A multi-microphone-based camera positioning method for video conferencing

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...

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

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