Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijleo.2004.12.013
Title: Fringe contrast-based 3D profilometry using fringe projection
Authors: Chen, L.
Quan, C. 
Tay, C.J. 
Huang, Y.
Keywords: Fringe contrast
Fringe projection
Phase-shifting
Quality-guided phase unwrapping
Shape measurement
Issue Date: 13-Apr-2005
Source: Chen, L., Quan, C., Tay, C.J., Huang, Y. (2005-04-13). Fringe contrast-based 3D profilometry using fringe projection. Optik 116 (3) : 123-128. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijleo.2004.12.013
Abstract: Quality-guided algorithm is a widely used method in phase unwrapping. This paper shows an accurate quality map based on fringe contrast for 3D shape measurement. Phase-shifted fringe patterns are projected onto an object surface by a programmable liquid crystal projector and recorded by a CCD camera. A wrapped phase map and a fringe contrast map are extracted from the deformed fringe patterns by the phase-shifting technique. Guided by the contrast map, the quality-guided unwrapping algorithm minimizes unwanted shadow and non-uniform surface reflectance effects and is able to retrieve a correct surface profile. Validity of the proposed method is tested on a fish model and a cutting tool specimen. © 2005 Elsevier GmbH. All rights reserved.
Source Title: Optik
URI: http://scholarbank.nus.edu.sg/handle/10635/60377
ISSN: 00304026
DOI: 10.1016/j.ijleo.2004.12.013
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