高速CMOS图像存储与实时显示系统设计  

Design of high-speed CMOS image storage and real-time display system

作　　者：马林[1,2] 李锦明[1,2] 张虎威[1,2] 侯天喜 降帅 

机构地区：[1]中北大学电子测试国家重点实验室,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《电子技术应用》2017年第6期7-10,14,共5页Application of Electronic Technique

摘　　要：针对遥测系统图像单元存在数据量大、速度快、无法直接存储显示等问题,设计了一种高速图像存储与实时显示系统。系统以Spartan 6系列现场可编程门阵列(FPGA)作为核心处理器,使用Full模式Camera Link接口采集CMOS相机输出的图像数据,利用DDR3乒乓缓存技术将图像数据写入由SATA控制器组成的磁盘阵列中,并且通过千兆以太网接口将处理后的数据上传至计算机;图像数据采用抽帧以及降低分辨率的形式,将其转换为1 024×768像素的VGA分辨率格式,最后通过VGA接口对图像进行实时显示。实验结果表明,该系统能够对分辨率为2 048×2 048像素、帧频为150 f/s的高速图像数据进行长时间存储与实时显示。A high-speed image storage and real-time display system is designed for telemetry system of aiming at the problems of large data volume, high-speed and inability to store display directly. The system takes the Spartan 6 series FPGA as the core pro- cessor, and uses the full mode Camera Link interface to gather the image data of CMOS camera output. The system of possessing high-speed image storage and real-time display uses technology of DDR3 Ping-Pong cache to write image data into a disk array consisting of SATA controllers as well as through Gigabit Ethernet interface upload to computer after analysis and processing. Image data is converted to the VGA resolution format of the 1 024×768 pixels in the form of pumping frames and reducing resolution. Finally the system conduct the image real-time display through the VGA interface. What the experimental results show that the sys- tem can store and display the high-speed image data with 2 048×2 048 pixels and frame frequency with 150 f/s resolution.

关 键 词：CMOS相机 现场可编程门阵列 磁盘阵列 千兆以太网 

分 类 号：TN919.5[电子电信—通信与信息系统]