ensure that the current speaker can be within the...

Claims

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Application Information

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IPC IPC(8): G05D3/12
Inventor 毕永建
Owner XIAMEN YEALINK NETWORK TECH
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