Apodized coherent transfer function constraint for partially coherent Fourier ptychographic microscopy

doi:10.1364/oe.27.014099

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Apodized coherent transfer function constraint for partially coherent Fourier ptychographic microscopy
	X.Chen; Y.Q.Zhu; M.L.Su; D.Y.Li; Q.Q.Mu; L.Xuan
刊名	Optics Express
	2019
卷号	27 期号:10 页码:14099-14111
关键词	phase retrieval,wide-field,illumination,strategy,image,Optics
ISSN号	1094-4087
DOI	10.1364/oe.27.014099
英文摘要	Fourier ptychographic microscopy (FPM) is a recently developed computational microscopy approach that produces both wide field-of-view (FOV) and high resolution (HR) intensity and a phase image of the sample. Inspired by the ideas of synthetic aperture and phase retrieval. FPM iteratively stitches multiple low-resolution (LR) images with variable illumination angles in Fourier space to reconstruct an HR complex image. Typically, FPM illuminating the sample with an LED array is approximated as a coherent imaging process. and the coherent transfer function (CTF) is imposed as a support constraint in Fourier space. However, a millimeter-scale LED is inapposite to be treated as a coherent light source. As a result, the quality of reconstructed image is degraded by the inappropriate approximation. In this paper. we analyse the coherence of an FPM system and propose a novel constraint approach termed Apodized CTF (AC) constraint ill Fourier space. Results on both simulated data and actual captured data show that this new constraint is more stable and robust than CTF. This approach can also relax the coherence requirement of illumination. In addition, it is simple, does not require additional computations. and is easy to be embedded in almost all the reconstruction algorithms proposed so far. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/63449]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X.Chen,Y.Q.Zhu,M.L.Su,et al. Apodized coherent transfer function constraint for partially coherent Fourier ptychographic microscopy[J]. Optics Express,2019,27(10):14099-14111.
APA	X.Chen,Y.Q.Zhu,M.L.Su,D.Y.Li,Q.Q.Mu,&L.Xuan.(2019).Apodized coherent transfer function constraint for partially coherent Fourier ptychographic microscopy.Optics Express,27(10),14099-14111.
MLA	X.Chen,et al."Apodized coherent transfer function constraint for partially coherent Fourier ptychographic microscopy".Optics Express 27.10(2019):14099-14111.