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- W2000920152 abstract "It is generally acknowledged that it takes at least three phase-stepped speckle patterns to obtain quantitative phase information. However, if only a phase change has to be determined, a two-bucket approach can be followed, under certain conditions. The background of the two-bucket algorithm, and the requirements with respect to the use of it, are explained. Examples of modeled and measured phase stepped speckle intensity data, showing numerical instability when conditions are not met are presented. It is also shown that two phase-stepped speckle pattern pairs, taken before and after an event can be sufficient to determine phase changes invoked by the event.© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only." @default.
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- W2000920152 date "2003-05-27" @default.
- W2000920152 modified "2023-09-23" @default.
- W2000920152 title "A two-bucket phase-stepped shearing speckle interferometer: Why does it work?" @default.
- W2000920152 doi "https://doi.org/10.1117/12.516630" @default.
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