红外焦平面图像实时处理的FPGA实现  

FPGA Implementation of Real-Time Processing of Infrared Focal Plane Images

作　　者：厉天扬 陈兴杰[1] LI Tian-yang;CHEN Xing-jie(School of Urban Railway Transportation,Shanghai University ofEngineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学城市轨道交通学院,上海201620

出　　处：《红外》2023年第7期15-20,共6页Infrared

摘　　要：为了消除非制冷红外焦平面阵列上红外成像结果的非均匀性与成像过程中产生的盲元,提高了图像的对比度以及红外图像的实时处理能力。搭建了基于武汉高德红外公司生产的120×90红外焦平面探测器的电子学实验平台。利用现场可编程门阵列(Field-Programmable Gate Array, FPGA)的并行处理和流水化处理的能力,在FPGA上实现了非均匀性校正中的两点校正、基于中值滤波的盲元补偿、直方图均衡化以及伪彩色变换。实验结果表明,在200 MHz的输入时钟条件下,这种红外图像实时处理模块处理一帧图像耗时60.4μs,实时性强。该研究对于非制冷红外焦平面阵列应用优化具有一定的实际意义。In order to eliminate the non-uniformity of infrared images on uncooled infrared focal plane array and the blind elements generated in the imaging process,the image contrast and the real-time processing ability of infrared images are improved.In this paper,an electronic experimental platform based on the 120×90 infrared focal plane detector produced by Wuhan Guide Infrared company is built.Using the parallel processing and pipeline operation capabilities of field-programmable gate array(FPGA),two-point correction in non-uniformity correction,blind element compensation based on median filter,histogram equalization and false color transformation are realized on FPGA.The experimental results show that under the condition of 200 MHz input clock,this infrared image real-time processing module takes 60.4 s to process a frame of image,and has strong real-time performance.The research has practical significance for the application optimization of uncooled infrared focal plane arrays.

关 键 词：现场可编程门阵列 非制冷红外焦平面 红外图像处理 

分 类 号：TN219[电子电信—物理电子学]