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Article: Illumination-invariant phase-shifting algorithm for three-dimensional profilometry of a moving object

TitleIllumination-invariant phase-shifting algorithm for three-dimensional profilometry of a moving object
Authors
KeywordsIndustrial inspection
Profilometry
Surface measurements
Three-dimensional image acquisition
Issue Date2012
PublisherSPIE - International Society for Optical Engineering. The Journal's web site is located at http://www.spie.org/oe
Citation
Optical Engineering, 2012, v. 51 n. 9, article no. 097001 How to Cite?
AbstractUneven illumination is a common problem in practical optical systems designed for machine vision applications, and it leads to significant errors when phase-shifting algorithms (PSA) are used to reconstruct the surface of a moving object. We propose an illumination-reflectivity-focus model to characterize this uneven illumination effect on phase-measuring profilometry. With this model, we separate the illumination factor effectively and consider the phase reconstruction from an optimization perspective. Furthermore, we formulate an illumination-invariant phase-shifting algorithm (II-PSA) to reconstruct the surface of a moving object under an uneven illumination environment. Experimental results show that it can improve the reconstruction quality both visually and numerically.
Persistent Identifierhttp://hdl.handle.net/10722/185911
ISSN
2023 Impact Factor: 1.1
2023 SCImago Journal Rankings: 0.331
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorDeng, F-
dc.contributor.authorLiu, C-
dc.contributor.authorSze, W-
dc.contributor.authorDeng, J-
dc.contributor.authorFung, K-
dc.contributor.authorLeung, W-
dc.contributor.authorLam, EYM-
dc.date.accessioned2013-08-20T11:44:23Z-
dc.date.available2013-08-20T11:44:23Z-
dc.date.issued2012-
dc.identifier.citationOptical Engineering, 2012, v. 51 n. 9, article no. 097001-
dc.identifier.issn0091-3286-
dc.identifier.urihttp://hdl.handle.net/10722/185911-
dc.description.abstractUneven illumination is a common problem in practical optical systems designed for machine vision applications, and it leads to significant errors when phase-shifting algorithms (PSA) are used to reconstruct the surface of a moving object. We propose an illumination-reflectivity-focus model to characterize this uneven illumination effect on phase-measuring profilometry. With this model, we separate the illumination factor effectively and consider the phase reconstruction from an optimization perspective. Furthermore, we formulate an illumination-invariant phase-shifting algorithm (II-PSA) to reconstruct the surface of a moving object under an uneven illumination environment. Experimental results show that it can improve the reconstruction quality both visually and numerically.-
dc.languageeng-
dc.publisherSPIE - International Society for Optical Engineering. The Journal's web site is located at http://www.spie.org/oe-
dc.relation.ispartofOptical Engineering-
dc.rightsCopyright 2012 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited. This article is available online at https://doi.org/10.1117/1.OE.51.9.097001-
dc.subjectIndustrial inspection-
dc.subjectProfilometry-
dc.subjectSurface measurements-
dc.subjectThree-dimensional image acquisition-
dc.titleIllumination-invariant phase-shifting algorithm for three-dimensional profilometry of a moving object-
dc.typeArticle-
dc.identifier.emailLam, EYM: elam@eee.hku.hk-
dc.identifier.authorityLam, EYM=rp00131-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1117/1.OE.51.9.097001-
dc.identifier.scopuseid_2-s2.0-84870588592-
dc.identifier.hkuros220481-
dc.identifier.volume51-
dc.identifier.issue9-
dc.identifier.spagearticle no. 097001-
dc.identifier.epagearticle no. 097001-
dc.identifier.isiWOS:000309914800040-
dc.publisher.placeUnited States-
dc.identifier.issnl0091-3286-

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