基于FPGA的红外图像中值滤波算法研究与实现  

Research and Implementation of Infrared Image Median Filtering Algorithm Based on FPGA

作　　者：孙少伟 杨粤涛 杨炳伟 钟海林 SUN Shaowei;YANG Yuetao;YANG Bingwei;ZHONG Hailin(AVIC Suzhou Changfeng Avionics Co.,Ltd.,Suzhou 215001,China)

机构地区：[1]苏州长风航空电子有限公司,江苏苏州215001

出　　处：《电视技术》2020年第9期50-53,57,共5页Video Engineering

摘　　要：中值滤波技术在数字图像处理领域应用比较广泛,能够有效处理图像显示的噪声。红外图像由于在成像过程中受到感光、温度以及结构等客观因素的影响,成像质量往往较差。因此,介绍一种基于FPGA的红外图像中值滤波处理技术,利用FPGA在数据并行处理和流水线处理上的优势,选择适当大小窗口的掩模对红外画面进行中值滤波,以消除红外图像中的噪声像元点。实验结果表明,该方案能有效消除红外图像显示中的噪声,改善图像画面显示质量。Median filtering technology is widely used in the field of digital image processing,which can effectively deal with the noise of image display.Due to the influence of objective factors such as sensitivity,temperature,structure and so on,the image quality of infrared image is often poor.This paper introduces a kind of infrared image median filter processing technology based on FPGA.Taking advantage of FPGA’s advantages in data parallel processing and pipeline processing,the mask with appropriate size window is selected for median filtering of infrared image,which is used to eliminate noise pixels in infrared image.The experimental results show that the proposed scheme can effectively eliminate the noise in the infrared image and improve the image display quality.

关 键 词：中值滤波 FPGA 红外图像 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]