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Related Concept Videos

Orthogonal Trajectories01:26

Orthogonal Trajectories

Orthogonal trajectories describe the geometric relationship between two families of curves that intersect each other at right angles. One illustrative case involves a family of parabolas that open sideways along the x-axis. These curves share a common shape but differ by a scaling parameter, resulting in a set of curves that all pass through the origin and widen at different rates.Determining Orthogonal TrajectoriesTo identify the orthogonal trajectories for these parabolas, the first step...

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Related Experiment Video

Updated: Jun 12, 2026

Technical Approach for Infrared Tracking for Soft Tissue Navigation with a Holographic Head-Mounted Display and Preclinical Validation
10:25

Technical Approach for Infrared Tracking for Soft Tissue Navigation with a Holographic Head-Mounted Display and Preclinical Validation

Published on: September 2, 2025

Real-time optical holographic tracking of multiple objects.

T H Chao, H K Liu

    Applied Optics
    |June 16, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a real-time optical tracking system capable of simultaneously monitoring multiple objects. The technique uses a coded reference beam for independent object separation, offering advantages over digital methods.

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    Last Updated: Jun 12, 2026

    Technical Approach for Infrared Tracking for Soft Tissue Navigation with a Holographic Head-Mounted Display and Preclinical Validation
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    Published on: September 2, 2025

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    A Protocol for Real-time 3D Single Particle Tracking
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    A Protocol for Real-time 3D Single Particle Tracking

    Published on: January 3, 2018

    Area of Science:

    • Optics and Photonics
    • Image Processing
    • Real-time Systems

    Background:

    • Simultaneous tracking of multiple independent objects presents computational challenges for digital systems.
    • Optical correlation offers potential for high-speed parallel processing.

    Purpose of the Study:

    • To develop and evaluate a coherent optical correlation technique for real-time, simultaneous tracking of multiple objects.
    • To compare the performance of this optical system against digital computing systems.

    Main Methods:

    • Utilized a liquid crystal television spatial light modulator for real-time modulation.
    • Employed a dichromated gelatin multifocus hololens for optical processing.
    • Implemented a coded reference beam to separate correlation outputs for each target.

    Main Results:

    • Demonstrated successful real-time, simultaneous tracking of multiple independently moving objects.
    • Experimental results show the system's effectiveness in separating and tracking targets.
    • The optical system's real-time processing capability was experimentally validated.

    Conclusions:

    • The developed coherent optical correlation technique enables efficient, simultaneous multi-object tracking.
    • This optical approach offers a viable, high-performance alternative to digital tracking systems for specific applications.