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Title: Blind phase error suppression for color-encoded digital fringe projection profilometry
Authors: Ma, S.
Zhu, R.
Quan, C. 
Li, B.
Tay, C.J. 
Chen, L.
Keywords: Blind phase error suppression
Carrier squeezing interferometry (CSI)
Color-encoded digital fringe projection profilometry (CDFPP)
Dynamic measurement
Isotropic n-dimensional fringe pattern normalization (INFPN)
Issue Date: 1-Apr-2012
Citation: Ma, S., Zhu, R., Quan, C., Li, B., Tay, C.J., Chen, L. (2012-04-01). Blind phase error suppression for color-encoded digital fringe projection profilometry. Optics Communications 285 (7) : 1662-1668. ScholarBank@NUS Repository.
Abstract: Color-encoded digital fringe projection profilometry (CDFPP) has the advantage of fast speed, non-contact and full-field testing. It is one of the most important dynamic three-dimensional (3D) profile measurement techniques. However, due to factors such as color cross-talk and gamma distortion of electro-optical devices, phase errors arise when conventional phase-shifting algorithms with fixed phase shift values are utilized to retrieve phases. In this paper, a simple and effective blind phase error suppression approach based on isotropic n-dimensional fringe pattern normalization (INFPN) and carrier squeezing interferometry (CSI) is proposed. It does not require pre-calibration for the gamma and color-coupling coefficients or the phase shift values. Simulation and experimental works show that our proposed approach is able to effectively suppress phase errors and achieve accurate measurement results in CDFPP. © 2011 Elsevier B.V. All rights reserved.
Source Title: Optics Communications
ISSN: 00304018
DOI: 10.1016/j.optcom.2011.12.027
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