Please use this identifier to cite or link to this item: https://doi.org/10.1117/1.2939418
DC FieldValue
dc.titleRetrieval of instantaneous frequency from digital holograms based on adaptive windows
dc.contributor.authorChen, W.
dc.contributor.authorQuan, C.
dc.contributor.authorTay, C.J.
dc.date.accessioned2014-06-17T06:32:39Z
dc.date.available2014-06-17T06:32:39Z
dc.date.issued2008
dc.identifier.citationChen, W., Quan, C., Tay, C.J. (2008). Retrieval of instantaneous frequency from digital holograms based on adaptive windows. Optical Engineering 47 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1117/1.2939418
dc.identifier.issn00913286
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/61234
dc.description.abstractIn recent years, time-frequency analysis methods have been significantly developed for the processing of fringe patterns. Among such methods, the short-time Fourier transform (STFT) has been proven a valid method to process noisy fringe patterns. In this paper, the complex phasor and the STFT are used to retrieve instantaneous frequency from a series of holograms based on adaptive windows. Continuous phase maps are calculated by integration of the extracted instantaneous frequency, and phase unwrapping is effectively avoided in both temporal and spatial domains. The validity of this method is verified by an experiment. In addition, a comparison between conventional temporal phase unwrapping and the STFT is presented. © 2008 Society of Photo-Optical Instrumentation Engineers.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1117/1.2939418
dc.sourceScopus
dc.subjectcomplex phasor
dc.subjectcontinuous deformation
dc.subjectdigital holography
dc.subjectinstantaneous frequency
dc.subjectshort-time Fourier transform
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1117/1.2939418
dc.description.sourcetitleOptical Engineering
dc.description.volume47
dc.description.issue6
dc.description.page-
dc.description.codenOPEGA
dc.identifier.isiut000257884800023
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

10
checked on Feb 14, 2020

WEB OF SCIENCETM
Citations

8
checked on Feb 14, 2020

Page view(s)

31
checked on Feb 18, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.