Document Type
Article
Publication Date
12-15-2010
Journal or Book Title
Optics Letters
Volume
35
Issue
24
First Page
4121
Last Page
4123
DOI
10.1364/OL.35.004121
Abstract
Recently, a study showed that generating sinusoidal fringe patterns by properly defocusing binary ones can significantly simplify three-dimensional shape measurement system development and drastically improve its speed. However, when the fringe stripes are very wide, it is very difficult for this technique to achieve high-quality measurement. This Letter presents a method to improve this technique by selectively eliminating high-frequency harmonics induced by a squared binary pattern. As a result, better sinusoidal fringe patterns can be generated with a small degree of defocusing even for wide fringe stripes. Simulation and experiments will be presented to verify the performance of this proposed technique.
Rights
This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.35.004121. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Copyright Owner
Optical Society of America
Copyright Date
2010
Language
en
File Format
application/pdf
Recommended Citation
Wang, Yajun and Zhang, Song, "Optimal pulse width modulation for sinusoidal fringe generation with projector defocusing" (2010). Mechanical Engineering Publications. 96.
https://lib.dr.iastate.edu/me_pubs/96
Comments
This article is from Optics Letters 35 (2010): 4121–4123, doi:10.1364/OL.35.004121. Posted with permission.