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Development of a fast and accurate color-encoded digital fringe projection profilometry

  • Z. Liu*
  • , C. Quan
  • , C. J. Tay
  • *Corresponding author for this work
  • National University of Singapore

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

Abstract

In the past two decades, fringe projection profilometry (FPP) has been widely used in three-dimensional (3D) profile measurement for its fast speed and high accuracy. As a branch of FPP, color-encoded digital fringe projection profilometry (CDFPP) has been applied to surface profile measurement. CDFPP has the advantage of being fast speed, non-contact and full-field. It is one of the most important dynamic 3D profile measurement techniques. However, due to color cross-talk and gamma distortions of electro-optical devices, phase errors arise in using conventional phase-shifting algorithms to retrieve the phase in CDFPP. Therefore, it is important to develop methods for phase error suppression in CDFPP and thus realizing fast and accurate profile measurement. In this paper, a phase error suppression technique is proposed to overcome color cross-talk and gamma distortions. The proposed method is able to carry out fast and accurate surface profile measurement. The real data experimental results show that the proposed method can effectively suppress phase errors and achieve accurate measurements in CDFPP.

Original languageEnglish
Title of host publicationInternational Conference on Optics in Precision Engineering and Nanotechnology, icOPEN 2013
DOIs
StatePublished - 2013
EventInternational Conference on Optics in Precision Engineering and Nanotechnology, icOPEN 2013 - Singapore, Singapore
Duration: 9 Apr 201311 Apr 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8769
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Conference on Optics in Precision Engineering and Nanotechnology, icOPEN 2013
Country/TerritorySingapore
CitySingapore
Period9/04/1311/04/13

Keywords

  • Blind phase error suppression
  • Color-encoded digital fringe projection profilometry (CDFPP)
  • Phase error
  • Profile measurement

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