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Optical Engineering

Application of improved phase-measuring profilometry in nonconstant environmental light
Author(s): Wansong Li; Xianyu Su
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Paper Abstract

The accuracy of phase-measuring profilometry is greatly influenced by environmental light, especially outdoors. The errors caused by changes of the environmental light are analyzed, and some simulated fringe patterns are processed. A new calibration algorithm, which performs intensity background and fringe amplitude transformations, is proposed. Theoretical analysis and experimental results verify that the improved phase-measuring profilometry is insensitive to the change of environmental light.

Paper Details

Date Published: 1 March 2001
PDF: 8 pages
Opt. Eng. 40(3) doi: 10.1117/1.1349212
Published in: Optical Engineering Volume 40, Issue 3
Show Author Affiliations
Wansong Li, Sichuan Univ. (China)
Xianyu Su, Sichuan Univ. (China)

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