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Design tool for TOF and SL based 3D cameras.

Gregory Bouquet, Jostein Thorstensen, Kari Anne Hestnes Bakke

    Optics Express
    |November 3, 2017
    PubMed
    Summary

    This study introduces a new design tool for predicting 3D imaging precision in Time-of-flight (TOF) and Structured Light (SL) systems. The tool accurately forecasts measurement precision using only measurable parameters, aiding in system design.

    Area of Science:

    • Optics and Photonics
    • Computer Vision
    • Metrology

    Background:

    • Active illumination 3D imaging systems, including Time-of-flight (TOF) and Structured Light (SL), are advancing rapidly.
    • These systems are finding increasing applications across various fields.
    • Predicting the precision of these 3D imaging systems is crucial for their effective design and deployment.

    Purpose of the Study:

    • To present a theoretical design tool for predicting the 3D imaging precision of TOF and SL systems.
    • To develop theoretical expressions for TOF and SL imaging precision based on measurable parameters.
    • To validate the theoretical predictions with experimental measurements.

    Main Methods:

    • Development of theoretical expressions for 3D imaging precision in TOF and SL systems.

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  • Inclusion of only physically measurable parameters in the theoretical models.
  • Experimental 3D measurements using both TOF and SL imaging systems for validation.

    • Main Results:

    • Theoretical expressions for predicting 3D imaging precision were successfully derived for both TOF and SL systems.
    • The developed expressions utilize only measurable physical parameters, eliminating the need for fitting parameters.
    • Experimental results demonstrated excellent agreement between the theoretically predicted and experimentally measured distance precision.

    Conclusions:

    • The theoretical framework serves as a powerful design tool for 3D imaging systems.
    • It enables accurate prediction of 3D measurement precision during the design phase.
    • This facilitates the development of more precise and reliable active illumination 3D imaging systems.