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Easy-to-operate calibration method for structured light systems.

Rui Chen, Jing Xu, Zhiling Ye

    Applied Optics
    |November 10, 2016
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a new, affordable, and user-friendly calibration technique for structured light measurement systems. The method simplifies calibration by treating projector pixels as spatial lines-of-sight, validated by experiments.

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    Area of Science:

    • * Computer Vision
    • * Metrology
    • * Optical Engineering

    Background:

    • * Traditional calibration for structured light measurement systems is often costly and complex.
    • * Existing methods can be a barrier to widespread adoption due to operational difficulties.

    Purpose of the Study:

    • * To develop an accurate, low-cost, and easy-to-operate calibration method for structured light systems.
    • * To offer a practical alternative to conventional, expensive calibration procedures.

    Main Methods:

    • * A novel calibration approach conceptualizes each projector pixel as a distinct line-of-sight in 3D space.
    • * Utilizes an off-the-shelf Liquid Crystal Display (LCD) monitor to project calibration patterns.
    • * Employs a simplified geometric model for calibration without specialized hardware.

    Main Results:

    • * Experimental validation confirms the proposed method's accuracy.
    • * The technique demonstrates significant cost reduction compared to traditional approaches.
    • * Ease of operation is highlighted as a key advantage.

    Conclusions:

    • * The proposed calibration method offers a viable, cost-effective solution for structured light systems.
    • * Its simplicity and accuracy make it suitable for broader applications in 3D measurement.
    • * This advancement lowers the barrier to entry for utilizing structured light technology.