Paper
17 July 1996 Errors in two-directional spatial-carrier phase shifting method for closed fringe patterns analysis
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Abstract
Two-directional method was proposed for analysis of crossed or closed fringe paUerns. This paper focuses on the analysis of closed fringe pauern and the major limitations for the N-point algorithms (standard five-point, modified five- and threepoint algorithms).The limitations include the influence of the tilt of fringes, variations in the background intensity and contrast functions, the nonlinearities in a detection system, random noise. Computer simulation reveal the character and the magnitude of the major errors for all algorithms tested. The comparison of the results obtained is given and the advantages ofusing the modified five- and three-point algorithm are described.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Maria Pirga and Malgorzata Kujawinska "Errors in two-directional spatial-carrier phase shifting method for closed fringe patterns analysis", Proc. SPIE 2860, Laser Interferometry VIII: Techniques and Analysis, (17 July 1996); https://doi.org/10.1117/12.276338
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Cited by 4 scholarly publications.
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KEYWORDS
Fringe analysis

Error analysis

Computer simulations

Phase shifting

Sensors

Detection and tracking algorithms

Phase retrieval

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