红外实时图像增强的硬件设计与实现  

Design and Implementation of Infrared Image Real-time Enhancement Hardware

作　　者：郭婧[1] 温秀兰[1] 王利平[2] 

机构地区：[1]南京工程学院,江苏南京211167 [2]南京理工大学,江苏南京210094

出　　处：《光电技术应用》2008年第1期56-59,共4页Electro-Optic Technology Application

摘　　要：根据红外图像特点,提出了基于FPGA+SRAM的硬件实时图像处理结构.该硬件设计包含4个主要模块:视频处理模块、FPGA模块、图像存储模块和DA转换及视频合成模块.FPGA是该系统的核心部分,能够实现2D-TDI、图像锐化和非均匀性校正等算法;SRAM阵列是暂存实时图像的,用于算法的实现;FPGA配置FLASH存放FPGA的配置程序;完成硬件调试工作后,尝试实现了部分图像增强算法.According to the infrared image characteristics, the hardware of real-time image processing is designed based on FPGA and SRAM in order to improve the quality of infrared image. The hardware system indudes four function modules： video processing A/D module, FPGA module, image storage module and video processing D/ A module. The images collected by the non- refrigeration infrared imagingsystem can be converted into 8 bit digital signals through the A/T） module. FPGA is the key part which can realize image sharpening and smoothing. The arrays of SRAM are for store the real-time image for a while. At the last, D/A can recover the digital signals to analog ones. And the result can be performed on the video.

关 键 词：红外 图像增强 实时 FPGA 

分 类 号：TN702[电子电信—电路与系统]