基于FPGA的图像采集与存储系统设计  

Design of Image Acquisition and Storage System Based on FPGA

作　　者：刘明闯 孙海江[1] 王嘉成[1] 江山[1] 王佳松 Liu Mingchuang;Sun Haijiang;Wang Jiacheng;Jiang Shan;Wang Jiasong(Changchun Institute of Optics,Fine Mechanics and Physics,CAS,Changchun 130033,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《机电工程技术》2023年第5期193-199,共7页Mechanical & Electrical Engineering Technology

摘　　要：高分辨率传感器应用越来越广,但超高清分辨率图像会带来高带宽、高存储、高码流等一系列问题。针对这些问题,提出一种基于FPGA的图像采集与存储系统的设计方案。在硬件设计上,以FPGA、NVMe SSD固态硬盘、DDR、CMOS为核心器件,通过FPGA芯片实现对CMOS、DDR、NVMe SSD固态硬盘的驱动控制功能,以实现图像数据的采集、高速缓存、高速存储等功能;通过千兆网将图像数据传输到PC端进行解码、显示等操作。利用FPGA实现对图像数据流的控制,可最大限度发挥FPGA芯片的性能,保证高分辨率图像传输的实时性、稳定性、高效性。从硬件设计、软件设计、测试试验等方面,对图像采集与存储系统进行了说明并进行了试验。结果表明:利用该系统最终采集到了分辨率为9120像素×7000像素的图像,该系统可实现的存储速度为608 MB/s,实现了9 K以上分辨率的图像采集和存储。High resolution sensors are more and more widely used,but ultra HD resolution images will bring a series of problems such as high bandwidth,high storage and high bit stream.To solve these problems,a design scheme of image acquisition and storage system based on FPGA was proposed.In terms of hardware design,with FPGA,NVMe SSD,DDR and CMOS as the core devices,the drive control functions of CMOS,DDR and NVMe SSD were realized through FPGA chip,and then the image data acquisition,cache,high-speed storage and other functions were realized;the image data were transmitted to the PC end through the Gigabit network for decoding,display and other operations.The control of image data stream by using FPGA can maximize the performance of FPGA chip and ensure the real-time,stability and high efficiency of high-resolution image transmission.The image acquisition and storage system was described and tested from the aspects of hardware design,software design,test and experiment.The results show that by using the system,the image with a resolution of 9120 pixel×7000 pixel can be acquired,the storage speed can be 608 MB/s,and the image acquisition and storage of more than 9 K resolution is realized.

关 键 词：超高清成像 FPGA 图像采集 图像存储 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]