Paper
6 October 2000 Error analysis of shorter demodulation algorithms for phase-shifting interferometry
Mei Hui, Hanben Niu, Qingxiang Li
Author Affiliations +
Proceedings Volume 4231, Advanced Optical Manufacturing and Testing Technology 2000; (2000) https://doi.org/10.1117/12.402845
Event: International Topical Symposium on Advanced Optical Manufacturing and Testing Technology, 2000, Chengdu, China
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.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mei Hui, Hanben Niu, and Qingxiang Li "Error analysis of shorter demodulation algorithms for phase-shifting interferometry", Proc. SPIE 4231, Advanced Optical Manufacturing and Testing Technology 2000, (6 October 2000); https://doi.org/10.1117/12.402845
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KEYWORDS
Phase shifts

Demodulation

Phase interferometry

Error analysis

Phase measurement

CCD cameras

Cameras

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