Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/140095
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dc.contributor.authorAgarwal, Nimishaen_US
dc.contributor.authorWang, Chenxingen_US
dc.contributor.authorQian, Kemaoen_US
dc.date.accessioned2020-05-26T07:29:22Z-
dc.date.available2020-05-26T07:29:22Z-
dc.date.issued2018-
dc.identifier.citationAgarwal, N., Wang, C., & Qian, K. (2018). Windowed Fourier ridges for demodulation of carrier fringe patterns with nonlinearity : a theoretical analysis. Applied Optics, 57(21), 6198-6206. doi:10.1364/AO.57.006198en_US
dc.identifier.issn1559-128Xen_US
dc.identifier.urihttps://hdl.handle.net/10356/140095-
dc.description.abstractAccurately extracting phase or phase derivative is the most important requirement in optical metrology. However, in practice, there are many error sources, among which nonlinear distortion in fringe patterns is often encountered. Several techniques have been proposed over time to remove the nonlinearity error. Among these techniques, the windowed Fourier ridges (WFR) algorithm has been shown to be an effective solution insensitive to nonlinearity, but it lacks a theoretical justification. In this paper, we theoretically analyze the local frequency estimation error and phase extraction error, which not only proves the mentioned insensitivity, but also supports the performance prediction and error control, and thus is very important and useful in optical measurement. The theoretical results have been verified by computer simulations. Other error sources such as model error and noise are also compared and discussed.en_US
dc.language.isoenen_US
dc.relation.ispartofApplied Opticsen_US
dc.rights© 2018 Optical Society of America. All rights reserved.en_US
dc.subjectEngineering::Computer science and engineeringen_US
dc.titleWindowed Fourier ridges for demodulation of carrier fringe patterns with nonlinearity : a theoretical analysisen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Computer Science and Engineeringen_US
dc.identifier.doi10.1364/AO.57.006198-
dc.identifier.pmid30118000-
dc.identifier.scopus2-s2.0-85050239000-
dc.identifier.issue21en_US
dc.identifier.volume57en_US
dc.identifier.spage6198en_US
dc.identifier.epage6206en_US
dc.subject.keywordsPhase Retrievalen_US
dc.subject.keywordsFringe Analysisen_US
item.grantfulltextnone-
item.fulltextNo Fulltext-
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