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Title: Analysis of phase distortion in phase-shifted fringe projection
Authors: Miao, Hong
Quan, Chenggen
Tay, Cho Jui
Fu, Yu
Keywords: DRNTU::Science::Physics::Optics and light
Issue Date: 2006
Source: Miao, H., Quan, C., Tay, C. J., & Fu, Y. (2006). Analysis of phase distortion in phase-shifted fringe projection. Optics and Lasers in Engineering, 45(2), 318-338.
Series/Report no.: Optics and Lasers in Engineering
Abstract: This paper describes the analysis of phase distortion in phase-shifted fringe projection method. A phase distortion occurs when the phase shifting technique is applied to extract the phase values from projected fringe patterns in surface contouring. The phase distortion will induce measurement errors especially in the measurement of micro-components. The cause of such phase distortion is investigated and the influence of phase distortion on the measurement of micro-components is discussed. To eliminate the phase distortion, a continuous wavelet transform (CWT) is employed to extract phase values from object surface modulated fringe patterns. Principle of the proposed CWT phase extraction method is described and experiments are conducted to verify the proposed method. It is shown that by the use of CWT phase extraction method phase distortion induced in conventional phase-shifting technique can be completely eliminated.
DOI: 10.1016/j.optlaseng.2005.12.008
Rights: This is the author created version of a work that has been peer reviewed and accepted for publication by Optics and Lasers in Engineering, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI:]
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:TL Journal Articles

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