Design And Implementation Of Experience Quality Evaluation System Based On Interactive Media Application

In recent years,with the rapid development of the Internet,various of applications emerge in an endless stream.The favorable user experience has always been the goal pursued by application providers.Therefore,a lot of research on quality of experience(QoE)has emerged recently.Since interactive media applications face more difficulties in QoE research than traditional on-demand applications,the research on the application of QoE still stays in the scenario of on-demand.Firstly,compared with traditional on-demand applications,interactive media applications are more sensitive to application layer delay,and it is very difficult to measure application layer delay under closed source conditions.In addition,interactive media applications cannot produce finished videos under different network conditions as experimental samples like traditional on-demand applications,which makes the whole QoE research very complicated.Firstly,this thesis introduces the related research background and technology,and describes the related technologies of streaming media QoE and video quality evaluation.Then,from the perspective of software engineering,the requirements analysis,overall design and detailed design of the system are described.Finally,in view of the difficulties encountered in the experience quality evaluation of interactive media applications,this thesis puts forward an experience quality evaluation scheme for the third-party interactive media applications.The scheme uses the unique identification QR code to obtain the window positioning and generation time,and realizes the general delay calculation combined with OpenCV library;The multi role management and node communication are used to manage the evaluation process.Based on the windivert framework,the packet rate and delay are controlled to realize the weak network control;It solves the problem that video quality related parameters cannot be calculated for damaged video due to difficult alignment of video frames,and provides QoE modeling function.In this thesis,the author designs and implements an experience quality evaluation system based on interactive media applications.The system provides solutions for application layer delay measurement,video data analysis and QoE modeling of interactive media applications.The research of this topic is of great help to the research on the experience quality of interactive media applications,and is of great significance to the upgrading and optimization of the experience quality of applications.