Phase unwrapping error reduction framework for a multiple-wavelength phase-shifting algorithm

dc.contributor.author Zhang, Song
dc.contributor.department Mechanical Engineering
dc.date 2018-02-15T07:27:48.000
dc.date.accessioned 2020-06-30T06:03:13Z
dc.date.available 2020-06-30T06:03:13Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2009
dc.date.embargo 2014-11-05
dc.date.issued 2009-10-23
dc.description.abstract <p>We address a framework to reduce the unwrapping errors of the measurement system using a digital multiple-wavelength phase-shifting algorithm. In particular, the following framework is proposed: (1) smooth the raw phase by smoothing the sine and cosine images of the phase computation of the inverse tangent function; (2) locate and remove the incorrectly unwrapped points by the monotonicity condition of the phase map; (3) obtain the unwrapped phase map for the shortest wavelength without smoothing; (4) detect holes and fill them to preserve as much useful information as possible. Experiments demonstrated that the proposed framework significantly alleviated the measurement errors caused by the phase noise.</p>
dc.description.comments <p>This article is from <em>Optical Engineering</em> 48 (2009): 1, <a href="http://dx.doi.org/10.1117/1.3251280" target="_blank">doi:10.1117/1.3251280</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/me_pubs/123/
dc.identifier.articleid 1124
dc.identifier.contextkey 6329989
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath me_pubs/123
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/54971
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/me_pubs/123/2009_Zhang_PhaseUnwrapping.pdf|||Fri Jan 14 19:17:42 UTC 2022
dc.source.uri 10.1117/1.3251280
dc.subject.disciplines Computer-Aided Engineering and Design
dc.subject.disciplines Graphics and Human Computer Interfaces
dc.subject.disciplines Non-linear Dynamics
dc.subject.disciplines Numerical Analysis and Computation
dc.subject.keywords Virtual Reality Applications Center
dc.subject.keywords Human Computer Interaction
dc.subject.keywords structured light
dc.subject.keywords phase shifting
dc.subject.keywords phase unwrapping
dc.subject.keywords multiple wavelength
dc.subject.keywords phase error
dc.title Phase unwrapping error reduction framework for a multiple-wavelength phase-shifting algorithm
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 6d38ab0f-8cc2-4ad3-90b1-67a60c5a6f59
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