基于VxWorks平台的MPEG4视频采集压缩系统设计与实现  

Design and realization of MPEG4 video capture and compression system based on VxWorks

作　　者：李昌红 刘玮[1] 闫保中[1] 肖忠炳 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《应用科技》2006年第11期4-6,共3页Applied Science and Technology

摘　　要：在列车监控装置中视频信息直观明了地再现列车内情景.VxW orks实时操作系统下视频采集压缩系统涉及到PC I驱动程序的开发、视频采集卡的编程、MPEG4压缩算法的应用、文件管理等.该系统用TMS320DM642实现对视频信号的压缩算法,通过PC I总线送至本地硬盘存储,形成文件,通过地面回放软件进行回放.Scenes in a train can be redisplayed intuitively and legibly by video information in the monitor equipments, which involves the development of PCI driver, programming of video capture card, application of MPEG4 compression algorithm and file management in the video capture compression system based on VxWorks real time system. Compression of video signals is realized by TMS320DM642. Data is transmitted to the hard disk through PCI bus line and formed into files on local hard disk. Video information can be redisplayed with ground redisplay software.

关 键 词：VXWORKS MPECA 视频压缩 

分 类 号：TN957.52[电子电信—信号与信息处理]