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Optical Engineering

Phase unwrapping for fringe projection three-dimensional measurement with projector defocusing
Author(s): Dongliang Zheng; Feipeng Da; Heming Huang
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Paper Abstract

For high-speed three-dimensional shape measurement, techniques with projector defocusing have become increasingly important. When the projector is defocused, structured patterns used for phase unwrapping are blurred. These blurred patterns need to be normalized into binary distributions in actual measurement. We propose a method to normalize these blurred structured patterns. The retrieved absolute phase is correct even when the measured objects contain discontinuous parts or contrasting colors.

Paper Details

Date Published: 31 March 2016
PDF: 7 pages
Opt. Eng. 55(3) 034107 doi: 10.1117/1.OE.55.3.034107
Published in: Optical Engineering Volume 55, Issue 3
Show Author Affiliations
Dongliang Zheng, Southeast Univ. (China)
(China)
Feipeng Da, Southeast Univ. (China)
(United States)
Heming Huang, Qinghai Normal Univ. (China)


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