光学滤波实验的Matlab仿真  

Matlab simulation of optical filtering experiment

作　　者：高喜梅 GAO Ximei(School of Sciences,Shanghai Institute of Technology,Shanghai 201418,China)

机构地区：[1]上海应用技术大学理学院,上海201418

出　　处：《应用技术学报》2025年第1期62-65,共4页Journal of Technology

基　　金：上海应用技术大学课程建设项目(10110M240033-A22)资助。

摘　　要：光学滤波实验是物理光学课程重要的实验之一,实验通过傅里叶透镜对物体的空间分布函数进行傅里叶变换,获得物体的频谱,再通过一系列光学器件对频谱进行滤波操作。利用相机获得实验中物体的数字图像,通过Matlab软件编程实现该图像的傅里叶变换,获得图像频谱,采用理想高通(低通)滤波器对频谱进行滤波处理,获得滤波后的图像,并将仿真结果与实验结果进行对比。此实验仿真可以使学生深入理解数字图像处理技术中的傅里叶变换和滤波操作的相关内容,使抽象的理论更加形象化、直观化。The optical filtering experiment is one of the important experiments in the physical optics course.In this experiment,a Fourier lens is used to perform the Fourier transform on the spatial distribution function of an object to obtain its spectrum,which is then filtered through a series of optical elements.A digital image of the object in the experiment is captured using a camera,and the Fourier transform of this image is achieved through Matlab software programming,yielding the image spectrum.An ideal high-pass(low-pass)filter is then applied to the spectrum for filtering,resulting in a filtered image.The simulation results are compared with the experimental outcomes.This experimental simulation allows students to deeply understand the concepts related to Fourier transform and filtering operations in digital image processing technology,making the abstract theories more tangible and intuitive.

关 键 词：光学滤波 MATLAB软件 数字图像处理 傅里叶变换 

分 类 号：O436.1[机械工程—光学工程]