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Fast autofocusing in digital holography using the magnitude differential
Lyu, Meng; Yuan, Caojin; Li, Dayan; Situ, Guohai; ghsitu@siom.ac.cn
2017
Source PublicationAppl. Optics
Volume56Issue:13Pages:F152
AbstractTypical methods of automatic estimation of focusing in digital holography calculate every single reconstructed frame to get a critical function and then ascertain the focal plane by finding the extreme value of that function. Here, we propose a digital holographic autofocusing method that computes the focused distance using the first longitudinal difference of the magnitude of the reconstructed image. We demonstrate the proposed method with both numerical simulations and optical experiments of amplitude-contrast and phase-contrast objects. The results suggest that the proposed method performs better than other existing methods, in terms of applicability and computation efficiency, with potential applications in industrial and biomedical inspections where automatic focus tracking is necessary. (C) 2017 Optical Society of America
SubtypeArticle
Department信息光电
DOI10.1364/AO.56.00F152
Funding OrganizationNational Natural Science Foundation of China (NSFC) [61327902, 61377005]; Chinese Academy of Sciences (CAS) [QYZDB-SSW-JSC002] ; National Natural Science Foundation of China (NSFC) [61327902, 61377005]; Chinese Academy of Sciences (CAS) [QYZDB-SSW-JSC002] ; National Natural Science Foundation of China (NSFC) [61327902, 61377005]; Chinese Academy of Sciences (CAS) [QYZDB-SSW-JSC002] ; National Natural Science Foundation of China (NSFC) [61327902, 61377005]; Chinese Academy of Sciences (CAS) [QYZDB-SSW-JSC002]
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China (NSFC) [61327902, 61377005]; Chinese Academy of Sciences (CAS) [QYZDB-SSW-JSC002] ; National Natural Science Foundation of China (NSFC) [61327902, 61377005]; Chinese Academy of Sciences (CAS) [QYZDB-SSW-JSC002] ; National Natural Science Foundation of China (NSFC) [61327902, 61377005]; Chinese Academy of Sciences (CAS) [QYZDB-SSW-JSC002] ; National Natural Science Foundation of China (NSFC) [61327902, 61377005]; Chinese Academy of Sciences (CAS) [QYZDB-SSW-JSC002]
WOS IDWOS:000400503900024
Citation statistics
Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/28492
Collection信息光学与光电技术实验室
Corresponding Authorghsitu@siom.ac.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Lyu, Meng,Yuan, Caojin,Li, Dayan,et al. Fast autofocusing in digital holography using the magnitude differential[J]. Appl. Optics,2017,56(13):F152.
APA Lyu, Meng,Yuan, Caojin,Li, Dayan,Situ, Guohai,&ghsitu@siom.ac.cn.(2017).Fast autofocusing in digital holography using the magnitude differential.Appl. Optics,56(13),F152.
MLA Lyu, Meng,et al."Fast autofocusing in digital holography using the magnitude differential".Appl. Optics 56.13(2017):F152.
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