从像上提取非旋转对称系统的传递函数制作解卷空间滤波器

Making Spatial Frequency Filter for Deconvolution by Means of Abstracting the Transfer Function from the Image in an rotaional asymmetrical System

本文提出从高分辨电子显微像中,利用光学、全息和部分相干等方法,提取传递函数,制作相位和振幅滤波器,实现解卷,提高高分辨电子显微像的分辨率.

The transfer function of an electron-optical system with rotational asymmetrical aberrations is anisotropio in spatial frequency domain. By means of optioal, holographic and partial coherent method a new technique is suggested in this paper to abstract the transfer function from the electron micrograph.The phase and amplitude componets of spatial frequency filter are made. The resolution of electron micrograph with asymmetrical aberrations can be improved through the deconvolution.