Phase retrieval from reflective fringe patterns of double-sided transparent objects

'Ghosted' fringe patterns simultaneously reflected from both the upper and lower sides of a transparent target in the fringe reflection technique are captured for transparent surface 3D shape measurement, but the phase retrieval from the captured 'ghosted' fringe patterns is stil...

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Main Authors: Huang, Lei, Asundi, Anand Krishna
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2013
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Online Access:https://hdl.handle.net/10356/97607
http://hdl.handle.net/10220/11125
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-976072020-03-07T13:19:19Z Phase retrieval from reflective fringe patterns of double-sided transparent objects Huang, Lei Asundi, Anand Krishna School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering 'Ghosted' fringe patterns simultaneously reflected from both the upper and lower sides of a transparent target in the fringe reflection technique are captured for transparent surface 3D shape measurement, but the phase retrieval from the captured 'ghosted' fringe patterns is still not solved. A novel method is proposed to solve this issue by using two sets of phase-shifted fringe patterns with slightly different frequencies. The nonlinear least-squares method is used to estimate the fringe phase and modulation from both front and rear interfaces. Several simulations are done to show the feasibility of the proposed method. The influence of fringe noise on the algorithm is studied as well, which indicates that the proposed method is able to retrieve the phase from double-sided reflective fringe patterns with fringe noise equivalent to that in practical measurements. The merits and limitations of the method are discussed and recommendations for future studies are made. 2013-07-10T07:36:14Z 2019-12-06T19:44:32Z 2013-07-10T07:36:14Z 2019-12-06T19:44:32Z 2012 2012 Journal Article https://hdl.handle.net/10356/97607 http://hdl.handle.net/10220/11125 10.1088/0957-0233/23/8/085201 en Measurement science and technology © 2012 IOP Publishing Ltd.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Mechanical engineering
spellingShingle DRNTU::Engineering::Mechanical engineering
Huang, Lei
Asundi, Anand Krishna
Phase retrieval from reflective fringe patterns of double-sided transparent objects
description 'Ghosted' fringe patterns simultaneously reflected from both the upper and lower sides of a transparent target in the fringe reflection technique are captured for transparent surface 3D shape measurement, but the phase retrieval from the captured 'ghosted' fringe patterns is still not solved. A novel method is proposed to solve this issue by using two sets of phase-shifted fringe patterns with slightly different frequencies. The nonlinear least-squares method is used to estimate the fringe phase and modulation from both front and rear interfaces. Several simulations are done to show the feasibility of the proposed method. The influence of fringe noise on the algorithm is studied as well, which indicates that the proposed method is able to retrieve the phase from double-sided reflective fringe patterns with fringe noise equivalent to that in practical measurements. The merits and limitations of the method are discussed and recommendations for future studies are made.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Huang, Lei
Asundi, Anand Krishna
format Article
author Huang, Lei
Asundi, Anand Krishna
author_sort Huang, Lei
title Phase retrieval from reflective fringe patterns of double-sided transparent objects
title_short Phase retrieval from reflective fringe patterns of double-sided transparent objects
title_full Phase retrieval from reflective fringe patterns of double-sided transparent objects
title_fullStr Phase retrieval from reflective fringe patterns of double-sided transparent objects
title_full_unstemmed Phase retrieval from reflective fringe patterns of double-sided transparent objects
title_sort phase retrieval from reflective fringe patterns of double-sided transparent objects
publishDate 2013
url https://hdl.handle.net/10356/97607
http://hdl.handle.net/10220/11125
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