基于EZ-USB FX2的图像采集系统的设计与实现  

Design and implementation of image capturing system based on EZ-USB FX2

作　　者：刘胜[1,2] 陈华[1] 聂雄[1] 

机构地区：[1]广西大学计算机与电子信息学院,广西南宁530004 [2]广西财经学院计算机与信息管理系,广西南宁530003

出　　处：《电子设计工程》2011年第11期160-162,166,共4页Electronic Design Engineering

基　　金：广西科学研究与技术开发计划项目(桂科攻0992002-23);南宁市科学研究与技术开发计划项目(200801028A);广西大学科学基金资助项目(X071005)

摘　　要：针对光学显微镜序列切片图像采集设计了一种图像采集系统。使用Philips解码芯片SAA7113H将CCD模拟视频信号解码为8位数字信号,利用CY7C68013A的内置FIFO及串行接口引擎将未压缩的图像数据直接通过USB串行总线传输到PC机,在PC机上实现图像的显示和存储。经验证,采集系统可实现最大25帧/秒速率,720×576分辨率图像的可控采集功能,具有成本低,采集图像清晰,响应速度快等优点,稍加修改后即可用于其他要求快速图像或视频采集的场合。This paper describes a possible design of image capturing system for optical microscope sequence slice.With SAA7113H,the Philips decoding chip,CCD analog video signals is decoded to 8bit digital video first,and the uncompressed image data are transferred to PC through the Universal Serial Bus by using the built-in FIFO and serial interface engine of CY7C68013A.Consequently,real-time display and capture of image is realized in PC.It has been proven that this acquisition system can controllably capture images by 25 fps with 720×576 and it has the advantages of low cost,clear acquisition image,fast response,etc.After slightly modified,this system can be used for occasions where fast image or video capture is required.

关 键 词：图像采集 USB2.0 PAL CY7C68013 SAA7113H 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]