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dc.contributor.authorHe, Xiaoyuen
dc.contributor.authorZheng, Dongliangen
dc.contributor.authorQian, Kemaoen
dc.identifier.citationHe, X., Zheng, D. & Qian, K. (2019). Octal gray-code phase unwrapping for high-speed fringe projection profilometry. IWAIT-IFMIA 2019en
dc.description.abstractThe speed of a fringe projection profilometry system is of great importance for the measurement of dynamic objects. The previous quaternary gray-code phase unwrapping method uses only five patterns to recover an absolute phase which is suitable for high-speed measurement. However, this method requires a pre-knowledge of the minimum depth and it limits the object to move in a small range of depth. To extend the measurement range, we proposed an octal gray-code phase unwrapping method, in which five patterns are required. We apply this method to different objects and analysis the experiment results. This method can recover a good-quality phase map for sample objects, while its performance is decreased when the object is complex or with an improper defocusing level.en
dc.rights© 2019 Institute of Electrical and Electronics Engineers (IEEE). All rights reserved. This paper was published in International Workshop on Advanced Image Technology (IWAIT) and is made available with permission of Institute of Electrical and Electronics Engineers (IEEE).en
dc.subjectPhase Unwrappingen
dc.subjectOctal Gray Codeen
dc.subjectDRNTU::Engineering::Electrical and electronic engineeringen
dc.titleOctal gray-code phase unwrapping for high-speed fringe projection profilometryen
dc.typeConference Paperen
dc.contributor.schoolInterdisciplinary Graduate School (IGS)en
dc.contributor.conferenceIWAIT-IFMIA 2019en
dc.description.versionAccepted versionen
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