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Related Experiment Video

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Scene-adaptive pattern coding-based fringe projection profilometry: diffuse surfaces identification and 3-D

Yang Zhao, Haotian Yu, Yucheng Zheng

    Optics Express
    |October 20, 2023
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a novel method for accurate 3D shape reconstruction in cluttered scenes using fringe projection profilometry (FPP). The technique adaptively designs projection patterns to prevent indirect light interference, improving 3D perception accuracy.

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    Area of Science:

    • Optical Metrology
    • 3D Computer Vision

    Background:

    • Fringe projection profilometry (FPP) is a common 3D shape acquisition technique.
    • Cluttered scenes with non-diffuse surfaces cause indirect light interference, hindering accuracy in FPP.

    Purpose of the Study:

    • To develop a scene-adaptive method for accurate 3D shape perception in cluttered environments using FPP.
    • To mitigate the impact of indirect light in FPP by controlling surface illumination.

    Main Methods:

    • Theoretical analysis and modeling of indirect light influences in FPP.
    • Scene-adaptive pattern coding based on surface reflective properties.
    • Scene confidence analysis to identify diffuse surfaces and their pixels.
    • Camera-projection coordinate mapping and spatial pattern coding for targeted illumination.

    Main Results:

    • Accurate 3D shape reconstruction of diffuse surfaces in cluttered scenes.
    • Prevention of indirect light influences at the source by illuminating only diffuse surfaces.
    • Demonstrated superior accuracy and robustness compared to traditional methods.

    Conclusions:

    • The proposed scene-adaptive pattern coding method effectively overcomes indirect light challenges in FPP.
    • This approach achieves accurate 3D perception in cluttered scenes without extra hardware or high computational cost.
    • The method offers a robust and efficient solution for 3D shape acquisition in complex environments.