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Optical Engineering

Accelerated phase-measuring algorithm of least squares for phase-shifting interferometry
Author(s): Seung-Woo Kim; MinGu Kang; Geon-Soo Han
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Paper Abstract

One important issue in phase-shifting interferometry is to eliminate or compensate for phase shift errors. One solution is to adopt a least-squares technique in that actual reference values of phase shifts are readily identified directly from interferograms. This however, requires a relatively long computation time since a considerable amount of intensity information must be processed in an iterative way. To cope with this problem, we present an accelerated version of a least-squares phasemeasuring algorithm that can drastically reduce computation time.

Paper Details

Date Published: 1 November 1997
PDF: 6 pages
Opt. Eng. 36(11) doi: 10.1117/1.601546
Published in: Optical Engineering Volume 36, Issue 11
Show Author Affiliations
Seung-Woo Kim, Korea Advanced Institute of Science and Technology (South Korea)
MinGu Kang, Korea Advanced Institute of Science and Technology (South Korea)
Geon-Soo Han, Korea Advanced Institute of Science and Technology (South Korea)


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