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Real-time 3D shape measurement by fringe projection and GPU parallel computing

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

When fringe projection profilometry is applied for real-time 3D shape measurement, several problems remain to be solved such as multi-wavelength heterodyne phase unwrapping is sensitive to motion and the computation cost is high. In this paper, a real-time 3D shape measurement method with optimized multi-wavelength heterodyne phase unwrapping and GPU parallel computing is proposed. Experimental results demonstrate that the proposed method can acquire 3D shape at 40 fps. Dynamic object with discontinuities can be measured and the phase unwrapping mistakes are eliminated by smoothing the phase of beat frequency during multi-wavelength heterodyne phase unwrapping.

Original languageEnglish
Title of host publicationTenth International Symposium on Precision Engineering Measurements and Instrumentation
EditorsJie Lin, Jiubin Tan
PublisherSPIE
ISBN (Electronic)9781510627819
DOIs
StatePublished - 2019
Event10th International Symposium on Precision Engineering Measurements and Instrumentation, ISPEMI 2018 - Kunming, China
Duration: 8 Aug 201810 Aug 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11053
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference10th International Symposium on Precision Engineering Measurements and Instrumentation, ISPEMI 2018
Country/TerritoryChina
CityKunming
Period8/08/1810/08/18

Keywords

  • 3D shape measurement
  • Fringe projection
  • GPU parallel computing
  • Phase unwrapping

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