Monitoring video quality judgment method and playing control device

Abstract

The invention discloses a video monitoring quality judgment method. The method comprises the following steps: step 1, establishing a video quality judgment control framework; step 2, establishing a utility function to represent the user experience quality Q; and step 3, calculating a Q value. The invention further provides a monitoring video playing control device of the video monitoring quality judgment method. The monitoring video playing control device comprises a monitoring video forwarding server and a monitoring video client; the monitoring video forwarding server forwards a video streamtransmitted by the monitoring equipment to the monitoring video client; and the monitoring video client processes the video stream forwarded by the monitoring video forwarding server and displays thevideo stream in front of a client watching the monitoring video. According to the monitoring video quality judgment method provided by the invention, parameters related to user experience, such as the length of the cache region and the playing frame rate, are increased, and the video quality of the user experience can be effectively judged.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for judging the quality of video surveillance and a method for controlling playback. Background technique [0002] With the development of society and the continuous improvement of public security awareness, video surveillance systems, as an important part of the security industry, have been widely used in many places in life. In fact, a large number of video surveillance devices have been installed and deployed on roads, public places, and indoors, and the need for networking follows. In recent years, with the announcement of a batch of video networking standards represented by the national standard GB / T28181, the video networking of various public departments and cross-department and cross-regional development has been rapid. [0003] However, the development also brings new problems. Due to various reasons, the network structure of some surveillance video systems may be ver...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the shortcomings of the existing video monitoring that it is difficult to effectively judge the quality of the monitoring video to improve the user experience when the network is not good, and provides a method that combines the video code rate of the forwarding end of the server to monitor the length of the buffer area i and packet loss of the client. A surveillance video quality detection method with rate l, playback frame rate u, and video playback bit rate r, and a surveillance video playback control device based on the method, realize real-time surveillance video quality detection, and adjust the surveillance video through the surveillance video playback control device State, improve client user experience

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