Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.optcom.2004.10.079
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dc.titleShape measurement using one frame projected sawtooth fringe pattern
dc.contributor.authorChen, L.
dc.contributor.authorQuan, C.
dc.contributor.authorTay, C.J.
dc.contributor.authorFu, Y.
dc.date.accessioned2014-06-17T06:33:16Z
dc.date.available2014-06-17T06:33:16Z
dc.date.issued2005-02-15
dc.identifier.citationChen, L., Quan, C., Tay, C.J., Fu, Y. (2005-02-15). Shape measurement using one frame projected sawtooth fringe pattern. Optics Communications 246 (4-6) : 275-284. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optcom.2004.10.079
dc.identifier.issn00304018
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/61283
dc.description.abstractFringe projection technique is a non-contact, full field shape measurement method. The object depth information is recorded as sinusoidal or square wave fringe patterns. The phase-shifting technique or Fourier transform method can be used to extract wrapped phase data and a continuous phase distribution can be retrieved by a phase unwrapping process. In this paper, a shape measurement method using one frame projected sawtooth fringe pattern is proposed. A computer-generated sawtooth pattern is projected by a programmable liquid crystal display (LCD) projector. The deformed sawtooth pattern encoding object shape is converted to a wrapped phase map without using phase shifting or Fourier transform and a continuous phase distribution is retrieved by a quality-guided phase unwrapping algorithm. A special phase quality map, capable of detecting invalid shadowed phase data, is proposed to facilitate the unwrapping process. © 2004 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.optcom.2004.10.079
dc.sourceScopus
dc.subjectFringe projection
dc.subjectPhase retrieval
dc.subjectPhase unwrapping
dc.subjectSawtooth fringe pattern
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.optcom.2004.10.079
dc.description.sourcetitleOptics Communications
dc.description.volume246
dc.description.issue4-6
dc.description.page275-284
dc.description.codenOPCOB
dc.identifier.isiut000227311900004
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