The Research And Realization Of Teleconsultation System

With the development of computer and communication technologies, telemedicine has become a modern working mode for medical treatment and medical education, with combination use of modern medicine, computer technology and telecommunications technology, which significantly offsets the impact of overcrowded medical resources, facilities, overcomes the limitation by spaces and time, meanwhile it will effectively cultivate and accumulate medicine resources. Telemedicine includes many medical subspecialties, of which teleconsultation is the most important part. The crucial technology in distant consultant system, research on how to transfer real-time audio-video through Internet will lead the orientation in the future network and multimedia development.Base of the background mentioned above, this essay focuses on the crucial technology in the audio and video transferring. First of all, it introduces four alternative mode for data compress arithmetic—H.263:The mode of nonrestrictive sportive vector,the arithmetic coding mode base of syntax,the mode of supernal forecast and the mode of PB frame. On the base of analyze, it optimizes the functions of color interspace converting, arithmetic of Discrete Consine Transform and arithmetic of Motion Compensation.Secondly, this essay will tell you in detail the real-time network transport protocols RTP/RTCP and it's data package format. With the research on the present RTP/RTCP control mechanism, it brings forward the methods of Adaptive transporting.Finally,this essay explains how to implement teleconsultation system from three steps: booking, patient inquiry and teleconsultation. The client server records patient information and make a reservation for patient; the centre arranges the consultation time after receiving client's information through data server and client can inquiry the process; during the consultation,it hightens the quality of video frequency by using Adaptive transporting...