Analysis of unknown phase shift errors between speckle fringe patterns using Pearson correlation coefficient

Leonid I. Muravsky; Yaroslav P. Kulynych

doi:10.1117/12.3014313

5 January 2024 Analysis of unknown phase shift errors between speckle fringe patterns using Pearson correlation coefficient

Leonid I. Muravsky, Yaroslav P. Kulynych

Author Affiliations +

Proceedings Volume 12938, Sixteenth International Conference on Correlation Optics; 129381R (2024) https://doi.org/10.1117/12.3014313
Event: International Conference Correlation Optics (COR 2023), 2023, Chernivtsi, Ukraine

Abstract

Results of computing unknown phase shift (UPS) errors between synthesized speckle fringe patterns (SFPs) using the population Pearson correlation coefficient (PPCC) are represented. It is shown that mean absolute error of UPS between normalized SFPs is very small over the entire range of phase shifts from 0 to 180 if the RMS height Sq of the 3D rough surface exceeds one seventh of the laser wavelength. These results indicate the possibility of using the PPCC to calculate the UPS in phase shifting digital speckle pattern interferometry.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Leonid I. Muravsky and Yaroslav P. Kulynych "Analysis of unknown phase shift errors between speckle fringe patterns using Pearson correlation coefficient", Proc. SPIE 12938, Sixteenth International Conference on Correlation Optics, 129381R (5 January 2024); https://doi.org/10.1117/12.3014313

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