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Improving the accuracy performance of phase-shifting profilometry for the measurement of objects in motion

Journal Article


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Abstract


  • This Letter presents a new approach to reducing the errors associated with the shape measurement of a rigid object in motion by means of phase-shifting profilometry. While the work previously reported is only valid for the case of two-dimensional (2-D) movement, the proposed method is effective for a situation in which the object moves in a three-dimensional (3-D) space. First, a new model is proposed to describe the fringe patterns reflected from the object, which is subject to 3-D movement. Then, an iterative least-squares algorithm is presented to estimate the phase map. Experiments show that, in contrast to conventional phase-shifting profilometry, the proposed method is capable of significantly reducing the error caused by the 3-D movement of the object.

Publication Date


  • 2014

Citation


  • L. Lu, J. Xi, Y. Yu & Q. Guo, "Improving the accuracy performance of phase-shifting profilometry for the measurement of objects in motion," Optics Letters, vol. 39, (23) pp. 6715-6718, 2014.

Scopus Eid


  • 2-s2.0-84914680255

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4360&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3344

Has Global Citation Frequency


Number Of Pages


  • 3

Start Page


  • 6715

End Page


  • 6718

Volume


  • 39

Issue


  • 23

Place Of Publication


  • United States

Abstract


  • This Letter presents a new approach to reducing the errors associated with the shape measurement of a rigid object in motion by means of phase-shifting profilometry. While the work previously reported is only valid for the case of two-dimensional (2-D) movement, the proposed method is effective for a situation in which the object moves in a three-dimensional (3-D) space. First, a new model is proposed to describe the fringe patterns reflected from the object, which is subject to 3-D movement. Then, an iterative least-squares algorithm is presented to estimate the phase map. Experiments show that, in contrast to conventional phase-shifting profilometry, the proposed method is capable of significantly reducing the error caused by the 3-D movement of the object.

Publication Date


  • 2014

Citation


  • L. Lu, J. Xi, Y. Yu & Q. Guo, "Improving the accuracy performance of phase-shifting profilometry for the measurement of objects in motion," Optics Letters, vol. 39, (23) pp. 6715-6718, 2014.

Scopus Eid


  • 2-s2.0-84914680255

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4360&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3344

Has Global Citation Frequency


Number Of Pages


  • 3

Start Page


  • 6715

End Page


  • 6718

Volume


  • 39

Issue


  • 23

Place Of Publication


  • United States