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Optical Engineering

Subfringe integration profilometry of three-dimensional diffuse objects
Author(s): Ming Wang; Jingang Zhong; Dacheng Li
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Paper Abstract

A fringe analysis technique is proposed to automatically measure 3-D object shape. A grating pattern is projected onto an object, and the grating pattern deforms in accordance with the 3-D object. This deformed grating image is analyzed by means of the subfringe integration algorithm (SIA), in which the phase is retrieved using N bucket integration. Only one frame of the image is sufficient to obtain the phase distribution and the object shape at every pixel on measured object. Theoretical analysis, experimental results, and simulation calculations are presented.

Paper Details

Date Published: 1 September 1997
PDF: 6 pages
Opt. Eng. 36(9) doi: 10.1117/1.601489
Published in: Optical Engineering Volume 36, Issue 9
Show Author Affiliations
Ming Wang, Nanchang Univ. (Japan)
Jingang Zhong, Nanchang Univ. (China)
Dacheng Li, Tsinghua Univ. (China)


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