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Color-fringe pattern profilometry using a generalized phase-shifting algorithm.

Jorge L Flores, José A Ferrari, G García Torales

    Applied Optics
    |November 13, 2015
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a color-channel approach for dynamic 3D measurements using fringe pattern profilometry. A generalized phase-shifting algorithm effectively reduces phase errors caused by color crosstalk.

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    Area of Science:

    • Optical Metrology
    • 3D Imaging
    • Computer Vision

    Background:

    • Sequential phase-shifting fringe pattern profilometry faces limitations in dynamic measurements.
    • Color-channel-based approaches offer potential for faster data acquisition.

    Purpose of the Study:

    • To present a color-channel-based fringe pattern profilometry technique for dynamic measurements.
    • To address and mitigate phase errors caused by color crosstalk.

    Main Methods:

    • Projecting and acquiring a single color image with three sinusoidal phase-shifted patterns.
    • Utilizing a generalized phase-shifting algorithm with arbitrary phase-shift values to overcome color crosstalk.

    Main Results:

    • The proposed technique enables phase retrieval from a single color image.
    • Simulations and experiments demonstrate significant reduction in color crosstalk influence.

    Conclusions:

    • The generalized phase-shifting algorithm effectively minimizes phase errors in color-channel-based fringe pattern profilometry.
    • This method enhances the accuracy of dynamic 3D measurements.