Video conference bandwidth management method and system

Abstract

The invention discloses a video conference bandwidth management system, and the system is used for obtaining a preset number of continuous raw video frames from a video transmitted by a client; carrying out the compression of the video transmitted by the client according to a preset video compression parameter, and obtaining compressed video frames corresponding to the raw video frames; detecting the current network bandwidth and comparing the current network bandwidth with the data bandwidth of the compressed video; calculating the evaluation value of the image quality of the compressed video when the current network bandwidth is greater than the bandwidth of the compressed video; judging whether the evaluation value of the image quality of the compressed video is within the required range of a preset quality or not; adjusting a video compression parameter when the evaluation value of the image quality of the compressed video is not width in the required range of the preset quality, and carrying out video compression till the evaluation value of the image quality of the compressed video is within the required range of the preset quality. The invention also provides a video conference bandwidth management method. The system and method can achieve the high-definition video image conference, and saves the network bandwidth resource.

Description

technical field [0001] The present invention relates to video conferences, in particular to a video conference bandwidth management method and system. Background technique [0002] When a video conference system or general video conference software is conducting a conference, in order to require the video image to maintain a certain quality, it will control the data bandwidth of the image (ie, the bit rate after video image compression). At present, there are two main mechanisms for managing data bandwidth: one is to set the bit rate of the video stream to a fixed value (such as 3Mbps), the other is to detect the current network bandwidth in real time, and then determine the video based on the current network bandwidth. The bit rate of the stream. For the first mechanism, since the compressed data volume of the video image is determined according to the complexity of the video image at that time, when the bit rate of the video stream is set to a certain value (such as 3Mbps...

AI Technical Summary

Problems solved by technology

For the first mechanism, since the amount of data after video image compression is determined according to the complexity of the video image at that time, when the bit rate of the video stream is set to a certain value (such as 3Mbps), it may cause some problems. A series of problems, such as when the video picture is quite complex, the image transmitted after compression is not clear (actually 4Mbps may be enough), and for example, when the video picture is quite simple, the amount of data after compression is very small, and it may only need 2Mbps to ensure clarity Enough, thus causing a waste of network bandwidth

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