光学空间滤波过程的计算机仿真

提出了一种利用MATLAB软件并通过计算机仿真光学空间滤波实验过程的新方法.其特点是:既可以随意改变所设计滤波器的参量,又可以对输入图象进行振幅、相位或复合滤波,并且可实现傅里叶变换频谱中相位信息的提取、存储和利用,因而能够完成一般光学实验中往往难以实现的某些操作.并分别给出了网格滤波、低通、高通及相位滤波等仿真实验结果.这种仿真实验给光学滤波器的设计和图象处理带来很大方便,同时也为相关器件的设计提供了一条新的途径.

COMPUTER SIMULATION OF OPTICAL SPATIAL FILTERING

A novel method based on MATLAB to simulate the optical image filtering process with computer is presented.The advantages of the simulation system are as following: 1) The parameters of the disigned filters can be modified arbitrarily.2) The input images are processed on amplitude,phase of both of them with these filters.3) The phase information in Fourier frequency spectrum can be extracted and utilized.The simulated results of some objects (include grid) that are filtered by low-pass filter,high-pass filter or phase filter are given.The results show that the simulating experiments are helpuful to the filter’s design and the image processing.At the same time,it offers a new way to design the related CAI.