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Optical Engineering

Automated Moire Contouring Of Diffuse Surfaces
Author(s): Guan-Chang Jin; Shouhong Tang
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Paper Abstract

A simple new method of automatically reconstructing the 3-D surface of an object from 2-D moire patterns is proposed. The method can automatically and accurately obtain phase value at every pixel point without assigning fringe orders and interpreting data in the regions between fringes by using a discrete cosine transform based algorithm, which is free from errors caused by the higher harmonic components, the variation of dc light level, and the modulations of amplitudes on a fringe pattern. The method is capable of fully automatic distinction between depression and elevation on an object surface. Theoretical analysis and experimental verification are presented.

Paper Details

Date Published: 1 November 1989
PDF: 5 pages
Opt. Eng. 28(11) doi: 10.1117/12.7977121
Published in: Optical Engineering Volume 28, Issue 11
Show Author Affiliations
Guan-Chang Jin, Tsinghua University (China )
Shouhong Tang, Oakland University (United States)


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