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Article
Three-dimensional profilometry with nearly focused binary phase-shifting algorithms
Optics Letters
  • Laura D. Ekstrand, Iowa State University
  • Song Zhang, Iowa State University
Document Type
Article
Publication Date
12-1-2011
DOI
10.1364/OL.36.004518
Abstract

This Letter investigates the effects of different phase-shifting algorithms on the quality of high-resolution three-dimensional (3-D) profilometry produced with nearly focused binary patterns. From theoretical analyses, simulations, and experiments, we found that the nine-step phase-shifting algorithm produces accurate 3-D measurements at high speed without the limited depth range and calibration difficulties that typically plague binary defocusing methods. We also found that the use of more fringe patterns does not necessarily enhance measurement quality.

Comments

This article is from Optics Letters 36 (2011): 4518–4520, doi:10.1364/OL.36.004518. Posted with permission.

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.36.004518. 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
Language
en
File Format
application/pdf
Citation Information
Laura D. Ekstrand and Song Zhang. "Three-dimensional profilometry with nearly focused binary phase-shifting algorithms" Optics Letters Vol. 36 Iss. 23 (2011) p. 4518 - 4520
Available at: http://works.bepress.com/song_zhang/3/