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Related Experiment Video

Updated: Dec 27, 2025

A Protocol for Real-time 3D Single Particle Tracking
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Risley-prism-based tracking model for fast locating a target using imaging feedback.

Anhu Li, Zusheng Zhao, Xingsheng Liu

    Optics Express
    |March 4, 2020
    PubMed
    Summary
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    This study introduces a novel imaging tracking model using a Risley prism pair for rapid target acquisition. The developed boresight adjustment strategy achieves high accuracy in both static and dynamic tracking scenarios.

    Area of Science:

    • Optics and Photonics
    • Robotics and Control Systems
    • Computer Vision

    Background:

    • Fast imaging tracking is crucial for advanced target recognition and tracking systems.
    • Compact and efficient tracking models are essential for enhancing system performance.

    Purpose of the Study:

    • To develop an effective imaging tracking model utilizing a camera-integrated Risley prism pair.
    • To establish a boresight adjustment strategy for rapid target localization.
    • To analyze the impact of system parameters on tracking accuracy and dynamic performance.

    Main Methods:

    • Derivation of an imaging tracking model using the beam vector propagation method.
    • Implementation of an inverse ray tracing and iterative refinement method for boresight adjustment.

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  • Investigation of system parameter influences on accuracy and dynamic characteristics.

    • Main Results:

    • Root-mean-square tracking error below 4.5 pixels in static target experiments with a single adjustment.
    • Root-mean-square tracking error below 8.5 pixels for dynamic targets moving at 50 mm/s.
    • Demonstration of coupling mechanisms between prism rotation and imaging feedback.

    Conclusions:

    • The proposed method is feasible for fast imaging tracking applications.
    • The developed boresight adjustment strategy enables efficient and accurate target localization.
    • Understanding parameter influences is key to optimizing dynamic tracking performance.