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Updated: May 2, 2026

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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Accurate 3D Measurement of Complex Texture Objects by Height Compensation Using a Dual-Projector Structure.

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    |April 22, 2024
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    Summary
    This summary is machine-generated.

    This study introduces a dual-projector fringe projection profilometry method to improve 3D measurement accuracy for complex textured objects. The technique effectively compensates for errors, enhancing precision in challenging measurement scenarios.

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    Area of Science:

    • Optics and Photonics
    • Metrology
    • Computer Vision

    Background:

    • Fringe projection profilometry (FPP) is a key 3D measurement technique known for speed and accuracy.
    • Measurement accuracy in FPP degrades significantly with complex object textures, particularly at color junctions.

    Purpose of the Study:

    • To analyze the sources of error in FPP when measuring complex textured objects.
    • To propose and validate a novel height compensation method using a dual-projector system to mitigate these errors.

    Main Methods:

    • A dual-projector fringe projection system was designed and implemented.
    • A height compensation algorithm was developed to correct errors based on data from the dual projectors.
    • The system acquires pairs of errors with opposite signs for accurate 3D reconstruction.

    Main Results:

    • The proposed dual-projector method significantly improves 3D measurement accuracy for objects with complex textures.
    • Experimental results demonstrate substantial error reduction compared to traditional single-projector methods.
    • The ratio of acquired error pairs enables precise 3D information calculation.

    Conclusions:

    • The dual-projector fringe projection profilometry method effectively addresses accuracy limitations caused by complex object textures.
    • This approach offers a robust solution for high-precision 3D measurement of challenging surfaces.