Transport of intensity phase imaging from multiple noisy intensities measured in unequally-spaced planes

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	Transport of intensity phase imaging from multiple noisy intensities measured in unequally-spaced planes
	Zheng, Shiling 1; Xue, Bindang 1; Xue, Wenfang2 ; Bai, Xiangzhi 1; Zhou, Fugen 1
刊名	OPTICS EXPRESS
	2012-01-16
卷号	20 期号:2 页码:972-985
英文摘要	The noise problem is generally inevitable for phase retrieval by solving the transport of intensity equation (TIE). The noise effect can be alleviated by using multiple intensities to estimate the axial intensity derivative in the TIE. In this study, a method is proposed for estimating the intensity derivative by using multiple unevenly-spaced noisy measurements. The noise-minimized intensity derivative is approximated by a linear combination of the intensity data, in which the coefficients are obtained by solving a constrained optimization problem. The performance of the method is investigated by both the error analysis and the numerical simulations, and the results show that the method can reduce the noise effect on the retrieved phase. In addition, guidelines for the choice of the number of the intensity planes are given. (C)2012 Optical Society of America
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics
研究领域[WOS]	Optics
关键词[WOS]	RETRIEVAL ; EQUATION ; IMAGES ; RECONSTRUCTION ; MICROSCOPY
收录类别	SCI
语种	英语
WOS记录号	WOS:000300057700031
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/10746]
专题	自动化研究所_综合信息系统研究中心
作者单位	1.Beihang Univ, Sch Astronaut, Beijing 100191, Peoples R China 2.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Shiling,Xue, Bindang,Xue, Wenfang,et al. Transport of intensity phase imaging from multiple noisy intensities measured in unequally-spaced planes[J]. OPTICS EXPRESS,2012,20(2):972-985.
APA	Zheng, Shiling,Xue, Bindang,Xue, Wenfang,Bai, Xiangzhi,&Zhou, Fugen.(2012).Transport of intensity phase imaging from multiple noisy intensities measured in unequally-spaced planes.OPTICS EXPRESS,20(2),972-985.
MLA	Zheng, Shiling,et al."Transport of intensity phase imaging from multiple noisy intensities measured in unequally-spaced planes".OPTICS EXPRESS 20.2(2012):972-985.