Absolute phase recovery of three fringe patterns with selected spatial frequencies," Optics and Lasers in Engineering, vol. 70, pp. 18-25, 2015. Absolute phase recovery of three fringe patterns with selected spatial frequencies
AbstractA new temporal approach is presented for the recovery of the absolute phase maps from their wrapped versions based on the use of fringe patterns of three different spatial frequencies. In contrast to the twofrequency method recently published, the method proposed is characterized by better anti-error capability as measured by phase error tolerance bound. A general rule for the selection of the three frequencies is presented, and its relationship to the phase error tolerance bound is derived. Theoretical analysis and experimental results are also presented to validate the effectiveness of the proposed three frequency technique. Abstract: A new temporal approach is presented for the recovery of the absolute phase maps from their wrapped versions based on the use of the fringe patterns of three different spatial frequencies. In contrast to the twofrequency method recently published, the method proposed is characterized by better anti-error capability as measured by phase error tolerance bound. A general rule for the selection of the three frequencies is presented, and its relationship to the phase error tolerance bound is derived. Theoretical analysis and experimental results are also presented to validate the effectiveness of the proposed three frequency technique.
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