Research And Realization Of Stereo Video Transmission System Based On Streaming Media Technology

With the rapid development of the Internet and multimedia compression technologies, it is possible to provide streaming media applications over the Internet. Video conference, VOD, IP telephone and remote education has been applied from laboratory to commercial field. However, most of the current video transmission systems restrict themselves to the plane image, but people always prefer stereoscopic video to plane video, because the stereoscopic video includes the depth information of scene, which can provide the third dimension and the reality. Therefore it is an inevitable trend for streaming media to develop in the direction of stereoscopic scene.Combining the techniques of streaming media and stereo vision, a Stereoscopic Video transmission system was designed in this paper. In video transmission and control, first a high compression encoder was used to compress video to make sure that the video data capacity can meet the size requirement of the current bandwidth limitation; second, the Real-time Transport Protocol and transmission process was analyzed; third the AIMD algorithm was took to Avoid congestion. On this basis, two cameras were taken to simulate the eyes of a human, and an algorithm based on timestamp match was proposed to keep the two videos synchronous. Finally, these two video images were displayed in the Helmet-mounted Display which enables observers to get stereo feelings.Based on the research on real-time transmission technology for streaming media such as RTP/RTCP protocol,DirectShow and timestamp, All aspects related to system realization were introduced in detail, such as DirectShow SDK, system development process, video capture processes and key functions, video coding realization as well as filter development including the design of sending filter and receiving filter based on the base class provide by DirectShow SDK, so the video transmission system was completed. Finally, three-dimensional display technology was introduced, as well as the Helmet-mounted Display's principle and method. Consequently, a complete stereo video transmission and display system was realized.