摘要
给出描述光波通过傍轴光学系统衍射的柯林斯公式及其逆运算表达式。根据在数字全息研究中可以将物平面及CCD平面视为ABCD系统的输入平面及输出平面,本文提出通过柯林斯公式的逆运算进行离焦图像复原的一种计算方法,并且,基于相移法和计算机编程技术,给出离焦图像复原的计算机模拟实例,证明了算法的可行性。
Collins formula,which describes the diffraction of light wave passed through a near-axis optical system,and its inverse calculation expression are presented in this paper.The object plane and charge coupled device(CCD)sensor plane which is used to record image in the study of digital holography,are reckoned the input and output planes of an ABCD system.A kind of calculation method is put forward to reconstruct a defocus image based on inverse Collins formula,the phase-shifting method and computer programmi...
出处
《激光杂志》
CAS
CSCD
北大核心
2008年第4期26-27,共2页
Laser Journal
关键词
数字全息
图像复原
柯林斯公式
离焦
digital holography
imagine restoration
Collins formula
defocus
