| Mankind has been pursuing illustrated, vivid and natural visual experience for along time. The traditional planar video technology cannot simulate the real world ashuman see, so it cannot meet the watching needs of people. Compared withconventional planar video technology, stereo video technology can bring audiencerealistic telepresence by offering depth information of the scene. Stereoscopic videotechnology is expected to become the direction and tendency for the next generationof information technology. Thus, the key technology research of stereoscopic videotransmission system has very important value.This article relies on the high-speed presentation system for communication of60GHz millimeter wave. The research of key technology is conducted on the basis ofcapturing, transiting, receiving and displaying of multi-view stereoscopic video.Stereoscopic video are generally composed of multiple videos, the amount ofdata is far greater than normal planar videos. We study the transmission efficiency,reliability, rate control and the method for receiving of this stereoscopic videotransmission system. In order to ensure the efficiency of video transmission, in thispaper, the GPU CUDA parallel computing technology is employed to convert themulti-channel video format from NV12to RGB in the stereoscopic videotransmission system. Experimental results show that through this method we canimprove the video transmission rate of the stereoscopic transmission system from lessthan100M/s to more than200M/s. Furthermore, for the purpose of ensuring thevideo transmission reliability, we have developed an appropriately packaging solutionfor the UDP of our stereoscopic video data. And in this method we use the RS codesto protect our customized important header information of the UDP packet. In order toachieve the video transmission rate control, the multimedia timer is utilized toprecisely control the decoding frame rate of the local video source, thus we cancontrol the transmission of our stereoscopic video system. Since the special nature ofvideo packet in our stereoscopic system, WinPcap network programming technologyis adopted to receive video data packets at the server side. |
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