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Edge-preserving sectional image reconstruction in optical scanning holography
Zhang X(张鑫); Edmund Lam
2010
发表期刊J. Opt. Soc. Am. A
卷号27期号:7页码:1630
摘要Optical scanning holography (OSH) enables us to capture the three-dimensional information of an object, and a post-processing step known as sectional image reconstruction allows us to view its two-dimensional crosssection. Previous methods often produce reconstructed images that have blurry edges. In this paper, we argue that the hologram’s two-dimensional Fourier transform maps into a semi-spherical surface in the threedimensional frequency domain of the object, a relationship akin to the Fourier diffraction theorem used in diffraction tomography. Thus, the sectional image reconstruction task is an ill-posed inverse problem, and here we make use of the total variation regularization with a nonnegative constraint and solve it with a gradient projection algorithm. Both simulated and experimental holograms are used to verify that edge-preserving reconstruction is achieved, and the axial distance between sections is reduced compared with previous regularization methods.
关键词Osh
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/12003
专题09年以前成果
通讯作者Edmund Lam
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GB/T 7714
Zhang X,Edmund Lam. Edge-preserving sectional image reconstruction in optical scanning holography[J]. J. Opt. Soc. Am. A,2010,27(7):1630.
APA Zhang X,&Edmund Lam.(2010).Edge-preserving sectional image reconstruction in optical scanning holography.J. Opt. Soc. Am. A,27(7),1630.
MLA Zhang X,et al."Edge-preserving sectional image reconstruction in optical scanning holography".J. Opt. Soc. Am. A 27.7(2010):1630.
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