One of the main error sources for phase shifting interferometry is the linear phase shift error. Thispaper presents a self-calibrating phase-measuring algorithm that is free from errors produced by this errorsource. I...
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ISBN:
(纸本)0819422487
One of the main error sources for phase shifting interferometry is the linear phase shift error. This
paper presents a self-calibrating phase-measuring algorithm that is free from errors produced by this error
source. In the other words, the proposed algorithm is able to obtain an accurate phase at every pixel point
in the interferograms over a wide range of equally spaced phase shifts. The algorithm requires the
acquisition of five phase shifted interferograms. It resembles the well-known carre' s algorithm, but with
one extra frame. This algorithm, however, has considerable advantages over Cane' s algorithm.
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