医学影像视频流网络传输  

Medical Video Stream Transmission Via Internet

作　　者：张帆[1] 李波[2] 

机构地区：[1]天津大学电子信息工程学院,天津300072 [2]河南大学计算机与信息工程学院,河南开封475001

出　　处：《微电子学与计算机》2008年第8期25-28,共4页Microelectronics & Computer

基　　金：国家"八六三"计划项目(2006AA01Z407);中国博士后科学基金项目(20070420707)

摘　　要：提出一种将数字减影血管造影(DSA)的影像视频流进行网络直播的方案.该方案采用高性能图像采集卡对DSA视频流进行采集,利用MPEG-4压缩,结合微软的DirectShow框架技术,通过服务器端的发送过滤器(fil-ter)和客户端的接收filter,再利用网络传输层的TCP和UDP协议,实现DSA视频流的网络直播.实验表明,在100M的局域网中,该方案直播的图像清晰度较好,延时时间≤1s,可以很好地满足DSA视频的清晰性和实时性要求.A network living broadcast scheme of MPEG - 4 medical video stream is presented. In this scheme, digital subtraction angiography （DSA） video stream are captured by an advanced image capture board. MPEG- 4 and DirectShow framework technique are used for data＇s compression and transmission. Data of DSA video stream can be transported easily from server sender filter to client receiver filter according to TCP and UDP protocols. Experimental results show that the image is clear in 100M LAN, and the delay is less than one second. High performances of definition and real-time of the DSA video are both achieved in this scheme.

关 键 词：DSA DIRECTSHOW MPEG—4 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]