基于FPGA和ARM的红外图像实时显示和采集方法  

Method of infrared image real-time display and collection based on FPGA and ARM

作　　者：毛伟[1] 隋修宝[1] 陈钱[1] 顾国华[1] 

机构地区：[1]南京理工大学电光学院404系,江苏南京210094

出　　处：《激光与红外》2013年第11期1222-1228,共7页Laser & Infrared

基　　金：江苏省自然科学基金(No.BK2011698);教育部博士点新教师基金(No.20113219120017);博士后特别资助基金(No.2012T50478);江苏省博士后科学基金(No.1101081C);南京理工大学自主科研专项计划资助项目(No.2011YBXM74)共同资助

摘　　要：针对传统的ARM系统在红外图像显示和处理上存在处理速度慢,效率低,难以做到完全实时的问题,本文设计了一种新的基于FPGA和ARM系统的红外图像实时显示和采集方法,该方法主要是通过使用Qt多线程编程技术和FrameBuffer接口相结合的方式对FPGA从网络发送到ARM的图像数据进行接收处理并显示在液晶屏上,同时使用按键对其进行控制。实验结果显示这种方法简单,工作效率高,能够以25帧/秒的速度实现大小为640×480的红外图像的实时显示和采集保存,极大地提升了ARM在图像处理上的效率,同时整个显示采集系统体积小,使用方便、灵活,因而具有一定的应用前景。As traditional ARM system is slow,inefficient and difficult to achieve complete real-time on infrared image display and processing, a new method to display and collection IR image based on FPGA and ARM system in real-time is designed. This method receives, processes and display the IR image which is transferred from FPGA to ARM system by fast network on LCD screen by using Qt Multi-thread programming and FrameBuffer interface and control it by keys. The experiment results show that this method is easy and has high efficiency,it can display and collect 640 × 480 IR image in real-time on 25FPS completely,this greatly improved the efficiency of IR image processing on ARM, at the same time this system has small shape, and it can be used conveniently and flexibly, thus it has a certain appli-cation prospects.

关 键 词：FPGA ARM 红外图像 多线程 FRAMEBUFFER 实时显示 

分 类 号：TN216[电子电信—物理电子学]