1 November 1997 Accelerated phase-measuring algorithm of least squares for phase-shifting interferometry
Author Affiliations +
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.
Seung-Woo Kim, MinGu Kang, and Geon-Soo Han "Accelerated phase-measuring algorithm of least squares for phase-shifting interferometry," Optical Engineering 36(11), (1 November 1997). https://doi.org/10.1117/1.601546
Published: 1 November 1997
Lens.org Logo
CITATIONS
Cited by 22 scholarly publications and 1 patent.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Phase shifts

Phase interferometry

Photodetectors

Optical engineering

Phase shifting

Wavefronts

Interferometers

Back to Top