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Related Experiment Video

Updated: May 5, 2026

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques
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Hydrodynamics of the turbulent point-spread function.

Guy Potvin

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |December 11, 2013
    PubMed
    Summary

    We developed hydrodynamic equations for imaging through atmospheric turbulence. This research aids in understanding optical flow estimation by modeling the air's refractive index dynamics.

    Area of Science:

    • Optics
    • Fluid Dynamics
    • Astrophysics

    Background:

    • Atmospheric turbulence distorts optical imaging.
    • Understanding refractive index dynamics is crucial for adaptive optics and remote sensing.

    Purpose of the Study:

    • Derive hydrodynamic equations for the point-spread function (PSF) in turbulent imaging.
    • Investigate the impact of advected turbulent fields on optical flow estimation.

    Main Methods:

    • Utilized path integral representation of paraxial wave propagation.
    • Modeled air's refractive index hydrodynamics.
    • Analyzed a frozen turbulent field advected by wind.

    Main Results:

    • Established hydrodynamic equations governing PSF in atmospheric turbulence.

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  • Demonstrated implications for optical flow estimation under advected turbulence.

    • Conclusions:

    • The derived hydrodynamic equations provide a novel framework for analyzing imaging through turbulence.
    • Future work includes experimental validation and exploring advanced optical flow algorithms.