Overlapped Fourier coding for optical aberration removal

被引：34

作者：

Horstmeyer, Roarke ^{[1
]}

Ou, Xiaoze ^{[1
]}

Chung, Jaebum ^{[1
]}

Zheng, Guoan ^{[2
]}

Yang, Changhuei ^{[1
]}

机构：

[1] CALTECH, Pasadena, CA 91125 USA

[2] Univ Connecticut, Storrs, CT 06269 USA

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 20期

基金：

美国国家卫生研究院;

关键词：

DIFFRACTION PHASE MICROSCOPY; WIDE-FIELD; STRUCTURED ILLUMINATION; HIGH-RESOLUTION; RETRIEVAL;

D O I：

10.1364/OE.22.024062

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an imaging procedure that simultaneously optimizes a camera's resolution and retrieves a sample's phase over a sequence of snapshots. The technique, termed overlapped Fourier coding (OFC), first digitally pans a small aperture across a camera's pupil plane with a spatial light modulator. At each aperture location, a unique image is acquired. The OFC algorithm then fuses these low-resolution images into a full-resolution estimate of the complex optical field incident upon the detector. Simultaneously, the algorithm utilizes redundancies within the acquired dataset to computationally estimate and remove unknown optical aberrations and system misalignments via simulated annealing. The result is an imaging system that can computationally overcome its optical imperfections to offer enhanced resolution, at the expense of taking multiple snapshots over time. (C) 2014 Optical Society of America

引用

页码：24062 / 24080

页数：19

共 43 条

[11] Movable aperture lensless transmission microscopy: A novel phase retrieval algorithm [J].