摘要
毫米波是指波长在10-1mm,频率在30-300GHz之间的电磁波,而毫米波近感技术更是近些年来研究的最为活跃的领域之一。毫米波近程辐射计是一种用来接收微弱信号的高灵敏度接收机,但由于周围环境等的影响,形成的毫米波图像总会受较为严重的场景噪声和系统噪声影响,从而导致图像质量不高,图像中目标物体边缘细节存在不同程度的模糊等问题。针对生成图像存在的这个问题,本文首先利用毫米波干涉综合孔径辐射计进行了多次成像实验,然后研究了改进的线性反锐化掩膜图像增强算法。实验表明本文改进的算法增强了图像的边缘细节,便于后续的图像操作处理。
Millimeter wave refers to electromagnetic waves with wavelengths between 10-1mm and frequencies between 30-300GHz,and millimeter wave proximity technology has been one of the most active areas of research in recent years.Millimeter wave short-range Radiometer is a highly sensitive receiver used to receive weak signals.However,due to the influence of the surrounding environment,the resulting millimeter wave image is always affected by more serious scene noise and system noise,resulting in low image quality,and the edge details of the object in the image are blurred to varying degrees.In order to solve the problem of image generation,this paper first conducts several imaging experiments using the millimeter wave interferometric synthetic aperture Radiometer,and then studies the improved linear unsharp mask image enhancement algorithm.The experiment shows that the improved algorithm in this article enhances the edge details of the image,making it convenient for subsequent image processing.
作者
陈秀琴
李跃华
孔令雄
CHEN Xiu-qin;LI Yue-hua;KONG Ling-xiong(College of Electronic Engineering and Optical Technology,Nanjing University of Science&Technology,Nanjing 210094)
出处
《微波学报》
CSCD
北大核心
2023年第S01期324-327,共4页
Journal of Microwaves
关键词
毫米波辐射计
综合孔径成像
反锐化掩膜
图像增强
millimeter wave Radiometer
synthetic aperture imaging
unsharp mask
image enhancement
作者简介
陈秀琴,女,1999年生,硕士生。主要研究方向:被动毫米波成像,图像处理,信号与信息处理。E-mail:2274345736@qq.com
