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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Simultaneous digital correction of amplitude and phase errors of retrieved wave-front in phase-shifting interferometry with arbitrary phase shift errors
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Simultaneous digital correction of amplitude and phase errors of retrieved wave-front in phase-shifting interferometry with arbitrary phase shift errors

机译：具有任意相移误差的相移干涉术中同时获得的波前幅度和相位误差的数字校正

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摘要

Both the amplitude error and phase error retrieved in the recording plane in phase-shifting interferometry (PSI) have effects on the reconstructed wave-front in original object plane placed a distance away. We have proposed a simple and effective algorithm, which can simultaneously correct both kinds of wave errors caused by arbitrary and unequal phase shift errors in PSI for an off-lying object and then greatly improve the reconstructed object wave-front by digital image processing based on the statistic nature of diffraction field. The principles are explained, and a series of computer simulations are made to verify its feasibility.
机译：在相移干涉术（PSI）中在记录平面中检索到的幅度误差和相位误差都会对相距一定距离的原始物平面中的重构波前产生影响。我们提出了一种简单有效的算法，该算法可以同时校正由近邻物体在PSI中任意和不相等的相移误差引起的两种波误差，然后通过基于图像的数字图像处理极大地改善重建的物体波前。衍射场的统计性质。解释了原理，并进行了一系列计算机仿真以验证其可行性。

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