高速图像采集存储的研究与开发  

Research and Development on High-Speed Digital Image Storage

作　　者：孙锐[1] 郎非[1] 

机构地区：[1]中国科学院沈阳自动化研究所,辽宁沈阳110016

出　　处：《小型微型计算机系统》2004年第9期1656-1659,共4页Journal of Chinese Computer Systems

摘　　要：在对快速运动目标进行跟踪、测量的过程中 ,为了提高测量精度 ,采用高帧频图像记录技术是目前一种新的技术途径 .针对高速电视系统中数字图像实时快速存储的需要 ,提出一种基于 PCI总线和 SCSI磁盘阵列的视频图像实时采集存储方案 ;针对军工靶场高速电视所拍摄目标的特点 ,提出了一种无损压缩方案 ;针对系统对实时性要求很高 ,而Windows2 0 0 0为弱实时操作系统这一特点 ,提出了几种减少 Windows非实时性的方案 .最后给出了整个系统的软件体系结构和设计思路 。As a new technology, high speed digital image recorder is adopted to real time analyzing and processing of moving targets, which can greatly improve accuracy of index measurement. Real time image grabbing and image storage which based on PCI bus and SCSI disk array technique are proposed against demand on high speed digital image storage; a lossless compression scheme is also proposed against high speed moving targets of military shooting range; contraposed the requirement of digital image storage in real time and windows operation system's non real time characteristic, several methods are proposed to reduce non real time characteristic of operation system. Finally this paper gives a frame of whole software and the software performance's evaluation.

关 键 词：图像记录 实时性 PCI SCSI 无损压缩 多线程 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]