Video scene changing detection method and system and experience quality detection method and system

Abstract

The invention provides a dynamic video scene changing method and system and an experience quality detection method and system. The dynamic video scene changing method includes the following steps that a current frame of a dynamic video image is obtained in real time, and a scene changing characteristic parameter ti (n) of the current frame is calculated; according to a dynamic threshold (n) corresponding to the current frame is calculated according to scene changing parameters of a frame or multiple frames before the dynamic video image; whether the scene changing characteristic parameter ti (n) of the current frame is smaller than or equal to the dynamic threshold corresponding to the current frame or not is judged, if yes, the current frame is not the a scene changing frame, and if not, the current frame is the scene changing frame. According to the dynamic video scene changing method and system and the experience quality detection method and system, the transmitted current video frame can be intercepted in time in a transmission process of a network video stream; comparison between the parameter of the current video frame and the parameters, early intercepted, of the frame or the frames can be performed in real time so as to judge changing of a scene. The dynamic video scene changing method and system and the experience quality detection method and system can be widely applied to the field of video experiencing quality assessment and the field of detection of all the other images.

Description

technical field [0001] The invention relates to the field of video image analysis, in particular to a video scene change detection method and system and an experience quality detection method and system. Background technique [0002] Quality of Experience (QoE—quality of experience) is one of the important indicators for evaluating network service quality. It can consider service quality from the user's point of view, so it is more reliable and humanized. And because video service has become the main component of today's network service, the evaluation of video QoE has become a hot issue in current QoE research accordingly. There are many factors that affect video QoE, one of which is the content type of video that is more concerned by people. This is because under the same network damage conditions, the video QoE results of different content types will vary greatly, which makes the QoE In the field, the research of video content type is very important. [0003] The conten...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a dynamic video scene change detection method and system and a quality of experience detection method and system, which can evaluate and analyze network video streams in real time during the transmission process, so as to solve the problem that existing video scene detection methods cannot meet strong real-time requirements. sexual needs

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