Evaluation of the Perceived Effects of a Video Conferencing for Windows Mobile

Abstract

The aim of this thesis is to test the video quality in videoconferencing from the end user’s perception based on the Windows Mobile EMP platform. Video conferencing is promising service in practice and the quality of the service is not well described. The video quality may be affected by many factors and the influence brought by the EMP platform as well as the artificial control is going to be tested and evaluated. The Windows mobile architecture in general and the Windows mobile videoconferencing framework in special are illustrated in the thesis. This gives information about how the videoconferencing work in Windows Mobile system and how the EMP platform provides a framework for videoconferencing integration. On the other hand, the effects of a bad timing, to high resource consumption, data loss, and other effects that may bring the bad influence for video quality from the end user perception are discussed in the thesis. This paper proposes the test cases about how to test the video quality automatically and chooses one simple and feasible one as the final solution. The measurement of video quality is decided from the existing methods and some improvements have made to give a comprehensive measuring of the video quality besides the traditional signal-to-noise respect. Also, it explains what the input is, how to create the test application and what the output of the system is. Hopefully, the implementation of the system can be carried out in later research and the work we done will give help to video conferencing service.