Abstract
A new phase stepping method is presented, based on the combination of spatial and temporal phase stepping. The method comprises one fixed spatial phase step of π/2 and two arbitrary, unknown temporal phase steps. The method prevents phase errors caused by phase changes during temporal phase stepping. It is therefore in particular useful for dynamic applications, but will also improve system performance for quasi-static applications in non-ideal environments.
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References
B. V. Dorrio and J. L. Fernandez, “Phase-evaluation methods in whole-field optical measurement techniques”, Measurement Science & Technology, vol. 10, pp. R33–R55 (1999).
Peter A.A.M. Somers and Hedser van Brug, “A single camera, dual image real-time-phase-stepped shearing speckle interferometer”, Proceedings Fringe 2001, pp. 573–580, Wolfgang Osten, Werner Jü ptner, eds, Elsevier (2001).
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© 2006 Springer-Verlag Berlin Heidelberg
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Somers, P.A., Bhattacharya, N. (2006). Determination of modulation and background intensity by uncalibrated temporal phase stepping in a two-bucket spatially phase stepped speckle interferometer. In: Osten, W. (eds) Fringe 2005. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-29303-5_34
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DOI: https://doi.org/10.1007/3-540-29303-5_34
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-26037-0
Online ISBN: 978-3-540-29303-3
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