基于NIOS Ⅱ的红外图像在线采集显示系统设计

摘要

设计了一种基于Altera的NIOS Ⅱ嵌入武处理器的红外图像在线采集及显示系统.此系统能实时接收到的红外图像显示在LCD触摸屏上,并通过LCD触摸屏选择图像增强的方法,如增益电平法、自适应线性拉伸法、平台直方图均衡法等红外图像显示常用的预处理方法.实验表明红外图像增强算法的处理时间小于25 ms满足实时显示的要求.并且该系统工作性能稳定,处理效果良好,体积小,便于携带,完全能够满足野外操作等场合.%A new real-time image display system is designed for IR imaging based on Altera' s NIOS II. This system can receive IR image from IR focal-plane arrays and display it on LCD in real-time way. While, this system can select some image enhancement methods to make the IR images be good look. Now these image enhancement methods are gain-level method, adaptive linearscale method and plateau equalization method. Experimental results indicate that this system can be goodly used in such situation as field, out-door. Further, it has small size, portable , real-time display etc. Merits.