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Proceedings Paper

Error analysis of shorter demodulation algorithms for phase-shifting interferometry
Author(s): Mei Hui; Hanben Niu; Qingxiang Li
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Paper Abstract

More than four intensity values will become cumbersome if the space bandwidth product of the CCD camera is to be fully exploited. But the shortest algorithms are also the ones that are most sensitive to intensity noise, mechanical vibration, and errors in phase-shifting. This paper presents the four- frame shorter phase demodulation algorithm for PSI which nearly insensitive to linear error.

Paper Details

Date Published: 6 October 2000
PDF: 3 pages
Proc. SPIE 4231, Advanced Optical Manufacturing and Testing Technology 2000, (6 October 2000); doi: 10.1117/12.402845
Show Author Affiliations
Mei Hui, Xi'an Institute of Optics and Fine Mechanics (China)
Hanben Niu, Xi'an Institute of Optics and Fine Mechanics (China)
Qingxiang Li, Xi'an Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 4231:
Advanced Optical Manufacturing and Testing Technology 2000
Li Yang; Harvey M. Pollicove; Qiming Xin; James C. Wyant, Editor(s)

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